Fix double semicolon in getRightDelimiter method (#1202)

The built-in stream: resource type let a template bypass Security stream
restrictions. BasePlugin::load() matches the 'stream' sysplugin before the
stream_get_wrappers()/isTrustedStream() check, so a resource such as
stream:php://filter/read=convert.base64-encode/resource=/path was opened by
StreamPlugin::getContent() via fopen() on the nested php:// wrapper without
ever validating it. This bypassed Security::$streams (including
Security::$streams = null) and allowed reading arbitrary local files.

Parse the wrapper scheme from the resolved path in StreamPlugin::getContent()
and validate it with Security::isTrustedStream() before fopen(), giving the
stream: resource the same check the direct wrapper path already receives.

Adds regression tests covering the disabled-streams bypass, the
not-on-allowlist case, and a positive test that an explicitly allowed wrapper
still works.

.gitattributes

@@ -7,13 +7,13 @@
 
 # exclude from git export
 /tests export-ignore
-/utilities/ export-ignore
-
+/utilities export-ignore
+/docker-compose.yml export-ignore
+/.github export-ignore
+/run_tests_for_all_php_versions.sh export-ignore
 /.gitattributes export-ignore
 /.gitignore export-ignore
-/.travis.yml export-ignore
 /make-release.sh export-ignore
 /phpunit.sh export-ignore
 /phpunit.xml export-ignore
 /TODO.md export-ignore
-/travis.ini export-ignore

.github/FUNDING.yml

@@ -0,0 +1 @@
+github: [wisskid]

.github/workflows/ci.yml

@@ -0,0 +1,70 @@
+# https://help.github.com/en/categories/automating-your-workflow-with-github-actions
+
+on:
+  pull_request:
+  push:
+    branches:
+      - 'master'
+
+name: CI
+
+jobs:
+  tests:
+    name: Tests
+
+    runs-on: ${{ matrix.os }}
+
+    env:
+      PHP_EXTENSIONS: dom, json, libxml, mbstring, pdo_sqlite, soap, xml, xmlwriter
+      PHP_INI_VALUES: assert.exception=1, zend.assertions=1
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - windows-latest
+
+        php-version:
+          - "7.2"
+          - "7.3"
+          - "7.4"
+          - "8.0"
+          - "8.1"
+          - "8.2"
+          - "8.3"
+          - "8.4"
+          - "8.5"
+
+        compiler:
+          - default
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+
+    - name: Install PHP with extensions
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php-version }}
+        coverage: pcov
+        extensions: ${{ env.PHP_EXTENSIONS }}
+        ini-values: ${{ env.PHP_INI_VALUES }}
+
+    - name: Cache Composer packages
+      id: composer-cache
+      uses: actions/cache@v4
+      with:
+        path: vendor
+        key: v5r2-${{ runner.os }}-php-${{ matrix.php-version }}-${{ hashFiles('**/composer.lock') }}
+        restore-keys: |
+          v5r1-${{ runner.os }}-php-${{ matrix.php-version }}-
+
+    - name: Install dependencies
+      run: composer install
+
+    - name: Run make
+      run: make -B
+
+    - name: Run tests with phpunit
+      run: php ./vendor/phpunit/phpunit/phpunit

.gitignore

@@ -1,13 +1,11 @@
 
 .idea/
 
-# Smarty
-lexer/*.php
-lexer/*.php.bak
-lexer/*.out
-utilies/*.php
+/site
 
-# Dev
 phpunit*
+.phpunit.result.cache
 vendor/*
 composer.lock
+
+

.travis.yml

@@ -1,39 +0,0 @@
-language: php
-os: linux
-dist: xenial
-
-install:
-  - travis_retry composer install
-
-jobs:
-  include:
-   - php: 5.3 # Composer and PHPUnit require PHP 5.3.2+ to run, so we cannot test below 5.3
-     dist: precise # PHP 5.3 is supported only on Precise.
-   - php: 5.4
-     dist: trusty  # PHP 5.4 is supported only on Trusty.
-   - php: 5.5
-     dist: trusty  # PHP 5.5 is supported only on Trusty.
-   - php: 5.6
-   - php: 7.0
-   - php: 7.1
-   - php: 7.2
-   - php: 7.3
-   - php: 7.4
-   - php: nightly
-     install: travis_retry composer config platform.php 7.4.0 && composer install
-  fast_finish: true
-  allow_failures:
-   - php: nightly # PHP 8 is still in beta
-
-services:
-  - memcached
-  - mysql
-
-before_script:
-  - mysql -e "create database IF NOT EXISTS test;" -uroot
-
-before_install:
-  - phpenv config-rm xdebug.ini || return 0
-
-script:
-  - ./phpunit.sh

AGENTS.md

@@ -0,0 +1,87 @@
+# AGENTS.md
+
+This file is the single source of truth for AI coding assistants working in this repo (including Claude Code, claude.ai/code).
+
+## Project
+
+Smarty v5 — PHP template engine. Single Composer package (`smarty/smarty`), namespace `Smarty\`, source in `src/`, autoloaded via PSR-4. Supports PHP 7.2–8.5.
+
+Do not use PHP syntax newer than 7.2 in `src/` unless it is guarded for older runtimes.
+
+## Commands
+
+```bash
+# Install dependencies
+composer install
+
+# Regenerate lexers and parsers (required before tests; CI runs this)
+make -B
+
+# Run all tests
+php ./vendor/phpunit/phpunit/phpunit
+
+# Run a single test file
+php ./vendor/phpunit/phpunit/phpunit tests/UnitTests/TemplateSource/TagTests/If/CompileIfTest.php
+
+# Run tests matching a PHPUnit group
+php ./vendor/phpunit/phpunit/phpunit --group 20221124
+
+# Run tests excluding slow group
+php ./vendor/phpunit/phpunit/phpunit --exclude-group slow
+```
+
+There is no linter or static analysis configured. No typecheck step.
+
+## Generated code — do not hand-edit
+
+Four files are generated from grammar/lexer definitions via `make`:
+
+| Source (edit this) | Generated (do not edit) |
+|---|---|
+| `src/Lexer/TemplateLexer.plex` | `src/Lexer/TemplateLexer.php` |
+| `src/Lexer/ConfigfileLexer.plex` | `src/Lexer/ConfigfileLexer.php` |
+| `src/Parser/TemplateParser.y` | `src/Parser/TemplateParser.php` |
+| `src/Parser/ConfigfileParser.y` | `src/Parser/ConfigfileParser.php` |
+
+After editing a `.plex` or `.y` file, run `make -B` to regenerate. The generators require the `smarty/smarty-lexer` dev dependency.
+
+## Architecture
+
+- `src/Smarty.php` — main class, extends `TemplateBase`. Version constant: `Smarty::SMARTY_VERSION`.
+- `src/Compile/`, `src/Compiler/` — template compilation pipeline.
+- `src/Lexer/`, `src/Parser/` — lexer/parser (generated, see above).
+- `src/Extension/` — extension system (`ExtensionInterface`, `CoreExtension`, `DefaultExtension`, `BCPluginsAdapter`).
+- `src/Runtime/` — runtime helpers (foreach, capture, inheritance, tpl functions).
+- `src/Resource/`, `src/Cacheresource/` — template resource and cache resource handlers.
+- `src/BlockHandler/`, `src/FunctionHandler/`, `src/Filter/` — built-in tags, functions, and filters.
+- `libs/Smarty.class.php` — non-Composer autoload stub. Points to `src/`. Not the main source.
+- `src/functions.php` — global helper functions, always loaded via Composer `files` autoload.
+
+## Tests
+
+- Framework: PHPUnit 7.5/8.5 (bootstrap: `tests/Bootstrap.php`).
+- All tests extend `PHPUnit_Smarty` (defined in `tests/PHPUnit_Smarty.php`), which provides `setUpSmarty($dir)`.
+- Test suite root: `tests/UnitTests/`. Typical test `setUp()` calls `$this->setUpSmarty(__DIR__)`.
+- Each test directory may have its own `templates/`, `configs/` subdirectories. Compiled output goes to `templates_c/` and `cache/` (auto-created by the test harness).
+- Running the suite scatters generated `templates_c/`, `cache/`, and `templates_tmp/` directories (and empty runtime `templates/`/`configs/` dirs) throughout `tests/` and the repo root. These are not tracked — treat them as noise in `git status`, never commit them, and clean them with `git clean -fd` (exclude tool dirs like `.serena`).
+- Three test files are excluded in `phpunit.xml`: Memcache, APC, and HttpModifiedSince tests (require external services).
+- Tests needing MySQL/PDO are gated by constants in `tests/Config.php` (disabled by default).
+
+## CI
+
+GitHub Actions (`.github/workflows/ci.yml`): matrix of PHP 7.2–8.5 on ubuntu + windows. Steps: `composer install` → `make -B` → `phpunit`. No deploy step.
+
+## Docs
+
+Markdown in `docs/`, built with mkdocs + Material theme. Install the toolchain with `pip install -r docs/requirements.txt`, then preview with `mkdocs serve`. Published via `mike deploy 5.x`.
+
+## Release
+
+`./make-release.sh <version>` — only v5.x.x. Updates changelog and version constant, creates a merge commit and tag on `master`.
+
+### Changelog
+
+Every change that should appear in `CHANGELOG.md` must add a new markdown file under `changelog/`. At release time `utilities/update-changelog.php` concatenates all `changelog/*.md` files into the `## [Unreleased]` section, so:
+
+- One file per change, containing a single line that starts with a dash (`- ...`). The filename is arbitrary; name it after the issue number (e.g. `1036.md`) when there is one, otherwise use a short descriptive slug.
+- Include a markdown link to the relevant issue when one exists, e.g. `[#1036](https://github.com/smarty-php/smarty/issues/1036)`. Omit the link when there is no public issue (e.g. embargoed security reports).

CHANGELOG.md

@@ -6,6 +6,347 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [5.8.4] - 2026-06-29
+- Fixed a `TypeError` on PHP 8 when `Security::$static_classes` was set to a non-array value (e.g. the string `'none'`) to disable static class access; any non-array value now cleanly denies access. Use `Security::$static_classes = null` to disable access to all static classes.
+- Security: the built-in `stream:` resource type now validates the nested stream wrapper against the security policy, so a template such as `stream:php://filter/...` can no longer bypass `Security::$streams` (including `Security::$streams = null`) to read local files (CWE-22)
+
+
+## [5.8.3] - 2026-06-28
+- fixed a regression from #1189 where a child template's block override no longer applied to a template {include}d by the parent [#1192](https://github.com/smarty-php/smarty/issues/1192)
+
+
+## [5.8.2] - 2026-06-24
+- Security: prevent symlinks inside a trusted `secure_dir`/template directory from being used to read files outside of it (CWE-22 path traversal), affecting `{include}` and `{fetch}` of local files
+- Security: `{html_image}` now escapes the `file`, `path_prefix`, `href`/`link`, `width` and `height` attributes (it already escaped `alt` and pass-through attributes), and `{html_select_date}` casts `day_size`/`month_size`/`year_size` to int (matching `{html_select_time}`), preventing untrusted values passed into these attributes from breaking out of the generated HTML (CWE-79)
+- Security: `{fetch}` no longer follows HTTP redirects for remote resources while a security policy is active, preventing an open redirect on a trusted host from bypassing `trusted_uri` (CWE-918 server-side request forgery)
+- Fixed "Attempt to assign property step on null" error when using a {for} loop inside a block of an extended template [#1036](https://github.com/smarty-php/smarty/issues/1036)
+
+
+## [5.8.1] - 2026-06-23
+- Re-activated unit tests for user literals, which were previously disabled due to a bug in refactoring to v5.
+- fixed a bug where child template's block content leaked into subsequent rendering of the parent template [#1189](https://github.com/smarty-php/smarty/issues/1189)
+- Moved all unit test-generated output from inside the working tree to tmp files [#1178](https://github.com/smarty-php/smarty/issues/1178)
+
+
+## [5.8.0] - 2026-02-15
+- Added support for Backed Enums for php versions >= 8.1 [#1171](https://github.com/smarty-php/smarty/pull/1171)
+- Added support for new 'matches' operator doing regex matching [#1169](https://github.com/smarty-php/smarty/pull/1169)
+- Update documentation to clarify that include inline is currently not implemented in Smarty v5 [#1152](https://github.com/smarty-php/smarty/issues/1152)
+- Support for Laravel Collections style object chaining for objects return from function calls implemented as modifiers [#1151](https://github.com/smarty-php/smarty/issues/1151)
+
+
+## [5.7.0] - 2025-11-19
+- PHP 8.5 support
+
+
+## [5.6.0] - 2025-10-03
+- Added support for shorttags in functions [#1005](https://github.com/smarty-php/smarty/issues/1005)
+
+
+## [5.5.2] - 2025-08-26
+
+
+- Fixed escaping of array/object keys in debug_print_var
+
+## [5.5.1] - 2025-05-19
+- Fix missing support for loading modifiercompilers from plugin dir in BCPluginsAdapter [#1132](https://github.com/smarty-php/smarty/pull/1132)
+
+
+## [5.5.0] - 2025-05-03
+- Support trailing comma in array [#1013](https://github.com/smarty-php/smarty/issues/1013)
+
+
+## [5.4.5] - 2025-04-15
+- Fixed deprecation notice in StringEval in PHP8.4 [#1119](https://github.com/smarty-php/smarty/issues/1119)
+
+
+## [5.4.4] - 2025-04-13
+- Fix syntax error occurring when registering a function plugin that ends with the string 'close' [#1122](https://github.com/smarty-php/smarty/issues/1122)
+- Replace SMARTY_VERSION constant with $smarty.version in debug.tpl [#1073](https://github.com/smarty-php/smarty/issues/1073)
+
+
+## [5.4.3] - 2024-12-23
+- Fix PHP backtraces by qualifying/replacing `call_user_func_array` calls [#1074](https://github.com/smarty-php/smarty/issues/1074)
+
+
+## [5.4.2] - 2024-11-20
+
+
+- Support the deprecations introduced in PHP 8.4 and added tests for PHP 8.4 [#1043](https://github.com/smarty-php/smarty/pull/1043)
+
+## [5.4.1] - 2024-08-29
+
+
+- Enable (and fix) unit tests for Windows [#1046](https://github.com/smarty-php/smarty/pull/1046)
+- Fix the use of "extends:" to define the inheritance tree on Windows [#1018](https://github.com/smarty-php/smarty/issues/1018)
+
+## [5.4.0] - 2024-08-14
+- Fixing forced OpCache invalidation on every template include, which is resulting in fast raising wasted OpCache memory [#1007](https://github.com/smarty-php/smarty/issues/1007) 
+- Improvement of auto-escaping [#1030](https://github.com/smarty-php/smarty/pull/1030)
+
+
+## [5.3.1] - 2024-06-16
+- Fixed error when using section with nocache [#1034](https://github.com/smarty-php/smarty/issues/1034)
+
+
+## [5.3.0] - 2024-05-30
+- Fix warning when calling hasVariable for an undefined variable [#977](https://github.com/smarty-php/smarty/issues/977)
+- Added `$smarty->prependTemplateDir()` method [#1022](https://github.com/smarty-php/smarty/issues/1022)
+
+
+## [5.2.0] - 2024-05-28
+- Fixed a code injection vulnerability in extends-tag. This addresses CVE-2024-35226.
+- Added `$smarty->setCacheModifiedCheck()` setter for cache_modified_check
+- Added a PSR-4 loading script to allow Smarty to be used without Composer [#1017](https://github.com/smarty-php/smarty/pull/1017)
+
+
+## [5.1.0] - 2024-04-22
+- Prevent deprecation notices during compilation in PHP8.3 [#996](https://github.com/smarty-php/smarty/issues/996)
+- Fix that getTemplateVars would return an array of objects instead of the assigned variables values [#994](https://github.com/smarty-php/smarty/issues/994)
+- Fix Smarty::assign() not returning $this when called with an array as first parameter [#972](https://github.com/smarty-php/smarty/pull/972)
+- Documented support for `{if $element is in $array}` syntax [#937](https://github.com/smarty-php/smarty/issues/937)
+- Added support for `{if $element is not in $array}` syntax [#937](https://github.com/smarty-php/smarty/issues/937)
+- Using stream variables in templates now throws a deprecation notice [#933](https://github.com/smarty-php/smarty/pull/933)
+- Internal compiler classes always return a string (the internal has_code flag has been removed for simplicity) [#918](https://github.com/smarty-php/smarty/pull/918)
+- Fix invalid classnames in Runtime code for foreach [#1000](https://github.com/smarty-php/smarty/issues/1000)
+
+## [5.0.2] - 2024-03-28
+- Fix Smarty::assign() not returning $this when called with an array as first parameter [#972](https://github.com/smarty-php/smarty/pull/972)
+
+## [5.0.1] - 2024-03-27
+- Fix error in Smarty\Smarty::compileAllTemplates() by including missing FilesystemIterator class [#966](https://github.com/smarty-php/smarty/issues/966)  
+
+## [5.0.0] - 2024-03-25
+- Fixed that scoped variables would overwrite parent scope [#952](https://github.com/smarty-php/smarty/issues/952)
+- Removed publicly accessible `$tpl->_var_stack` variable
+
+### Fixed
+- Too many shorthand attributes error when using a modifier as a function with more than 3 parameters in an expression [#949](https://github.com/smarty-php/smarty/issues/949)
+
+### Removed
+- Dropped support for undocumented `{time()}` added in v5.0.0 since we already have the documented `{$smarty.now}`
+
+## [5.0.0-rc3] - 2024-02-26
+
+### Added
+- PHP8.3 support [#925](https://github.com/smarty-php/smarty/issues/925)
+- Backlink to GitHub in docs
+- Explain how to do escaping and set-up auto-escaping in docs [#865](https://github.com/smarty-php/smarty/issues/865)
+- Link to variable scope page in the documentation for the assign tag [#878](https://github.com/smarty-php/smarty/issues/878)
+- Add support for implode, substr and json_encode as modifiers/functions in templates [#939](https://github.com/smarty-php/smarty/issues/939)
+- Add template path to CompilerException to enable rich debug features [#935](https://github.com/smarty-php/smarty/issues/935)
+
+### Fixed
+- The {debug} tag was broken in v5 [#922](https://github.com/smarty-php/smarty/issues/922)
+- Documentation on `{if $x is even by $y}` syntax
+- Fix incorrect compilation of expressions when escape_html=true [#930](https://github.com/smarty-php/smarty/pull/930)
+
+## [5.0.0-rc2] - 2023-11-11
+
+### Fixed
+- Registered output filters wouldn't run [#899](https://github.com/smarty-php/smarty/issues/899)
+- Use of negative numbers in {math} equations [#895](https://github.com/smarty-php/smarty/issues/895)
+- Do not auto-html-escape custom function results [#906](https://github.com/smarty-php/smarty/issues/906)
+- Fix case-sensitive tag names [#907](https://github.com/smarty-php/smarty/issues/907)
+
+### Removed
+- Removed `$smarty->registered_filters` array
+
+## [5.0.0-rc1] - 2023-08-08
+
+### Added
+- Added support for PHP8.2
+- Added a new way to extend Smarty functionality using `Smarty::addExtension()` or `Smarty::setExtensions()`. Please see the docs for more information.
+- Custom tags can accept positional parameters, so you can write a block compiler that support this: `{trans "Jack" "dull boy"}All work and no play makes %s a %s.{/trans}` [#164](https://github.com/smarty-php/smarty/issues/164)
+- Full support for ternary operator: `{$test ? $a : $b}` and `{$var ?: $value_if_falsy}` [#881](https://github.com/smarty-php/smarty/issues/881)
+- Full support for null coalescing operator: `{$var ?? $value_if_null}` [#882](https://github.com/smarty-php/smarty/issues/882)
+
+### Changed
+- All Smarty code is now in the \Smarty namespace. For simple use-cases, you only need to add
+  `use \Smarty\Smarty;` to your script and everything will work. If you extend Smarty or use
+  Smarty plug-ins, please review your code to see if they assume specific class or method names.
+  E.g.: `Smarty_Internal_Template` is now `\Smarty\Template\`, `SmartyException` is now `\Smarty\Exception`.
+- Template variable scope bubbling has been simplified and made more consistent. 
+  The global scope now equals the Smarty scope in order to avoid global state side effects. Please read
+  the documentation for more details.
+- Lexers and Parsers PHP files are reliably generated from sources (.y and .plex) using the make file 
+- Smarty now always runs in multibyte mode, using `symfony/polyfill-mbstring` if required. Please use the
+  multibyte extension for optimal performance.
+- Smarty no longer calls `mb_internal_encoding()` and doesn't check for deprecated `mbstring.func_overload` ini directive [#480](https://github.com/smarty-php/smarty/issues/480)
+- Generated `<script>` tags lo longer have deprecated `type="text/javascript"` or `language="Javascript"` attributes [#815](https://github.com/smarty-php/smarty/issues/815)
+- Smarty will throw a compiler exception instead of silently ignoring a modifier on a function call, like this: `{include|dot:"x-template-id" file="included.dot.tpl"}` [#526](https://github.com/smarty-php/smarty/issues/526) 
+- The documentation was largely rewritten
+
+### Deprecated
+- `$smarty->getPluginsDir()`
+- `$smarty->loadFilter()`
+- `$smarty->setPluginsDir()`
+- `$smarty->assignGlobal()`
+- Using `$smarty->registerFilter()` for registering variable filters will trigger a notice.
+
+### Removed
+- Dropped support for PHP7.1
+- Removed `$smarty->left_delimiter` and `$smarty->right_delimiter`, use `$smarty->getLeftDelimiter()`/`$smarty->setLeftDelimiter()` and `$smarty->getRightDelimiter()`/`$smarty->setRightDelimiter()`
+- Removed support for the `$cache_attrs` parameter for registered plugins
+- Removed support for undocumented `{make_nocache}` tag
+- Removed support for deprecated `{insert}` tag, the 'insert' plugin type and the associated $smarty->trusted_dir variable
+- Removed the undocumented `{block_parent}` and `{parent}` alternatives to `{$smarty.block.parent}`
+- Removed the undocumented `{block_child}` and `{child}` alternatives to `{$smarty.block.child}`
+- Removed support for loading config files into a non-local scope using `{config_load}` from a template 
+- Removed `$smarty->autoload_filters` in favor of `$smarty->registerFilter()`
+- Removed `$smarty->trusted_dir` and `$smarty->allow_php_templates` since support for executing php scripts from templates has been dropped  
+- Removed `$smarty->php_functions` and `$smarty->php_modifiers`. 
+- You can no longer use native PHP-functions or userland functions in your templates without registering them. If you need a function in your templates,
+  register it first.
+- Removed support for `$smarty->getTags()`
+- Removed the abandoned `$smarty->direct_access_security` setting
+- Dropped support for `$smarty->plugins_dir` and `$smarty->use_include_path`. If you must, use `$smarty->addPluginsDir()` instead,
+  but it's better to use Smarty::addExtension() to add an extension or Smarty::registerPlugin to
+  quickly register a plugin using a callback function.
+- Removed constants such as SMARTY_DIR to prevent global side effects.
+- Removed direct access to `$smarty->template_dir`. Use `$smarty->setTemplateDir()`.
+- Removed direct access to `$smarty->cache_dir`. Use `$smarty->setCacheDir()`.
+- Removed direct access to `$smarty->compile_dir`. Use `$smarty->setCompileDir()`.
+- Removed `$smarty->loadPlugin()`, use `$smarty->registerPlugin()` instead.
+- Removed `$smarty->appendByRef()` and `$smarty->assignByRef()`.
+- Removed `$smarty->_current_file`
+- Removed `$smarty->allow_ambiguous_resources` (ambiguous resources handlers should still work)
+
+### Fixed
+- `|strip_tags` does not work if the input is 0 [#890](https://github.com/smarty-php/smarty/issues/890)
+
+## [4.3.2] - 2023-07-19
+
+### Fixed
+- `$smarty->muteUndefinedOrNullWarnings()` now also mutes PHP8 warnings for undefined properties
+
+## [4.3.1] - 2023-03-28
+
+### Security
+- Fixed Cross site scripting vulnerability in Javascript escaping. This addresses CVE-2023-28447.
+
+### Fixed
+- `$smarty->muteUndefinedOrNullWarnings()` now also mutes PHP7 notices for undefined array indexes [#736](https://github.com/smarty-php/smarty/issues/736)
+- `$smarty->muteUndefinedOrNullWarnings()` now treats undefined vars and array access of a null or false variables 
+  equivalent across all supported PHP versions
+- `$smarty->muteUndefinedOrNullWarnings()` now allows dereferencing of non-objects across all supported PHP versions [#831](https://github.com/smarty-php/smarty/issues/831)
+- PHP 8.1 deprecation warnings on null strings in modifiers [#834](https://github.com/smarty-php/smarty/pull/834)
+
+## [4.3.0] - 2022-11-22
+
+### Added
+- PHP8.2 compatibility [#775](https://github.com/smarty-php/smarty/pull/775)
+
+### Changed
+- Include docs and demo in the releases [#799](https://github.com/smarty-php/smarty/issues/799)
+- Using PHP functions as modifiers now triggers a deprecation notice because we will drop support for this in the next major release [#813](https://github.com/smarty-php/smarty/issues/813) 
+- Dropped remaining references to removed PHP-support in Smarty 4 from docs, lexer and security class. [#816](https://github.com/smarty-php/smarty/issues/816)
+- Support umask when writing (template) files and set dir permissions to 777 [#548](https://github.com/smarty-php/smarty/issues/548) [#819](https://github.com/smarty-php/smarty/issues/819) 
+ 
+### Fixed
+- Output buffer is now cleaned for internal PHP errors as well, not just for Exceptions [#514](https://github.com/smarty-php/smarty/issues/514)
+- Fixed recursion and out of memory errors when caching in complicated template set-ups using inheritance and includes [#801](https://github.com/smarty-php/smarty/pull/801)
+- Fixed PHP8.1 deprecation errors in strip_tags 
+- Fix Variable Usage in Exception message when unable to load subtemplate [#808](https://github.com/smarty-php/smarty/pull/808)
+- Fixed PHP8.1 deprecation notices for strftime [#672](https://github.com/smarty-php/smarty/issues/672)
+- Fixed PHP8.1 deprecation errors passing null to parameter in trim [#807](https://github.com/smarty-php/smarty/pull/807)
+- Adapt Smarty upper/lower functions to be codesafe (e.g. for Turkish locale) [#586](https://github.com/smarty-php/smarty/pull/586)
+- Bug fix for underscore and limited length in template name in custom resources [#581](https://github.com/smarty-php/smarty/pull/581)
+
+## [4.2.1] - 2022-09-14
+
+### Security
+- Applied appropriate javascript and html escaping in mailto plugin to counter injection attacks [#454](https://github.com/smarty-php/smarty/issues/454)
+
+### Fixed
+- Fixed PHP8.1 deprecation notices in modifiers (upper, explode, number_format and replace) [#755](https://github.com/smarty-php/smarty/pull/755) and [#788](https://github.com/smarty-php/smarty/pull/788)
+- Fixed PHP8.1 deprecation notices in capitalize modifier [#789](https://github.com/smarty-php/smarty/issues/789)
+- Fixed use of `rand()` without a parameter in math function [#794](https://github.com/smarty-php/smarty/issues/794)
+- Fixed unselected year/month/day not working in html_select_date [#395](https://github.com/smarty-php/smarty/issues/395)
+
+## [4.2.0] - 2022-08-01
+
+### Fixed
+- Fixed problems with smarty_mb_str_replace [#549](https://github.com/smarty-php/smarty/issues/549)
+- Fixed second parameter of unescape modifier not working [#777](https://github.com/smarty-php/smarty/issues/777)
+
+### Changed
+- Updated HTML of the debug template [#599](https://github.com/smarty-php/smarty/pull/599)
+
+## [4.1.1] - 2022-05-17
+
+### Security
+- Prevent PHP injection through malicious block name or include file name. This addresses CVE-2022-29221
+
+### Fixed
+- Exclude docs and demo from export and composer [#751](https://github.com/smarty-php/smarty/pull/751)
+- PHP 8.1 deprecation notices in demo/plugins/cacheresource.pdo.php [#706](https://github.com/smarty-php/smarty/issues/706)
+- PHP 8.1 deprecation notices in truncate modifier [#699](https://github.com/smarty-php/smarty/issues/699)
+- Math equation `max(x, y)` didn't work anymore [#721](https://github.com/smarty-php/smarty/issues/721)
+- Fix PHP 8.1 deprecated warning when calling rtrim [#743](https://github.com/smarty-php/smarty/pull/743)
+- PHP 8.1: fix deprecation in escape modifier [#727](https://github.com/smarty-php/smarty/pull/727)
+
+## [4.1.0] - 2022-02-06
+
+### Added
+- PHP8.1 compatibility [#713](https://github.com/smarty-php/smarty/pull/713)
+
+## [4.0.4] - 2022-01-18
+
+### Fixed
+- Fixed illegal characters bug in math function security check [#702](https://github.com/smarty-php/smarty/issues/702)
+
+## [4.0.3] - 2022-01-10
+
+### Security
+- Prevent evasion of the `static_classes` security policy. This addresses CVE-2021-21408
+
+## [4.0.2] - 2022-01-10
+
+### Security
+- Prevent arbitrary PHP code execution through maliciously crafted expression for the math function. This addresses CVE-2021-29454
+
+## [4.0.1] - 2022-01-09
+
+### Security
+- Rewrote the mailto function to not use `eval` when encoding with javascript
+
+## [4.0.0] - 2021-11-25
+
+## [4.0.0-rc.0] - 2021-10-13
+
+### Added
+- You can now use `$smarty->muteUndefinedOrNullWarnings()` to activate convert warnings about undefined or null template vars to notices when running PHP8
+
+### Changed
+- Switch CI from Travis to Github CI
+- Updated unit tests to avoid skipped and risky test warnings
+
+### Removed
+- Dropped support for PHP7.0 and below, so Smarty now requires PHP >=7.1
+- Dropped support for php asp tags in templates (removed from php since php7.0)
+- Dropped deprecated API calls that where only accessible through SmartyBC
+- Dropped support for {php} and {include_php} tags and embedded PHP in templates. Embedded PHP will now be passed through as is.
+- Removed all PHP_VERSION_ID and compare_version checks and conditional code blocks that are now no longer required
+- Dropped deprecated SMARTY_RESOURCE_CHAR_SET and SMARTY_RESOURCE_DATE_FORMAT constants
+- Dropped deprecated Smarty::muteExpectedErrors and Smarty::unmuteExpectedErrors API methods
+- Dropped deprecated $smarty->getVariable() method. Use $smarty->getTemplateVars() instead.
+- $smarty->registerResource() no longer accepts an array of callback functions
+
+## [3.1.40] - 2021-10-13
+
+### Changed
+- modifier escape now triggers a E_USER_NOTICE when an unsupported escape type is used https://github.com/smarty-php/smarty/pull/649
+
+### Security
+- More advanced javascript escaping to handle https://html.spec.whatwg.org/multipage/scripting.html#restrictions-for-contents-of-script-elements thanks to m-haritonov
+
+## [3.1.39] - 2021-02-17
+
+### Security
+- Prevent access to `$smarty.template_object` in sandbox mode. This addresses CVE-2021-26119.
+- Fixed code injection vulnerability by using illegal function names in `{function name='blah'}{/function}`. This addresses CVE-2021-26120.
+
 ## [3.1.38] - 2021-01-08
 
 ### Fixed
@@ -1655,7 +1996,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 27.09.2011
 - bugfix possible warning "attempt to modify property of non-object" in {section} (issue #34)
-- added chaining to Smarty_Internal_Data so $smarty->assign('a',1)->assign('b',2); is possible now
+- added chaining to \Smarty\Data so $smarty->assign('a',1)->assign('b',2); is possible now
 - bugfix remove race condition when a custom resource did change timestamp during compilation
 - bugfix variable property did not work on objects variable in template
 - bugfix smarty_make_timestamp() failed to process DateTime objects properly
@@ -1990,7 +2331,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - optimize smarty_modified_escape for hex, hexentity, decentity.
 
 28/12/2010
-- changed $tpl_vars, $config_vars and $parent to belong to Smarty_Internal_Data
+- changed $tpl_vars, $config_vars and $parent to belong to \Smarty\Data
 - added Smarty::registerCacheResource() for dynamic cache resource object registration
 
 27/12/2010

COMPOSER_RELEASE_NOTES.txt

@@ -1,31 +0,0 @@
-
-
-Starting with Smarty 3.1.21 Composer has been configured to load the packages from github.
-
-*******************************************************************************
-*                                                                             *
-*  NOTE: Because of this change you must clear your local composer cache with *
-*                 the "composer clearcache" command                           *
-*                                                                             *
-*******************************************************************************
-
-To get the latest stable version use
-    "require": {
-        "smarty/smarty": "~3.1"
-    }
-in your composer.json file.
-
-To get the trunk version use
-    "require": {
-        "smarty/smarty": "~3.1@dev"
-    }
-
-The "smarty/smarty" package will start at libs/....   subfolder.
-
-To retrieve the development and documentation folders add
-    "require-dev": {
-        "smarty/smarty-dev": "~3.1@dev"
-    }
-
-If you are using (include) the composer generated autoloader.php which is located
-in the /vendor folder it is no longer needed to require the Smarty.class.php file.

CONTRIBUTING.md

@@ -0,0 +1,126 @@
+# Contributing to Smarty
+
+First off, thanks for taking the time to contribute! ❤️
+
+> And if you like the project, but just don't have time to contribute, that's fine. There are other easy ways to support the project and show your appreciation, which we would also be very happy about:
+> - Star the project
+> - Tell a friend about it
+> - Refer this project in your project's readme
+> - Mention the project at local meetups and tell your friends/colleagues
+
+## I Have a Question
+
+> If you want to ask a question, we assume that you have read the available [Documentation](https://smarty-php.github.io/smarty).
+
+Before you ask a question, it is best to search for existing [Issues](https://github.com/smarty-php/smarty/issues) that might help you. 
+In case you have found a suitable issue and still need clarification, you can write your question in this issue. 
+It is also advisable to search the internet for answers first.
+
+If you then still feel the need to ask a question and need clarification, we recommend the following:
+
+- [Open an Issue](https://github.com/smarty-php/smarty/issues/new).
+- Provide as much context as you can about what you're running into.
+- Provide Smarty and PHP versions
+
+We will then take care of the issue as soon as possible.
+
+## I Want To Contribute
+
+> ### Legal Notice
+> When contributing to this project, you must agree that you have authored 100% of the content, 
+> that you have the necessary rights to the content and that the content you contribute may be provided under the project license.
+
+### Reporting Bugs
+
+#### Before Submitting a Bug Report
+
+A good bug report shouldn't leave others needing to chase you up for more information. Therefore, we ask you to 
+investigate carefully, collect information and describe the issue in detail in your report. Please complete the 
+following steps in advance to help us fix any potential bug as fast as possible.
+
+- Make sure that you are using the latest version.
+- Determine if your bug is really a bug and not an error on your side. (Make sure that you have read the [documentation](https://smarty-php.github.io/smarty). If you are looking for support, you might want to check [this section](#i-have-a-question)).
+- To see if other users have experienced (and potentially already solved) the same issue you are having, check if there is not already a bug report existing for your bug or error in the [bug tracker](https://github.com/smarty-php/smarty/issues?q=label%3Abug).
+- Also make sure to search the internet (including Stack Overflow) to see if users outside of the GitHub community have discussed the issue.
+- Collect information about the bug:
+  - For an Exception: please provide the Stack trace
+  - OS (Windows, Linux, macOS)
+  - PHP version
+  - Smarty version
+  - A minimal snippet of (your) code that triggers the bug
+  - Expected output versus actual output
+  - Can you reliably reproduce the issue? And can you also reproduce it with older versions?
+
+#### How Do I Submit a Good Bug Report?
+
+> You must never report security related issues, vulnerabilities or bugs including sensitive information to the issue tracker, or elsewhere in public. 
+> For sensitive bugs, please see [SECURITY.md](SECURITY.md).
+
+We use GitHub issues to track bugs and errors. If you run into an issue with the project:
+
+- Open an [Issue](https://github.com/smarty-php/smarty/issues/new). (Since we can't be sure at this point whether it is a bug or not, we ask you not to talk about a bug yet and not to label the issue.)
+- Explain the behavior you would expect and the actual behavior.
+- Please provide as much context as possible and describe the *reproduction steps* that someone else can follow to recreate the issue on their own. This usually includes your code. For good bug reports you should isolate the problem and create a reduced test case.
+- Provide the information you collected in the previous section.
+
+Once it's filed:
+
+- The project team will label the issue accordingly.
+- A team member will try to reproduce the issue with your provided steps. If there are no reproduction steps or no obvious way to reproduce the issue, the team will ask you for those steps and mark the issue as `needs-repro`. Bugs with the `needs-repro` tag will not be addressed until they are reproduced.
+- If the team is able to reproduce the issue, it will be marked `needs-fix`, as well as possibly other tags (such as `critical`), and the issue will be left to be implemented by someone.
+
+
+
+### Suggesting Enhancements
+
+This section guides you through submitting an enhancement suggestion for CONTRIBUTING.md, **including completely new features and minor improvements to existing functionality**. Following these guidelines will help maintainers and the community to understand your suggestion and find related suggestions.
+
+
+#### Before Submitting an Enhancement
+
+- Make sure that you are using the latest version.
+- Read the [documentation](https://smarty-php.github.io/smarty) carefully and find out if the functionality is already covered, maybe by an individual configuration.
+- Perform a [search](https://github.com/smarty-php/smarty/issues) to see if the enhancement has already been suggested. If it has, add a comment to the existing issue instead of opening a new one.
+- Find out whether your idea fits with the scope and aims of the project. It's up to you to make a strong case to convince the project's developers of the merits of this feature. Keep in mind that we want features that will be useful to the majority of our users and not just a small subset. If you're just targeting a minority of users, consider writing an add-on/plugin library.
+
+
+#### How Do I Submit a Good Enhancement Suggestion?
+
+Enhancement suggestions are tracked as [GitHub issues](https://github.com/smarty-php/smarty/issues).
+
+- Use a **clear and descriptive title** for the issue to identify the suggestion.
+- Provide a **step-by-step description of the suggested enhancement** in as many details as possible.
+- **Describe the current behavior** and **explain which behavior you expected to see instead** and why. At this point you can also tell which alternatives do not work for you.
+- You may want to **include screenshots and animated GIFs** which help you demonstrate the steps or point out the part which the suggestion is related to. You can use [this tool](https://www.cockos.com/licecap/) to record GIFs on macOS and Windows, and [this tool](https://github.com/colinkeenan/silentcast) or [this tool](https://github.com/GNOME/byzanz) on Linux.
+- **Explain why this enhancement would be useful** to most CONTRIBUTING.md users. You may also want to point out the other projects that solved it better and which could serve as inspiration.
+
+
+### Improving The Documentation
+
+The [docs](docs/index.md) are written in markdown, configured in [mkdocs.yml](mkdocs.yml) and published 
+to [GitHub pages](https://smarty-php.github.io/smarty) using [mkdocs](https://www.mkdocs.org/) and [mike](https://github.com/jimporter/mike).
+
+You need Python to build the docs. Install the required packages first:
+```bash
+pip install -r docs/requirements.txt
+```
+
+To preview the docs while you are writing, run:
+```bash
+mkdocs serve
+```
+This should launch a local web server and give you a link to open in your browser.
+
+When you are finished, commit your changes and provide a [Pull Request](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request).
+
+#### Publishing the docs
+If you are a maintainer, you can publish the document using [mike](https://github.com/jimporter/mike). Make sure you provide the correct version.
+
+```bash
+mike deploy 5.x
+```
+
+Then, push the `gh-pages` branch.
+
+## Attribution
+This guide is based on the **contributing.md**. [Make your own](https://contributing.md/)!

INHERITANCE_RELEASE_NOTES.txt

@@ -1,91 +0,0 @@
-3.1.3"
-New tags for inheritance parent and chilD
-{parent}  == {$smarty.block.parent}
-{child}  == {$smarty.block.child}
-Both tags support the assign attribute like
-{child assign=foo}
-
-3.1.31
-New tags for inheritance parent and child
-{block_parent}  == {$smarty.block.parent}
-{block_child}  == {$smarty.block.child}
-
-Since 3.1.28 you can mix inheritance by extends resource with the {extends} tag.
-A template called by extends resource can extend a subtemplate or chain buy the {extends} tag.
-Since 3.1.31 this feature can be turned off by setting the new Smarty property Smarty::$extends_recursion to false.
-
-3.1.28
-Starting with version 3.1.28 template inheritance is no longer a compile time process.
-All {block} tag parent/child relations are resolved at run time.
-This does resolve all known existing restrictions (see below).
-
-The $smarty::$inheritance_merge_compiled_includes property has been removed.
-Any access to it is ignored.
-
-New features:
-
-Any code outside root {block} tags in child templates is now executed but any output will be ignored.
-
-   {extends 'foo.tpl'}
-   {$bar = 'on'}           // assigns variable $bar seen in parent templates
-   {block 'buh'}{/block}
-
-   {extends 'foo.tpl'}
-   {$bar}           // the output of variable bar is ignored
-   {block 'buh'}{/block}
-
-{block} tags can be dynamically en/disabled by conditions.
-
-   {block 'root'}
-      {if $foo}
-         {block 'v1'}
-             ....
-         {/block}
-      {else}
-         {block 'v1'}
-             ....
-         {/block}
-      {/if}
-   {/block}
-
-{block} tags can have variable names.
-
-   {block $foo}
-        ....
-   {/block}
-
-Starting with 3.1.28 you can mix inheritance by extends resource with the {extends} tag.
-A template called by extends resource can extend a subtemplate or chain buy the {extends} tag.
-
-NOTE There is a BC break. If you used the extends resource {extends} tags have been ignored.
-
-THE FOLLOWING RESTRICTIONS ARE NO LONGER EXISTING:
-In Smarty 3.1 template inheritance is a compile time process. All the extending of {block} tags
-is done at compile time and the parent and child templates are compiled in a single compiled template.
-{include} subtemplate could also {block} tags. Such subtemplate could not compiled by it's own because
-it could be used in other context where the {block} extended with a different result. For that reasion
-the compiled code of {include} subtemplates gets also merged in compiled inheritance template.
-
-Merging the code into a single compile template has some drawbacks.
-1. You could not use variable file names in {include} Smarty would use the {include} of compilation time.
-2. You could not use individual compile_id in {include}
-3. Separate caching of subtemplate was not possible
-4. Any change of the template directory structure between calls was not necessarily seen.
-
-Starting with 3.1.15 some of the above conditions got checked and resulted in an exception. It turned out
-that a couple of users did use some of above and now got exceptions.
-
-To resolve this starting with 3.1.16 there is a new configuration parameter $inheritance_merge_compiled_includes.
-For most backward compatibility its default setting is true.
-With this setting all {include} subtemplate will be merge into the compiled inheritance template, but the above cases
-could be rejected by exception.
-
-
-If $smarty->inheritance_merge_compiled_includes = false; {include} subtemplate will not be merged.You must now manually merge all {include} subtemplate which do contain {block} tags. This is done by setting the "inline" option.
-{include file='foo.bar' inline}
-
-1. In case of a variable file name like {include file=$foo inline} you must use the variable in a compile_id  $smarty->compile_id = $foo;
-2. If you use individual compile_id in {include file='foo.tpl' compile_id=$bar inline} it must be used in the   global compile_id as well  $smarty->compile_id = $bar;
-3. If call templates with different template_dir configurations and a parent could same named child template from different folders
-   you must make the folder name part of the compile_id.
-

Makefile

@@ -0,0 +1,19 @@
+all: lexers parsers
+
+lexers: src/Lexer/ConfigfileLexer.php src/Lexer/TemplateLexer.php
+parsers: src/Parser/ConfigfileParser.php src/Parser/TemplateParser.php
+
+src/Lexer/ConfigfileLexer.php: src/Lexer/ConfigfileLexer.plex
+	php ./utilities/make-lexer.php src/Lexer/ConfigfileLexer.plex src/Lexer/ConfigfileLexer.php
+
+src/Lexer/TemplateLexer.php: src/Lexer/TemplateLexer.plex
+	php ./utilities/make-lexer.php src/Lexer/TemplateLexer.plex src/Lexer/TemplateLexer.php
+
+src/Parser/ConfigfileParser.php: src/Parser/ConfigfileParser.y
+	php ./utilities/make-parser.php src/Parser/ConfigfileParser.y src/Parser/ConfigfileParser.php
+
+src/Parser/TemplateParser.php: src/Parser/TemplateParser.y
+	php ./utilities/make-parser.php src/Parser/TemplateParser.y src/Parser/TemplateParser.php
+
+clean:
+	rm -f src/Lexer/ConfigfileLexer.php src/Lexer/TemplateLexer.php src/Parser/ConfigfileParser.php src/Parser/TemplateParser.php

NEW_FEATURES.txt

@@ -1,291 +0,0 @@
-
-
-This file contains a brief description of new features which have been added to Smarty 3.1
-
-Smarty 3.1.33-dev
-    Variable capture name in Smarty special variable
-    ================================================
-    {$smarty.capture.$foo} can now be used to access the content of a named
-     capture block
-
-Smarty 3.1.32
-    New tags for inheritance parent and child
-    =========================================
-    {parent}  == {$smarty.block.parent}
-    {child}  == {$smarty.block.child}
-    Both tags support the assign attribute like
-    {child assign=foo}
-
-    Deprecate functions Smarty::muteExpectedErrors() and Smarty::unmuteExpectedErrors()
-    ===================================================================================
-    These functions to start a special error handler are no longer needed as Smarty does
-    no longer use error suppression like @filemtime().
-    For backward compatibility the functions still can be called.
-
-    Using literals containing Smarty's left and right delimiter
-    ===========================================================
-    New Methods
-        $smarty->setLiterals(array $literals)
-        $smarty->addLiterals(array $literals)
-    to define literals  containing Smarty delimiter. This can avoid the need for extreme usage
-    of {literal} {/literal} tags.
-    A) Treat '{{' and '}}' as literal
-    If Smarty::$auto_literal is enabled
-        {{ foo }}
-    will be treated now as literal. (This does apply for any number of delimiter repeatations).
-    However {{foo}} is not an literal but will be interpreted as a recursive Smarty tag.
-    If you use
-         $smarty->setLiterals(array('{{','}}'));
-         {{foo}}  is now a literal as well.
-    NOTE: In the last example nested Smarty tags starting with '{{' or ending with '}}' will not
-    work any longer, but this should be very very raw occouring restriction.
-    B) Example 2
-    Assume your delimiter are '<-' , '->' and '<--' , '-->' shall be literals 
-          $smarty->setLiterals(array('<--','-->'));
-
-
-    The capture buffers can now be accessed as array
-    ================================================
-    {capture name='foo'}
-        bah
-     {\capture}
-     {capture name='buh'}
-       blar
-     {\capture}
-     {foreach $smarty.capture as $name => $buffer}
-        ....
-      {/foreach}
-
-Smarty 3.1.31
-    New tags for inheritance parent and child
-    =========================================
-    {block_parent}  == {$smarty.block.parent}
-    {block_child}  == {$smarty.block.child}
-
-Smarty 3.1.30
-
-    Loop optimization {foreach} and {section}
-    =========================================
-    Smarty does optimize the {foreach} and {section} loops by removing code for not needed loop
-    properties.
-    The compiler collects needed properties by scanning the current template for $item@property,
-    $smarty.foreach.name.property and $smarty.section.name.property.
-    The compiler does not know if additional properties will be needed outside the current template scope.
-    Additional properties can be generated by adding them with the property attribute.
-
-    Example:
-        index.tpl
-        {foreach $from as $item properties=[iteration, index]}
-            {include 'sub.tpl'}
-            {$item.total}
-        {/foreach}
-
-        sub.tpl
-        {$item.index} {$item.iteration} {$item.total}
-
-    In above example code for the 'total' property is automatically generated as $item.total is used in
-    index.tpl. Code for 'iteration' and 'index' must be added with properties=[iteration, index].
-
-    New tag {make_nocache}
-    ======================
-    Syntax: {make_nocache $foo}
-
-    This tag makes a variable which does exists normally only while rendering the compiled template
-    available in the cached template for use in not cached expressions.
-
-    Expample:
-        {foreach from=$list item=item}
-            <li>{$item.name} {make_nocache $item}{if $current==$item.id} ACTIVE{/if}</li>
-        {/foreach}
-
-    The {foreach} loop is rendered while processing the compiled template, but $current is a nocache
-    variable. Normally the {if $current==$item.id} would fail as the $item variable is unknown in the     cached template. {make_nocache $item} does make the current $item value known in thee cached template.
-
-    {make_nocache} is ignored when caching is disabled or the variable does exists as nocache variable.
-
-    NOTE: if the variable value does contain objects these must have the __set_state method implemented.
-
-
-    Scope Attributes
-    ================
-    The scope handling has been updated to cover all cases of variable assignments in templates.
-
-    The tags {assign}, {append} direct assignments like {$foo = ...}, {$foo[...]= ...} support
-    the following optional scope attributes:
-    scope='parent'    - the variable will be assigned in the current template and if the template
-                        was included by {include} the calling template
-    scope='tpl_root'  - the variable will be assigned in the outermost root template called by $smarty->display()
-                        or $smarty->fetch() and is bubbled up all {include} sub-templates to the current template.
-    scope='smarty'    - the variable will be assigned in the Smarty object and is bubbled up all {include} sub-templates
-                        to the current template.
-    scope='global'    - the variable will be assigned as Smarty object global variable and is bubbled up all {include}
-                        sub-templates to the current template.
-    scope='root'      - the variable will be assigned if a data object was used for variable definitions in the data
-                        object or in the Smarty object otherwise and is bubbled up all {include} sub-templates to the
-                        current template.
-    scope='local'     - this scope has only a meaning if the tag is called within a template {function}.
-                        The variable will be assigned in the local scope of the template function and the
-                        template which did call the template function.
-
-
-    The {config_load} tag supports all of the above except the global scope.
-
-    The scope attribute can be used also with the {include} tag.
-    Supported scope are parent, tpl_root, smarty, global and root.
-    A scope used together with the {include} tag will cause that with some exceptions any variable
-    assignment within that sub-template will update/assign the variable in other scopes according
-    to the above rules. It does include also variables assigned by plugins, tags supporting the assign=foo     attribute and direct assignments in {if} and {while} like {if $foo=$bar}.
-    Excluded are the key and value variables of {foreach}, {for} loop variables , variables passed by attributes
-    in {include} and direct increments/decrements like {$foo++}, {$foo--}
-
-    Note: The scopes should be used only to the extend really need. If a variable value assigned in an included
-          sub-template should be returned to the calling sub-template just use {$foo='bar' scope='parent'}.
-          Use scopes only with variables for which it's realy needed. Avoid general scope settings with the
-          {include} tag as it can have a performance impact.
-
-     The {assign}, {append}, {config_load} and {$foo...=...} tags have a new option flag 'noscope'.Thi
-     Example: {$foo='bar' noscope}  This will assign $foo only in the current template and any scope settings
-               at {include} is ignored.
-
-
-    Caching
-    =======
-    Caching does now observe the template_dir setting and will create separate cache files if required
-
-    Compiled Templates
-    ==================
-    The template_dir setting is now encoded in the uid of the file name.
-    The content of the compiled template may depend on the template_dir search order
-    {include .... inline} is used or $smarty->merge_compiled_includes is enabled
-
-    APC
-    ===
-    If APC is enabled force an apc_compile_file() when compiled or cached template was updated
-
-Smarty 3.1.28
-
-    OPCACHE
-    =======
-    Smarty does now invalidate automatically updated and cleared compiled or cached template files in OPCACHE.
-    Correct operation is no longer dependent on OPCACHE configuration settings.
-
-    Template inheritance
-    ====================
-    Template inheritance is now processed in run time.
-    See the INHERITANCE_RELEASE_NOTES
-
-    Modifier regex_replace
-    ======================
-    An optional limit parameter was added
-
-    fetch() and display()
-    =====================
-    The fetch() and display() methods of the template object accept now optionally the same parameter
-    as the corresponding Smarty methods to get the content of another template.
-    Example:
-        $template->display();           Does display template of template object
-        $template->display('foo.tpl');  Does display template 'foo.bar'     
-        
-    File: resource
-    ==============
-    Multiple template_dir entries can now be selected  by a comma separated list of indices.
-    The template_dir array is searched in the order of the indices. (Could be used to change the default search order)
-    Example:
-        $smarty->display('[1],[0]foo.bar');
-
-    Filter support
-    ==============
-    Optional filter names
-      An optional filter name was added to $smarty->registerFilter(). It can be used to unregister a filter by name.
-      - $smarty->registerFilter('output', $callback, 'name');
-        $smarty->unregister('output', 'name');
-
-    Closures
-      $smarty->registerFilter() does now accept closures.
-      - $smarty->registerFilter('pre', function($source) {return $source;});
-      If no optional filter name was specified it gets the default name 'closure'.
-      If you register multiple closures register each with a unique filter name.
-      - $smarty->registerFilter('pre', function($source) {return $source;}, 'closure_1');
-      - $smarty->registerFilter('pre', function($source) {return $source;}, 'closure_2');
-
-
-Smarty 3.1.22
-
-    Namespace support within templates
-    ==================================
-    Within templates you can now use namespace specifications on:
-     - Constants                like    foo\bar\FOO
-     - Class names              like    foo\bar\Baz::FOO, foo\bar\Baz::$foo, foo\bar\Baz::foo()
-     - PHP function names       like    foo\bar\baz()
-
-    Security
-    ========
-    - disable special $smarty variable -
-    The Smarty_Security class has the new property $disabled_special_smarty_vars.
-    It's an array which can be loaded with the $smarty special variable names like
-    'template_object', 'template', 'current_dir' and others which will be disabled.
-    Note: That this security check is performed at compile time.
-
-    - limit template nesting -
-    Property $max_template_nesting of Smarty_Security does set the maximum template nesting level.
-    The main template is level 1. The nesting level is checked at run time. When the maximum will be exceeded
-    an Exception will be thrown. The default setting is 0 which does disable this check.
-
-    - trusted static methods -
-   The Smarty_Security class has the new property $trusted_static_methods to restrict access to static methods.
-   It's an nested array of trusted class and method names.
-         Format:
-         array (
-                    'class_1' => array('method_1', 'method_2'), // allowed methods
-                    'class_2' => array(),                       // all methods of class allowed
-               )
-   To disable access for all methods of all classes set $trusted_static_methods = null;
-   The default value is an empty array() which does enables all methods of all classes, but for backward compatibility
-   the setting of $static_classes will be checked.
-   Note: That this security check is performed at compile time.
-
-    - trusted static properties -
-   The Smarty_Security class has the new property $trusted_static_properties to restrict access to static properties.
-   It's an nested array of trusted class and property names.
-         Format:
-         array (
-                    'class_1' => array('prop_1', 'prop_2'), // allowed properties listed
-                    'class_2' => array(),                   // all properties of class allowed
-                }
-   To disable access for all properties of all classes set $trusted_static_properties = null;
-   The default value is an empty array() which does enables all properties of all classes, but for backward compatibility
-   the setting of $static_classes will be checked.
-   Note: That this security check is performed at compile time.
-
-    - trusted constants .
-   The Smarty_Security class has the new property $trusted_constants to restrict access to constants.
-   It's an array of trusted constant names.
-         Format:
-         array (
-                    'SMARTY_DIR' , // allowed constant
-                }
-   If the array is empty (default) the usage of constants  can be controlled with the
-   Smarty_Security::$allow_constants property (default true)
-
-
-
-    Compiled Templates
-    ==================
-    Smarty does now automatically detects a change of the $merge_compiled_includes and $escape_html
-    property and creates different compiled templates files depending on the setting.
-
-    Same applies to config files and the $config_overwrite, $config_booleanize and
-    $config_read_hidden properties.
-
-    Debugging
-    =========
-    The layout of the debug window has been changed for better readability
-
-    New class constants
-        Smarty::DEBUG_OFF
-        Smarty::DEBUG_ON
-        Smarty::DEBUG_INDIVIDUAL
-    have been introduced for setting the $debugging property.
-
-    Smarty::DEBUG_INDIVIDUAL will create for each display() and fetch() call an individual debug window.
-

README

@@ -1,575 +0,0 @@
-Smarty 3.x
-
-Author: Monte Ohrt <monte at ohrt dot com >
-Author: Uwe Tews
-
-AN INTRODUCTION TO SMARTY 3
-
-NOTICE FOR 3.1 release:
-
-Please see the SMARTY_3.1_NOTES.txt file that comes with the distribution.
-
-NOTICE for 3.0.5 release:
-
-Smarty now follows the PHP error_reporting level by default. If PHP does not mask E_NOTICE and you try to access an unset template variable, you will now get an E_NOTICE warning. To revert to the old behavior:
-
-$smarty->error_reporting = E_ALL & ~E_NOTICE;
-
-NOTICE for 3.0 release:
-
-IMPORTANT: Some API adjustments have been made between the RC4 and 3.0 release.
-We felt it is better to make these now instead of after a 3.0 release, then have to
-immediately deprecate APIs in 3.1. Online documentation has been updated
-to reflect these changes. Specifically:
-
----- API CHANGES RC4 -> 3.0 ----
-
-$smarty->register->*
-$smarty->unregister->*
-$smarty->utility->*
-$samrty->cache->*
-
-Have all been changed to local method calls such as:
-
-$smarty->clearAllCache()
-$smarty->registerFoo()
-$smarty->unregisterFoo()
-$smarty->testInstall()
-etc.
-
-Registration of function, block, compiler, and modifier plugins have been
-consolidated under two API calls:
-
-$smarty->registerPlugin(...)
-$smarty->unregisterPlugin(...)
-
-Registration of pre, post, output and variable filters have been
-consolidated under two API calls:
-
-$smarty->registerFilter(...)
-$smarty->unregisterFilter(...)
-
-Please refer to the online documentation for all specific changes:
-
-http://www.smarty.net/documentation
-
-----
-
-The Smarty 3 API has been refactored to a syntax geared
-for consistency and modularity. The Smarty 2 API syntax is still supported, but
-will throw a deprecation notice. You can disable the notices, but it is highly
-recommended to adjust your syntax to Smarty 3, as the Smarty 2 syntax must run
-through an extra rerouting wrapper.
-
-Basically, all Smarty methods now follow the "fooBarBaz" camel case syntax. Also,
-all Smarty properties now have getters and setters. So for example, the property
-$smarty->cache_dir can be set with $smarty->setCacheDir('foo/') and can be
-retrieved with $smarty->getCacheDir().
-
-Some of the Smarty 3 APIs have been revoked such as the "is*" methods that were
-just duplicate functions of the now available "get*" methods.
-
-Here is a rundown of the Smarty 3 API:
-
-$smarty->fetch($template, $cache_id = null, $compile_id = null, $parent = null)
-$smarty->display($template, $cache_id = null, $compile_id = null, $parent = null)
-$smarty->isCached($template, $cache_id = null, $compile_id = null)
-$smarty->createData($parent = null)
-$smarty->createTemplate($template, $cache_id = null, $compile_id = null, $parent = null)
-$smarty->enableSecurity()
-$smarty->disableSecurity()
-$smarty->setTemplateDir($template_dir)
-$smarty->addTemplateDir($template_dir)
-$smarty->templateExists($resource_name)
-$smarty->loadPlugin($plugin_name, $check = true)
-$smarty->loadFilter($type, $name)
-$smarty->setExceptionHandler($handler)
-$smarty->addPluginsDir($plugins_dir)
-$smarty->getGlobal($varname = null)
-$smarty->getRegisteredObject($name)
-$smarty->getDebugTemplate()
-$smarty->setDebugTemplate($tpl_name)
-$smarty->assign($tpl_var, $value = null, $nocache = false)
-$smarty->assignGlobal($varname, $value = null, $nocache = false)
-$smarty->assignByRef($tpl_var, &$value, $nocache = false)
-$smarty->append($tpl_var, $value = null, $merge = false, $nocache = false)
-$smarty->appendByRef($tpl_var, &$value, $merge = false)
-$smarty->clearAssign($tpl_var)
-$smarty->clearAllAssign()
-$smarty->configLoad($config_file, $sections = null)
-$smarty->getVariable($variable, $_ptr = null, $search_parents = true, $error_enable = true)
-$smarty->getConfigVariable($variable)
-$smarty->getStreamVariable($variable)
-$smarty->getConfigVars($varname = null)
-$smarty->clearConfig($varname = null)
-$smarty->getTemplateVars($varname = null, $_ptr = null, $search_parents = true)
-$smarty->clearAllCache($exp_time = null, $type = null)
-$smarty->clearCache($template_name, $cache_id = null, $compile_id = null, $exp_time = null, $type = null)
-
-$smarty->registerPlugin($type, $tag, $callback, $cacheable = true, $cache_attr = array())
-
-$smarty->registerObject($object_name, $object_impl, $allowed = array(), $smarty_args = true, $block_methods = array())
-
-$smarty->registerFilter($type, $function_name)
-$smarty->registerResource($resource_type, $function_names)
-$smarty->registerDefaultPluginHandler($function_name)
-$smarty->registerDefaultTemplateHandler($function_name)
-
-$smarty->unregisterPlugin($type, $tag)
-$smarty->unregisterObject($object_name)
-$smarty->unregisterFilter($type, $function_name)
-$smarty->unregisterResource($resource_type)
-
-$smarty->compileAllTemplates($extension = '.tpl', $force_compile = false, $time_limit = 0, $max_errors = null)
-$smarty->clearCompiledTemplate($resource_name = null, $compile_id = null, $exp_time = null)
-$smarty->testInstall()
-
-// then all the getters/setters, available for all properties. Here are a few:
-
-$caching = $smarty->getCaching();      // get $smarty->caching
-$smarty->setCaching(true);             // set $smarty->caching
-$smarty->setDeprecationNotices(false); // set $smarty->deprecation_notices
-$smarty->setCacheId($id);              // set $smarty->cache_id
-$debugging = $smarty->getDebugging();  // get $smarty->debugging
-
-
-FILE STRUCTURE
-
-The Smarty 3 file structure is similar to Smarty 2:
-
-/libs/
-  Smarty.class.php
-/libs/sysplugins/
-  internal.*
-/libs/plugins/
-  function.mailto.php
-  modifier.escape.php
-  ...
-
-A lot of Smarty 3 core functionality lies in the sysplugins directory; you do
-not need to change any files here. The /libs/plugins/ folder is where Smarty
-plugins are located. You can add your own here, or create a separate plugin
-directory, just the same as Smarty 2. You will still need to create your own
-/cache/, /templates/, /templates_c/, /configs/ folders. Be sure /cache/ and
-/templates_c/ are writable.
-
-The typical way to use Smarty 3 should also look familiar:
-
-require('Smarty.class.php');
-$smarty = new Smarty;
-$smarty->assign('foo','bar');
-$smarty->display('index.tpl');
-
-
-However, Smarty 3 works completely different on the inside. Smarty 3 is mostly
-backward compatible with Smarty 2, except for the following items:
-
-*) Smarty 3 is PHP 5 only. It will not work with PHP 4.
-*) The {php} tag is disabled by default. Enable with $smarty->allow_php_tag=true.
-*) Delimiters surrounded by whitespace are no longer treated as Smarty tags.
-   Therefore, { foo } will not compile as a tag, you must use {foo}. This change
-   Makes Javascript/CSS easier to work with, eliminating the need for {literal}.
-   This can be disabled by setting $smarty->auto_literal = false;
-*) The Smarty 3 API is a bit different. Many Smarty 2 API calls are deprecated
-   but still work. You will want to update your calls to Smarty 3 for maximum
-   efficiency.
-
-
-There are many things that are new to Smarty 3. Here are the notable items:
-
-LEXER/PARSER
-============
-
-Smarty 3 now uses a lexing tokenizer for its parser/compiler. Basically, this
-means Smarty has some syntax additions that make life easier such as in-template
-math, shorter/intuitive function parameter options, infinite function recursion,
-more accurate error handling, etc.
-
-
-WHAT IS NEW IN SMARTY TEMPLATE SYNTAX
-=====================================
-
-Smarty 3 allows expressions almost anywhere. Expressions can include PHP
-functions as long as they are not disabled by the security policy, object
-methods and properties, etc. The {math} plugin is no longer necessary but
-is still supported for BC.
-
-Examples:
-{$x+$y}                           will output the sum of x and y.
-{$foo = strlen($bar)}             function in assignment
-{assign var=foo value= $x+$y}     in attributes
-{$foo = myfunct( ($x+$y)*3 )}     as function parameter
-{$foo[$x+3]}                      as array index
-
-Smarty tags can be used as values within other tags.
-Example:  {$foo={counter}+3}
-
-Smarty tags can also be used inside double quoted strings.
-Example:  {$foo="this is message {counter}"}
-
-You can define arrays within templates.
-Examples:
-{assign var=foo value=[1,2,3]}
-{assign var=foo value=['y'=>'yellow','b'=>'blue']}
-Arrays can be nested.
-{assign var=foo value=[1,[9,8],3]}
-
-There is a new short syntax supported for assigning variables.
-Example: {$foo=$bar+2}
-
-You can assign a value to a specific array element. If the variable exists but
-is not an array, it is converted to an array before the new values are assigned.
-Examples:
-{$foo['bar']=1}
-{$foo['bar']['blar']=1}
-
-You can append values to an array. If the variable exists but is not an array,
-it is converted to an array before the new values are assigned.
-Example: {$foo[]=1}
-
-You can use a PHP-like syntax for accessing array elements, as well as the
-original "dot" notation.
-Examples:
-{$foo[1]}             normal access
-{$foo['bar']}
-{$foo['bar'][1]}
-{$foo[$x+$x]}         index may contain any expression
-{$foo[$bar[1]]}       nested index
-{$foo[section_name]}  smarty section access, not array access!
-
-The original "dot" notation stays, and with improvements.
-Examples:
-{$foo.a.b.c}        =>  $foo['a']['b']['c']
-{$foo.a.$b.c}       =>  $foo['a'][$b]['c']        with variable index
-{$foo.a.{$b+4}.c}   =>  $foo['a'][$b+4]['c']       with expression as index
-{$foo.a.{$b.c}}     =>  $foo['a'][$b['c']]         with nested index
-
-note that { and } are used to address ambiguties when nesting the dot syntax.
-
-Variable names themselves can be variable and contain expressions.
-Examples:
-$foo         normal variable
-$foo_{$bar}  variable name containing other variable
-$foo_{$x+$y} variable name containing expressions
-$foo_{$bar}_buh_{$blar}  variable name with multiple segments
-{$foo_{$x}}  will output the variable $foo_1 if $x has a value of 1.
-
-Object method chaining is implemented.
-Example: {$object->method1($x)->method2($y)}
-
-{for} tag added for looping (replacement for {section} tag):
-{for $x=0, $y=count($foo); $x<$y; $x++}  ....  {/for}
-Any number of statements can be used separated by comma as the first
-initial expression at {for}.
-
-{for $x = $start to $end step $step} ... {/for}is in the SVN now .
-You can use also
-{for $x = $start to $end} ... {/for}
-In this case the step value will be automatically 1 or -1 depending on the start and end values.
-Instead of $start and $end you can use any valid expression.
-Inside the loop the following special vars can be accessed:
-$x@iteration = number of iteration
-$x@total = total number of iterations
-$x@first = true on first iteration
-$x@last = true on last iteration
-
-
-The Smarty 2 {section} syntax is still supported.
-
-New shorter {foreach} syntax to loop over an array.
-Example: {foreach $myarray as $var}...{/foreach}
-
-Within the foreach loop, properties are access via:
-
-$var@key            foreach $var array key
-$var@iteration      foreach current iteration count (1,2,3...)
-$var@index          foreach current index count (0,1,2...)
-$var@total          foreach $var array total
-$var@first          true on first iteration
-$var@last           true on last iteration
-
-The Smarty 2 {foreach} tag syntax is still supported.
-
-NOTE: {$bar[foo]} still indicates a variable inside of a {section} named foo.
-If you want to access an array element with index foo, you must use quotes
-such as {$bar['foo']}, or use the dot syntax {$bar.foo}.
-
-while block tag is now implemented:
-{while $foo}...{/while}
-{while $x lt 10}...{/while}
-
-Direct access to PHP functions:
-Just as you can use PHP functions as modifiers directly, you can now access
-PHP functions directly, provided they are permitted by security settings:
-{time()}
-
-There is a new {function}...{/function} block tag to implement a template function.
-This enables reuse of code sequences like a plugin function. It can call itself recursively.
-Template function must be called with the new {call name=foo...} tag.
-
-Example:
-
-Template file:
-{function name=menu level=0}
-  <ul class="level{$level}">
-  {foreach $data as $entry}
-    {if is_array($entry)}
-      <li>{$entry@key}</li>
-       {call name=menu data=$entry level=$level+1}
-    {else}
-      <li>{$entry}</li>
-    {/if}
-  {/foreach}
-  </ul>
-{/function}
-
-{$menu = ['item1','item2','item3' => ['item3-1','item3-2','item3-3' =>
-  ['item3-3-1','item3-3-2']],'item4']}
-
-{call name=menu data=$menu}
-
-
-Generated output:
-    * item1
-    * item2
-    * item3
-          o item3-1
-          o item3-2
-          o item3-3
-                + item3-3-1
-                + item3-3-2
-    * item4
-
-The function tag itself must have the "name" attribute. This name is the tag
-name when calling the function. The function tag may have any number of
-additional attributes. These will be default settings for local variables.
-
-New {nocache} block function:
-{nocache}...{/nocache} will declare a section of the template to be non-cached
-when template caching is enabled.
-
-New nocache attribute:
-You can declare variable/function output as non-cached with the nocache attribute.
-Examples:
-
-{$foo nocache=true}
-{$foo nocache} /* same */
-
-{foo bar="baz" nocache=true}
-{foo bar="baz" nocache} /* same */
-
-{time() nocache=true}
-{time() nocache} /* same */
-
-Or you can also assign the variable in your script as nocache:
-$smarty->assign('foo',$something,true); // third param is nocache setting
-{$foo} /* non-cached */
-
-$smarty.current_dir returns the directory name of the current template.
-
-You can use strings directly as templates with the "string" resource type.
-Examples:
-$smarty->display('string:This is my template, {$foo}!'); // php
-{include file="string:This is my template, {$foo}!"} // template
-
-
-
-VARIABLE SCOPE / VARIABLE STORAGE
-=================================
-
-In Smarty 2, all assigned variables were stored within the Smarty object.
-Therefore, all variables assigned in PHP were accessible by all subsequent
-fetch and display template calls.
-
-In Smarty 3, we have the choice to assign variables to the main Smarty object,
-to user-created data objects, and to user-created template objects.
-These objects can be chained. The object at the end of a chain can access all
-variables belonging to that template and all variables within the parent objects.
-The Smarty object can only be the root of a chain, but a chain can be isolated
-from the Smarty object.
-
-All known Smarty assignment interfaces will work on the data and template objects.
-
-Besides the above mentioned objects, there is also a special storage area for
-global variables.
-
-A Smarty data object can be created as follows:
-$data = $smarty->createData();    // create root data object
-$data->assign('foo','bar');       // assign variables as usual
-$data->config_load('my.conf');									 // load config file
-
-$data= $smarty->createData($smarty);  // create data object having a parent link to
-the Smarty object
-
-$data2= $smarty->createData($data);   // create data object having a parent link to
-the $data data object
-
-A template object can be created by using the createTemplate method. It has the
-same parameter assignments as the fetch() or display() method.
-Function definition:
-function createTemplate($template, $cache_id = null, $compile_id = null, $parent = null)
-
-The first parameter can be a template name, a smarty object or a data object.
-
-Examples:
-$tpl = $smarty->createTemplate('mytpl.tpl'); // create template object not linked to any parent
-$tpl->assign('foo','bar');                   // directly assign variables
-$tpl->config_load('my.conf');									 // load config file
-
-$tpl = $smarty->createTemplate('mytpl.tpl',$smarty);  // create template having a parent link to the Smarty object
-$tpl = $smarty->createTemplate('mytpl.tpl',$data);    // create template having a parent link to the $data object
-
-The standard fetch() and display() methods will implicitly create a template object.
-If the $parent parameter is not specified in these method calls, the template object
-is will link back to the Smarty object as it's parent.
-
-If a template is called by an {include...} tag from another template, the
-subtemplate links back to the calling template as it's parent.
-
-All variables assigned locally or from a parent template are accessible. If the
-template creates or modifies a variable by using the {assign var=foo...} or
-{$foo=...} tags, these new values are only known locally (local scope). When the
-template exits, none of the new variables or modifications can be seen in the
-parent template(s). This is same behavior as in Smarty 2.
-
-With Smarty 3, we can assign variables with a scope attribute which allows the
-availablility of these new variables or modifications globally (ie in the parent
-templates.)
-
-Possible scopes are local, parent, root and global.
-Examples:
-{assign var=foo value='bar'}       // no scope is specified, the default 'local'
-{$foo='bar'}                       // same, local scope
-{assign var=foo value='bar' scope='local'} // same, local scope
-
-{assign var=foo value='bar' scope='parent'} // Values will be available to the parent object
-{$foo='bar' scope='parent'}                 // (normally the calling template)
-
-{assign var=foo value='bar' scope='root'}   // Values will be exported up to the root object, so they can
-{$foo='bar' scope='root'}                   // be seen from all templates using the same root.
-
-{assign var=foo value='bar' scope='global'} // Values will be exported to global variable storage,
-{$foo='bar' scope='global'}                 // they are available to any and all templates.
-
-
-The scope attribute can also be attached to the {include...} tag. In this case,
-the specified scope will be the default scope for all assignments within the
-included template.
-
-
-PLUGINS
-=======
-
-Smarty 3 plugins follow the same coding rules as in Smarty 2.
-The main difference is that the template object is now passed in place of the smarty object.
-The smarty object can be still be accessed through $template->smarty.
-
-smarty_plugintype_name (array $params, Smarty_Internal_Template $template)
-
-The Smarty 2 plugins are still compatible as long as they do not make use of specific Smarty 2 internals.
-
-
-TEMPLATE INHERITANCE:
-=====================
-
-With template inheritance you can define blocks, which are areas that can be
-overridden by child templates, so your templates could look like this:
-
-parent.tpl:
-<html>
-  <head>
-    <title>{block name='title'}My site name{/block}</title>
-  </head>
-  <body>
-    <h1>{block name='page-title'}Default page title{/block}</h1>
-    <div id="content">
-      {block name='content'}
-        Default content
-      {/block}
-    </div>
-  </body>
-</html>
-
-child.tpl:
-{extends file='parent.tpl'}
-{block name='title'}
-Child title
-{/block}
-
-grandchild.tpl:
-{extends file='child.tpl'}
-{block name='title'}Home - {$smarty.block.parent}{/block}
-{block name='page-title'}My home{/block}
-{block name='content'}
-  {foreach $images as $img}
-    <img src="{$img.url}" alt="{$img.description}" />
-  {/foreach}
-{/block}
-
-We redefined all the blocks here, however in the title block we used {$smarty.block.parent},
-which tells Smarty to insert the default content from the parent template in its place.
-The content block was overridden to display the image files, and page-title has also be
-overridden to display a completely different title.
-
-If we render grandchild.tpl we will get this:
-<html>
-  <head>
-    <title>Home - Child title</title>
-  </head>
-  <body>
-    <h1>My home</h1>
-    <div id="content">
-      <img src="/example.jpg" alt="image" />
-      <img src="/example2.jpg" alt="image" />
-      <img src="/example3.jpg" alt="image" />
-    </div>
-  </body>
-</html>
-
-NOTE: In the child templates everything outside the {extends} or {block} tag sections
-is ignored.
-
-The inheritance tree can be as big as you want (meaning you can extend a file that
-extends another one that extends another one and so on..), but be aware that all files
-have to be checked for modifications at runtime so the more inheritance the more overhead you add.
-
-Instead of defining the parent/child relationships with the {extends} tag in the child template you
-can use the resource as follow:
-
-$smarty->display('extends:parent.tpl|child.tpl|grandchild.tpl');
-
-Child {block} tags may optionally have a append or prepend attribute. In this case the parent block content
-is appended or prepended to the child block content.
-
-{block name='title' append} My title {/block}
-
-
-PHP STREAMS:
-============
-
-(see online documentation)
-
-VARIBLE FILTERS:
-================
-
-(see online documentation)
-
-
-STATIC CLASS ACCESS AND NAMESPACE SUPPORT
-=========================================
-
-You can register a class with optional namespace for the use in the template like:
-
-$smarty->register->templateClass('foo','name\name2\myclass');
-
-In the template you can use it like this:
-{foo::method()}  etc.
-
-
-=======================
-
-Please look through it and send any questions/suggestions/etc to the forums.
-
-http://www.phpinsider.com/smarty-forum/viewtopic.php?t=14168
-
-Monte and Uwe

README.md

@@ -1,78 +1,28 @@
-# Smarty 3 template engine
-[smarty.net](https://www.smarty.net/) 
+# Smarty template engine
+Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. 
 
-[![Build Status](https://travis-ci.org/smarty-php/smarty.svg?branch=master)](https://travis-ci.org/smarty-php/smarty)
+![CI](https://github.com/smarty-php/smarty/workflows/CI/badge.svg)
 
 ## Documentation
-
-For documentation see 
-[www.smarty.net/docs/en/](https://www.smarty.net/docs/en/) 
+Read the [documentation](https://smarty-php.github.io/smarty/) to find out how to use it. 
 
 ## Requirements
+Smarty v5 can be run with PHP 7.2 to PHP 8.5.
 
-Smarty can be run with PHP 5.2 to PHP 7.4.
+## Installation
+Smarty versions 3.1.11 or later can be installed with [Composer](https://getcomposer.org/).
 
-## Distribution repository
+To get the latest stable version of Smarty use:
+```bash
+composer require smarty/smarty
+````
 
-> Smarty 3.1.28 introduces run time template inheritance
+More in the [Getting Started](./docs/getting-started.md) section of the docs.
 
-> Read the NEW_FEATURES and INHERITANCE_RELEASE_NOTES file for recent extensions to Smarty 3.1 functionality
+## Sponsors
 
-Smarty versions 3.1.11 or later are now on github and can be installed with Composer.
+Smarty is sponsored by:
+- Marc Laporte [@marclaporte](https://github.com/marclaporte)
+- [Temma](https://github.com/Digicreon/Temma), the MVC framework based on Smarty
 
-
-The "smarty/smarty" package will start at libs/....   subfolder.
-
-To get the latest stable version of Smarty 3.1 use:
-
-```json
-"require": {
-    "smarty/smarty": "~3.1"
-}
-```
-
-in your composer.json file.
-
-To get the trunk version use:
-
-```json
-"require": {
-    "smarty/smarty": "~3.1@dev"
-}
-```
-
-For a specific version use something like:
-
-```json
-"require": {
-    "smarty/smarty": "3.1.19"
-}
-```
-
-PHPUnit test can be installed by corresponding composer entries like:
-
-```json
-"require": {
-    "smarty/smarty-phpunit": "3.1.19"
-}
-```
-
-Similar applies for the lexer/parser generator.
-
-```json
-"require": {
-    "smarty/smarty-lexer": "3.1.19"
-}
-```
-
-Or you could use:
-
-```json
-"require": {
-    "smarty/smarty-dev": "3.1.19"
-}
-```
-
-Which is a wrapper to install all 3 packages.
-
-Composer can also be used for Smarty2 versions 2.6.24 to 2.6.30.
+Thank you!

SECURITY.md

@@ -0,0 +1,20 @@
+# Security Policy
+
+## Supported Versions
+
+Smarty currently supports the latest minor version of Smarty 4 and Smarty 5.
+
+| Version | Supported          |
+|---------|--------------------|
+| 5.0.x   | :white_check_mark: |
+| 4.3.x   | :white_check_mark: |
+| < 4.3   | :x:                |
+
+## Reporting a Vulnerability
+
+If you have discovered a security issue with Smarty, please contact us at mail [at] simonwisselink.nl. Do not 
+disclose your findings publicly and **PLEASE** do not file an Issue (because that would disclose your findings 
+publicly.)
+ 
+We will try to confirm the vulnerability and develop a fix if appropriate. When we release the fix, we will publish 
+a security release. Please let us know if you want to be credited.

SMARTY_2_BC_NOTES.txt

@@ -1,109 +0,0 @@
-= Known incompatibilities with Smarty 2 =
-
-== Syntax ==
-
-Smarty 3 API has a new syntax. Much of the Smarty 2 syntax is supported
-by a wrapper but deprecated. See the README that comes with Smarty 3 for more
-information.
-
-The {$array|@mod} syntax has always been a bit confusing, where an "@" is required
-to apply a modifier to an array instead of the individual elements. Normally you
-always want the modifier to apply to the variable regardless of its type. In Smarty 3,
-{$array|mod} and {$array|@mod} behave identical. It is safe to drop the "@" and the
-modifier will still apply to the array. If you really want the modifier to apply to
-each array element, you must loop the array in-template, or use a custom modifier that
-supports array iteration. Most smarty functions already escape values where necessary
-such as {html_options}
-
-== PHP Version ==
-Smarty 3 is PHP 5 only. It will not work with PHP 4.
-
-== {php} Tag ==
-The {php} tag is disabled by default. The use of {php} tags is
-deprecated. It can be enabled with $smarty->allow_php_tag=true.
-
-But if you scatter PHP code which belongs together into several
-{php} tags it may not work any longer.
-
-== Delimiters and whitespace ==
-Delimiters surrounded by whitespace are no longer treated as Smarty tags.
-Therefore, { foo } will not compile as a tag, you must use {foo}. This change
-Makes Javascript/CSS easier to work with, eliminating the need for {literal}.
-This can be disabled by setting $smarty->auto_literal = false;
-
-== Unquoted Strings ==
-Smarty 2 was a bit more forgiving (and ambiguous) when it comes to unquoted strings
-in parameters. Smarty3 is more restrictive. You can still pass strings without quotes
-so long as they contain no special characters. (anything outside of A-Za-z0-9_)
-
-For example filename strings must be quoted
-<source lang="smarty">
-{include file='path/foo.tpl'}
-</source>
-
-== Extending the Smarty class ==
-Smarty 3 makes use of the __construct method for initialization. If you are extending
-the Smarty class, its constructor is not called implicitly if the your child class defines
-its own constructor. In order to run Smarty's constructor, a call to parent::__construct()
-within your child constructor is required.
-
-<source lang="php">
-class MySmarty extends Smarty {
-   function __construct() {
-       parent::__construct();
-
-       // your initialization code goes here
-
-   }
-}
-</source>
-
-== Autoloader ==
-Smarty 3 does register its own autoloader with spl_autoload_register. If your code has
-an existing __autoload function then this function must be explicitly registered on
-the __autoload stack. See http://us3.php.net/manual/en/function.spl-autoload-register.php
-for further details.
-
-== Plugin Filenames ==
-Smarty 3 optionally supports the PHP spl_autoloader. The autoloader requires filenames
-to be lower case. Because of this, Smarty plugin file names must also be lowercase.
-In Smarty 2, mixed case file names did work.
-
-== Scope of Special Smarty Variables ==
-In Smarty 2 the special Smarty variables $smarty.section... and $smarty.foreach...
-had global scope. If you had loops with the same name in subtemplates you could accidentally
-overwrite values of parent template.
-
-In Smarty 3 these special Smarty variable have only local scope in the template which
-is defining the loop. If you need their value in a subtemplate you have to pass them
-as parameter.
-<source lang="smarty">
-{include file='path/foo.tpl' index=$smarty.section.foo.index}
-</source>
-
-== SMARTY_RESOURCE_CHAR_SET ==
-Smarty 3 sets the constant SMARTY_RESOURCE_CHAR_SET to utf-8 as default template charset.
-This is now used also on modifiers like escape as default charset. If your templates use
-other charsets make sure that you define the constant accordingly. Otherwise you may not
-get any output.
-
-== newline at {if} tags ==
-A \n was added to the compiled code of the {if},{else},{elseif},{/if} tags to get output of newlines as expected by the template source.
-If one of the {if} tags is at the line end you will now get a newline in the HTML output.
-
-== trigger_error() ==
-The API function trigger_error() has been removed because it did just map to PHP trigger_error.
-However it's still included in the Smarty2 API wrapper.
-
-== Smarty constants ==
-The constants
-SMARTY_PHP_PASSTHRU
-SMARTY_PHP_QUOTE
-SMARTY_PHP_REMOVE
-SMARTY_PHP_ALLOW
-have been replaced with class constants
-Smarty::PHP_PASSTHRU
-Smarty::PHP_QUOTE
-Smarty::PHP_REMOVE
-Smarty::PHP_ALLOW
-

SMARTY_3.0_BC_NOTES.txt

@@ -1,24 +0,0 @@
-== Smarty2 backward compatibility ==
-All Smarty2 specific API functions and deprecated functionality has been moved
-to the SmartyBC class.
-
-== {php} Tag ==
-The {php} tag is no longer available in the standard Smarty calls.
-The use of {php} tags is deprecated and only available in the SmartyBC class.
-
-== {include_php} Tag ==
-The {include_php} tag is no longer available in the standard Smarty calls.
-The use of {include_php} tags is deprecated and only available in the SmartyBC class.
-
-== php template resource ==
-The support of the php template resource is removed.
-
-== $cache_dir, $compile_dir, $config_dir, $template_dir access ==
-The mentioned properties can't be accessed directly any longer. You must use
-corresponding getter/setters like addConfigDir(), setConfigDir(), getConfigDir()
-
-== obsolete Smarty class properties ==
-The following no longer used properties are removed:
-$allow_php_tag
-$allow_php_template
-$deprecation_notices

SMARTY_3.1_NOTES.txt

@@ -1,306 +0,0 @@
-Smarty 3.1 Notes
-================
-
-Smarty 3.1 is a departure from 2.0 compatibility. Most notably, all
-backward compatibility has been moved to a separate class file named
-SmartyBC.class.php. If you require compatibility with 2.0, you will
-need to use this class.
-
-Some differences from 3.0 are also present. 3.1 begins the journey of
-requiring setters/getters for property access. So far this is only
-implemented on the five directory properties: template_dir,
-plugins_dir, configs_dir, compile_dir and cache_dir. These properties
-are now protected, it is required to use the setters/getters instead.
-That said, direct property access will still work, however slightly
-slower since they will now fall through __set() and __get() and in
-turn passed through the setter/getter methods. 3.2 will exhibit a full
-list of setter/getter methods for all (currently) public properties,
-so code-completion in your IDE will work as expected.
-
-There is absolutely no PHP allowed in templates any more. All
-deprecated features of Smarty 2.0 are gone. Again, use the SmartyBC
-class if you need any backward compatibility.
-
-Internal Changes
-
-  Full UTF-8 Compatibility
-
-The plugins shipped with Smarty 3.1 have been rewritten to fully
-support UTF-8 strings if Multibyte String is available. Without
-MBString UTF-8 cannot be handled properly. For those rare cases where
-templates themselves have to juggle encodings, the new modifiers
-to_charset and from_charset may come in handy.
-
-  Plugin API and Performance
-
-All Plugins (modifiers, functions, blocks, resources,
-default_template_handlers, etc) are now receiving the
-Smarty_Internal_Template instance, where they were supplied with the
-Smarty instance in Smarty 3.0. *. As The Smarty_Internal_Template
-mimics the behavior of Smarty, this API simplification should not
-require any changes to custom plugins.
-
-The plugins shipped with Smarty 3.1 have been rewritten for better
-performance. Most notably {html_select_date} and {html_select_time}
-have been improved vastly. Performance aside, plugins have also been
-reviewed and generalized in their API. {html_select_date} and
-{html_select_time} now share almost all available options.
-
-The escape modifier now knows the $double_encode option, which will
-prevent entities from being encoded again.
-
-The capitalize modifier now know the $lc_rest option, which makes sure
-all letters following a capital letter are lower-cased.
-
-The count_sentences modifier now accepts (.?!) as
-legitimate endings of a sentence - previously only (.) was
-accepted
-
-The new unescape modifier is there to reverse the effects of the
-escape modifier. This applies to the escape formats html, htmlall and
-entity.
-
-  default_template_handler_func
-
-The invocation of $smarty->$default_template_handler_func had to be
-altered. Instead of a Smarty_Internal_Template, the fifth argument is
-now provided with the Smarty instance. New footprint:
-
-
-/**
- * Default Template Handler
- *
- * called when Smarty's file: resource is unable to load a requested file
- *
- * @param string   $type     resource type (e.g. "file", "string", "eval", "resource")
- * @param string   $name     resource name (e.g. "foo/bar.tpl")
- * @param string  &$content  template's content
- * @param integer &$modified template's modification time
- * @param Smarty   $smarty   Smarty instance
- * @return string|boolean   path to file or boolean true if $content and $modified
- *                          have been filled, boolean false if no default template
- *                          could be loaded
- */
-function default_template_handler_func($type, $name, &$content, &$modified, Smarty $smarty) {
-    if (false) {
-        // return corrected filepath
-        return "/tmp/some/foobar.tpl";
-    } elseif (false) {
-        // return a template directly
-        $content = "the template source";
-        $modified = time();
-        return true;
-    } else {
-        // tell smarty that we failed
-        return false;
-    }
-}
-
-  Stuff done to the compiler
-
-Many performance improvements have happened internally. One notable
-improvement is that all compiled templates are now handled as PHP
-functions. This speeds up repeated templates tremendously, as each one
-calls an (in-memory) PHP function instead of performing another file
-include/scan.
-
-New Features
-
-  Template syntax
-
- {block}..{/block}
-
-The {block} tag has a new hide option flag. It does suppress the block
-content if no corresponding child block exists.
-EXAMPLE:
-parent.tpl
-{block name=body hide} child content "{$smarty.block.child}" was
-inserted {block}
-In the above example the whole block will be suppressed if no child
-block "body" is existing.
-
- {setfilter}..{/setfilter}
-
-The new {setfilter} block tag allows the definition of filters which
-run on variable output.
-SYNTAX:
-{setfilter filter1|filter2|filter3....}
-Smarty3 will lookup up matching filters in the following search order:
-1. variable filter plugin in plugins_dir.
-2. a valid modifier. A modifier specification will also accept
-additional parameter like filter2:'foo'
-3. a PHP function
-{/setfilter} will turn previous filter setting off again.
-{setfilter} tags can be nested.
-EXAMPLE:
-{setfilter filter1}
-  {$foo}
-  {setfilter filter2}
-    {$bar}
-  {/setfilter}
-  {$buh}
-{/setfilter}
-{$blar}
-In the above example filter1 will run on the output of $foo, filter2
-on $bar, filter1 again on $buh and no filter on $blar.
-NOTES:
-- {$foo nofilter} will suppress the filters
-- These filters will run in addition to filters defined by
-registerFilter('variable',...), autoLoadFilter('variable',...) and
-defined default modifier.
-- {setfilter} will effect only the current template, not included
-subtemplates.
-
-  Resource API
-
-Smarty 3.1 features a new approach to resource management. The
-Smarty_Resource API allows simple, yet powerful integration of custom
-resources for templates and configuration files. It offers simple
-functions for loading data from a custom resource (e.g. database) as
-well as define new template types adhering to the special
-non-compiling (e,g, plain php) and non-compile-caching (e.g. eval:
-resource type) resources.
-
-See demo/plugins/resource.mysql.php for an example custom database
-resource.
-
-Note that old-fashioned registration of callbacks for resource
-management has been deprecated but is still possible with SmartyBC.
-
-  CacheResource API
-
-In line with the Resource API, the CacheResource API offers a more
-comfortable handling of output-cache data. With the
-Smarty_CacheResource_Custom accessing databases is made simple. With
-the introduction of Smarty_CacheResource_KeyValueStore the
-implementation of resources like memcache or APC became a no-brainer;
-simple hash-based storage systems are now supporting hierarchical
-output-caches.
-
-See demo/plugins/cacheresource.mysql.php for an example custom
-database CacheResource.
-See demo/plugins/cacheresource.memcache.php for an example custom
-memcache CacheResource using the KeyValueStore helper.
-
-Note that old-fashioned registration of $cache_handler is not possible
-anymore. As the functionality had not been ported to Smarty 3.0.x
-properly, it has been dropped from 3.1 completely.
-
-Locking facilities have been implemented to avoid concurrent cache
-generation. Enable cache locking by setting
-$smarty->cache_locking = true;
-
-  Relative Paths in Templates (File-Resource)
-
-As of Smarty 3.1 {include file="../foo.tpl"} and {include
-file="./foo.tpl"} will resolve relative to the template they're in.
-Relative paths are available with {include file="..."} and
-{extends file="..."}. As $smarty->fetch('../foo.tpl') and
-$smarty->fetch('./foo.tpl') cannot be relative to a template, an
-exception is thrown.
-
-  Addressing a specific $template_dir
-
-Smarty 3.1 introduces the $template_dir index notation.
-$smarty->fetch('[foo]bar.tpl') and {include file="[foo]bar.tpl"}
-require the template bar.tpl to be loaded from $template_dir['foo'];
-Smarty::setTemplateDir() and Smarty::addTemplateDir() offer ways to
-define indexes along with the actual directories.
-
-  Mixing Resources in extends-Resource
-
-Taking the php extends: template resource one step further, it is now
-possible to mix resources within an extends: call like
-$smarty->fetch("extends:file:foo.tpl|db:bar.tpl");
-
-To make eval: and string: resources available to the inheritance
-chain, eval:base64:TPL_STRING and eval:urlencode:TPL_STRING have been
-introduced. Supplying the base64 or urlencode flags will trigger
-decoding the TPL_STRING in with either base64_decode() or urldecode().
-
-  extends-Resource in template inheritance
-
-Template based inheritance may now inherit from php's extends:
-resource like {extends file="extends:foo.tpl|db:bar.tpl"}.
-
-  New Smarty property escape_html
-
-$smarty->escape_html = true will autoescape all template variable
-output by calling htmlspecialchars({$output}, ENT_QUOTES,
-SMARTY_RESOURCE_CHAR_SET).
-NOTE:
-This is a compile time option. If you change the setting you must make
-sure that the templates get recompiled.
-
-  New option at Smarty property compile_check
-
-The automatic recompilation of modified templates can now be
-controlled by the following settings:
-$smarty->compile_check = COMPILECHECK_OFF (false) - template files
-will not be checked
-$smarty->compile_check = COMPILECHECK_ON (true) - template files will
-always be checked
-$smarty->compile_check = COMPILECHECK_CACHEMISS - template files will
-be checked if caching is enabled and there is no existing cache file
-or it has expired
-
-  Automatic recompilation on Smarty version change
-
-Templates will now be automatically recompiled on Smarty version
-changes to avoide incompatibillities in the compiled code. Compiled
-template checked against the current setting of the SMARTY_VERSION
-constant.
-
-  default_config_handler_func()
-
-Analogous to the default_template_handler_func()
-default_config_handler_func() has been introduced.
-
-  default_plugin_handler_func()
-
-An optional default_plugin_handler_func() can be defined which gets called
-by the compiler on tags which can't be resolved internally or by plugins.
-The default_plugin_handler() can map tags to plugins on the fly.
-
-New getters/setters
-
-The following setters/getters will be part of the official
-documentation, and will be strongly recommended. Direct property
-access will still work for the foreseeable future... it will be
-transparently routed through the setters/getters, and consequently a
-bit slower.
-
-array|string getTemplateDir( [string $index] )
-replaces $smarty->template_dir; and $smarty->template_dir[$index];
-Smarty setTemplateDir( array|string $path )
-replaces $smarty->template_dir = "foo"; and $smarty->template_dir =
-array("foo", "bar");
-Smarty addTemplateDir( array|string $path, [string $index])
-replaces $smarty->template_dir[] = "bar"; and
-$smarty->template_dir[$index] = "bar";
-
-array|string getConfigDir( [string $index] )
-replaces $smarty->config_dir; and $smarty->config_dir[$index];
-Smarty setConfigDir( array|string $path )
-replaces $smarty->config_dir = "foo"; and $smarty->config_dir =
-array("foo", "bar");
-Smarty addConfigDir( array|string $path, [string $index])
-replaces $smarty->config_dir[] = "bar"; and
-$smarty->config_dir[$index] = "bar";
-
-array getPluginsDir()
-replaces $smarty->plugins_dir;
-Smarty setPluginsDir( array|string $path )
-replaces $smarty->plugins_dir = "foo";
-Smarty addPluginsDir( array|string $path )
-replaces $smarty->plugins_dir[] = "bar";
-
-string getCompileDir()
-replaces $smarty->compile_dir;
-Smarty setCompileDir( string $path )
-replaces $smarty->compile_dir = "foo";
-
-string getCacheDir()
-replaces $smarty->cache_dir;
-Smarty setCacheDir( string $path )
-replaces $smarty->cache_dir;

TODO.md

@@ -1,2 +0,0 @@
-# Pre-release Todos
-

TODO.txt

@@ -0,0 +1,31 @@
+# @TODO
+
+## CI-building optimization
+- compiled & cached templates should not contain references to local filesystem paths. Add an optional rootpath param
+  to `(add|set)TemplateDir` or as a separate method. Make it default to `getcwd()`. If a relative path is passed to
+  `(add|set)TemplateDir`, prefix it with the rootpath at runtime, but do not store the path.
+
+## Review direct variable property access
+- review ->value{$index} in ForTag
+
+## include inline
+- Re-introduce merge_compiled_includes and the {include inline} attribute?
+
+## Output buffering (major)
+- Fix ob_ output buffering commands being scattered around the codebase: Smarty's output model is fundamentally "echo everything, wrap in a buffer to capture". An alternative that would be where rendering returns a string rather than echoing — but that touches the entire compiled template format (the unifunc functions all echo) and is a large change.
+
+## Review public static vars (major)
+- such as _CHARSET and _IS_WINDOWS
+
+## Block / inheritance
+- Consider phasing out $smarty.block.child as this reverses the inheritance hierarchy and might cause infinite loops
+  when combined with $smarty.block.parent
+
+## Plugin system
+- fix template security checks in one place in compiler
+
+## Beatify output (major)
+- compiled templates could be proper classes, possibly using [nette/php-generator](https://packagist.org/packages/nette/php-generator)
+
+## Unrelated / other
+- review (and avoid) use of 'clone' keyword

composer.json

@@ -5,7 +5,7 @@
     "keywords": [
         "templating"
     ],
-    "homepage": "http://www.smarty.net",
+    "homepage": "https://smarty-php.github.io/smarty/",
     "license": "LGPL-3.0",
     "authors": [
         {
@@ -19,28 +19,35 @@
         {
             "name": "Rodney Rehm",
             "email": "rodney.rehm@medialize.de"
+        },
+        {
+            "name": "Simon Wisselink",
+            "homepage": "https://www.iwink.nl/"
         }
     ],
     "support": {
-        "irc": "irc://irc.freenode.org/smarty",
         "issues": "https://github.com/smarty-php/smarty/issues",
-        "forum": "http://www.smarty.net/forums/"
+        "forum": "https://github.com/smarty-php/smarty/discussions"
     },
     "require": {
-        "php": ">=5.2"
+        "php": "^7.2 || ^8.0",
+        "symfony/polyfill-mbstring": "^1.27"
     },
     "autoload": {
-        "classmap": [
-            "libs/"
+        "psr-4" : {
+            "Smarty\\" : "src/"
+        },
+        "files": [
+            "src/functions.php"
         ]
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "3.1.x-dev"
+            "dev-master": "5.0.x-dev"
         }
     },
     "require-dev": {
-        "phpunit/phpunit": "^7.5 || ^6.5 || ^5.7 || ^4.8",
-        "smarty/smarty-lexer": "^3.1"
+        "phpunit/phpunit": "^8.5 || ^7.5",
+        "smarty/smarty-lexer": "^4.0.2"
     }
 }

demo/index.php

@@ -2,11 +2,11 @@
 /**
  * Example Application
  *
- * @package Example-application
+
  */
-require '../libs/Smarty.class.php';
-$smarty = new Smarty;
-//$smarty->force_compile = true;
+
+$smarty = new \Smarty\Smarty;
+
 $smarty->debugging = true;
 $smarty->caching = true;
 $smarty->cache_lifetime = 120;

demo/plugins/cacheresource.apc.php

@@ -1,85 +0,0 @@
-<?php
-
-/**
- * APC CacheResource
- * CacheResource Implementation based on the KeyValueStore API to use
- * memcache as the storage resource for Smarty's output caching.
- * *
- *
- * @package CacheResource-examples
- * @author  Uwe Tews
- */
-class Smarty_CacheResource_Apc extends Smarty_CacheResource_KeyValueStore
-{
-    /**
-     * Smarty_CacheResource_Apc constructor.
-     *
-     * @throws \Exception
-     */
-    public function __construct()
-    {
-        // test if APC is present
-        if (!function_exists('apc_cache_info')) {
-            throw new Exception('APC Template Caching Error: APC is not installed');
-        }
-    }
-
-    /**
-     * Read values for a set of keys from cache
-     *
-     * @param array $keys list of keys to fetch
-     *
-     * @return array   list of values with the given keys used as indexes
-     * @return boolean true on success, false on failure
-     */
-    protected function read(array $keys)
-    {
-        $_res = array();
-        $res = apc_fetch($keys);
-        foreach ($res as $k => $v) {
-            $_res[ $k ] = $v;
-        }
-        return $_res;
-    }
-
-    /**
-     * Save values for a set of keys to cache
-     *
-     * @param array $keys   list of values to save
-     * @param int   $expire expiration time
-     *
-     * @return boolean true on success, false on failure
-     */
-    protected function write(array $keys, $expire = null)
-    {
-        foreach ($keys as $k => $v) {
-            apc_store($k, $v, $expire);
-        }
-        return true;
-    }
-
-    /**
-     * Remove values from cache
-     *
-     * @param array $keys list of keys to delete
-     *
-     * @return boolean true on success, false on failure
-     */
-    protected function delete(array $keys)
-    {
-        foreach ($keys as $k) {
-            apc_delete($k);
-        }
-        return true;
-    }
-
-    /**
-     * Remove *all* values from cache
-     *
-     * @return boolean true on success, false on failure
-     */
-    protected function purge()
-    {
-        return apc_clear_cache('user');
-    }
-}

demo/plugins/resource.mysql.php

@@ -1,101 +0,0 @@
-<?php
-
-/**
- * MySQL Resource
- * Resource Implementation based on the Custom API to use
- * MySQL as the storage resource for Smarty's templates and configs.
- * Table definition:
- * <pre>CREATE TABLE IF NOT EXISTS `templates` (
- *   `name` varchar(100) NOT NULL,
- *   `modified` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
- *   `source` text,
- *   PRIMARY KEY (`name`)
- * ) ENGINE=InnoDB DEFAULT CHARSET=utf8;</pre>
- * Demo data:
- * <pre>INSERT INTO `templates` (`name`, `modified`, `source`) VALUES ('test.tpl', "2010-12-25 22:00:00", '{$x="hello
- * world"}{$x}');</pre>
- *
- *
- * @package Resource-examples
- * @author  Rodney Rehm
- */
-class Smarty_Resource_Mysql extends Smarty_Resource_Custom
-{
-    /**
-     * PDO instance
-     *
-     * @var \PDO
-     */
-    protected $db;
-
-    /**
-     * prepared fetch() statement
-     *
-     * @var \PDOStatement
-     */
-    protected $fetch;
-
-    /**
-     * prepared fetchTimestamp() statement
-     *
-     * @var \PDOStatement
-     */
-    protected $mtime;
-
-    /**
-     * Smarty_Resource_Mysql constructor.
-     *
-     * @throws \SmartyException
-     */
-    public function __construct()
-    {
-        try {
-            $this->db = new PDO("mysql:dbname=test;host=127.0.0.1", "smarty");
-        } catch (PDOException $e) {
-            throw new SmartyException('Mysql Resource failed: ' . $e->getMessage());
-        }
-        $this->fetch = $this->db->prepare('SELECT modified, source FROM templates WHERE name = :name');
-        $this->mtime = $this->db->prepare('SELECT modified FROM templates WHERE name = :name');
-    }
-
-    /**
-     * Fetch a template and its modification time from database
-     *
-     * @param string  $name   template name
-     * @param string  $source template source
-     * @param integer $mtime  template modification timestamp (epoch)
-     *
-     * @return void
-     */
-    protected function fetch($name, &$source, &$mtime)
-    {
-        $this->fetch->execute(array('name' => $name));
-        $row = $this->fetch->fetch();
-        $this->fetch->closeCursor();
-        if ($row) {
-            $source = $row[ 'source' ];
-            $mtime = strtotime($row[ 'modified' ]);
-        } else {
-            $source = null;
-            $mtime = null;
-        }
-    }
-
-    /**
-     * Fetch a template's modification time from database
-     *
-     * @note implementing this method is optional. Only implement it if modification times can be accessed faster than
-     *       loading the comple template source.
-     *
-     * @param string $name template name
-     *
-     * @return integer timestamp (epoch) the template was modified
-     */
-    protected function fetchTimestamp($name)
-    {
-        $this->mtime->execute(array('name' => $name));
-        $mtime = $this->mtime->fetchColumn();
-        $this->mtime->closeCursor();
-        return strtotime($mtime);
-    }
-}

demo/plugins/resource.mysqls.php

@@ -1,77 +0,0 @@
-<?php
-
-/**
- * MySQL Resource
- * Resource Implementation based on the Custom API to use
- * MySQL as the storage resource for Smarty's templates and configs.
- * Note that this MySQL implementation fetches the source and timestamps in
- * a single database query, instead of two separate like resource.mysql.php does.
- * Table definition:
- * <pre>CREATE TABLE IF NOT EXISTS `templates` (
- *   `name` varchar(100) NOT NULL,
- *   `modified` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
- *   `source` text,
- *   PRIMARY KEY (`name`)
- * ) ENGINE=InnoDB DEFAULT CHARSET=utf8;</pre>
- * Demo data:
- * <pre>INSERT INTO `templates` (`name`, `modified`, `source`) VALUES ('test.tpl', "2010-12-25 22:00:00", '{$x="hello
- * world"}{$x}');</pre>
- *
- *
- * @package Resource-examples
- * @author  Rodney Rehm
- */
-class Smarty_Resource_Mysqls extends Smarty_Resource_Custom
-{
-    /**
-     * PDO instance
-     *
-     * @var \PDO
-     */
-    protected $db;
-
-    /**
-     * prepared fetch() statement
-     *
-     * @var \PDOStatement
-     */
-    protected $fetch;
-
-    /**
-     * Smarty_Resource_Mysqls constructor.
-     *
-     * @throws \SmartyException
-     */
-    public function __construct()
-    {
-        try {
-            $this->db = new PDO("mysql:dbname=test;host=127.0.0.1", "smarty");
-        } catch (PDOException $e) {
-            throw new SmartyException('Mysql Resource failed: ' . $e->getMessage());
-        }
-        $this->fetch = $this->db->prepare('SELECT modified, source FROM templates WHERE name = :name');
-    }
-
-    /**
-     * Fetch a template and its modification time from database
-     *
-     * @param string  $name   template name
-     * @param string  $source template source
-     * @param integer $mtime  template modification timestamp (epoch)
-     *
-     * @return void
-     */
-    protected function fetch($name, &$source, &$mtime)
-    {
-        $this->fetch->execute(array('name' => $name));
-        $row = $this->fetch->fetch();
-        $this->fetch->closeCursor();
-        if ($row) {
-            $source = $row[ 'source' ];
-            $mtime = strtotime($row[ 'modified' ]);
-        } else {
-            $source = null;
-            $mtime = null;
-        }
-    }
-}

demo/templates/index.tpl

@@ -11,8 +11,6 @@
 
     The current date and time is {$smarty.now|date_format:"%Y-%m-%d %H:%M:%S"}
 
-    The value of global assigned variable $SCRIPT_NAME is {$SCRIPT_NAME}
-
     Example of accessing server environment variable SERVER_NAME: {$smarty.server.SERVER_NAME}
 
     The value of {ldelim}$Name{rdelim} is <b>{$Name}</b>

docker-compose.yml

@@ -0,0 +1,79 @@
+services:
+  base:
+    build:
+      context: .
+      dockerfile: ./utilities/testrunners/php72/Dockerfile
+    volumes:
+      - smarty-code:/app
+    working_dir: /app
+  php72:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php72/Dockerfile
+  php73:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php73/Dockerfile
+  php74:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php74/Dockerfile
+  php80:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php80/Dockerfile
+  php81:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php81/Dockerfile
+  php82:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php82/Dockerfile
+  php83:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php83/Dockerfile
+  php84:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php84/Dockerfile
+volumes:
+  smarty-code:
+
+x-mutagen:
+  sync:
+    defaults:
+      symlink:
+        mode: "posix-raw"
+      ignore:
+        vcs: true
+        paths:
+          - ".docker"
+          - ".env.docker"
+          - ".bundles"
+          - "docker-compose.yml"
+          - ".idea"
+          - ".DS_Store"
+      mode: "two-way-resolved"
+      configurationBeta:
+        permissions:
+          defaultOwner: "id:${APP_USER_ID}"
+          defaultGroup: "id:${APP_GROUP_ID}"
+          defaultFileMode: 0666
+          defaultDirectoryMode: 0755
+      permissions:
+        defaultOwner: "id:${APP_USER_ID}"
+        defaultGroup: "id:${APP_GROUP_ID}"
+    smarty-code:
+      alpha: "."
+      beta: "volume://smarty-code"
+

docs/_config.yml

@@ -0,0 +1 @@
+theme: jekyll-theme-minimal

docs/api/basics.md

@@ -0,0 +1,93 @@
+# Basics
+
+## Installation
+For installation instructies, please see the [getting started section](../getting-started.md).
+
+## Rendering a template
+Here's how you create an instance of Smarty in your PHP scripts:
+```php
+<?php
+
+require 'vendor/autoload.php';
+use Smarty\Smarty;
+$smarty = new Smarty();
+```
+
+You now have a Smarty object that you can use to render templates.
+
+```php
+<?php
+
+require 'vendor/autoload.php';
+use Smarty\Smarty;
+$smarty = new Smarty();
+
+$smarty->display('string:The current smarty version is: {$smarty.version}.');
+// or 
+echo $smarty->fetch('string:The current smarty version is: {$smarty.version}.');
+```
+
+## Using file-based templates
+You probably want to manage your templates as files. Create a subdirectory called 'templates' and
+then configure Smarty to use that:
+
+```php
+<?php
+
+require 'vendor/autoload.php';
+use Smarty\Smarty;
+$smarty = new Smarty();
+
+$smarty->setTemplateDir(__DIR__ . '/templates');
+```
+
+Say you have a template file called 'version.tpl', stored in the 'templates' directory like this:
+```smarty
+<h1>Hi</h1>
+The current smarty version is: {$smarty.version|escape}.
+```
+
+You can now render this, using:
+```php
+<?php
+
+require 'vendor/autoload.php';
+use Smarty\Smarty;
+$smarty = new Smarty();
+
+$smarty->setTemplateDir(__DIR__ . '/templates');
+$smarty->display('version.tpl');
+```
+
+## Assigning variables
+
+Templates start to become really useful once you add variables to the mix.
+
+Create a template called 'footer.tpl' in the 'templates' directory like this:
+```smarty
+<small>Copyright {$companyName|escape}</small>
+```
+
+Now assign a value to the 'companyName' variable and render your template like this:
+
+```php
+<?php
+
+require 'vendor/autoload.php';
+use Smarty\Smarty;
+$smarty = new Smarty();
+
+$smarty->setTemplateDir(__DIR__ . '/templates');
+$smarty->assign('companyName', 'AC & ME Corp.');
+$smarty->display('footer.tpl');
+```
+
+Run this, and you will see:
+
+```html
+<small>Copyright AC &amp; ME Corp.</small>
+```
+
+Note how the [escape modifier](../designers/language-modifiers/language-modifier-escape.md) 
+translated the `&` character into the proper HTML syntax `&amp;`.
+Read more about auto-escaping in the [next section](./configuring.md).

docs/api/caching/basics.md

@@ -0,0 +1,184 @@
+# Caching
+
+Caching is used to speed up the rendering of a template by saving and re-using the output. 
+
+If a cached version of the call is available, that is displayed instead of
+regenerating the output. Caching can speed things up tremendously,
+especially templates with longer computation times. 
+
+Since templates can include or extend other templates, one
+cache file could conceivably be made up of several template files,
+config files, etc.
+
+> ** Note **
+> 
+> Since templates are dynamic, it is important to be careful what you are
+> caching and for how long. For instance, if you are displaying the front
+> page of your website that does not change its content very often, it
+> might work well to cache this page for an hour or more. On the other
+> hand, if you are displaying a page with a timetable containing new
+> information by the minute, it would not make sense to cache this page.
+
+## Setting Up Caching
+
+The first thing to do is enable caching by calling `Smarty::setCaching()` with either
+`\Smarty\Smarty::CACHING_LIFETIME_CURRENT` or `\Smarty\Smarty::CACHING_LIFETIME_SAVED`.
+Or with `\Smarty\Smarty::CACHING_OFF` to disable caching again.
+
+```php
+<?php
+use Smarty\Smarty;
+$smarty = new Smarty;
+
+// enable caching, using the current lifetime (see below)
+$smarty->setCaching(Smarty::CACHING_LIFETIME_CURRENT);
+
+// enable caching, using the lifetime set when the cache was saved (see below)
+$smarty->setCaching(Smarty::CACHING_LIFETIME_SAVED);
+
+// disable caching
+$smarty->setCaching(Smarty::CACHING_OFF);
+
+$smarty->display('index.tpl');
+```
+
+With caching enabled, the function call to `$smarty->display('index.tpl')` will
+render the template as usual, but also saves a copy of its output. On the
+next call to `$smarty->display('index.tpl')`, the cached copy will be used
+instead of rendering the template again.
+
+> **Note**
+>
+> By default, Smarty saved its caches as files in a dir called `cache` relative to the current 
+> directory. The default directory can be changed using `$smarty->setCacheDir('/some/cache/dir');` 
+> The files are named similar
+> to the template name. Although they end in the `.php` extension, they
+> are not intended to be directly executable. Do not edit these files!
+
+## Cache lifetime
+
+Each cached page has a limited lifetime. The default value is 3600
+seconds, or one hour. After that time expires, the cache is regenerated.
+
+You can change the lifetime as follows:
+```php
+<?php
+use Smarty\Smarty;
+$smarty = new Smarty;
+
+$smarty->setCaching(Smarty::CACHING_LIFETIME_CURRENT); 
+// or $smarty->setCaching(Smarty::CACHING_LIFETIME_SAVED);
+
+// set the cache_lifetime to 5 minutes
+$smarty->setCacheLifetime(5 * 60);
+```
+
+Setting caching to a value of `\Smarty\Smarty::CACHING_LIFETIME_CURRENT` tells Smarty to use
+the current lifetime to determine if the cache has expired.
+
+A value of `\Smarty\Smarty::CACHING\_LIFETIME\_SAVED` tells Smarty to use the lifetime value at the time the
+cache was generated. This way you can set the just before rendering a template to have granular control over
+when that particular cache expires.
+
+An example:
+```php
+<?php
+use Smarty\Smarty;
+$smarty = new Smarty;
+
+// retain current cache lifetime for each specific display call
+$smarty->setCaching(Smarty::CACHING_LIFETIME_SAVED);
+
+// set the cache_lifetime for index.tpl to 5 minutes
+$smarty->setCacheLifetime(300);
+$smarty->display('index.tpl');
+
+// set the cache_lifetime for home.tpl to 1 hour
+$smarty->setCacheLifetime(3600);
+$smarty->display('home.tpl');
+
+// NOTE: the following $cache_lifetime setting will not work when $caching
+// is set to Smarty::CACHING_LIFETIME_SAVED.
+// The cache lifetime for home.tpl has already been set
+// to 1 hour, and will no longer respect the value of $cache_lifetime.
+// The home.tpl cache will still expire after 1 hour.
+$smarty->setCacheLifetime(30); // 30 seconds
+$smarty->display('home.tpl');
+```
+
+## Compile check
+
+By default, every template file and config file that is involved with the cache file
+is checked for modification. If any of the files have been modified
+since the cache was generated, the cache is immediately regenerated.
+
+This is a computational overhead, so for optimum performance, disable this on a production environment:
+
+```php
+<?php
+use Smarty\Smarty;
+$smarty = new Smarty;
+
+$smarty->setCaching(Smarty::CACHING_LIFETIME_CURRENT);
+$smarty->setCompileCheck(Smarty::COMPILECHECK_OFF);
+
+$smarty->display('index.tpl');
+```
+
+## Checking if a template is cached
+
+Smarty's `isCached() method can be used to test if a
+template has a valid cache or not. If you have a cached template that
+requires something like a database fetch, you can use this to skip that
+process.
+
+```php
+<?php
+use Smarty\Smarty;
+$smarty = new Smarty;
+
+$smarty->setCaching(Smarty::CACHING_LIFETIME_CURRENT);
+
+if (!$smarty->isCached('index.tpl')) {
+    // No cache available, do variable assignments here.
+    $smarty->assign('data', do_expensive_database_calls());
+}
+
+$smarty->display('index.tpl');
+```
+
+## Nocache-blocks
+You can keep parts of a page dynamic (disable caching) with the
+[`{nocache}{/nocache}`](../../designers/language-builtin-functions/language-function-nocache.md) block function, 
+or by using the `nocache` parameter for most template functions.
+
+Let's say the whole page can be cached except for a banner that is
+displayed down the side of the page. By using a [`{nocache}{/nocache}`](../../designers/language-builtin-functions/language-function-nocache.md)
+block for the banner, you can
+keep this element dynamic within the cached content.
+
+## Clearing the cache
+You can clear all the cache files with Smarty's `clearAllCache()` method, or individual cache
+files with the `clearCache()` method.
+
+```php
+<?php
+use Smarty\Smarty;
+$smarty = new Smarty;
+
+$smarty->setCaching(Smarty::CACHING_LIFETIME_CURRENT);
+
+// clear only cache for index.tpl
+$smarty->clearCache('index.tpl');
+
+// clear out all cache files
+$smarty->clearAllCache();
+
+// clear out all cache files older than one hour
+$smarty->clearAllCache(3600);
+
+// or, clear all expired caches
+$smarty->clearAllCache(Smarty::CLEAR_EXPIRED);
+```
+
+        

docs/api/caching/custom-storage-layers.md

@@ -0,0 +1,36 @@
+# Custom cache storage layers
+
+As an alternative to using the default file-based caching mechanism, you
+can specify a custom cache implementation that will be used to read,
+write and clear cached files.
+
+With a custom cache implementation you could replace the slow filesystem by a
+faster storage engine, centralize the cache to be accessible to multiple
+servers.
+
+Smarty requires implementations to extend `\Smarty\Cacheresource\Base`, but encourages you to either extend 
+`\Smarty\Cacheresource\Custom` or `\Smarty\Cacheresource\KeyValueStore`.
+
+- `\Smarty\Cacheresource\Custom` is a simple API directing all read, write,
+clear calls to your implementation. This API allows you to store
+wherever and however you deem fit. 
+- `\Smarty\Cacheresource\KeyValueStore` allows you to turn any 
+KeyValue-Store (like APC or Memcache) into a full-featured
+CacheResource implementation. Everything around deep
+cache-groups like "a|b|c" is being handled for you in a way that
+guarantees clearing the cache-group "a" will clear all nested groups 
+as well - even though KeyValue-Stores don't allow this kind of
+hierarchy by nature.
+
+Custom CacheResources must be registered on
+runtime with `Smarty\Smarty::setCacheResource()`:
+
+```php
+<?php
+
+use Smarty\Smarty;
+$smarty = new Smarty();
+
+$smarty->setCacheResource(new My_CacheResource_Mysql());
+```
+       

docs/api/caching/multiple-caches-per-template.md

@@ -0,0 +1,137 @@
+# Multiple caches per template
+
+## Introduction
+
+You can have multiple cache files for a single call to
+`display()` or `fetch()`. 
+
+Let's say that
+a call to `$smarty->display('index.tpl')` may have several different output
+contents depending on some condition, and you want separate caches for
+each one. You can do this by passing a `$cache_id` as the second
+parameter to the function call:
+
+```php
+<?php
+use Smarty\Smarty;
+$smarty = new Smarty;
+
+$smarty->setCaching(Smarty::CACHING_LIFETIME_CURRENT);
+
+$my_cache_id = (int) $_GET['article_id'];
+
+$smarty->display('index.tpl', $my_cache_id);
+```
+
+
+Above, we are passing the variable `$my_cache_id` to
+[`display()`](#api.display) as the `$cache_id`. For each unique value of
+`$my_cache_id`, a separate cache will be generated for `index.tpl`. In
+this example, `article_id` was passed in the URL and is used as the
+`$cache_id`.
+
+> **Note**
+>
+> Be very cautious when passing values from a client (web browser) into
+> Smarty or any PHP application. Although the above example of using the
+> article_id from the URL looks handy, it could have bad consequences.
+> The `$cache_id` is used to create a directory on the file system, so
+> if the user decided to write a script that sends random article_id's at a rapid pace,
+> this could possibly cause problems at the server level.
+> Be sure to sanitize any data passed in before using it. In this example, you might want to check if
+> the article_id is a valid ID in the database.
+
+Be sure to pass the same `$cache_id` as the second parameter to
+`isCached()` and `clearCache()`.
+
+```php
+<?php
+use Smarty\Smarty;
+$smarty = new Smarty;
+
+$smarty->setCaching(Smarty::CACHING_LIFETIME_CURRENT);
+
+$my_cache_id = (int) $_GET['article_id'];
+
+if (!$smarty->isCached('index.tpl', $my_cache_id)) {
+    // ...
+}
+
+$smarty->display('index.tpl', $my_cache_id);
+```
+
+## Clearing specific caches
+
+You can clear all caches for a particular `$cache_id` by passing NULL as
+the first parameter to `clearCache()`.
+
+```php
+<?php
+use Smarty\Smarty;
+$smarty = new Smarty;
+
+$smarty->setCaching(Smarty::CACHING_LIFETIME_CURRENT);
+
+// clear all caches with "sports" as the $cache_id
+$smarty->clearCache(null, 'sports');
+
+$smarty->display('index.tpl', 'sports');
+```
+
+In this manner, you can "group" your caches together by giving them the
+same `$cache_id`.
+
+## Advanced cache grouping
+
+You can do more elaborate grouping by setting up `$cache_id` groups.
+This is accomplished by separating each sub-group with a vertical bar
+`|` in the `$cache_id` value. You can have as many sub-groups as you
+like.
+
+-   You can think of cache groups like a directory hierarchy. For
+    instance, a cache group of `'a|b|c'` could be thought of as the
+    directory structure `'/a/b/c/'`.
+
+-   `clearCache(null, 'a|b|c')` would be like removing the files
+    `'/a/b/c/*'`. `clearCache(null, 'a|b')` would be like removing the
+    files `'/a/b/*'`.
+
+-   If you specify a template name such as
+    `clearCache('foo.tpl', 'a|b|c')` then Smarty will attempt to remove
+    `'/a/b/c/foo.tpl'`.
+
+-   You CANNOT remove a specified template name under multiple cache
+    groups such as `'/a/b/*/foo.tpl'`, the cache grouping works
+    left-to-right ONLY. You will need to group your templates under a
+    single cache group hierarchy to be able to clear them as a group.
+
+Cache grouping should not be confused with your template directory
+hierarchy, the cache grouping has no knowledge of how your templates are
+structured. So for example, if you have a template structure like
+`themes/blue/index.tpl` and you want to be able to clear all the cache
+files for the "blue" theme, you will need to create a cache group
+structure that mimics your template file structure, such as
+`display('themes/blue/index.tpl', 'themes|blue')`, then clear them with
+`clearCache(null, 'themes|blue')`.
+
+```php
+<?php
+use Smarty\Smarty;
+$smarty = new Smarty;
+
+$smarty->setCaching(Smarty::CACHING_LIFETIME_CURRENT);
+
+// clear all caches with 'sports|basketball' as the first two cache_id groups
+$smarty->clearCache(null, 'sports|basketball');
+
+// clear all caches with "sports" as the first cache_id group. This would
+// include "sports|basketball", or "sports|(anything)|(anything)|(anything)|..."
+$smarty->clearCache(null, 'sports');
+
+// clear the foo.tpl cache file with "sports|basketball" as the cache_id
+$smarty->clearCache('foo.tpl', 'sports|basketball');
+
+$smarty->display('index.tpl', 'sports|basketball');
+```
+
+          

docs/api/configuring.md

@@ -0,0 +1,225 @@
+# Configuring Smarty
+
+## Setting the template path
+By default, Smarty looks for templates to render in `./templates`.
+
+You can change this, or even use multiple paths to use when looking for templates.
+
+If you need to change this, you can use `setTemplateDir()` or `addTemplateDir()`.
+Use `getTemplateDir()` to retrieve the configured paths.
+
+```php
+<?php
+
+ // set a single directory where the config files are stored
+$smarty->setTemplateDir('./templates');
+
+// set multiple directories where templates are stored
+$smarty->setTemplateDir(['./templates', './templates_2', './templates_3']);
+
+// add directory where templates files are stored to the current list of dirs
+$smarty->addTemplateDir('./templates_1');
+
+// add multiple directories to the current list of dirs
+$smarty->addTemplateDir([
+    './templates_2',
+    './templates_3',
+]);
+
+// chaining of method calls
+$smarty->setTemplateDir('./templates')
+       ->addTemplateDir('./templates_1')
+       ->addTemplateDir('./templates_2');
+
+// insert a template dir before exising template dirs
+$smarty->prependTemplateDir('./more_important_templates')
+
+// get all directories where config files are stored
+$template_dirs = $smarty->getTemplateDir();
+var_dump($template_dirs); // array
+
+// get directory identified by key
+$template_dir = $smarty->getTemplateDir(0);
+var_dump($template_dir); // string
+```
+
+## Setting the path for compiled templates
+Smarty compiles templates to native PHP to be as fast as possible.
+The default path where these PHP-files are stored is `./templates_c`.
+
+If you need to change this, you can use `setCompileDir()`.
+Use `getCompileDir()` to retrieve the configured path.
+
+```php
+<?php
+
+// set another path to store compiled templates
+$smarty->setCompileDir('/data/compiled_templates');
+
+// get directory where compiled templates are stored
+$compileDir = $smarty->getCompileDir();
+```
+
+
+## Setting the config path
+Smarty can [load data from config files](./variables/config-files.md).
+By default, Smarty loads the config files from `./configs`.
+
+You can change this, or even use multiple paths to use when looking for config files.
+
+If you need to change this, you can use `setConfigDir()` or `addConfigDir()`.
+Use `getConfigDir()` to retrieve the configured paths.
+
+```php
+<?php
+
+ // set a single directory where the config files are stored
+$smarty->setConfigDir('./config');
+
+// set multiple directories where config files are stored
+$smarty->setConfigDir(['./config', './config_2', './config_3']);
+
+// add directory where config files are stored to the current list of dirs
+$smarty->addConfigDir('./config_1');
+
+// add multiple directories to the current list of dirs
+$smarty->addConfigDir([
+    './config_2',
+    './config_3',
+]);
+
+// chaining of method calls
+$smarty->setConfigDir('./config')
+       ->addConfigDir('./config_1', 'one')
+       ->addConfigDir('./config_2', 'two');
+
+// get all directories where config files are stored
+$config_dirs = $smarty->getConfigDir();
+var_dump($config_dirs); // array
+
+// get directory identified by key
+$config_dir = $smarty->getConfigDir(0);
+var_dump($config_dir); // string
+```
+
+## Setting the path for caches
+Even though Smarty runs templates as native PHP for maximum speed, it still needs to 
+execute the PHP code on each call. If your data doesn't change all that often, you
+may be able to speed up your application even more by using output caching.
+
+Output caching can be a tricky subject, so we devoted an entire [section to caching](./caching/basics.md).
+Be sure to read that if you want to use caching.
+
+By default, Smarty stores caches to PHP-files in a subdirectory named `./cache`.
+
+If you need to change this, you can use `setCacheDir()`.
+Use `getCacheDir()` to retrieve the configured path.
+
+```php
+<?php
+
+// set another path to store caches
+$smarty->setCacheDir('/data/caches');
+
+// get directory where cached templates are stored
+$cacheDir = $smarty->getCacheDir();
+```
+
+## Enabling auto-escaping
+By default, Smarty does not escape anything you render in your templates. If you use
+Smarty to render a HTML-page, this means that you will have to make sure that you do
+not render any characters that have a special meaning in HTML, such as `&`, `<` and `>`,
+or apply the [escape modifier](../designers/language-modifiers/language-modifier-escape.md) 
+to anything you want to render.
+
+If you forget to do so, you may break your HTML page, or even create a vulnerability for 
+attacks known as [XSS or Cross Site Scripting](https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html).
+
+Luckily, you can tell Smarty to automatically apply the escape modifier to any dynamic part of your template.
+It's like Smarty magically adds `|escape` to every variable you use on a web page.
+
+Enable auto-escaping for HTML as follows:
+```php
+$smarty->setEscapeHtml(true);
+```
+
+When auto-escaping is enabled, the `|escape` modifier's default mode (`html`) has no effect,
+to avoid double-escaping. It is possible to force it with the `force` mode.
+Other modes (`htmlall`, `url`, `urlpathinfo`, `quotes`, `javascript`) may be used
+with the result you might expect, without double-escaping.
+
+Even when auto-escaping is enabled, you might want to display the content of a variable without
+escaping it. To do so, use the `|raw` modifier.
+
+Examples (with auto-escaping enabled):
+```smarty
+{* these three statements are identical *}
+{$myVar}
+{$myVar|escape}
+{$myVar|escape:'html'}
+
+{* no double-escaping on these statements *}
+{$var|escape:'htmlall'}
+{$myVar|escape:'url'}
+{$myVar|escape:'urlpathinfo'}
+{$myVar|escape:'quotes'}
+{$myVar|escape:'javascript'}
+
+{* no escaping at all *}
+{$myVar|raw}
+
+{* force double-escaping *}
+{$myVar|escape:'force'}
+```
+
+## Disabling compile check
+By default, Smarty tests to see if the
+current template has changed since the last time
+it was compiled. If it has changed, it recompiles that template. 
+
+Once an application is put into production, this compile-check step 
+is usually no longer needed and the extra checks can significantly hurt performance. 
+Be sure to disable compile checking on production for maximum performance. 
+```php
+<?php
+$smarty->setCompileCheck(\Smarty\Smarty::COMPILECHECK_OFF);
+```
+
+If [`caching`](./caching/basics.md) is enabled and compile-check is
+enabled, then the cache files will get regenerated if an involved
+template file or config file was updated.
+
+## Charset encoding
+
+There are a variety of encodings for textual data, ISO-8859-1 (Latin1)
+and UTF-8 being the most popular. Unless you change `\Smarty\Smarty::$_CHARSET`,
+Smarty recognizes `UTF-8` as the internal charset.
+
+> **Note**
+>
+> `ISO-8859-1` has been PHP\'s default internal charset since the
+> beginning. Unicode has been evolving since 1991. Since then, it has
+> become the one charset to conquer them all, as it is capable of
+> encoding most of the known characters even across different character
+> systems (latin, cyrillic, japanese, ...). `UTF-8` is unicode\'s most
+> used encoding, as it allows referencing the thousands of character
+> with the smallest size overhead possible.
+>
+> Since unicode and UTF-8 are very widespread nowadays, their use is
+> strongly encouraged.
+
+> **Note**
+>
+> Smarty\'s internals and core plugins are truly UTF-8 compatible since
+> Smarty 3.1.
+
+```php
+<?php
+    
+// use japanese character encoding
+mb_internal_charset('EUC-JP');
+
+\Smarty\Smarty::$_CHARSET = 'EUC-JP';
+$smarty = new \Smarty\Smarty();
+```
+     

docs/api/extending/block-tags.md

@@ -0,0 +1,59 @@
+# Custom block tags
+
+Block tags are tags of the form: `{func} .. {/func}`. In other
+words, they enclose a template block and operate on the contents of this
+block. 
+
+Block functions take precedence over normal tags of the same name, that is, you
+cannot have both custom tag `{func}` and block tag `{func}..{/func}`.
+
+-   By default, your function implementation is called twice by Smarty:
+    once for the opening tag, and once for the closing tag. (See
+    `$repeat` below on how to change this.)
+
+-   Only the opening tag of the block has attributes. All attributes are contained in the `$params`
+    variable as an associative array. The opening tag attributes are
+    also accessible to your function when processing the closing tag.
+
+-   The value of the `$content` variable depends on whether your
+    function is called for the opening or closing tag. In case of the
+    opening tag, it will be NULL, and in case of the closing tag it will
+    be the contents of the template block. Note that the template block
+    will have already been processed by Smarty, so all you will receive
+    is the template output, not the template source.
+
+-   The parameter `$repeat` is passed by reference to the function
+    implementation and provides a possibility for it to control how many
+    times the block is displayed. By default `$repeat` is TRUE at the
+    first call of the block function (the opening tag) and FALSE on all
+    subsequent calls to the block function (the block's closing tag).
+    Each time the function implementation returns with `$repeat` being
+    TRUE, the contents between `{func}...{/func}` are evaluated and the
+    function implementation is called again with the new block contents
+    in the parameter `$content`.
+
+Example:
+```php
+<?php
+
+function smarty_block_translate($params, $content, \Smarty\Template $template, &$repeat) {
+    // only output on the closing tag
+    if (!$repeat){
+        if (isset($content)) {
+            $lang = $params['lang'];
+            // do some intelligent translation thing here with $content
+            return $translation;
+        }
+    }
+}
+
+$smarty->registerPlugin(Smarty\Smarty::PLUGIN_BLOCK, 'translate', 'smarty_block_translate');
+```
+
+This can now be used in your templates as follows:
+
+```smarty
+{translate lang='nl'}
+    Quia omnis nulla omnis iusto est id et.
+{/translate}
+```

docs/api/extending/extensions.md

@@ -0,0 +1,101 @@
+# Creating an extension
+
+## Default extensions
+
+In order to organize your custom tags and modifiers, you can create an Extension.
+In fact, most of Smarty itself is organized into two extensions:
+
+- the core extension, which provides the basic language tags such as `{if}`, `{for}` and `{assign}`. 
+- the default extension, which provides all default modifiers such as `|escape`,  `|nl2br` and  `|number_format` 
+  and tags such as `{html_image}`, `{mailto}` and `{textformat}` that are enabled by default, but not necessarily universal.
+
+> ** Note **
+> 
+> There is also the 'BCPluginsAdapter' extension, which does not add any new functionality, but
+> wraps calls to deprecated methods such as `Smarty\Smarty::addPluginsDir()` and `Smarty\Smarty::loadFilter()`.
+
+## Writing your own extension
+
+In order to write your own custom extension, you must write a class that implements `Smarty\Extension\ExtensionInterface`.
+However, it is usually easier to extend `Smarty\Extension\Base` which provides empty implementation for each of the methods
+required by `Smarty\Extension\ExtensionInterface`. This allows you to only override the method(s) you need.
+
+Example:
+```php
+<?php
+
+use Smarty\Extension\Base;
+
+class MyExtension extends Base {
+
+    public function getModifierCompiler(string $modifier): ?\Smarty\Compile\Modifier\ModifierCompilerInterface {
+
+		switch ($modifier) {
+			case 'array_escape': return new MyArrayEscapeModifierCompiler();
+			case 'array_unescape': return new MyArrayUnescapeModifierCompiler();
+        }
+
+		return null;
+	}
+}
+
+```
+Another example, that would allow you to use any valid PHP callable as a modifier in your templates:
+
+```php
+<?php
+
+use Smarty\Extension\Base;
+
+class MyCallablePassThroughExtension extends Base {
+
+    public function getModifierCallback(string $modifierName) {
+    
+        if (is_callable($modifierName)) {
+            return $modifierName;
+        }
+    
+		return null;
+	}
+}
+
+```
+
+Writing an extension allows you to add a group of tags, block tags and modifiers to the Smarty language.
+It also allows you to register pre-, post- and output-filters in a structured way. 
+The files in `src/Extension/` in the `smarty/smarty` dir should give you all the information you need to start
+writing your own extension.
+
+## Registering an extension
+
+When you have written your extension, add it to a Smarty instance as follows:
+
+```php
+<?php
+
+use Smarty\Smarty;
+
+$smarty = new Smarty();
+
+$smarty->addExtension(new MyCustomExtension());
+```
+
+This will add `MyCustomExtension` to the end of the extension list, meaning that you cannot override tags or modifiers
+from one of Smarty's default extensions.
+
+Should you wish to insert your extension at the top of the extension list, or create a very limited Smarty version that
+only contains the core extension, you can use `Smarty\Smarty::setExtensions()` to override the list of extensions.
+
+```php
+<?php
+
+use Smarty\Smarty;
+
+$smarty = new Smarty();
+
+$smarty->setExtensions([
+    new Smarty\Extension\CoreExtension(),
+    new MyCustomExtension(),
+    new Smarty\Extension\DefaultExtension(),
+]);
+```

docs/api/extending/introduction.md

@@ -0,0 +1,10 @@
+# Extending Smarty
+
+By default, Smarty is already very complete and powerful. However, you can unlock its real potential by 
+extending Smarty.
+
+There are various ways to extend Smarty for it to suit your needs. You can create custom
+[tags](tags.md), [block tags](block-tags.md) and [modifiers](modifiers.md) by registering a method as a plugin.
+
+If this becomes too messy, you can group your custom tags, modifiers, and more into an [Extension](extensions.md). 
+

docs/api/extending/modifiers.md

@@ -0,0 +1,27 @@
+# Custom modifiers
+
+Modifiers are little functions that are applied
+to a variable in the template before it is displayed or used in some
+other context. Smarty comes with a bunch of [modifiers](../../designers/language-modifiers/index.md), but you can 
+easily add your own.
+
+In order to do so, you must write a function that accepts as its first parameter the value on which the
+modifier is to operate. The rest of the parameters are optional, depending on what kind of operation is to be performed.
+
+The modifier has to return the result of its processing.
+
+For example:
+```php
+<?php
+
+function smarty_modifier_substr($string, $offset, $length) {
+    return substr($string, $offset, $length);
+}
+
+$smarty->registerPlugin(Smarty\Smarty::PLUGIN_MODIFIER, 'substr', 'smarty_modifier_substr');
+```
+
+You can now use this in your templates as follows:
+```smarty
+{$applicationName|substr:0:20}
+```

docs/api/extending/tags.md

@@ -0,0 +1,84 @@
+# Custom tags
+
+You can add your own tags to the Smarty language. 
+
+## Runtime tags
+
+Usually, you'll add a runtime tag. Adding a runtime tag requires you to provide a callback function that accepts
+two parameters:
+
+- `$params`:  all attributes from the template as an associative array.
+- `$template`: a `Smarty\Template` object representing the template where tag was used.
+
+The output (return value) of the function will be substituted in place
+of the tag in the template.
+
+If the function needs to assign some variables to the template or use
+some other Smarty-provided functionality, it can use the supplied
+`$template` object to do so.
+
+```php
+<?php
+
+function smarty_tag_eightball($params, \Smarty\Template $template): string {
+    $answers = [
+        'Yes',
+        'No',
+        'No way',
+        'Outlook not so good',
+        'Ask again soon',
+        'Maybe in your reality'
+    ];
+
+    $result = array_rand($answers);
+    return $answers[$result];
+}
+
+$smarty->registerPlugin(Smarty\Smarty::PLUGIN_FUNCTION, 'eightball', 'smarty_tag_eightball');
+```
+
+Which can now be used in the template as:
+
+```smarty
+Question: Will we ever have time travel?
+Answer: {eightball}.
+```
+
+## Compiler tags
+
+Compiler tags are called only during compilation of the template.
+
+They are useful for injecting PHP code or time-sensitive static content
+into the template. If there is both a compiler function and a runtime tag registered under the same name,
+the compiler function has precedence.
+
+The compiler function is passed two parameters: the params array which
+contains precompiled strings for the attribute values and the Smarty
+object. It's supposed to return the code to be injected into the
+compiled template including the surrounding PHP tags.
+
+Example:
+```php
+<?php
+
+function smarty_compiler_tplheader($params, Smarty $smarty) {
+    return "<?php\necho '" . $smarty->_current_file . " compiled at " . date('Y-m-d H:M'). "';\n?>";
+}
+
+$smarty->registerPlugin(Smarty\Smarty::PLUGIN_COMPILER, 'tplheader', 'smarty_compiler_tplheader');
+```
+
+This function can be called from the template as:
+
+```smarty
+{* this function gets executed at compile time only *}
+{tplheader}
+```
+
+The resulting PHP code in the compiled template would be something like
+this:
+
+```php
+<?php
+echo 'index.tpl compiled at 2023-02-20 20:02';
+```

docs/api/filters/output-filters.md

@@ -0,0 +1,35 @@
+# Output filters
+
+When a template is rendered, its output can be sent through one or more
+output filters.
+
+> **Note**
+> This differs from [`prefilters`](prefilters.md) and 
+> [`postfilters`](postfilters.md) because, pre- and postfilters
+> operate on compiled templates before they are saved to the disk, whereas
+> output filters operate on the template output when it is executed.
+
+Smarty will pass the template output as the first argument, and expect the function
+to return the result of the processing.
+
+Output filters can be either added as part of an [Extension](../extending/extensions.md) or 
+registered as shown below.
+
+This will provide a rudimentary protection against spambots:
+```php
+<?php
+
+function protect_email($tpl_output, \Smarty\Template\ $template)
+{
+    return preg_replace(
+        '!(\S+)@([a-zA-Z0-9\.\-]+\.([a-zA-Z]{2,3}|[0-9]{1,3}))!',
+        '$1%40$2', 
+        $tpl_output
+    );
+}
+
+// register the outputfilter
+$smarty->registerFilter("output", "protect_email");
+$smarty->display("index.tpl');
+
+```

docs/api/filters/postfilters.md

@@ -0,0 +1,33 @@
+# Postfilters
+
+Template postfilters are PHP functions that your templates are ran
+through *after they are compiled*.
+
+Smarty will
+pass the compiled template code as the first argument, and expect the
+function to return the result of the processing, which must also be valid PHP code.
+
+Prefilters can be either added as part of an [Extension](../extending/extensions.md) or
+registered as shown below.
+
+
+```php
+<?php
+
+function add_header_comment($tpl_source, \Smarty\Template\ $template)
+{
+    return "<?php echo \"<!-- Created by Smarty! -->\n\"; ?>\n".$tpl_source;
+}
+
+// register the postfilter
+$smarty->registerFilter('post', 'add_header_comment');
+$smarty->display('index.tpl');
+```
+
+The postfilter above will make the compiled Smarty template `index.tpl`
+look like:
+
+```smarty
+<!-- Created by Smarty! -->
+{* rest of template content... *}
+```

docs/api/filters/prefilters.md

@@ -0,0 +1,26 @@
+# Prefilters
+
+Template prefilters are PHP functions that your templates are ran
+through *before they are compiled*. This is good for preprocessing your
+templates to remove unwanted comments, keeping an eye on what people are
+putting in their templates, etc.
+
+Smarty will pass the template source code as the first argument, and
+expect the function to return the resulting template source code.
+
+Prefilters can be either added as part of an [Extension](../extending/extensions.md) or
+registered as shown below.
+
+This will remove all the html comments in the template source:
+```php
+<?php
+
+function remove_dw_comments($tpl_source, \Smarty\Template\ $template)
+{
+    return preg_replace("/<!--#.*-->/U",'',$tpl_source);
+}
+
+// register the prefilter
+$smarty->registerFilter('pre', 'remove_dw_comments');
+$smarty->display('index.tpl');
+```

docs/api/inheritance.md

@@ -0,0 +1,130 @@
+# Template Inheritance
+
+Inheritance allows you to define base templates that can
+be extended by child templates. Extending means that the child template
+can override all or some of the named block areas in the base template.
+
+When you render the child template, the result will as if you rendered
+the base template, with only the block(s) that you have overridden in the 
+child templates differing.
+
+-   The inheritance tree can be as deep as you want, meaning you can
+    extend a file that extends another one that extends another one and
+    so on.
+
+-   The child templates can not define any content besides what's
+    inside [`{block}`](../designers/language-builtin-functions/language-function-block.md) tags they override.
+    Anything outside of [`{block}`](../designers/language-builtin-functions/language-function-block.md) tags will
+    be removed.
+
+-   Template inheritance is a compile time process which creates a
+    single compiled template file. Compared to corresponding solutions
+    based on subtemplates included with the
+    [`{include}`](../designers/language-builtin-functions/language-function-include.md) tag it does have much
+    better performance when rendering.
+
+## Basic inheritance
+
+First, create a base template with one or more [blocks](../designers/language-builtin-functions/language-function-block.md). 
+Then, create a child template. The child template 
+must have an [{extends} tag](../designers/language-builtin-functions/language-function-extends.md) on its first line.
+
+The child template can redefine one or more blocks defined in the base template.
+
+See below for a simple example.
+
+layout.tpl (base)
+
+```smarty
+<html>
+    <head>
+      <title>{block name=title}Default Page Title{/block}</title>
+      {block name=head}{/block}
+    </head>
+    <body>
+        {block name=body}{/block}
+    </body>
+</html>
+```
+
+
+myproject.tpl (child)
+
+```smarty
+{extends file='layout.tpl'}
+{block name=head}
+  <link href="/css/mypage.css" rel="stylesheet" type="text/css"/>
+  <script src="/js/mypage.js"></script>
+{/block}
+```
+
+mypage.tpl (grandchild)
+
+```smarty
+{extends file='myproject.tpl'}
+{block name=title}My Page Title{/block}
+{block name=head}
+  <link href="/css/mypage.css" rel="stylesheet" type="text/css"/>
+  <script src="/js/mypage.js"></script>
+{/block}
+{block name=body}My HTML Page Body goes here{/block}
+```
+
+
+To render the above, you would use:
+
+```php
+<?php
+$smarty->display('mypage.tpl');
+```
+
+The resulting output is:
+
+```html
+<html>
+    <head>
+      <title>My Page Title</title>
+      <link href="/css/mypage.css" rel="stylesheet" type="text/css"/>
+      <script src="/js/mypage.js"></script>
+    </head>
+    <body>
+     My HTML Page Body goes here
+    </body>
+</html>
+```
+
+> **Note**
+>
+> When [compile-check](./configuring.md#disabling-compile-check) is enabled, all files 
+> in the inheritance tree
+> are checked for modifications upon each invocation. You may want to
+> disable compile-check on production servers for this reason.
+
+> **Note**
+>
+> If you have a subtemplate which is included with
+> [`{include}`](../designers/language-builtin-functions/language-function-include.md) and it contains
+> [`{block}`](../designers/language-builtin-functions/language-function-block.md) areas it works only if the
+> [`{include}`](../designers/language-builtin-functions/language-function-include.md) itself is called from within
+> a surrounding [`{block}`](../designers/language-builtin-functions/language-function-block.md). In the final
+> parent template you may need a dummy
+> [`{block}`](../designers/language-builtin-functions/language-function-block.md) for it.
+
+
+## Using append and prepend
+The content of [`{block}`](../designers/language-builtin-functions/language-function-block.md) tags from child
+and parent templates can be merged by the `append` or `prepend`
+[`{block}`](../designers/language-builtin-functions/language-function-block.md) tag option flags and
+`{$smarty.block.parent}` or `{$smarty.block.child}` placeholders.
+
+## Extends resource type
+Instead of using [`{extends}`](../designers/language-builtin-functions/language-function-extends.md) tags in the
+template files you can define the inheritance tree in your PHP script by
+using the [`extends:` resource](resources.md#the-extends-resource) type.
+
+The code below will return same result as the example above.
+
+```php
+<?php
+$smarty->display('extends:layout.tpl|myproject.tpl|mypage.tpl'); 
+```

docs/api/rendering.md

@@ -0,0 +1,86 @@
+# Rendering templates
+
+## Fetching or rendering templates directly
+As explained in [basics](basics.md), you can use `$smarty->fetch()` or `$smarty->display()`
+to render a template directly.
+
+```php
+<?php
+
+use Smarty\Smarty;
+$smarty = new Smarty();
+
+$smarty->display('homepage.tpl');
+
+// or
+
+$output = $smarty->fetch('homepage.tpl');
+```
+
+When you use `display()`, Smarty renders the template to the standard output stream.
+`fetch()` returns the output instead of echoing it.
+
+The example above uses simple filenames to load the template. Smarty also supports
+[loading templates from resources](resources.md).
+
+## Creating a template object
+You can also create a template object which later can be prepared first,
+and rendered later. This can be useful, for example if you plan to re-use several 
+templates.
+
+```php
+<?php
+use Smarty\Smarty;
+$smarty = new Smarty;
+
+// create template object with its private variable scope
+$tpl = $smarty->createTemplate('index.tpl');
+
+// assign a variable (available only to this template)
+$tpl->assign('title', 'My Homepage!');
+
+// display the template
+$tpl->display();
+```
+
+More on assigning variables in [using data in templates](variables/assigning.md).
+
+
+## Testing if a template exists
+You can use `templateExists()` to check whether a template exists before you attempt to use it.
+
+It accepts either a path to the template on the filesystem or a
+resource string specifying the template.
+
+This example uses `$_GET['page']` to
+[`{include}`](../designers/language-builtin-functions/language-function-include.md) a content template. If the
+template does not exist then an error page is displayed instead. First, 
+the `page_container.tpl`
+
+```smarty
+<html>
+    <head>
+        <title>{$title|escape}</title>
+    </head>
+    <body>
+        {* include middle content page *}
+        {include file=$content_template}
+    </body>
+</html>
+```
+
+And the php script:
+
+```php
+<?php
+
+// set the filename eg index.inc.tpl
+$mid_template = $_GET['page'].'.inc.tpl';
+
+if (!$smarty->templateExists($mid_template)){
+    $mid_template = 'page_not_found.tpl';
+}
+$smarty->assign('content_template', $mid_template);
+
+$smarty->display('page_container.tpl');
+```

docs/api/resources.md

@@ -0,0 +1,322 @@
+# Template resources
+
+## The filesystem resource
+
+So far in our examples, we have used simple filenames or paths when loading a template.
+
+For example, to load a template file called `homepage.tpl`, from the filesystem, you could write:
+```php
+<?php
+
+use Smarty\Smarty;
+$smarty = new Smarty();
+
+$smarty->display('homepage.tpl');
+```
+
+The filesystem is the default resource. Templates, however, may come 
+from a variety of sources. When you render a template, or
+when you include a template from within another template, you supply a
+resource type, followed by `:` and the appropriate path and template name.
+
+If a resource is not explicitly given, the default resource type is assumed.
+The resource type for the filesystem is `file`, which means that the previous example
+can be rewritten as follows:
+```php
+<?php
+
+use Smarty\Smarty;
+$smarty = new Smarty();
+
+$smarty->display('file:homepage.tpl');
+```
+
+The file resource pulls templates source files from the directories
+specified using `Smarty::setTemplateDir()` (see [Configuring Smarty](configuring.md)).
+
+`setTemplateDir` accepts a single path, but can also ben called with an array of paths. 
+In that case, the list of directories is traversed in the order they appear in the array. The
+first template found is the one to process.
+
+### Templates from a specific directory
+
+Smarty 3.1 introduced the bracket-syntax for specifying an element from
+`Smarty::setTemplateDir()`. This allows websites
+employing multiple sets of templates better control over which template
+to access.
+
+The bracket-syntax can be used as follows:
+```php
+<?php
+
+// setup template directories
+$smarty->setTemplateDir([
+    './templates',            // element: 0, index: 0
+    './templates_2',          // element: 1, index: 1
+    '10' => 'templates_10',   // element: 2, index: '10'
+    'foo' => 'templates_foo', // element: 3, index: 'foo'
+]);
+
+/*
+  assume the template structure
+  ./templates/foo.tpl
+  ./templates_2/foo.tpl
+  ./templates_2/bar.tpl
+  ./templates_10/foo.tpl
+  ./templates_10/bar.tpl
+  ./templates_foo/foo.tpl
+*/
+
+// regular access
+$smarty->display('file:foo.tpl'); 
+// will load ./templates/foo.tpl
+
+// using numeric index
+$smarty->display('file:[1]foo.tpl'); 
+// will load ./templates_2/foo.tpl
+
+// using numeric string index
+$smarty->display('file:[10]foo.tpl'); 
+// will load ./templates_10/foo.tpl
+
+// using string index
+$smarty->display('file:[foo]foo.tpl'); 
+// will load ./templates_foo/foo.tpl
+
+// using "unknown" numeric index (using element number)
+$smarty->display('file:[2]foo.tpl'); 
+// will load ./templates_10/foo.tpl
+```
+
+And, from within a Smarty template:
+
+```smarty
+{include file="file:foo.tpl"}
+{* will load ./templates/foo.tpl *}
+
+{include file="file:[1]foo.tpl"}
+{* will load ./templates_2/foo.tpl *}
+
+{include file="file:[foo]foo.tpl"}
+{* will load ./templates_foo/foo.tpl *}
+```
+
+### Using absolute paths
+
+Templates outside the specified template directories 
+require the `file:` template resource type, followed by the absolute
+path to the template (with leading slash).
+
+```php
+<?php
+$smarty->display('file:/export/templates/index.tpl');
+$smarty->display('file:/path/to/my/templates/menu.tpl');
+````
+
+And from within a Smarty template:
+```smarty
+{include file='file:/usr/local/share/templates/navigation.tpl'}
+```
+
+> **Note**
+>
+> With [`Security`](security.md) enabled, access to
+> templates outside of the specified templates directories is
+> not allowed unless you whitelist those directories.
+
+### Windows file paths 
+If you are running on Windows, file paths usually include a drive
+letter (such as `C:`) at the beginning of the pathname. Be sure to use `file:` in
+the path to avoid namespace conflicts and get the desired results.
+```php
+<?php
+$smarty->display('file:C:/export/templates/index.tpl');
+$smarty->display('file:F:/path/to/my/templates/menu.tpl');
+```
+
+And from within Smarty template:
+```smarty
+{include file='file:D:/usr/local/share/templates/navigation.tpl'}
+```
+
+### Handling missing templates
+If the file resource cannot find the requested template, it will check if there is
+a default template handler to call. By default, there is none, and Smarty will return an error,
+but you can register a default template handler calling `Smarty::registerDefaultTemplateHandler`
+with any [callable](https://www.php.net/manual/en/language.types.callable.php).
+
+```php
+<?php
+
+$smarty->registerDefaultTemplateHandler([$this, 'handleMissingTemplate']);
+
+// ...
+
+public function handleMissingTemplate($type, $name, &$content, &$modified, Smarty $smarty) {
+    if (/* ... */) {
+        // return corrected filepath
+        return "/tmp/some/foobar.tpl";
+    } elseif (/* ... */) {
+        // return a template directly
+        $content = "the template source";
+        $modified = time();
+        return true;
+    } else {
+        // tell smarty that we failed
+        return false;
+    }
+}
+
+```
+
+## The string and eval resources
+
+Smarty can render templates from a string by using the `string:` or
+`eval:` resource.
+
+-   The `string:` resource behaves much the same as a template file. The
+    template source is compiled from a string and stores the compiled
+    template code for later reuse. Each unique template string will
+    create a new compiled template file. If your template strings are
+    accessed frequently, this is a good choice. If you have frequently
+    changing template strings (or strings with low reuse value), the
+    `eval:` resource may be a better choice, as it doesn\'t save
+    compiled templates to disk.
+
+-   The `eval:` resource evaluates the template source every time a page
+    is rendered. This is a good choice for strings with low reuse value.
+    If the same string is accessed frequently, the `string:` resource
+    may be a better choice.
+
+> **Note**
+>
+> With a `string:` resource type, each unique string generates a
+> compiled file. Smarty cannot detect a string that has changed, and
+> therefore will generate a new compiled file for each unique string. It
+> is important to choose the correct resource so that you do not fill
+> your disk space with wasted compiled strings.
+
+```php
+<?php
+$smarty->assign('foo', 'value');
+$template_string = 'display {$foo} here';
+$smarty->display('string:' . $template_string); // compiles for later reuse
+$smarty->display('eval:' . $template_string); // compiles every time
+```
+From within a Smarty template:
+```smarty
+{include file="string:$template_string"} {* compiles for later reuse *}
+{include file="eval:$template_string"} {* compiles every time *}
+```
+
+Both `string:` and `eval:` resources may be encoded with
+[`urlencode()`](https://www.php.net/urlencode) or
+[`base64_encode()`](https://www.php.net/urlencode). This is not necessary
+for the usual use of `string:` and `eval:`, but is required when using
+either of them in conjunction with the [`extends resource`](#the-extends-resource).
+
+```php
+ <?php
+ $smarty->assign('foo','value');
+ $template_string_urlencode = urlencode('display {$foo} here');
+ $template_string_base64 = base64_encode('display {$foo} here');
+ $smarty->display('eval:urlencode:' . $template_string_urlencode); // will decode string using urldecode()
+ $smarty->display('eval:base64:' . $template_string_base64); // will decode string using base64_decode()
+```
+
+From within a Smarty template:
+```smarty
+ {include file="string:urlencode:$template_string_urlencode"} {* will decode string using urldecode() *}
+ {include file="eval:base64:$template_string_base64"} {* will decode string using base64_decode() *}
+```
+
+## The extends resource
+
+The `extends:` resource is used to define child/parent relationships. For details see section of
+[Template inheritance](inheritance.md).
+
+> **Note**
+>
+> Using the extends resource is usually not necessary. If you have a choice, it is normally more flexible and
+> intuitive to handle inheritance chains from within the templates using the [{extends} tag](inheritance.md).
+
+When `string:` and `eval:` templates are used, make sure they are properly url or base64 encoded. 
+
+The templates within an inheritance chain are not compiled separately. Only a single compiled template will be generated. 
+(If an `eval:` resource is found within an inheritance chain, its "don't save a compile file" property is superseded by 
+the `extends:` resource.)
+
+Example:
+```php
+<?php
+$smarty->display('extends:parent.tpl|child.tpl|grandchild.tpl'); 
+
+// inheritance from multiple template sources
+$smarty->display('extends:db:parent.tpl|file:child.tpl|grandchild.tpl|eval:{block name="fooBazVar_"}hello world{/block}'); 
+```
+
+## The stream resource
+
+Smarty allow you to use [PHP streams](https://www.php.net/manual/en/function.stream-wrapper-register.php) 
+as a template resource. Smarty will first look for a registered template resource. If nothing is
+found, it will check if a PHP stream is available.  If a stream is available, Smarty will use it 
+to fetch the template.
+
+For example, 
+```php
+<?php
+stream_wrapper_register('myresource', MyResourceStream::class);
+$smarty->display('myresource:bar.tpl');
+```
+
+Or, from within a template:
+```smarty
+ {include file="myresource:bar.tpl"}
+```
+
+## Adding your own resource type
+You can create a class that extends `Smarty\Resource\CustomPlugin` to add your own resource type, 
+for example to load template from a database.
+
+For example:
+```php
+<?php
+class HelloWorldResource extends Smarty\Resource\CustomPlugin {
+
+    protected function fetch($name, &$source, &$mtime) {
+        $source = '{$x="hello world"}{$x}'; // load your template here based on $name
+        $mtime = time();
+    }
+
+}
+
+// ..
+
+$smarty->registerResource('helloworld', new HelloWorldResource());
+```
+
+If a Resource's templates should not be run through the Smarty
+compiler, the Custom Resource may extend `\Smarty\Resource\UncompiledPlugin`.
+The Resource Handler must then implement the function
+`renderUncompiled(\Smarty\Template $_template)`. `$_template` is
+a reference to the current template and contains all assigned variables
+which the implementor can access via
+`$_template->getSmarty()->getTemplateVars()`. These Resources simply echo
+their rendered content to the output stream. The rendered output will be
+output-cached if the Smarty instance was configured accordingly. See
+`src/Resource/PhpPlugin.php` for an example.
+
+If the Resource's compiled templates should not be cached on disk, the
+Custom Resource may extend `\Smarty\Resource\RecompiledPlugin`. These Resources
+are compiled every time they are accessed. This may be an expensive
+overhead. See `src/Resource/StringEval.php` for an
+example.
+
+## Changing the default resource type
+The default resource type is `file`. If you want to change it, use `Smarty::setDefaultResourceType`.
+
+The following example will change the default resource type to `mysql`:
+```php
+<?php
+$smarty->setDefaultResourceType('mysql');
+```

docs/api/security.md

@@ -0,0 +1,119 @@
+# Security
+
+Security is good for situations when you have untrusted parties editing
+the templates, and you want to reduce the risk of system
+security compromises through the template language.
+
+The settings of the security policy are defined by overriding public properties of an
+instance of the \Smarty\Security class. These are the possible settings:
+
+- `$secure_dir` is an array of template directories that are
+    considered secure. A directory configured using `$smarty->setTemplateDir()` is
+    considered secure implicitly. The default is an empty array.
+- `$trusted_uri` is an array of regular expressions matching URIs that
+  are considered trusted. This security directive is used by
+  [`{fetch}`](../designers/language-custom-functions/language-function-fetch.md) and
+  [`{html_image}`](../designers/language-custom-functions/language-function-html-image.md). URIs passed to
+  these functions are reduced to `{$PROTOCOL}://{$HOSTNAME}` to allow
+  simple regular expressions (without having to deal with edge cases
+  like authentication-tokens).
+
+  The expression `'#https?://.*smarty.net$#i'` would allow accessing
+  the following URIs:
+
+    -   `http://smarty.net/foo`
+    -   `http://smarty.net/foo`
+    -   `http://www.smarty.net/foo`
+    -   `http://smarty.net/foo`
+    -   `https://foo.bar.www.smarty.net/foo/bla?blubb=1`
+
+  but deny access to these URIs:
+
+    -   `http://smarty.com/foo` (not matching top-level domain \"com\")
+    -   `ftp://www.smarty.net/foo` (not matching protocol \"ftp\")
+    -   `http://www.smarty.net.otherdomain.com/foo` (not matching end of
+        domain \"smarty.net\")
+
+-   `$static_classes` is an array of classes that are considered
+    trusted. The default is an empty array which allows access to all
+    static classes. To disable access to all static classes set
+    $static_classes = null.
+
+-   `$streams` is an array of streams that are considered trusted and
+    can be used from within template. To disable access to all streams
+    set $streams = null. An empty array ( $streams = [] ) will
+    allow all streams. The default is array('file').
+
+-   `$allowed_modifiers` is an array of (registered / autoloaded)
+    modifiers that should be accessible to the template. If this array
+    is non-empty, only the herein listed modifiers may be used. This is
+    a whitelist.
+
+-   `$disabled_modifiers` is an array of (registered / autoloaded)
+    modifiers that may not be accessible to the template.
+
+-   `$allowed_tags` is a boolean flag which controls if constants can
+    function-, block and filter plugins that should be accessible to the
+    template. If this array is non-empty, only the herein listed
+    modifiers may be used. This is a whitelist.
+
+-   `$disabled_tags` is an array of (registered / autoloaded) function-,
+    block and filter plugins that may not be accessible to the template.
+
+-   `$allow_constants` is a boolean flag which controls if constants can
+    be accessed by the template. The default is "true".
+
+-   `$allow_super_globals` is a boolean flag which controls if the PHP
+    super globals can be accessed by the template. The default is
+    "true".
+
+If security is enabled, no private methods, functions or properties of
+static classes or assigned objects can be accessed (beginning with
+'_') by the template.
+
+To customize the security policy settings you can extend the
+\Smarty\Security class or create an instance of it.
+
+```php
+<?php
+
+use Smarty\Smarty;
+
+class My_Security_Policy extends \Smarty\Security {
+  public $allow_constants = false;
+}
+
+$smarty = new Smarty();
+
+$smarty->enableSecurity('My_Security_Policy');
+```
+
+```php
+<?php
+
+use Smarty\Smarty;
+
+$smarty = new Smarty();
+
+$my_security_policy = new \Smarty\Security($smarty);
+$my_security_policy->allow_constants = false;
+
+$smarty->enableSecurity($my_security_policy);
+```
+
+```php
+<?php
+
+use Smarty\Smarty;
+
+$smarty = new Smarty();
+
+// enable default security
+$smarty->enableSecurity();
+```
+
+> **Note**
+>
+> Most security policy settings are only checked when the template gets
+> compiled. For that reason you should delete all cached and compiled
+> template files when you change your security settings.

docs/api/variables/assigning.md

@@ -0,0 +1,139 @@
+# Assigning variables
+
+Templates start to become really useful once you know how to use variables.
+
+## Basic assigning
+Let's revisit the example from the [basics section](../basics.md). The following script assigns a value to 
+the 'companyName' variable and renders the template:
+
+```php
+<?php
+
+use Smarty\Smarty;
+$smarty = new Smarty();
+
+$smarty->assign('companyName', 'AC & ME Corp.');
+
+$smarty->display('footer.tpl');
+```
+
+footer.tpl:
+```smarty
+<small>Copyright {$companyName|escape}</small>
+```
+
+Smarty will apply the [escape modifier](../../designers/language-modifiers/language-modifier-escape.md)
+to the value assigned to the variable
+`companyName` and replace `{$companyName|escape}` with the result.
+
+```html
+<small>Copyright AC &amp; ME Corp.</small>
+```
+
+Using `$smarty->assign()` is the most common way of assigning data to templates, but there are several other methods.
+
+## Appending data to an existing variable
+Using `append()`, you can add data to an existing variable, usually an array.
+
+If you append to a string value, it is converted to an array value and
+then appended to. You can explicitly pass name/value pairs, or
+associative arrays containing the name/value pairs. If you pass the
+optional third parameter of TRUE, the value will be merged with the
+current array instead of appended.
+
+Examples:
+
+```php
+<?php
+// This is effectively the same as assign()
+$smarty->append('foo', 'Fred');
+// After this line, foo will now be seen as an array in the template
+$smarty->append('foo', 'Albert');
+
+$array = [1 => 'one', 2 => 'two'];
+$smarty->append('X', $array);
+$array2 = [3 => 'three', 4 => 'four'];
+// The following line will add a second element to the X array
+$smarty->append('X', $array2);
+
+// passing an associative array
+$smarty->append(['city' => 'Lincoln', 'state' => 'Nebraska']);
+```
+
+## Assigning to template objects
+When you use a template objects, as explained in [rendering a template](../rendering.md#creating-a-template-object),
+you can assign data to the template objects directly instead of assigning it to Smarty. This way, you can use different
+sets of data for different templates.
+
+For example:
+```php
+<?php
+
+use Smarty\Smarty;
+$smarty = new Smarty();
+
+$tplBlue = $smarty->createTemplate('blue.tpl');
+$tplBlue->assign('name', 'The one');
+$tplBlue->display();
+
+$tplRed = $smarty->createTemplate('red.tpl');
+$tplRed->assign('name', 'Neo');
+$tplRed->display();
+```
+
+## Using data objects
+For more complex use cases, Smarty supports the concept of data objects.
+Data objects are containers to hold data. Data objects can be attached to templates when creating them.
+This allows for fine-grained re-use of data.
+
+For example:
+```php
+<?php
+use Smarty\Smarty;
+$smarty = new Smarty;
+
+// create a data object
+$data = $smarty->createData();
+
+// assign variable to the data object
+$data->assign('name', 'Neo');
+
+// create template object which will use variables from the data object
+$tpl = $smarty->createTemplate('index.tpl', $data);
+
+// display the template
+$tpl->display();
+```
+
+## Clearing assigned data
+When re-using templates, you may need to clear data assigned in a previous run. Use `clearAllAssign()` to 
+clear the values of all assigned variables on data objects, template objects or the Smarty object.
+
+Examples:
+```php
+<?php
+// assigning data to the Smarty object
+$smarty->assign('Name', 'Fred');
+// ...
+$smarty->clearAllAssign();
+
+// using a data object
+$data = $smarty->createData();
+$data->assign('name', 'Neo');
+// ...
+$data->clearAllAssign();
+
+// using a template
+$tplBlue = $smarty->createTemplate('blue.tpl');
+$tplBlue->assign('name', 'The one');
+// ...
+$tplBlue->clearAllAssign();
+```
+
+Note that there it's only useful to clear assigned data if you:
+
+1. repeatedly re-use templates, and
+2. the variables used may change on each repetition
+
+If your script simply runs once and then ends, or you always assign the same variables, clearing assigned data 
+is of no use.

docs/api/variables/config-files.md

@@ -0,0 +1,88 @@
+# Loading data from config files
+
+Instead of [assigning data to templates from PHP](assigning.md), you can also
+use a config file.
+
+## Example config file
+Config files are best suited to manage template settings
+from one file. One example is a multi-language application.
+Instead of writing multiple templates to support different languages, 
+you can write a single template file and load your language dependent strings
+from config files.
+
+Example `lang.en.ini`:
+```ini
+# global variables
+pageTitle = "Main Menu"
+
+[Customer]
+pageTitle = "Customer Info"
+
+[Login]
+pageTitle = "Login"
+focus = "username"
+Intro = """This is a value that spans more
+           than one line. you must enclose
+           it in triple quotes."""
+
+```
+
+Values of [config file variables](../../designers/language-variables/language-config-variables.md) can be in
+quotes, but not necessary. You can use either single or double quotes.
+If you have a value that spans more than one line, enclose the entire
+value with triple quotes \("""\). You can put comments into config
+files by any syntax that is not a valid config file syntax. We recommend
+using a `#` (hash) at the beginning of the line.
+
+The example config file above has two sections. Section names are
+enclosed in \[brackets\]. Section names can be arbitrary strings not
+containing `[` or `]` symbols. The variable at the top is a global
+variable. Global variables are always
+loaded from the config file. If a particular section is loaded, then the
+global variables and the variables from that section are also loaded. If
+a variable exists both as a global and in a section, the section
+variable is used.
+
+## Loading a config file
+
+Config files are loaded into templates with the built-in template
+function [`{config_load}`](../../designers/language-builtin-functions/language-function-config-load.md) or by calling
+`configLoad()` from PHP:
+
+```php
+<?php
+$smarty->configLoad('lang.en.ini');
+```
+
+Load a specific section with:
+
+```php
+<?php
+$smarty->configLoad('lang.en.ini', 'Customer');
+```
+
+Note that the global section will always be loaded.
+
+## Retrieving config variables in PHP
+
+
+## Loading from a resource
+Config files (or resources) are loaded by the same resource facilities
+as templates. That means that a config file can also be loaded from a db. See [resources](../resources.md)
+for more information.
+
+## Config overwrite
+If you name two variables the same within a section,
+the last one will be used unless you call:
+```php
+<?php
+$smarty->setConfigOverwrite(false);
+```
+When config overwrite is disabled, Smarty will create arrays of config file variables when it encounters
+multiple entries with the same name.
+
+See also [`{config_load}`](../../designers/language-builtin-functions/language-function-config-load.md),
+[`$default_config_handler_func`](../../programmers/api-variables/variable-default-config-handler-func.md),
+[`getConfigVars()`](../../programmers/api-functions/api-get-config-vars.md),
+[`clearConfig()`](../../programmers/api-functions/api-clear-config.md) and
+[`configLoad()`](../../programmers/api-functions/api-config-load.md)

docs/api/variables/objects.md

@@ -0,0 +1,106 @@
+# Objects
+
+Smarty allows access to PHP [objects](https://www.php.net/object) through
+the templates.
+
+> **Note**
+>
+> When you assign/register objects to templates, be sure that all
+> properties and methods accessed from the template are for presentation
+> purposes only. It is very easy to inject application logic through
+> objects, and this leads to poor designs that are difficult to manage.
+> See the Best Practices section of the Smarty website.
+
+There are two ways to access them.
+
+## Assign the object
+You can assign objects to a template and access them much like any other assigned variable.
+
+Example:
+```php
+<?php
+// the object
+
+class My_Object {
+    public function meth1($params, $smarty_obj) {
+        return 'this is my meth1';
+    }
+}
+
+// We can also assign objects. assign_by_ref when possible.
+$smarty->assign('myobj', new My_Object());
+
+$smarty->display('index.tpl');
+```
+
+And here's how to access your object in `index.tpl`:
+
+```smarty
+{$myobj->meth1('foo',$bar)}
+```
+
+
+
+## Register the object
+Registerd objects use a different template syntax. Also, a registered object 
+can be restricted to certain methods or
+properties. However, **a registered object cannot be looped over or
+assigned in arrays of objects**, etc.
+
+If security is enabled, no private methods or functions can be accessed
+(beginning with '_'). If a method and property of the same name exist,
+the method will be used.
+
+You can restrict the methods and properties that can be accessed by
+listing them in an array as the third registration parameter.
+
+By default, parameters passed to objects through the templates are
+passed the same way [custom tags](../../designers/language-custom-functions/index.md) get
+them. An associative array is passed as the first parameter, and the
+smarty object as the second. If you want the parameters passed one at a
+time for each argument like traditional object parameter passing, set
+the fourth registration parameter to FALSE.
+
+The optional fifth parameter has only effect with `format` being TRUE
+and contains a list of methods that should be treated as blocks. That
+means these methods have a closing tag in the template
+(`{foobar->meth2}...{/foobar->meth2}`) and the parameters to the methods
+have the same synopsis as the parameters for
+[`block tags`](../extending/block-tags.md): They get the four
+parameters `$params`, `$content`, `$smarty` and `&$repeat` and they also
+behave like block tags.
+
+```php
+<?php
+// the object
+
+class My_Object {
+    function meth1($params, $smarty_obj) {
+        return 'this is my meth1';
+    }
+}
+
+$myobj = new My_Object;
+
+// registering the object
+$smarty->registerObject('foobar', $myobj);
+
+// if we want to restrict access to certain methods or properties, list them
+$smarty->registerObject('foobar', $myobj, array('meth1','meth2','prop1'));
+
+// if you want to use the traditional object parameter format, pass a boolean of false
+$smarty->registerObject('foobar', $myobj, null, false);
+
+$smarty->display('index.tpl');
+```
+
+And here's how to access your objects in `index.tpl`:
+
+```smarty
+{* access our registered object *}
+{foobar->meth1 p1='foo' p2=$bar}
+
+{* you can also assign the output *}
+{foobar->meth1 p1='foo' p2=$bar assign='output'}
+the output was {$output}
+```

docs/api/variables/static-class-methods.md

@@ -0,0 +1,39 @@
+# Static Classes
+
+You can directly access static classes. The syntax is roughly the same as in
+PHP.
+
+> **Note**
+>
+> Direct access to PHP classes is not recommended. This ties the
+> underlying application code structure directly to the presentation,
+> and also complicates template syntax. It is recommended to register
+> plugins which insulate templates from PHP classes/objects. Use at your
+> own discretion.
+
+## Examples
+
+**class constant BAR**
+```smarty
+{assign var=foo value=myclass::BAR}
+```
+
+**method result**
+```smarty
+{assign var=foo value=myclass::method()} 
+```
+
+**method chaining**
+```smarty
+{assign var=foo value=myclass::method1()->method2}
+```
+
+**property bar of class myclass**
+```smarty
+{assign var=foo value=myclass::$bar} 
+```
+
+**using Smarty variable bar as class name**
+```smarty
+{assign var=foo value=$bar::method}
+```

docs/api/variables/streams.md

@@ -0,0 +1,16 @@
+# Streams
+
+You can also use streams to call variables. *{$foo:bar}* will use the
+*foo://bar* stream to get the template variable.
+
+Using a PHP stream for a template variable resource from within a
+template.
+
+```smarty
+{$foo:bar}
+```
+
+NB. Support for using streams to call variables is deprecated since Smarty v5.1 and will be removed
+in a future version. 
+
+See also [`Template Resources`](../resources.md)

docs/appendixes/tips.md

@@ -0,0 +1,273 @@
+# Tips & Tricks
+
+## Blank Variable Handling
+
+There may be times when you want to print a default value for an empty
+variable instead of printing nothing, such as printing ` ` so that
+html table backgrounds work properly. Many would use an
+[`{if}`](../designers/language-builtin-functions/language-function-if.md) statement to handle this, but there is a
+shorthand way with Smarty, using the
+[`default`](../designers/language-modifiers/language-modifier-default.md) variable modifier.
+
+> **Note**
+>
+> "Undefined variable" errors will show an E\_NOTICE if not disabled in
+> PHP's [`error_reporting()`](https://www.php.net/error_reporting) level or
+> Smarty's [`$error_reporting`](../programmers/api-variables/variable-error-reporting.md) property and
+> a variable had not been assigned to Smarty.
+
+```smarty
+
+    {* the long way *}
+    {if $title eq ''}
+        
+    {else}
+       {$title}
+    {/if}
+
+    {* the short way *}
+    {$title|default:' '}
+
+```        
+
+See also [`default`](../designers/language-modifiers/language-modifier-default.md) modifier and [default
+variable handling](#default-variable-handling).
+
+## Default Variable Handling
+
+If a variable is used frequently throughout your templates, applying the
+[`default`](../designers/language-modifiers/language-modifier-default.md) modifier every time it is
+mentioned can get a bit ugly. You can remedy this by assigning the
+variable its default value with the
+[`{assign}`](../designers/language-builtin-functions/language-function-assign.md) function.
+
+
+    {* do this somewhere at the top of your template *}
+    {assign var='title' value=$title|default:'no title'}
+
+    {* if $title was empty, it now contains the value "no title" when you use it *}
+    {$title}
+
+        
+
+See also [`default`](../designers/language-modifiers/language-modifier-default.md) modifier and [blank
+variable handling](#blank-variable-handling).
+
+## Passing variable title to header template
+
+When the majority of your templates use the same headers and footers, it
+is common to split those out into their own templates and
+[`{include}`](../designers/language-builtin-functions/language-function-include.md) them. But what if the header
+needs to have a different title, depending on what page you are coming
+from? You can pass the title to the header as an
+[attribute](../designers/language-basic-syntax/language-syntax-attributes.md) when it is included.
+
+`mainpage.tpl` - When the main page is drawn, the title of "Main Page"
+is passed to the `header.tpl`, and will subsequently be used as the
+title.
+
+```smarty
+
+{include file='header.tpl' title='Main Page'}
+{* template body goes here *}
+{include file='footer.tpl'}
+
+```
+
+`archives.tpl` - When the archives page is drawn, the title will be
+"Archives". Notice in the archive example, we are using a variable from
+the `archives_page.conf` file instead of a hard coded variable.
+
+```smarty
+
+{config_load file='archive_page.conf'}
+
+{include file='header.tpl' title=#archivePageTitle#}
+{* template body goes here *}
+{include file='footer.tpl'}
+
+```
+        
+
+`header.tpl` - Notice that "Smarty News" is printed if the `$title`
+variable is not set, using the [`default`](../designers/language-modifiers/language-modifier-default.md)
+variable modifier.
+
+```smarty
+
+<html>
+    <head>
+        <title>{$title|default:'Smarty News'}</title>
+    </head>
+<body>
+    
+```
+        
+
+`footer.tpl`
+
+```smarty
+
+    </body>
+</html>
+
+```
+        
+
+## Dates
+
+As a rule of thumb, always pass dates to Smarty as
+[timestamps](https://www.php.net/time). This allows template designers to
+use the [`date_format`](../designers/language-modifiers/language-modifier-date-format.md) modifier for
+full control over date formatting, and also makes it easy to compare
+dates if necessary.
+
+```smarty
+{$startDate|date_format}
+```
+        
+
+This will output:
+
+```
+Jan 4, 2009
+```
+
+```smarty
+
+{$startDate|date_format:"%Y/%m/%d"}
+
+```
+        
+
+This will output:
+
+```
+2009/01/04
+```
+
+Dates can be compared in the template by timestamps with:
+
+```smarty
+
+{if $order_date < $invoice_date}
+   ...do something..
+{/if}
+
+```        
+
+When using [`{html_select_date}`](../designers/language-custom-functions/language-function-html-select-date.md)
+in a template, the programmer will most likely want to convert the
+output from the form back into timestamp format. Here is a function to
+help you with that.
+
+```php
+
+<?php
+
+// this assumes your form elements are named
+// startDate_Day, startDate_Month, startDate_Year
+
+$startDate = makeTimeStamp($startDate_Year, $startDate_Month, $startDate_Day);
+
+function makeTimeStamp($year='', $month='', $day='')
+{
+   if(empty($year)) {
+       $year = strftime('%Y');
+   }
+   if(empty($month)) {
+       $month = strftime('%m');
+   }
+   if(empty($day)) {
+       $day = strftime('%d');
+   }
+
+   return mktime(0, 0, 0, $month, $day, $year);
+}
+
+```
+    
+
+See also [`{html_select_date}`](../designers/language-custom-functions/language-function-html-select-date.md),
+[`{html_select_time}`](../designers/language-custom-functions/language-function-html-select-time.md),
+[`date_format`](../designers/language-modifiers/language-modifier-date-format.md) and
+[`$smarty.now`](../designers/language-variables/language-variables-smarty.md#smarty-now),
+
+## Componentized Templates
+
+Traditionally, programming templates into your applications goes as
+follows: First, you accumulate your variables within your PHP
+application, (maybe with database queries.) Then, you instantiate your
+Smarty object, [`assign()`](../programmers/api-functions/api-assign.md) the variables and
+[`display()`](../programmers/api-functions/api-display.md) the template. So lets say for example we
+have a stock ticker on our template. We would collect the stock data in
+our application, then assign these variables in the template and display
+it. Now wouldn't it be nice if you could add this stock ticker to any
+application by merely including the template, and not worry about
+fetching the data up front?
+
+You can do this by writing a custom plugin for fetching the content and
+assigning it to a template variable.
+
+`function.load_ticker.php`
+
+```php
+
+<?php
+
+// setup our function for fetching stock data
+function fetch_ticker($symbol)
+{
+   // put logic here that fetches $ticker_info
+   // from some ticker resource
+   return $ticker_info;
+}
+
+function smarty_function_load_ticker($params, $smarty)
+{
+   // call the function
+   $ticker_info = fetch_ticker($params['symbol']);
+
+   // assign template variable
+   $smarty->assign($params['assign'], $ticker_info);
+}
+
+```
+
+`index.tpl`
+
+```smarty
+
+{load_ticker symbol='SMARTY' assign='ticker'}
+
+Stock Name: {$ticker.name} Stock Price: {$ticker.price}
+
+``` 
+
+See also: [`{include}`](../designers/language-builtin-functions/language-function-include.md).
+
+## Obfuscating E-mail Addresses
+
+Do you ever wonder how your email address gets on so many spam mailing
+lists? One way spammers collect email addresses is from web pages. To
+help combat this problem, you can make your email address show up in
+scrambled javascript in the HTML source, yet it it will look and work
+correctly in the browser. This is done with the
+[`{mailto}`](../designers/language-custom-functions/language-function-mailto.md) plugin.
+
+```smarty
+
+<div id="contact">Send inquiries to
+{mailto address=$EmailAddress encode='javascript' subject='Hello'}
+</div>
+
+```        
+
+> **Note**
+>
+> This method isn\'t 100% foolproof. A spammer could conceivably program
+> his e-mail collector to decode these values, but not likely\....
+> hopefully..yet \... wheres that quantum computer :-?.
+
+See also [`escape`](../designers/language-modifiers/language-modifier-escape.md) modifier and
+[`{mailto}`](../designers/language-custom-functions/language-function-mailto.md).

docs/appendixes/troubleshooting.md

@@ -0,0 +1,104 @@
+# Troubleshooting
+
+## Smarty/PHP errors
+
+Smarty can catch many errors such as missing tag attributes or malformed
+variable names. If this happens, you will see an error similar to the
+following:
+
+```
+Warning: Smarty: [in index.tpl line 4]: syntax error: unknown tag - '%blah'
+       in /path/to/smarty/Smarty.class.php on line 1041
+
+Fatal error: Smarty: [in index.tpl line 28]: syntax error: missing section name
+       in /path/to/smarty/Smarty.class.php on line 1041
+```
+        
+
+Smarty shows you the template name, the line number and the error. After
+that, the error consists of the actual line number in the Smarty class
+that the error occurred.
+
+There are certain errors that Smarty cannot catch, such as missing close
+tags. These types of errors usually end up in PHP compile-time parsing
+errors.
+
+`Parse error: parse error in /path/to/smarty/templates_c/index.tpl.php on line 75`
+    
+When you encounter a PHP parsing error, the error line number will
+correspond to the compiled PHP script, NOT the template itself. Usually
+you can look at the template and spot the syntax error. Here are some
+common things to look for: missing close tags for
+[`{if}{/if}`](../designers/language-builtin-functions/language-function-if.md) or
+[`{section}{/section}`](../designers/language-builtin-functions/language-function-section.md), 
+or syntax of logic within an `{if}` tag. If you can\'t find the error, you might have to
+open the compiled PHP file and go to the line number to figure out where
+the corresponding error is in the template.
+
+```
+Warning: Smarty error: unable to read resource: "index.tpl" in...
+```
+or
+```
+Warning: Smarty error: unable to read resource: "site.conf" in...
+```
+
+-   The [`$template_dir`](../programmers/api-variables/variable-template-dir.md) is incorrect, doesn't
+    exist or the file `index.tpl` is not in the `templates/` directory
+
+-   A [`{config_load}`](../designers/language-builtin-functions/language-function-config-load.md) function is
+    within a template (or [`configLoad()`](../programmers/api-functions/api-config-load.md) has been
+    called) and either [`$config_dir`](../programmers/api-variables/variable-config-dir.md) is
+    incorrect, does not exist or `site.conf` is not in the directory.
+
+```
+Fatal error: Smarty error: the $compile_dir 'templates_c' does not exist,
+or is not a directory...
+```
+
+-   Either the [`$compile_dir`](../programmers/api-variables/variable-compile-dir.md)is incorrectly
+    set, the directory does not exist, or `templates_c` is a file and
+    not a directory.
+
+```
+Fatal error: Smarty error: unable to write to $compile_dir '....
+```
+        
+
+-   The [`$compile_dir`](../programmers/api-variables/variable-compile-dir.md) is not writable by the
+    web server. See the bottom of the [installing
+    smarty](../getting-started.md#installation) page for more about permissions.
+
+```
+Fatal error: Smarty error: the $cache_dir 'cache' does not exist,
+or is not a directory. in /..
+```
+        
+-   This means that [`$caching`](../programmers/api-variables/variable-caching.md) is enabled and
+    either; the [`$cache_dir`](../programmers/api-variables/variable-cache-dir.md) is incorrectly set,
+    the directory does not exist, or `cache/` is a file and not a
+    directory.
+
+```
+Fatal error: Smarty error: unable to write to $cache_dir '/...
+```
+
+-   This means that [`$caching`](../programmers/api-variables/variable-caching.md) is enabled and the
+    [`$cache_dir`](../programmers/api-variables/variable-cache-dir.md) is not writable by the web
+    server. See the bottom of the [installing
+    smarty](../getting-started.md#installation) page for permissions.
+
+```
+Warning: filemtime(): stat failed for /path/to/smarty/cache/3ab50a623e65185c49bf17c63c90cc56070ea85c.one.tpl.php 
+in /path/to/smarty/libs/sysplugins/smarty_resource.php
+```
+
+-   This means that your application registered a custom error handler
+    (using [set_error_handler()](https://www.php.net/set_error_handler))
+    which is not respecting the given `$errno` as it should. If, for
+    whatever reason, this is the desired behaviour of your custom error
+    handler, please call
+    [`muteExpectedErrors()`](../programmers/api-functions/api-mute-expected-errors.md) after you've
+    registered your custom error handler.
+
+See also [debugging](../designers/chapter-debugging-console.md).

docs/designers/chapter-debugging-console.md

@@ -0,0 +1,39 @@
+# Debugging Console
+
+There is a debugging console included with Smarty. The console informs
+you of all the [included](./language-builtin-functions/language-function-include.md) templates,
+[assigned](../programmers/api-functions/api-assign.md) variables and
+[config](./language-variables/language-config-variables.md) file variables for the current
+invocation of the template. A template file named `debug.tpl` is
+included with the distribution of Smarty which controls the formatting
+of the console.
+
+Set [`$debugging`](../programmers/api-variables/variable-debugging.md) to TRUE in Smarty, and if needed
+set [`$debug_tpl`](../programmers/api-variables/variable-debug-template.md) to the template resource
+path to `debug.tpl`. When you load the page, a Javascript console window will pop
+up and give you the names of all the included templates and assigned
+variables for the current page.
+
+To see the available variables for a particular template, see the
+[`{debug}`](./language-builtin-functions/language-function-debug.md) template function. To disable the
+debugging console, set [`$debugging`](../programmers/api-variables/variable-debugging.md) to FALSE. You
+can also temporarily turn on the debugging console by putting
+`SMARTY_DEBUG` in the URL if you enable this option with
+[`$debugging_ctrl`](../programmers/api-variables/variable-debugging-ctrl.md).
+
+> **Note**
+>
+> The debugging console does not work when you use the
+> [`fetch()`](../programmers/api-functions/api-fetch.md) API, only when using
+> [`display()`](../programmers/api-functions/api-display.md). It is a set of javascript statements
+> added to the very bottom of the generated template. If you do not like
+> javascript, you can edit the `debug.tpl` template to format the output
+> however you like. Debug data is not cached and `debug.tpl` info is not
+> included in the output of the debug console.
+
+> **Note**
+>
+> The load times of each template and config file are in seconds, or
+> fractions thereof.
+
+See also [troubleshooting](../appendixes/troubleshooting.md).

docs/designers/config-files.md

@@ -0,0 +1,74 @@
+# Config Files
+
+Config files are handy for designers to manage global template variables
+from one file. One example is template colors. Normally if you wanted to
+change the color scheme of an application, you would have to go through
+each and every template file and change the colors. With a config file,
+the colors can be kept in one place, and only one file needs to be
+updated.
+
+```ini
+# global variables
+pageTitle = "Main Menu"
+bodyBgColor = #000000
+tableBgColor = #000000
+rowBgColor = #00ff00
+
+[Customer]
+pageTitle = "Customer Info"
+
+[Login]
+pageTitle = "Login"
+focus = "username"
+Intro = """This is a value that spans more
+           than one line. you must enclose
+           it in triple quotes."""
+
+# hidden section
+[.Database]
+host=my.example.com
+db=ADDRESSBOOK
+user=php-user
+pass=foobar
+```
+      
+
+Values of [config file variables](./language-variables/language-config-variables.md) can be in
+quotes, but not necessary. You can use either single or double quotes.
+If you have a value that spans more than one line, enclose the entire
+value with triple quotes \("""\). You can put comments into config
+files by any syntax that is not a valid config file syntax. We recommend
+using a `#` (hash) at the beginning of the line.
+
+The example config file above has two sections. Section names are
+enclosed in \[brackets\]. Section names can be arbitrary strings not
+containing `[` or `]` symbols. The four variables at the top are global
+variables, or variables not within a section. These variables are always
+loaded from the config file. If a particular section is loaded, then the
+global variables and the variables from that section are also loaded. If
+a variable exists both as a global and in a section, the section
+variable is used. If you name two variables the same within a section,
+the last one will be used unless
+[`$config_overwrite`](../programmers/api-variables/variable-config-overwrite.md) is disabled.
+
+Config files are loaded into templates with the built-in template
+function [`{config_load}`](./language-builtin-functions/language-function-config-load.md) or the API
+[`configLoad()`](../programmers/api-functions/api-config-load.md) function.
+
+You can hide variables or entire sections by prepending the variable
+name or section name with a period(.) eg `[.hidden]`. This is useful if
+your application reads the config files and gets sensitive data from
+them that the template engine does not need. If you have third parties
+doing template editing, you can be certain that they cannot read
+sensitive data from the config file by loading it into the template.
+
+Config files (or resources) are loaded by the same resource facilities
+as templates. That means that a config file can also be loaded from a db
+`$smarty->configLoad("db:my.conf")`.
+
+See also [`{config_load}`](./language-builtin-functions/language-function-config-load.md),
+[`$config_overwrite`](../programmers/api-variables/variable-config-overwrite.md),
+[`$default_config_handler_func`](../programmers/api-variables/variable-default-config-handler-func.md),
+[`getConfigVars()`](../programmers/api-functions/api-get-config-vars.md),
+[`clearConfig()`](../programmers/api-functions/api-clear-config.md) and
+[`configLoad()`](../programmers/api-functions/api-config-load.md)

docs/designers/language-basic-syntax/index.md

@@ -0,0 +1,33 @@
+# Basic Syntax
+
+A simple Smarty template could look like this:
+```smarty
+<h1>{$title|escape}</h1>
+<ul>
+    {foreach $cities as $city}
+        <li>{$city.name|escape} ({$city.population})</li>
+    {foreachelse}
+        <li>no cities found</li>        
+    {/foreach}
+</ul>
+```
+
+All Smarty template tags are enclosed within delimiters. By default
+these are `{` and `}`, but they can be
+[changed](../../designers/language-basic-syntax/language-escaping.md).
+
+For the examples in this manual, we will assume that you are using the
+default delimiters. In Smarty, all content outside of delimiters is
+displayed as static content, or unchanged. When Smarty encounters
+template tags, it attempts to interpret them, and displays the
+appropriate output in their place.
+
+The basic components of the Smarty syntax are:
+
+- [Comments](language-syntax-comments.md)
+- [Variables](language-syntax-variables.md)
+- [Operators](language-syntax-operators.md)
+- [Tags](language-syntax-tags.md)
+- [Attributes](language-syntax-attributes.md)
+- [Quotes](language-syntax-quotes.md)
+- [Escaping](language-escaping.md)

docs/designers/language-basic-syntax/language-escaping.md

@@ -0,0 +1,78 @@
+# Escaping Smarty parsing
+
+It is sometimes desirable or even necessary to have Smarty ignore
+sections it would otherwise parse. A classic example is embedding
+Javascript or CSS code in a template. The problem arises as those
+languages use the { and } characters which are also the default
+[delimiters](../language-builtin-functions/language-function-ldelim.md) for Smarty.
+
+> **Note**
+>
+> A good practice for avoiding escapement altogether is by separating
+> your Javascript/CSS into their own files and use standard HTML methods
+> to access them. This will also take advantage of browser script
+> caching. When you need to embed Smarty variables/functions into your
+> Javascript/CSS, then the following applies.
+
+In Smarty templates, the { and } braces will be ignored so long as they
+are surrounded by white space. This behavior can be disabled by setting
+the Smarty class variable [`$auto_literal`](../../programmers/api-variables/variable-auto-literal.md) to
+false.
+
+## Examples
+
+```smarty
+<script>
+   // the following braces are ignored by Smarty
+   // since they are surrounded by whitespace
+   function foobar {
+    alert('foobar!');
+   }
+   // this one will need literal escapement
+   {literal}
+    function bazzy {alert('foobar!');}
+   {/literal}
+</script>
+```  
+     
+[`{literal}..{/literal}`](../language-builtin-functions/language-function-literal.md) blocks are used
+for escaping blocks of template logic. You can also escape the braces
+individually with
+[`{ldelim}`, `{rdelim}`](../language-builtin-functions/language-function-ldelim.md) tags or
+[`{$smarty.ldelim}`,`{$smarty.rdelim}`](../language-variables/language-variables-smarty.md#smartyldelim-smartyrdelim-languagevariablessmartyldelim)
+variables.
+
+Smarty's default delimiters { and } cleanly represent presentational
+content. However, if another set of delimiters suit your needs better,
+you can change them with Smarty's
+`setLeftDelimiter()` and `setRightDelimiter()` methods.
+
+> **Note**
+>
+> Changing delimiters affects ALL template syntax and escapement. Be
+> sure to clear out cache and compiled files if you decide to change
+> them.
+
+```php
+<?php
+
+$smarty->setLeftDelimiter('<!--{');
+$smarty->setRightDelimiter('}-->');
+
+$smarty->assign('foo', 'bar');
+$smarty->assign('name', 'Albert');
+$smarty->display('example.tpl');
+```
+
+Where the template is:
+
+```smarty
+Welcome <!--{$name}--> to Smarty
+    <script>
+  var foo = <!--{$foo}-->;
+  function dosomething() {
+    alert("foo is " + foo);
+  }
+  dosomething();
+</script>
+```

docs/designers/language-basic-syntax/language-syntax-attributes.md

@@ -0,0 +1,49 @@
+# Attributes
+
+Most of the [tags](./language-syntax-tags.md) take attributes that
+specify or modify their behavior. Attributes to Smarty functions are
+much like HTML attributes. Static values don't have to be enclosed in
+quotes, but it is required for literal strings. Variables with or
+without modifiers may also be used, and should not be in quotes. You can
+even use PHP function results, plugin results and complex expressions.
+
+Some attributes require boolean values (TRUE or FALSE). These can be
+specified as `true` and `false`. If an attribute has no value assigned
+it gets the default boolean value of true.
+
+## Examples
+```smarty
+{include file="header.tpl"}
+
+{include file="header.tpl" nocache}  // is equivalent to nocache=true
+
+{include file="header.tpl" attrib_name="attrib value"}
+
+{include file=$includeFile}
+
+{include file=#includeFile# title="My Title"}
+
+{assign var=foo value={counter}}  // plugin result
+
+{assign var=foo value=substr($bar,2,5)}  // PHP function result
+
+{assign var=foo value=$bar|strlen}  // using modifier
+
+{assign var=foo value=$buh+$bar|strlen}  // more complex expression
+
+{html_select_date display_days=true}
+
+{mailto address="smarty@example.com"}
+
+<select name="company_id">
+  {html_options options=$companies selected=$company_id}
+</select>
+```
+      
+> **Note**
+>
+> Although Smarty can handle some very complex expressions and syntax,
+> it is a good rule of thumb to keep the template syntax minimal and
+> focused on presentation. If you find your template syntax getting too
+> complex, it may be a good idea to move the bits that do not deal
+> explicitly with presentation to PHP by way of plugins or modifiers.

docs/designers/language-basic-syntax/language-syntax-comments.md

@@ -0,0 +1,69 @@
+# Comments
+
+Template comments are surrounded by asterisks, and that is surrounded by
+the [delimiter](../../designers/language-basic-syntax/language-escaping.md) tags like so:
+
+## Examples
+
+```smarty
+{* this is a comment *}
+```
+
+Smarty comments are NOT displayed in the final output of the template,
+unlike `<!-- HTML comments -->`. These are useful for making internal
+notes in the templates which no one will see ;-)
+
+```smarty
+{* I am a Smarty comment, I don't exist in the compiled output  *}
+<html>
+    <head>
+     <title>{$title}</title>
+    </head>
+<body>
+
+    {* another single line smarty comment  *}
+    <!-- HTML comment that is sent to the browser -->
+
+    {* this multiline smarty
+       comment is
+       not sent to browser
+    *}
+
+    {*********************************************************
+    Multi line comment block with credits block
+      @ author:         bg@example.com
+      @ maintainer:     support@example.com
+      @ para:           var that sets block style
+      @ css:            the style output
+    **********************************************************}
+
+    {* The header file with the main logo and stuff  *}
+    {include file='header.tpl'}
+
+
+    {* Dev note:  the $includeFile var is assigned in foo.php script  *}
+    <!-- Displays main content block -->
+    {include file=$includeFile}
+
+    {* this <select> block is redundant *}
+    {*
+    <select name="company">
+      {html_options options=$vals selected=$selected_id}
+    </select>
+    *}
+
+    <!-- Show header from affiliate is disabled -->
+    {* $affiliate|upper *}
+
+    {* you cannot nest comments *}
+    {*
+    <select name="company">
+      {* <option value="0">-- none -- </option> *}
+      {html_options options=$vals selected=$selected_id}
+    </select>
+    *}
+
+    </body>
+</html>
+```
+      

docs/designers/language-basic-syntax/language-syntax-operators.md

@@ -0,0 +1,202 @@
+# Operators
+
+## Basic
+
+Various basic operators can be applied directly to variable values.
+
+## Examples
+```smarty
+{$foo + 1}
+
+{$foo * $bar}
+
+{$foo->bar - $bar[1] * $baz->foo->bar() -3 * 7}
+
+{if ($foo + $bar.test % $baz * 134232 + 10 + $b + 10)}
+    ...
+{/if}
+
+{$foo = $foo + $bar}
+```
+
+> **Note**
+>
+> Although Smarty can handle some very complex expressions and syntax,
+> it is a good rule of thumb to keep the template syntax minimal and
+> focused on presentation. If you find your template syntax getting too
+> complex, it may be a good idea to move the bits that do not deal
+> explicitly with presentation to PHP by way of plugins or modifiers.
+
+## List
+The following is a list of recognized operators, which must be
+separated from surrounding elements by spaces. Note that items listed in
+\[brackets\] are optional. PHP equivalents are shown where applicable.
+
+| Operator           | Alternates | Syntax Example       | Meaning                        | PHP Equivalent     |
+|--------------------|------------|----------------------|--------------------------------|--------------------|
+| ==                 | eq         | $a eq $b             | equals                         | ==                 |
+| !=                 | ne, neq    | $a neq $b            | not equals                     | !=                 |
+| >                  | gt         | $a gt $b             | greater than                   | >                  |
+| <                  | lt         | $a lt $b             | less than                      | <                  |
+| >=                 | gte, ge    | $a ge $b             | greater than or equal          | >=                 |
+| <=                 | lte, le    | $a le $b             | less than or equal             | <=                 |
+| ===                |            | $a === 0             | check for identity             | ===                |
+| !                  | not        | not $a               | negation (unary)               | !                  |
+| %                  | mod        | $a mod $b            | modulo                         | %                  |
+| is \[not\] div by  |            | $a is not div by 4   | divisible by                   | $a % $b == 0       |
+| is \[not\] even    |            | $a is not even       | \[not\] an even number (unary) | $a % 2 == 0        |
+| is \[not\] even by |            | $a is not even by $b | grouping level \[not\] even    | ($a / $b) % 2 == 0 |
+| is \[not\] odd     |            | $a is not odd        | \[not\] an odd number (unary)  | $a % 2 != 0        |
+| is \[not\] odd by  |            | $a is not odd by $b  | \[not\] an odd grouping        | ($a / $b) % 2 != 0 |
+| is in              |            | $a is in $b          | exists in array                | in_array($a, $b)   |
+| is \[not\] in      |            | $a is not in $b      | does not exist in array        | !in_array($a, $b)  |
+| matches            |            | $a matches $b       | regex pattern match            | preg_match($b, $a) |
+
+## Regex Matching Operator
+
+The `matches` operator allows you to test if a string matches a regular expression pattern.
+
+### Basic Usage
+
+```smarty
+{if "hello" matches "/^[a-z]+$/"}
+    String matches the pattern!
+{/if}
+
+{if $email matches "/^[^@]+@[^@]+\.[^@]+$/"}
+    Valid email format
+{else}
+    Invalid email format
+{/if}
+```
+
+### Using Variables
+
+```smarty
+{$pattern = '/^[a-zA-Z0-9]{8,}$/'}
+{if $password matches $pattern}
+    Password meets requirements
+{else}
+    Password must be at least 8 alphanumeric characters
+{/if}
+```
+
+### Pattern Modifiers
+
+The `matches` operator supports all standard PHP regex modifiers:
+
+```smarty
+{* Case insensitive matching *}
+{if "HELLO" matches "/hello/i"}
+    Matches (case insensitive)
+{/if}
+
+{* Multiline mode *}
+{if "line1\nline2" matches "/line2$/m"}
+    Matches in multiline mode
+{/if}
+
+{* Dot matches newlines *}
+{if "hello\nworld" matches "/hello.world/s"}
+    Matches with dotall modifier
+{/if}
+```
+
+### Complex Conditions
+
+The `matches` operator can be combined with other operators:
+
+```smarty
+{if $username matches "/^[a-z]+$/" && $username|length > 3}
+    Valid username
+{else}
+    Username must be lowercase letters and at least 4 characters
+{/if}
+
+{if $input matches "/^[0-9]+$/" || $input matches "/^[a-z]+$/"}
+    Input is either numeric or lowercase letters
+{else}
+    Invalid input format
+{/if}
+```
+
+### Practical Examples
+
+**Email Validation:**
+```smarty
+{if $email matches "/^[^@\s]+@[^@\s]+\.[^@\s]+$/"}
+    Valid email address
+{else}
+    Please enter a valid email address
+{/if}
+```
+
+**Password Strength:**
+```smarty
+{if $password matches "/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d).{8,}$/"}
+    Strong password
+{else}
+    Password must contain uppercase, lowercase, numbers and be at least 8 characters
+{/if}
+```
+
+**URL Validation:**
+```smarty
+{if $url matches "/^https?:\/\/(www\.)?[a-z0-9\-]+(\.[a-z]{2,})+/i"}
+    Valid URL format
+{else}
+    Please enter a valid URL
+{/if}
+```
+
+**Numeric Validation:**
+```smarty
+{if $input matches "/^[0-9]+$/"}
+    Valid numeric input
+{else}
+    Please enter numbers only
+{/if}
+```
+
+### Notes
+
+- The `matches` operator uses PHP's `preg_match()` function internally
+- Pattern delimiters must be valid regex delimiters (typically `/`)
+- Invalid patterns will cause PHP warnings but won't break template execution
+- For complex regex patterns, consider using variables for better readability
+
+## Ternary
+You can use the `?:` (or ternary) operator to test one expression and present the value
+of the second or third expression, based on the result of the test.
+
+In other words:
+```smarty
+{$test ? "OK" : "FAIL"}
+```
+will result in OK if `$test` is set to true, and in FAIL otherwise.
+
+There is also a shorthand `?:` operator:
+```smarty
+{$myVar ?: "empty"}
+```
+will result in 'empty' if `$myVar` is not set or set to something that evaluates to false, such as an empty string.
+If `$myVar` is set to something that evaluates to true, the value of `$myVar` is returned. So, the following will 
+return 'hello':
+```smarty
+{$myVar="hello"}
+{$myVar ?: "empty"}
+```
+
+## Testing for null
+If "something that evaluates to false" is to broad a test for you, you can use the `??` (or null coalescing) operator 
+to trigger only if the tested value is undefined or set to null.
+```smarty
+{$myVar ?? "empty"}
+```
+will result in 'empty' if `$myVar` is not set or set to null.
+If `$myVar` is set to something that evaluates to anything else, the value of `$myVar` is returned. So, the following will
+return an empty string (''):
+```smarty
+{$myVar=""}
+{$myVar ?: "this is not shown"}
+```

docs/designers/language-basic-syntax/language-syntax-quotes.md

@@ -0,0 +1,54 @@
+# Embedding Vars in Double Quotes
+
+-   Smarty will recognize [assigned](../../programmers/api-functions/api-assign.md)
+    [variables](./language-syntax-variables.md) embedded in "double
+    quotes" so long as the variable name contains only numbers, letters
+    and under_scores. See [naming](https://www.php.net/language.variables)
+    for more detail.
+
+-   With any other characters, for example a period(.) or
+    `$object->reference`, then the variable must be surrounded by `` `backticks` ``.
+
+-   In addition, Smarty does allow embedded Smarty tags in double-quoted
+    strings. This is useful if you want to include variables with
+    modifiers, plugin or PHP function results.
+
+## Examples
+```smarty
+{func var="test $foo test"}              // sees $foo
+{func var="test $foo_bar test"}          // sees $foo_bar
+{func var="test `$foo[0]` test"}         // sees $foo[0]
+{func var="test `$foo[bar]` test"}       // sees $foo[bar]
+{func var="test $foo.bar test"}          // sees $foo (not $foo.bar)
+{func var="test `$foo.bar` test"}        // sees $foo.bar
+{func var="test `$foo.bar` test"|escape} // modifiers outside quotes!
+{func var="test {$foo|escape} test"}     // modifiers inside quotes!
+{func var="test {time()} test"}          // PHP function result
+{func var="test {counter} test"}         // plugin result
+{func var="variable foo is {if !$foo}not {/if} defined"} // Smarty block function
+
+{* will replace $tpl_name with value *}
+{include file="subdir/$tpl_name.tpl"}
+
+{* does NOT replace $tpl_name *}
+{include file='subdir/$tpl_name.tpl'} // vars require double quotes!
+
+{* must have backticks as it contains a dot "." *}
+{cycle values="one,two,`$smarty.config.myval`"}
+
+{* must have backticks as it contains a dot "." *}
+{include file="`$module.contact`.tpl"}
+
+{* can use variable with dot syntax *}
+{include file="`$module.$view`.tpl"}
+```
+      
+> **Note**
+>
+> Although Smarty can handle some very complex expressions and syntax,
+> it is a good rule of thumb to keep the template syntax minimal and
+> focused on presentation. If you find your template syntax getting too
+> complex, it may be a good idea to move the bits that do not deal
+> explicitly with presentation to PHP by way of plugins or modifiers.
+
+See also [`escape`](../language-modifiers/language-modifier-escape.md).

docs/designers/language-basic-syntax/language-syntax-tags.md

@@ -0,0 +1,39 @@
+# Tags
+
+Every Smarty tag either prints a [variable](./language-syntax-variables.md) or
+invokes some sort of function. These are processed and displayed by
+enclosing the function and its [attributes](./language-syntax-attributes.md)
+within delimiters like so: `{funcname attr1="val1" attr2="val2"}`.
+
+## Examples
+
+```smarty
+{config_load file="colors.conf"}
+
+{include file="header.tpl"}
+
+{if $logged_in}
+    Welcome, <span style="color:{#fontColor#}">{$name}!</span>
+{else}
+    hi, {$name}
+{/if}
+
+{include file="footer.tpl"}
+```
+      
+-   Both [built-in functions](../language-builtin-functions/index.md) and [custom
+    functions](../language-custom-functions/index.md) have the same syntax within
+    templates.
+
+-   Built-in functions are the **inner** workings of Smarty, such as
+    [`{if}`](../language-builtin-functions/language-function-if.md),
+    [`{section}`](../language-builtin-functions/language-function-section.md) and
+    [`{strip}`](../language-builtin-functions/language-function-strip.md). There should be no need to
+    change or modify them.
+
+-   Custom tags are **additional** tags implemented via
+    [plugins](../../api/extending/introduction.md). They can be modified to your liking, or you can
+    create new ones. [`{html_options}`](../language-custom-functions/language-function-html-options.md)
+    is an example of a custom function.
+
+See also [`registerPlugin()`](../../programmers/api-functions/api-register-plugin.md)

docs/designers/language-basic-syntax/language-syntax-variables.md

@@ -0,0 +1,106 @@
+# Variables
+
+Template variables start with the $dollar sign. They can contain
+numbers, letters and underscores, much like a [PHP
+variable](https://www.php.net/language.variables). You can reference arrays
+by index numerically or non-numerically. Also reference object
+properties and methods.
+
+[Config file variables](../language-variables/language-config-variables.md) are an exception to
+the \$dollar syntax and are instead referenced with surrounding
+\#hashmarks\#, or via the [`$smarty.config`](../language-variables/language-variables-smarty.md#smartyconfig-languagevariablessmartyconfig) variable.
+
+## Examples
+
+```smarty
+{$foo}        <-- displaying a simple variable (non array/object)
+{$foo[4]}     <-- display the 5th element of a zero-indexed array
+{$foo.bar}    <-- display the "bar" key value of an array, similar to PHP $foo['bar']
+{$foo.$bar}   <-- display variable key value of an array, similar to PHP $foo[$bar]
+{$foo->bar}   <-- display the object property "bar"
+{$foo->bar()} <-- display the return value of object method "bar"
+{#foo#}       <-- display the config file variable "foo"
+{$smarty.config.foo} <-- synonym for {#foo#}
+{$foo[bar]}   <-- syntax only valid in a section loop, see {section}
+{assign var=foo value='baa'}{$foo} <--  displays "baa", see {assign}
+
+Many other combinations are allowed
+
+{$foo.bar.baz}
+{$foo.$bar.$baz}
+{$foo[4].baz}
+{$foo[4].$baz}
+{$foo.bar.baz[4]}
+{$foo->bar($baz,2,$bar)} <-- passing parameters
+{"foo"}       <-- static values are allowed
+
+{* display the server variable "SERVER_NAME" ($_SERVER['SERVER_NAME'])*}
+{$smarty.server.SERVER_NAME}
+
+Math and embedding tags:
+
+{$x+$y}                             // will output the sum of x and y.
+{assign var=foo value=$x+$y}        // in attributes 
+{$foo[$x+3]}                        // as array index
+{$foo={counter}+3}                  // tags within tags
+{$foo="this is message {counter}"}  // tags within double quoted strings
+
+Defining Arrays:
+
+{assign var=foo value=[1,2,3]}
+{assign var=foo value=['y'=>'yellow','b'=>'blue']}
+{assign var=foo value=[1,[9,8],3]}   // can be nested
+
+Short variable assignment:
+
+{$foo=$bar+2}
+{$foo = strlen($bar)}               // function in assignment
+{$foo = myfunct( ($x+$y)*3 )}       // as function parameter 
+{$foo.bar=1}                        // assign to specific array element
+{$foo.bar.baz=1}                    
+{$foo[]=1}                          // appending to an array
+
+Smarty "dot" syntax (note: embedded {} are used to address ambiguities):
+
+{$foo.a.b.c}        =>  $foo['a']['b']['c'] 
+{$foo.a.$b.c}       =>  $foo['a'][$b]['c']         // with variable index
+{$foo.a.{$b+4}.c}   =>  $foo['a'][$b+4]['c']       // with expression as index
+{$foo.a.{$b.c}}     =>  $foo['a'][$b['c']]         // with nested index
+
+PHP-like syntax, alternative to "dot" syntax:
+
+{$foo[1]}             // normal access
+{$foo['bar']}
+{$foo['bar'][1]}
+{$foo[$x+$x]}         // index may contain any expression
+{$foo[$bar[1]]}       // nested index
+{$foo[section_name]}  // smarty {section} access, not array access!
+
+Variable variables:
+
+$foo                     // normal variable
+$foo_{$bar}              // variable name containing other variable 
+$foo_{$x+$y}             // variable name containing expressions 
+$foo_{$bar}_buh_{$blar}  // variable name with multiple segments
+{$foo_{$x}}              // will output the variable $foo_1 if $x has a value of 1.
+
+Object chaining:
+
+{$object->method1($x)->method2($y)}
+
+```
+
+> **Note**
+>
+> Although Smarty can handle some very complex expressions and syntax,
+> it is a good rule of thumb to keep the template syntax minimal and
+> focused on presentation. If you find your template syntax getting too
+> complex, it may be a good idea to move the bits that do not deal
+> explicitly with presentation to PHP by way of plugins or modifiers.
+
+Request variables such as `$_GET`, `$_SESSION`, etc are available via
+the reserved [`$smarty`](../language-variables/language-variables-smarty.md) variable.
+
+See also [`$smarty`](../language-variables/language-variables-smarty.md), [config
+variables](../language-variables/language-config-variables.md)
+[`{assign}`](../language-builtin-functions/language-function-assign.md) and [`assign()`](../../programmers/api-functions/api-assign.md).

docs/designers/language-builtin-functions/index.md

@@ -0,0 +1,35 @@
+# Built-in Functions
+
+Smarty comes with several built-in functions. These built-in functions
+are the integral part of the smarty template engine. They are compiled
+into corresponding inline PHP code for maximum performance.
+
+You cannot create your own [custom tags](../language-custom-functions/index.md) with the same name; and you
+should not need to modify the built-in functions.
+
+A few of these functions have an `assign` attribute which collects the
+result the function to a named template variable instead of being
+output; much like the [`{assign}`](language-function-assign.md) function.
+
+- [{append}](language-function-append.md)
+- [{assign} or {$var=...}](language-function-assign.md)
+- [{block}](language-function-block.md)
+- [{call}](language-function-call.md)
+- [{capture}](language-function-capture.md)
+- [{config_load}](language-function-config-load.md)
+- [{debug}](language-function-debug.md)
+- [{extends}](language-function-extends.md)
+- [{for}](language-function-for.md)
+- [{foreach}, {foreachelse}](language-function-foreach.md)
+- [{function}](language-function-function.md)
+- [{if}, {elseif}, {else}](language-function-if.md)
+- [{include}](language-function-include.md)
+- [{insert}](language-function-insert.md)
+- [{ldelim}, {rdelim}](language-function-ldelim.md)
+- [{literal}](language-function-literal.md)
+- [{nocache}](language-function-nocache.md)
+- [{section}, {sectionelse}](language-function-section.md)
+- [{setfilter}](language-function-setfilter.md)
+- [{strip}](language-function-strip.md)
+- [{while}](language-function-while.md)
+

docs/designers/language-builtin-functions/language-function-append.md

@@ -0,0 +1,49 @@
+# {append}
+
+`{append}` is used for creating or appending template variable arrays
+**during the execution of a template**.
+
+## Attributes
+
+| Attribute | Required   | Description                                                                                        |
+|-----------|------------|----------------------------------------------------------------------------------------------------|
+| var       |            | The name of the variable being assigned                                                            |
+| value     |            | The value being assigned                                                                           |
+| index     | (optional) | The index for the new array element. If not specified the value is append to the end of the array. |
+| scope     | (optional) | The scope of the assigned variable: parent, root or global. Defaults to local if omitted.          |
+
+## Option Flags
+
+| Name    | Description                                         |
+|---------|-----------------------------------------------------|
+| nocache | Assigns the variable with the 'nocache' attribute   | 
+
+> **Note**
+>
+> Assignment of variables in-template is essentially placing application
+> logic into the presentation that may be better handled in PHP. Use at
+> your own discretion.
+
+## Examples
+
+```smarty
+{append var='name' value='Bob' index='first'}
+{append var='name' value='Meyer' index='last'}
+// or 
+{append 'name' 'Bob' index='first'} {* short-hand *}
+{append 'name' 'Meyer' index='last'} {* short-hand *}
+
+The first name is {$name.first}.<br>
+The last name is {$name.last}.
+```
+      
+The above example will output:
+
+
+    The first name is Bob.
+    The last name is Meyer.
+
+      
+
+See also [`append()`](#api.append) and
+[`getTemplateVars()`](#api.get.template.vars).

docs/designers/language-builtin-functions/language-function-assign.md

@@ -0,0 +1,148 @@
+# {assign}, {$var=...}
+
+`{assign}` or `{$var=...}` is used for assigning template variables **during the
+execution of a template**.
+
+## Attributes of the {assign} syntax
+| Attribute Name | Required   | Description                                                           |
+|----------------|------------|-----------------------------------------------------------------------|
+| var            |            | The name of the variable being assigned                               | 
+| value          |            | The value being assigned                                              |                             
+| scope          | (optional) | The scope of the assigned variable: 'parent','root' or 'global' | 
+
+## Attributes of the {$var=...} syntax
+| Attribute Name | Required   | Description                                                           |
+|----------------|------------|-----------------------------------------------------------------------|
+| scope          | (optional) | The scope of the assigned variable: 'parent','root' or 'global' | 
+
+## Option Flags
+| Name    | Description                                       |
+|---------|---------------------------------------------------|
+| nocache | Assigns the variable with the 'nocache' attribute |
+
+
+> **Note**
+>
+> Assignment of variables in-template is essentially placing application
+> logic into the presentation that may be better handled in PHP. Use at
+> your own discretion.
+
+## Examples
+
+```smarty
+{assign var="name" value="Bob"}  {* or *}
+{assign "name" "Bob"} {* short-hand, or *}
+{$name='Bob'}
+
+The value of $name is {$name}.
+```
+      
+
+The above example will output:
+
+```
+The value of $name is Bob.
+```
+
+
+```smarty
+{assign var="name" value="Bob" nocache}  {* or *}
+{assign "name" "Bob" nocache} {* short-hand, or *}
+{$name='Bob' nocache}
+
+The value of $name is {$name}.
+```
+The above example will output:
+```
+The value of $name is Bob.
+```
+      
+
+```smarty
+{assign var=running_total value=$running_total+$some_array[$row].some_value}  {* or *}
+{$running_total=$running_total+$some_array[row].some_value}
+```
+
+Variables assigned in the included template will be seen in the
+including template.
+
+```smarty
+{include file="sub_template.tpl"}
+
+{* display variable assigned in sub_template *}
+{$foo}<br>
+```
+
+The template above includes the example `sub_template.tpl` below:
+
+```smarty
+
+{* foo will be known also in the including template *}
+{assign var="foo" value="something" scope=parent}
+{$foo="something" scope=parent}
+
+{* bar is assigned only local in the including template *}
+{assign var="bar" value="value"} {* or *}
+{$var="value"}
+
+```
+
+You can assign a variable to root of the current root tree. The variable
+is seen by all templates using the same root tree.
+
+```smarty
+{assign var=foo value="bar" scope="root"}
+```
+      
+A global variable is seen by all templates.
+
+```smarty
+{assign var=foo value="bar" scope="global"} {* or *}
+{assign "foo" "bar" scope="global"} {* short-hand, or *}
+{$foo="bar" scope="global"}
+```
+ 
+For more information on variable scope, please read the page on [variable scopes](../language-variables/language-variable-scopes.md).
+
+To access `{assign}` variables from a php script use
+[`getTemplateVars()`](../../programmers/api-functions/api-get-template-vars.md). 
+Here's the template that creates the variable `$foo`.
+
+```smarty
+{assign var="foo" value="Smarty"} {* or *}
+{$foo="Smarty"}
+```
+
+The template variables are only available after/during template
+execution as in the following script.
+
+```php
+<?php
+
+// this will output nothing as the template has not been executed
+echo $smarty->getTemplateVars('foo');
+
+// fetch the template to a variable
+$whole_page = $smarty->fetch('index.tpl');
+
+// this will output 'smarty' as the template has been executed
+echo $smarty->getTemplateVars('foo');
+
+$smarty->assign('foo','Even smarter');
+
+// this will output 'Even smarter'
+echo $smarty->getTemplateVars('foo');
+```
+
+The following functions can also *optionally* assign template variables: [`{capture}`](#language.function.capture),
+[`{include}`](#language.function.include),
+[`{counter}`](#language.function.counter),
+[`{cycle}`](#language.function.cycle),
+[`{eval}`](#language.function.eval),
+[`{fetch}`](#language.function.fetch),
+[`{math}`](#language.function.math) and
+[`{textformat}`](#language.function.textformat).
+
+See also [`{append}`](./language-function-append.md),
+[`assign()`](#api.assign) and
+[`getTemplateVars()`](#api.get.template.vars).

docs/designers/language-builtin-functions/language-function-block.md

@@ -0,0 +1,201 @@
+# {block}
+
+`{block}` is used to define a named area of template source for template
+inheritance. For details see section of [Template
+Inheritance](../../api/inheritance.md).
+
+The `{block}` template source area of a child template will replace the
+corresponding areas in the parent template(s).
+
+Optionally `{block}` areas of child and parent templates can be merged
+into each other. You can append or prepend the parent `{block}` content
+by using the `append` or `prepend` option flag with the child's `{block}`
+definition. With `{$smarty.block.parent}` the `{block}` content of
+the parent template can be inserted at any location of the child
+`{block}` content. `{$smarty.block.child}` inserts the `{block}` content
+of the child template at any location of the parent `{block}`.
+
+`{blocks}'s` can be nested.
+
+## Attributes
+
+| Attribute Name | Required | Description                                                                                                          |
+|----------------|----------|----------------------------------------------------------------------------------------------------------------------|
+| name           | yes      | The name of the template source block                                                                                |
+| assign         | no       | The name of variable to assign the output of the block to. |
+
+> **Note** 
+> 
+> The assign attribute only works on the block that actually gets executed, so you may need 
+> to add it to each child block as well.
+
+
+## Option Flags (in child templates only):
+
+| Name    | Description                                                                             |
+|---------|-----------------------------------------------------------------------------------------|
+| append  | The `{block}` content will be appended to the content of the parent template `{block}`  |
+| prepend | The `{block}` content will be prepended to the content of the parent template `{block}` |
+| hide    | Ignore the block content if no child block of same name is existing.                    |
+| nocache | Disables caching of the `{block}` content                                               |
+
+
+## Examples
+
+parent.tpl
+
+```smarty
+    <html>
+      <head>
+        <title>{block name="title"}Default Title{/block}</title>
+        <title>{block "title"}Default Title{/block}</title>  {* short-hand  *}
+      </head>
+    </html>
+```
+      
+
+child.tpl
+
+```smarty
+    {extends file="parent.tpl"} 
+    {block name="title"}
+    Page Title
+    {/block}
+```
+      
+
+The result would look like
+
+```html
+    <html>
+      <head>
+        <title>Page Title</title>
+      </head>
+    </html>
+```
+
+parent.tpl
+
+```smarty
+    <html>
+      <head>
+        <title>{block name="title"}Title - {/block}</title>
+      </head>
+    </html>
+```
+      
+
+child.tpl
+
+```smarty
+    {extends file="parent.tpl"} 
+    {block name="title" append}
+        Page Title
+    {/block}
+```
+      
+
+The result would look like
+
+```html
+    <html>
+      <head>
+        <title>Title - Page Title</title>
+      </head>
+    </html>
+```
+
+parent.tpl
+
+```smarty
+    <html>
+      <head>
+        <title>{block name="title"} is my title{/block}</title>
+      </head>
+    </html>
+```
+      
+child.tpl
+
+```smarty
+    {extends file="parent.tpl"} 
+    {block name="title" prepend}
+    Page Title
+    {/block}
+```
+      
+
+The result would look like
+
+```html
+    <html>
+      <head>
+        <title>Page title is my titel</title>
+      </head>
+    </html>
+```
+
+parent.tpl
+
+```smarty
+    <html>
+      <head>
+        <title>{block name="title"}The {$smarty.block.child} was inserted here{/block}</title>
+      </head>
+    </html>
+```
+      
+child.tpl
+
+```smarty
+    {extends file="parent.tpl"} 
+    {block name="title"}
+        Child Title
+    {/block}
+```
+     
+The result would look like
+
+```html
+    <html>
+      <head>
+        <title>The Child Title was inserted here</title>
+      </head>
+    </html>
+```
+
+parent.tpl
+
+```smarty
+    <html>
+      <head>
+        <title>{block name="title"}Parent Title{/block}</title>
+      </head>
+    </html>
+```
+      
+
+child.tpl
+
+```smarty
+    {extends file="parent.tpl"} 
+    {block name="title"}
+        You will see now - {$smarty.block.parent} - here
+    {/block}
+```
+     
+The result would look like
+
+```html
+    <html>
+      <head>
+        <title>You will see now - Parent Title - here</title>
+      </head>
+    </html>
+```
+
+See also [Template
+Inheritance](../../api/inheritance.md),
+[`$smarty.block.parent`](../language-variables/language-variables-smarty.md#smartyblockparent-languagevariablessmartyblockparent),
+[`$smarty.block.child`](../language-variables/language-variables-smarty.md#smartyblockchild-languagevariablessmartyblockchild), and
+[`{extends}`](./language-function-extends.md)

docs/designers/language-builtin-functions/language-function-call.md

@@ -0,0 +1,77 @@
+# {call}
+
+`{call}` is used to call a template function defined by the
+[`{function}`](./language-function-function.md) tag just like a plugin
+function.
+
+> **Note**
+>
+> Template functions are defined global. Since the Smarty compiler is a
+> single-pass compiler, The `{call}` tag must
+> be used to call a template function defined externally from the given
+> template. Otherwise you can directly use the function as
+> `{funcname ...}` in the template.
+
+-   The `{call}` tag must have the `name` attribute which contains the
+    name of the template function.
+
+-   Values for variables can be passed to the template function as
+    [attributes](../language-basic-syntax/language-syntax-attributes.md).
+
+## Attributes
+
+| Attribute Name | Required | Description                                                                              |
+|----------------|----------|------------------------------------------------------------------------------------------|
+| name           | Yes      | The name of the template function                                                        |
+| assign         | No       | The name of the variable that the output of called template function will be assigned to |
+| [var ...]      | No       | variable to pass local to template function                                              |
+
+## Option Flags
+
+| Name    | Description                                |
+|---------|--------------------------------------------|
+| nocache | Call the template function in nocache mode |
+
+
+## Examples
+
+```smarty
+    {* define the function *}
+    {function name=menu level=0}
+      <ul class="level{$level}">
+      {foreach $data as $entry}
+        {if is_array($entry)}
+          <li>{$entry@key}</li>
+          {call name=menu data=$entry level=$level+1}
+        {else}
+          <li>{$entry}</li>
+        {/if}
+      {/foreach}
+      </ul>
+    {/function}
+
+    {* create an array to demonstrate *}
+    {$menu = ['item1','item2','item3' => ['item3-1','item3-2','item3-3' =>
+    ['item3-3-1','item3-3-2']],'item4']}
+
+    {* run the array through the function *}
+    {call name=menu data=$menu}
+    {call menu data=$menu} {* short-hand *}
+```
+     
+
+Will generate the following output
+
+```
+    * item1
+    * item2
+    * item3
+          o item3-1
+          o item3-2
+          o item3-3
+                + item3-3-1
+                + item3-3-2
+    * item4
+```
+
+See also [`{function}`](./language-function-function.md).

docs/designers/language-builtin-functions/language-function-capture.md

@@ -0,0 +1,75 @@
+# {capture}
+
+`{capture}` is used to collect the output of the template between the
+tags into a variable instead of displaying it. Any content between
+`{capture name='foo'}` and `{/capture}` is collected into the variable
+specified in the `name` attribute.
+
+The captured content can be used in the template from the variable
+[`$smarty.capture.foo`](../language-variables/language-variables-smarty.md#smartycapture-languagevariablessmartycapture) where "foo"
+is the value passed in the `name` attribute. If you do not supply the
+`name` attribute, then "default" will be used as the name ie
+`$smarty.capture.default`.
+
+`{capture}'s` can be nested.
+
+## Attributes
+
+| Attribute Name | Required | Description                                                          |
+|----------------|----------|----------------------------------------------------------------------|
+| name           | Yes      | The name of the captured block                                       |
+| assign         | No       | The variable name where to assign the captured output to             |
+| append         | No       | The name of an array variable where to append the captured output to |
+
+## Option Flags
+
+| Name    | Description                             |
+|---------|-----------------------------------------|
+| nocache | Disables caching of this captured block |
+
+
+## Examples
+
+```smarty
+{* we don't want to print a div tag unless content is displayed *}
+{capture name="banner"}
+{capture "banner"} {* short-hand *}
+  {include file="get_banner.tpl"}
+{/capture}
+
+{if $smarty.capture.banner ne ""}
+<div id="banner">{$smarty.capture.banner}</div>
+{/if}
+```
+      
+This example demonstrates the capture function.
+```smarty
+
+{capture name=some_content assign=popText}
+{capture some_content assign=popText} {* short-hand *}
+The server is {$my_server_name|upper} at {$my_server_addr}<br>
+Your ip is {$my_ip}.
+{/capture}
+<a href="#">{$popText}</a>
+```
+         
+
+This example also demonstrates how multiple calls of capture can be used
+to create an array with captured content.
+
+```smarty
+{capture append="foo"}hello{/capture}I say just {capture append="foo"}world{/capture}
+{foreach $foo as $text}{$text} {/foreach}
+```
+
+The above example will output:
+
+```
+I say just hello world
+```
+      
+
+See also [`$smarty.capture`](../language-variables/language-variables-smarty.md#smartycapture-languagevariablessmartycapture),
+[`{eval}`](../language-custom-functions/language-function-eval.md),
+[`{fetch}`](../language-custom-functions/language-function-fetch.md), [`fetch()`](../../programmers/api-functions/api-fetch.md) and
+[`{assign}`](./language-function-assign.md).

docs/designers/language-builtin-functions/language-function-config-load.md

@@ -0,0 +1,87 @@
+# {config_load}
+
+`{config_load}` is used for loading config
+[`#variables#`](#language.config.variables) from a [configuration file](#config.files) into the template.
+
+## Attributes
+
+| Attribute Name | Required | Description                                                                                                                                                                                                                                                                                                                     |
+|----------------|----------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| file           | Yes      | The name of the config file to include                                                                                                                                                                                                                                                                                          |
+| section        | No       | The name of the section to load                                                                                                                                                                                                                                                                                                 |
+
+
+## Examples
+
+The `example.conf` file.
+
+```ini
+#this is config file comment
+
+# global variables
+pageTitle = "Main Menu"
+bodyBgColor = #000000
+tableBgColor = #000000
+rowBgColor = #00ff00
+
+#customer variables section
+[Customer]
+pageTitle = "Customer Info"
+```
+      
+and the template
+
+```smarty
+{config_load file="example.conf"}
+{config_load "example.conf"}  {* short-hand *}
+
+<html>
+    <title>{#pageTitle#|default:"No title"}</title>
+    <body bgcolor="{#bodyBgColor#}">
+        <table border="{#tableBorderSize#}" bgcolor="{#tableBgColor#}">
+           <tr bgcolor="{#rowBgColor#}">
+              <td>First</td>
+              <td>Last</td>
+              <td>Address</td>
+           </tr>
+        </table>
+    </body>
+</html>
+```
+      
+[Config Files](#config.files) may also contain sections. You can load
+variables from within a section with the added attribute `section`. Note
+that global config variables are always loaded along with section
+variables, and same-named section variables overwrite the globals.
+
+> **Note**
+>
+> Config file *sections* and the built-in template function called
+> [`{section}`](../language-builtin-functions/language-function-section.md) have nothing to do with each
+> other, they just happen to share a common naming convention.
+
+```smarty
+{config_load file='example.conf' section='Customer'}
+{config_load 'example.conf' 'Customer'} {* short-hand *}
+
+<html>
+    <title>{#pageTitle#}</title>
+    <body bgcolor="{#bodyBgColor#}">
+        <table border="{#tableBorderSize#}" bgcolor="{#tableBgColor#}">
+           <tr bgcolor="{#rowBgColor#}">
+              <td>First</td>
+              <td>Last</td>
+              <td>Address</td>
+           </tr>
+        </table>
+    </body>
+</html>
+```
+
+See [`$config_overwrite`](../../programmers/api-variables/variable-config-overwrite.md) to create arrays
+of config file variables.
+
+See also the [config files](../config-files.md) page, [config variables](../language-variables/language-config-variables.md) page,
+[`$config_dir`](../../programmers/api-variables/variable-config-dir.md),
+[`getConfigVars()`](../../programmers/api-functions/api-get-config-vars.md) and
+[`configLoad()`](../../programmers/api-functions/api-config-load.md).

docs/designers/language-builtin-functions/language-function-debug.md

@@ -0,0 +1,17 @@
+# {debug}
+
+`{debug}` dumps the debug console to the page. This works regardless of
+the [debug](../chapter-debugging-console.md) settings in the php script.
+Since this gets executed at runtime, this is only able to show the
+[assigned](../../programmers/api-functions/api-assign.md) variables; not the templates that are in use.
+However, you can see all the currently available variables within the
+scope of a template.
+
+If caching is enabled and a page is loaded from cache `{debug}` does
+show only the variables which assigned for the cached page.
+
+In order to see also the variables which have been locally assigned
+within the template it does make sense to place the `{debug}` tag at the
+end of the template.
+
+See also the [debugging console page](../chapter-debugging-console.md).

docs/designers/language-builtin-functions/language-function-extends.md

@@ -0,0 +1,37 @@
+# {extends}
+
+`{extends}` tags are used in child templates in template inheritance for
+extending parent templates. For details see section of [Template
+Inheritance](../../api/inheritance.md).
+
+-   The `{extends}` tag must be on the first line of the template.
+
+-   If a child template extends a parent template with the `{extends}`
+    tag it may contain only `{block}` tags. Any other template content
+    is ignored.
+
+-   Use the syntax for [template resources](../../api/resources.md) to extend files
+    outside the [`$template_dir`](../../programmers/api-variables/variable-template-dir.md) directory.
+
+## Attributes
+
+| Attribute | Required | Description                                     |
+|-----------|----------|-------------------------------------------------|
+| file      | Yes      | The name of the template file which is extended |
+
+> **Note**
+>
+> When extending a variable parent like `{extends file=$parent_file}`,
+> make sure you include `$parent_file` in the
+> [`$compile_id`](../../programmers/api-variables/variable-compile-id.md). Otherwise, Smarty cannot
+> distinguish between different `$parent_file`s.
+
+## Examples
+
+```smarty
+{extends file='parent.tpl'}
+{extends 'parent.tpl'}  {* short-hand *}
+```
+
+See also [Template Inheritance](../../api/inheritance.md)
+and [`{block}`](./language-function-block.md).

docs/designers/language-builtin-functions/language-function-for.md

@@ -0,0 +1,91 @@
+# {for}
+
+The `{for}{forelse}` tag is used to create simple loops. The following different formats are supported:
+
+-   `{for $var=$start to $end}` simple loop with step size of 1.
+
+-   `{for $var=$start to $end step $step}` loop with individual step
+    size.
+
+`{forelse}` is executed when the loop is not iterated.
+
+## Attributes
+
+| Attribute | Required | Description                    |
+|-----------|----------|--------------------------------|
+| max       | No       | Limit the number of iterations |
+
+## Option Flags
+
+| Name    | Description                          |
+|---------|--------------------------------------|
+| nocache | Disables caching of the `{for}` loop |
+
+## Examples
+
+```smarty
+<ul>
+    {for $foo=1 to 3}
+        <li>{$foo}</li>
+    {/for}
+</ul>
+```
+      
+The above example will output:
+
+```html
+<ul>
+    <li>1</li>
+    <li>2</li>
+    <li>3</li>
+</ul>
+```
+      
+```php
+<?php
+$smarty->assign('to',10);
+```
+    
+```smarty
+<ul>
+    {for $foo=3 to $to max=3}
+        <li>{$foo}</li>
+    {/for}
+</ul>
+```
+
+The above example will output:
+
+```html
+<ul>
+    <li>3</li>
+    <li>4</li>
+    <li>5</li>
+</ul>
+```
+
+```php
+<?php
+$smarty->assign('start',10);
+$smarty->assign('to',5);
+```
+
+```smarty
+<ul>
+    {for $foo=$start to $to}
+        <li>{$foo}</li>
+    {forelse}
+      no iteration
+    {/for}
+</ul>
+```
+
+The above example will output:
+
+```
+   no iteration
+```
+      
+See also [`{foreach}`](./language-function-foreach.md),
+[`{section}`](./language-function-section.md) and
+[`{while}`](./language-function-while.md)

docs/designers/language-builtin-functions/language-function-foreach.md

@@ -0,0 +1,389 @@
+# {foreach},{foreachelse}
+
+`{foreach}` is used for looping over arrays of data. `{foreach}` has a
+simpler and cleaner syntax than the
+[`{section}`](./language-function-section.md) loop, and can also loop over
+associative arrays.
+
+## Option Flags
+
+| Name    | Description                              |
+|---------|------------------------------------------|
+| nocache | Disables caching of the `{foreach}` loop |
+
+
+## Examples
+
+```smarty
+
+{foreach $arrayvar as $itemvar}
+  {$itemvar|escape}
+{/foreach}
+
+{foreach $arrayvar as $keyvar=>$itemvar}
+  {$keyvar}: {$itemvar|escape}
+{/foreach}
+
+```
+> **Note**
+>
+> This foreach syntax does not accept any named attributes. This syntax
+> is new to Smarty 3, however the Smarty 2.x syntax
+> `{foreach from=$myarray key="mykey" item="myitem"}` is still
+> supported.
+
+-   `{foreach}` loops can be nested.
+
+-   The `array` variable, usually an array of values, determines the
+    number of times `{foreach}` will loop. You can also pass an integer
+    for arbitrary loops.
+
+-   `{foreachelse}` is executed when there are no values in the `array`
+    variable.
+
+-   `{foreach}` properties are [`@index`](#index),
+    [`@iteration`](#iteration),
+    [`@first`](#first),
+    [`@last`](#last),
+    [`@show`](#show),
+    [`@total`](#total).
+
+-   `{foreach}` constructs are [`{break}`](#break),
+    [`{continue}`](#continue).
+
+-   Instead of specifying the `key` variable you can access the current
+    key of the loop item by `{$item@key}` (see examples below).
+
+> **Note**
+>
+> The `$var@property` syntax is new to Smarty 3, however when using the
+> Smarty 2 `{foreach from=$myarray key="mykey" item="myitem"}` style
+> syntax, the `$smarty.foreach.name.property` syntax is still supported.
+
+> **Note**
+>
+> Although you can retrieve the array key with the syntax
+> `{foreach $myArray as $myKey => $myValue}`, the key is always
+> available as `$myValue@key` within the foreach loop.
+
+```php
+<?php
+$arr = array('red', 'green', 'blue');
+$smarty->assign('myColors', $arr);
+```
+    
+Template to output `$myColors` in an un-ordered list
+
+```smarty
+<ul>
+    {foreach $myColors as $color}
+        <li>{$color}</li>
+    {/foreach}
+</ul>
+```
+      
+The above example will output:
+
+```html
+<ul>
+    <li>red</li>
+    <li>green</li>
+    <li>blue</li>
+</ul>
+```
+
+```php      
+<?php
+$people = array('fname' => 'John', 'lname' => 'Doe', 'email' => 'j.doe@example.com');
+$smarty->assign('myPeople', $people);
+```
+
+Template to output `$myArray` as key/value pairs.
+
+```smarty
+<ul>
+    {foreach $myPeople as $value}
+       <li>{$value@key}: {$value}</li>
+    {/foreach}
+</ul>
+```
+     
+The above example will output:
+
+```html
+<ul>
+    <li>fname: John</li>
+    <li>lname: Doe</li>
+    <li>email: j.doe@example.com</li>
+</ul>
+```
+      
+Assign an array to Smarty, the key contains the key for each looped
+value.
+
+```php
+<?php
+ $smarty->assign(
+    'contacts', 
+    [
+         ['phone' => '555-555-1234', 'fax' => '555-555-5678', 'cell' => '555-555-0357'],
+         ['phone' => '800-555-4444', 'fax' => '800-555-3333', 'cell' => '800-555-2222'],
+     ]
+ );
+```
+
+The template to output `$contact`.
+
+```smarty
+{* key always available as a property *}
+{foreach $contacts as $contact}
+  {foreach $contact as $value}
+    {$value@key}: {$value}
+  {/foreach}
+{/foreach}
+
+{* accessing key the PHP syntax alternate *}
+{foreach $contacts as $contact}
+  {foreach $contact as $key => $value}
+    {$key}: {$value}
+  {/foreach}
+{/foreach}
+```
+      
+Either of the above examples will output:
+
+```
+  phone: 555-555-1234
+  fax: 555-555-5678
+  cell: 555-555-0357
+  phone: 800-555-4444
+  fax: 800-555-3333
+  cell: 800-555-2222
+```
+      
+A database (PDO) example of looping over search results. This example is
+looping over a PHP iterator instead of an array().
+
+```php
+<?php 
+  use Smarty\Smarty;
+
+  $smarty = new Smarty; 
+
+  $dsn = 'mysql:host=localhost;dbname=test'; 
+  $login = 'test'; 
+  $passwd = 'test'; 
+
+  // setting PDO to use buffered queries in mysql is 
+  // important if you plan on using multiple result cursors 
+  // in the template. 
+
+  $db = new PDO($dsn, $login, $passwd, array( 
+     PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true)); 
+
+  $res = $db->prepare("select * from users"); 
+  $res->execute(); 
+  $res->setFetchMode(PDO::FETCH_LAZY); 
+
+  // assign to smarty 
+  $smarty->assign('res',$res); 
+
+  $smarty->display('index.tpl');?>
+```
+
+```smarty
+{foreach $res as $r} 
+  {$r.id} 
+  {$r.name}
+{foreachelse}
+  .. no results .. 
+{/foreach}
+```
+
+The above is assuming the results contain the columns named `id` and
+`name`.
+
+What is the advantage of an iterator vs. looping over a plain old array?
+With an array, all the results are accumulated into memory before being
+looped. With an iterator, each result is loaded/released within the
+loop. This saves processing time and memory, especially for very large
+result sets.
+
+## @index
+
+`index` contains the current array index, starting with zero.
+
+```smarty
+{* output empty row on the 4th iteration (when index is 3) *}
+<table>
+    {foreach $items as $i}
+      {if $i@index eq 3}
+         {* put empty table row *}
+         <tr><td>nbsp;</td></tr>
+      {/if}
+      <tr><td>{$i.label}</td></tr>
+    {/foreach}
+</table>
+```
+      
+
+## @iteration
+
+`iteration` contains the current loop iteration and always starts at
+one, unlike [`index`](#index). It is incremented by one
+on each iteration.
+
+The *"is div by"* operator can be used to detect a specific iteration.
+Here we bold-face the name every 4th iteration.
+
+```smarty
+{foreach $myNames as $name}
+  {if $name@iteration is div by 4}
+    <b>{$name}</b>
+  {/if}
+  {$name}
+{/foreach}
+```
+
+The *"is even by"* and *"is odd by"* operators can be used to
+alternate something every so many iterations. Choosing between even or
+odd rotates which one starts. Here we switch the font color every 3rd
+iteration.
+
+```smarty
+ {foreach $myNames as $name}
+   {if $name@index is even by 3}
+     <span style="color: #000">{$name}</span>
+   {else}
+     <span style="color: #eee">{$name}</span>
+   {/if}
+ {/foreach}
+```
+
+This will output something similar to this:
+
+```html
+<span style="color: #000">...</span>
+<span style="color: #000">...</span>
+<span style="color: #000">...</span>
+<span style="color: #eee">...</span>
+<span style="color: #eee">...</span>
+<span style="color: #eee">...</span>
+<span style="color: #000">...</span>
+<span style="color: #000">...</span>
+<span style="color: #000">...</span>
+<span style="color: #eee">...</span>
+<span style="color: #eee">...</span>
+<span style="color: #eee">...</span>
+...
+```
+       
+## @first
+
+`first` is TRUE if the current `{foreach}` iteration is the initial one.
+Here we display a table header row on the first iteration.
+
+```smarty
+{* show table header at first iteration *}
+<table>
+    {foreach $items as $i}
+      {if $i@first}
+        <tr>
+          <th>key</td>
+          <th>name</td>
+        </tr>
+      {/if}
+      <tr>
+        <td>{$i@key}</td>
+        <td>{$i.name}</td>
+      </tr>
+    {/foreach}
+</table>
+```
+      
+## @last
+
+`last` is set to TRUE if the current `{foreach}` iteration is the final
+one. Here we display a horizontal rule on the last iteration.
+
+```smarty
+{* Add horizontal rule at end of list *}
+{foreach $items as $item}
+  <a href="#{$item.id}">{$item.name}</a>{if $item@last}<hr>{else},{/if}
+{foreachelse}
+  ... no items to loop ...
+{/foreach}
+```
+      
+## @show
+
+The show `show` property can be used after the execution of a
+`{foreach}` loop to detect if data has been displayed or not. `show` is
+a boolean value.
+
+```smarty
+<ul>
+    {foreach $myArray as $name}
+        <li>{$name}</li>
+    {/foreach}
+</ul>
+{if $name@show} do something here if the array contained data {/if}
+```
+
+## @total
+
+`total` contains the number of iterations that this `{foreach}` will
+loop. This can be used inside or after the `{foreach}`.
+
+```smarty
+{* show number of rows at end *}
+{foreach $items as $item}
+  {$item.name}<hr/>
+  {if $item@last}
+    <div id="total">{$item@total} items</div>
+  {/if}
+{foreachelse}
+ ... no items to loop ...
+{/foreach}
+```
+
+See also [`{section}`](./language-function-section.md),
+[`{for}`](./language-function-for.md) and
+[`{while}`](./language-function-while.md)
+
+## {break}
+
+`{break}` aborts the iteration of the array
+
+```smarty     
+  {$data = [1,2,3,4,5]}
+  {foreach $data as $value}
+    {if $value == 3}
+      {* abort iterating the array *}
+      {break}
+    {/if}
+    {$value}
+  {/foreach}
+  {*
+    prints: 1 2
+  *}
+``` 
+       
+## {continue}
+
+`{continue}` leaves the current iteration and begins with the next
+iteration.
+
+```smarty
+  {$data = [1,2,3,4,5]}
+  {foreach $data as $value}
+    {if $value == 3}
+      {* skip this iteration *}
+      {continue}
+    {/if}
+    {$value}
+  {/foreach}
+  {*
+    prints: 1 2 4 5
+  *}
+```

docs/designers/language-builtin-functions/language-function-function.md

@@ -0,0 +1,89 @@
+# {function}
+
+`{function}` is used to create functions within a template and call them
+just like a plugin function. Instead of writing a plugin that generates
+presentational content, keeping it in the template is often a more
+manageable choice. It also simplifies data traversal, such as deeply
+nested menus.
+
+> **Note**
+>
+> Template functions are defined global. Since the Smarty compiler is a
+> single-pass compiler, The [`{call}`](#language.function.call) tag must
+> be used to call a template function defined externally from the given
+> template. Otherwise, you can directly use the function as
+> `{funcname ...}` in the template.
+
+## Attributes
+
+| Attribute Name | Required | Description                                                   |
+|----------------|----------|---------------------------------------------------------------|
+| name           | Yes      | The name of the template function                             |
+| \[var \...\]   | No       | default variable value to pass local to the template function |
+
+-   The `{function}` tag must have the `name` attribute which contains
+    the name of the template function. A tag with this name can be
+    used to call the template function.
+
+-   Default values for variables can be passed to the template function
+    as [attributes](../language-basic-syntax/language-syntax-attributes.md). Like in PHP function
+    declarations you can only use scalar values as default. The default
+    values can be overwritten when the template function is being
+    called.
+
+-   You can use all variables from the calling template inside the
+    template function. Changes to variables or new created variables
+    inside the template function have local scope and are not visible
+    inside the calling template after the template function is executed.
+
+
+
+> **Note**
+>
+> You can pass any number of parameter to the template function when it
+> is called. The parameter variables must not be declared in the
+> `{funcname ...}` tag unless you what to use default values. Default
+> values must be scalar and can not be variable. Variables must be
+> passed when the template is called.
+
+## Examples
+
+```smarty
+{* define the function *}
+{function name=menu level=0}
+{function menu level=0}          {* short-hand *}
+  <ul class="level{$level}">
+  {foreach $data as $entry}
+    {if is_array($entry)}
+      <li>{$entry@key}</li>
+      {menu data=$entry level=$level+1}
+    {else}
+      <li>{$entry}</li>
+    {/if}
+  {/foreach}
+  </ul>
+{/function}
+
+{* create an array to demonstrate *}
+{$menu = ['item1','item2','item3' => ['item3-1','item3-2','item3-3' =>
+['item3-3-1','item3-3-2']],'item4']}
+
+{* run the array through the function *}
+{menu data=$menu}
+```
+
+Will generate the following output
+
+```
+* item1
+* item2
+* item3
+      o item3-1
+      o item3-2
+      o item3-3
+            + item3-3-1
+            + item3-3-2
+* item4
+```
+      
+See also [`{call}`](./language-function-call.md)

docs/designers/language-builtin-functions/language-function-if.md

@@ -0,0 +1,92 @@
+# {if},{elseif},{else}
+
+`{if}` statements in Smarty have much the same flexibility as PHP
+[if](https://www.php.net/if) statements, with a few added features for the
+template engine. Every `{if}` must be paired with a matching `{/if}`.
+`{else}` and `{elseif}` are also permitted. All [operators](../language-basic-syntax/language-syntax-operators.md) are recognized, such as *==*,
+*\|\|*, *or*, *&&*, *and*, etc and you can use modifiers as functions, such as *is_array()*.
+
+## Examples
+```smarty
+{if $name eq 'Fred'}
+    Welcome Sir.
+{elseif $name eq 'Wilma'}
+    Welcome Ma'am.
+{else}
+    Welcome, whatever you are.
+{/if}
+
+{* an example with "or" logic *}
+{if $name eq 'Fred' or $name eq 'Wilma'}
+   ...
+{/if}
+
+{* same as above *}
+{if $name == 'Fred' || $name == 'Wilma'}
+   ...
+{/if}
+
+
+{* parenthesis are allowed *}
+{if ( $amount < 0 or $amount > 1000 ) and $volume >= #minVolAmt#}
+   ...
+{/if}
+
+
+{* you can also embed php function calls *}
+{if count($var) gt 0}
+   ...
+{/if}
+
+{* check for array. *}
+{if is_array($foo) }
+   .....
+{/if}
+
+{* check for not null. *}
+{if isset($foo) }
+   .....
+{/if}
+
+
+{* test if values are even or odd *}
+{if $var is even}
+   ...
+{/if}
+{if $var is odd}
+   ...
+{/if}
+{if $var is not odd}
+   ...
+{/if}
+
+
+{* test if var is divisible by 4 *}
+{if $var is div by 4}
+   ...
+{/if}
+
+
+{*
+  test if var is even, grouped by two. i.e.,
+  0=even, 1=even, 2=odd, 3=odd, 4=even, 5=even, etc.
+*}
+{if $var is even by 2}
+   ...
+{/if}
+
+{* 0=even, 1=even, 2=even, 3=odd, 4=odd, 5=odd, etc. *}
+{if $var is even by 3}
+   ...
+{/if}
+ 
+{if isset($name) && $name == 'Blog'}
+     {* do something *}
+{elseif $name == $foo}
+    {* do something *}
+{/if}
+
+{if is_array($foo) && count($foo) > 0}
+    {* do a foreach loop *}
+{/if}
+```

docs/designers/language-builtin-functions/language-function-include.md

@@ -0,0 +1,189 @@
+# {include}
+
+`{include}` tags are used for including other templates in the current
+template. Any variables available in the current template are also
+available within the included template.
+
+## Attributes
+
+| Attribute Name | Required | Description                                                                                |
+|----------------|----------|--------------------------------------------------------------------------------------------|
+| file           | Yes      | The name of the template file to include                                                   |
+| assign         | No       | The name of the variable that the output of include will be assigned to                    |
+| cache_lifetime | No       | Enable caching of this subtemplate with an individual cache lifetime                       |
+| compile_id     | No       | Compile this subtemplate with an individual compile_id                                     |
+| cache_id       | No       | Enable caching of this subtemplate with an individual cache_id                             |
+| scope          | No       | Define the scope of all in the subtemplate assigned variables: 'parent','root' or 'global' |
+| \[var \...\]   | No       | variable to pass local to template                                                         |
+
+
+-   The `{include}` tag must have the `file` attribute which contains
+    the template resource path.
+
+-   Setting the optional `assign` attribute specifies the template
+    variable that the output of `{include}` is assigned to, instead of
+    being displayed. Similar to [`{assign}`](./language-function-assign.md).
+
+-   Variables can be passed to included templates as
+    [attributes](../language-basic-syntax/language-syntax-attributes.md). Any variables explicitly
+    passed to an included template are only available within the scope
+    of the included file. Attribute variables override current template
+    variables, in the case when they are named the same.
+
+-   You can use all variables from the including template inside the
+    included template. But changes to variables or new created variables
+    inside the included template have local scope and are not visible
+    inside the including template after the `{include}` statement. This
+    default behaviour can be changed for all variables assigned in the
+    included template by using the scope attribute at the `{include}`
+    statement or for individual variables by using the scope attribute
+    at the [`{assign}`](./language-function-assign.md) statement. The later
+    is useful to return values from the included template to the
+    including template.
+
+-   Use the syntax for [template resources](../../api/resources.md) to `{include}`
+    files outside of the [`$template_dir`](../../programmers/api-variables/variable-template-dir.md)
+    directory.
+
+## Option Flags
+
+| Name      | Description                                                                          |
+|-----------|--------------------------------------------------------------------------------------|
+| nocache   | Disables caching of this subtemplate                                                 |
+| caching   | Enable caching of this subtemplate                                                   |
+| inline \* | If set, merge the compile-code of the subtemplate into the compiled calling template |
+
+\* The `inline` option flag is currently not implemented in Smarty v5. Using it will not trigger an error, however.
+
+## Examples
+```smarty
+<html>
+    <head>
+      <title>{$title}</title>
+    </head>
+    <body>
+    {include file='page_header.tpl'}
+
+    {* body of template goes here, the $tpl_name variable
+       is replaced with a value eg 'contact.tpl'
+    *}
+    {include file="$tpl_name.tpl"}
+
+    {* using shortform file attribute *}
+    {include 'page_footer.tpl'}
+    </body>
+</html>
+```
+
+```smarty
+
+{include 'links.tpl' title='Newest links' links=$link_array}
+{* body of template goes here *}
+{include 'footer.tpl' foo='bar'}
+
+```
+
+The template above includes the example `links.tpl` below
+
+```smarty
+<div id="box">
+    <h3>{$title}</h3>
+    <ul>
+        {foreach from=$links item=l}
+            .. do stuff  ...
+        {/foreach}
+    </ul>
+</div>
+```
+Variables assigned in the included template will be seen in the
+including template.
+
+```smarty
+{include 'sub_template.tpl' scope=parent}
+...
+{* display variables assigned in sub_template *}
+{$foo}<br>
+{$bar}<br>
+...
+```
+      
+The template above includes the example `sub_template.tpl` below
+
+```smarty
+...
+{assign var=foo value='something'}
+{assign var=bar value='value'}
+...
+```
+
+The included template will not be cached.
+
+```smarty
+{include 'sub_template.tpl' nocache}
+...
+```
+      
+In this example included template will be cached with an individual
+cache lifetime of 500 seconds.
+
+```smarty
+{include 'sub_template.tpl' cache_lifetime=500}
+...
+```
+      
+In this example included template will be cached independent of the
+global caching setting.
+
+```smarty
+{include 'sub_template.tpl' caching}
+...
+```
+      
+This example assigns the contents of `nav.tpl` to the `$navbar`
+variable, which is then output at both the top and bottom of the page.
+
+```smarty     
+<body>
+  {include 'nav.tpl' assign=navbar}
+  {include 'header.tpl' title='Smarty is cool'}
+    {$navbar}
+    {* body of template goes here *}
+    {$navbar}
+  {include 'footer.tpl'}
+</body>
+```
+       
+This example includes another template relative to the directory of the
+current template.
+
+```smarty
+{include 'template-in-a-template_dir-directory.tpl'}
+{include './template-in-same-directory.tpl'}
+{include '../template-in-parent-directory.tpl'}
+```
+        
+```smarty
+{* absolute filepath *}
+{include file='/usr/local/include/templates/header.tpl'}
+
+{* absolute filepath (same thing) *}
+{include file='file:/usr/local/include/templates/header.tpl'}
+
+{* windows absolute filepath (MUST use "file:" prefix) *}
+{include file='file:C:/www/pub/templates/header.tpl'}
+
+{* include from template resource named "db" *}
+{include file='db:header.tpl'}
+
+{* include a $variable template - eg $module = 'contacts' *}
+{include file="$module.tpl"}
+
+{* wont work as its single quotes ie no variable substitution *}
+{include file='$module.tpl'}
+
+{* include a multi $variable template - eg amber/links.view.tpl *}
+{include file="$style_dir/$module.$view.tpl"}
+```
+      
+See also [template resources](../../api/resources.md) and
+[componentized templates](../../appendixes/tips.md#componentized-templates).

docs/designers/language-builtin-functions/language-function-ldelim.md

@@ -0,0 +1,51 @@
+# {ldelim}, {rdelim}
+
+`{ldelim}` and `{rdelim}` are used for [escaping](../language-basic-syntax/language-escaping.md)
+template delimiters, by default **{** and **}**. You can also use
+[`{literal}{/literal}`](./language-function-literal.md) to escape blocks of
+text eg Javascript or CSS. See also the complementary
+[`{$smarty.ldelim}`](../../designers/language-basic-syntax/language-escaping.md).
+
+```smarty
+{* this will print literal delimiters out of the template *}
+
+{ldelim}funcname{rdelim} is how functions look in Smarty!
+```
+
+The above example will output:
+
+```
+{funcname} is how functions look in Smarty!
+```
+
+Another example with some Javascript
+
+```smarty
+<script>
+function foo() {ldelim}
+    ... code ...
+{rdelim}
+</script>
+```
+
+will output
+
+```html
+<script>
+function foo() {
+    .... code ...
+}
+</script>
+```
+
+```smarty
+<script>
+    function myJsFunction(){ldelim}
+        alert("The server name\n{$smarty.server.SERVER_NAME|escape:javascript}\n{$smarty.server.SERVER_ADDR|escape:javascript}");
+    {rdelim}
+</script>
+<a href="javascript:myJsFunction()">Click here for Server Info</a>
+```
+
+See also [`{literal}`](./language-function-literal.md) and [escaping Smarty
+parsing](../language-basic-syntax/language-escaping.md).

docs/designers/language-builtin-functions/language-function-literal.md

@@ -0,0 +1,34 @@
+# {literal}
+
+`{literal}` tags allow a block of data to be taken literally. This is
+typically used around Javascript or stylesheet blocks where {curly
+braces} would interfere with the template
+[delimiter](../../designers/language-basic-syntax/language-escaping.md) syntax. Anything within
+`{literal}{/literal}` tags is not interpreted, but displayed as-is. If
+you need template tags embedded in a `{literal}` block, consider using
+[`{ldelim}{rdelim}`](./language-function-ldelim.md) to escape the individual
+delimiters instead.
+
+> **Note**
+>
+> `{literal}{/literal}` tags are normally not necessary, as Smarty
+> ignores delimiters that are surrounded by whitespace. Be sure your
+> javascript and CSS curly braces are surrounded by whitespace. This is
+> new behavior to Smarty 3.
+
+```smarty
+<script>
+   // the following braces are ignored by Smarty
+   // since they are surrounded by whitespace
+   function myFoo {
+     alert('Foo!');
+   }
+   // this one will need literal escapement
+   {literal}
+     function myBar {alert('Bar!');}
+   {/literal}
+</script>
+```
+
+See also [`{ldelim} {rdelim}`](./language-function-ldelim.md) and the
+[escaping Smarty parsing](../language-basic-syntax/language-escaping.md) page.

docs/designers/language-builtin-functions/language-function-nocache.md

@@ -0,0 +1,20 @@
+# {nocache}
+
+`{nocache}` is used to disable caching of a template section. Every
+`{nocache}` must be paired with a matching `{/nocache}`.
+
+> **Note**
+>
+> Be sure any variables used within a non-cached section are also
+> assigned from PHP when the page is loaded from the cache.
+
+```smarty
+Today's date is
+{nocache}
+{$smarty.now|date_format}
+{/nocache}
+```
+   
+The above code will output the current date on a cached page.
+
+See also the [caching section](../../api/caching/basics.md).

docs/designers/language-builtin-functions/language-function-section.md

@@ -0,0 +1,610 @@
+# {section}, {sectionelse}
+
+A `{section}` is for looping over **sequentially indexed arrays of
+data**, unlike [`{foreach}`](./language-function-foreach.md) which is used
+to loop over a **single associative array**. Every `{section}` tag must
+be paired with a closing `{/section}` tag.
+
+> **Note**
+>
+> The [`{foreach}`](./language-function-foreach.md) loop can do everything a
+> {section} loop can do, and has a simpler and easier syntax. It is
+> usually preferred over the {section} loop.
+
+> **Note**
+>
+> {section} loops cannot loop over associative arrays, they must be
+> numerically indexed, and sequential (0,1,2,\...). For associative
+> arrays, use the [`{foreach}`](./language-function-foreach.md) loop.
+
+
+## Attributes
+
+| Attribute Name | Required | Description                                                                                                                                                                                                                                                                                                                                                                          |
+|----------------|----------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| name           | Yes      | The name of the section                                                                                                                                                                                                                                                                                                                                                              |
+| loop           | Yes      | Value to determine the number of loop iterations                                                                                                                                                                                                                                                                                                                                     |
+| start          | No       | The index position that the section will begin looping. If the value is negative, the start position is calculated from the end of the array. For example, if there are seven values in the loop array and start is -2, the start index is 5. Invalid values (values outside of the length of the loop array) are automatically truncated to the closest valid value. Defaults to 0. |
+| step           | No       | The step value that will be used to traverse the loop array. For example, step=2 will loop on index 0, 2, 4, etc. If step is negative, it will step through the array backwards. Defaults to 1.                                                                                                                                                                                      |
+| max            | No       | Sets the maximum number of times the section will loop.                                                                                                                                                                                                                                                                                                                              |
+| show           | No       | Determines whether to show this section (defaults to true)                                                                                                                                                                                                                                                                                                                           |
+
+## Option Flags
+
+| Name    | Description                              |
+|---------|------------------------------------------|
+| nocache | Disables caching of the `{section}` loop |
+
+-   Required attributes are `name` and `loop`.
+
+-   The `name` of the `{section}` can be anything you like, made up of
+    letters, numbers and underscores, like [PHP
+    variables](https://www.php.net/language.variables).
+
+-   {section}'s can be nested, and the nested `{section}` names must be
+    unique from each other.
+
+-   The `loop` attribute, usually an array of values, determines the
+    number of times the `{section}` will loop. You can also pass an
+    integer as the loop value.
+
+-   When printing a variable within a `{section}`, the `{section}`
+    `name` must be given next to variable name within \[brackets\].
+
+-   `{sectionelse}` is executed when there are no values in the loop
+    variable.
+
+-   A `{section}` also has its own variables that handle `{section}`
+    properties. These properties are accessible as:
+    [`{$smarty.section.name.property}`](../language-variables/language-variables-smarty.md#smartysection-languagevariablessmartyloops)
+    where "name" is the attribute `name`.
+
+-   `{section}` properties are [`index`](#index),
+    [`index_prev`](#index_prev),
+    [`index_next`](#index_next),
+    [`iteration`](#iteration),
+    [`first`](#first),
+    [`last`](#last),
+    [`rownum`](#rownum),
+    [`loop`](#loop), [`show`](#show),
+    [`total`](#total).
+
+[`assign()`](../../programmers/api-functions/api-assign.md) an array to Smarty
+
+## Examples
+
+```php
+<?php
+$data = [1000, 1001, 1002];
+$smarty->assign('custid', $data);
+```
+
+The template that outputs the array
+
+```smarty
+{* this example will print out all the values of the $custid array *}
+{section name=customer loop=$custid}
+{section customer $custid} {* short-hand *}
+  id: {$custid[customer]}<br />
+{/section}
+<hr />
+{*  print out all the values of the $custid array reversed *}
+{section name=foo loop=$custid step=-1}
+{section foo $custid step=-1} {* short-hand *}
+  {$custid[foo]}<br />
+{/section}
+```
+      
+The above example will output:
+
+```html
+id: 1000<br />
+id: 1001<br />
+id: 1002<br />
+<hr />
+id: 1002<br />
+id: 1001<br />
+id: 1000<br />
+```
+      
+```smarty
+{section name=foo start=10 loop=20 step=2}
+  {$smarty.section.foo.index}
+{/section}
+<hr />
+{section name=bar loop=21 max=6 step=-2}
+  {$smarty.section.bar.index}
+{/section}
+```
+
+The above example will output:
+
+```html
+10 12 14 16 18
+<hr />
+20 18 16 14 12 10
+```
+
+The `name` of the `{section}` can be anything you like, see [PHP
+variables](https://www.php.net/language.variables). It is used to reference
+the data within the `{section}`.
+
+```smarty
+{section name=anything loop=$myArray}
+  {$myArray[anything].foo}
+  {$name[anything]}
+  {$address[anything].bar}
+{/section}
+```
+
+This is an example of printing an associative array of data with a
+`{section}`. Following is the php script to assign the `$contacts` array
+to Smarty.
+
+```php
+<?php
+$data = [
+      ['name' => 'John Smith', 'home' => '555-555-5555',
+            'cell' => '666-555-5555', 'email' => 'john@myexample.com'],
+      ['name' => 'Jack Jones', 'home' => '777-555-5555',
+            'cell' => '888-555-5555', 'email' => 'jack@myexample.com'],
+      ['name' => 'Jane Munson', 'home' => '000-555-5555',
+            'cell' => '123456', 'email' => 'jane@myexample.com']
+];
+$smarty->assign('contacts',$data);
+```
+    
+The template to output `$contacts`
+
+```smarty
+{section name=customer loop=$contacts}
+<p>
+  name: {$contacts[customer].name}<br />
+  home: {$contacts[customer].home}<br />
+  cell: {$contacts[customer].cell}<br />
+  e-mail: {$contacts[customer].email}
+</p>
+{/section}
+```
+
+The above example will output:
+
+```html
+<p>
+  name: John Smith<br />
+  home: 555-555-5555<br />
+  cell: 666-555-5555<br />
+  e-mail: john@myexample.com
+</p>
+<p>
+  name: Jack Jones<br />
+  home phone: 777-555-5555<br />
+  cell phone: 888-555-5555<br />
+  e-mail: jack@myexample.com
+</p>
+<p>
+  name: Jane Munson<br />
+  home phone: 000-555-5555<br />
+  cell phone: 123456<br />
+  e-mail: jane@myexample.com
+</p>
+```
+      
+This example assumes that `$custid`, `$name` and `$address` are all
+arrays containing the same number of values. First the php script that
+assign's the arrays to Smarty.
+
+```php
+<?php
+
+$id = [1001,1002,1003];
+$smarty->assign('custid',$id);
+
+$fullnames = ['John Smith','Jack Jones','Jane Munson'];
+$smarty->assign('name',$fullnames);
+
+$addr = ['253 Abbey road', '417 Mulberry ln', '5605 apple st'];
+$smarty->assign('address',$addr);
+```
+
+The `loop` variable only determines the number of times to loop. You can
+access ANY variable from the template within the `{section}`. This is
+useful for looping multiple arrays. You can pass an array which will
+determine the loop count by the array size, or you can pass an integer
+to specify the number of loops.
+
+```smarty
+{section name=customer loop=$custid}
+<p>
+  id: {$custid[customer]}<br />
+  name: {$name[customer]}<br />
+  address: {$address[customer]}
+</p>
+{/section}
+```
+      
+The above example will output:
+
+```html
+<p>
+  id: 1000<br />
+  name: John Smith<br />
+  address: 253 Abbey road
+</p>
+<p>
+  id: 1001<br />
+  name: Jack Jones<br />
+  address: 417 Mulberry ln
+</p>
+<p>
+  id: 1002<br />
+  name: Jane Munson<br />
+  address: 5605 apple st
+</p>
+```
+      
+{section}'s can be nested as deep as you like. With nested
+{section}'s, you can access complex data structures, such as
+multidimensional arrays. This is an example `.php` script that
+assigns the arrays.
+
+```php
+<?php
+
+$id = [1001,1002,1003];
+$smarty->assign('custid',$id);
+
+$fullnames = ['John Smith','Jack Jones','Jane Munson'];
+$smarty->assign('name',$fullnames);
+
+$addr = ['253 N 45th', '417 Mulberry ln', '5605 apple st'];
+$smarty->assign('address',$addr);
+
+$types = [
+           [ 'home phone', 'cell phone', 'e-mail'],
+           [ 'home phone', 'web'],
+           [ 'cell phone']
+         ];
+$smarty->assign('contact_type', $types);
+
+$info = [
+           ['555-555-5555', '666-555-5555', 'john@myexample.com'],
+           [ '123-456-4', 'www.example.com'],
+           [ '0457878']
+        ];
+$smarty->assign('contact_info', $info);
+```
+      
+In this template, *$contact_type\[customer\]* is an array of contact
+types for the current customer.
+
+```smarty
+{section name=customer loop=$custid}
+<hr>
+  id: {$custid[customer]}<br />
+  name: {$name[customer]}<br />
+  address: {$address[customer]}<br />
+  {section name=contact loop=$contact_type[customer]}
+    {$contact_type[customer][contact]}: {$contact_info[customer][contact]}<br />
+  {/section}
+{/section}
+```
+      
+The above example will output:
+
+```html
+<hr>
+  id: 1000<br />
+  name: John Smith<br />
+  address: 253 N 45th<br />
+    home phone: 555-555-5555<br />
+    cell phone: 666-555-5555<br />
+    e-mail: john@myexample.com<br />
+<hr>
+  id: 1001<br />
+  name: Jack Jones<br />
+  address: 417 Mulberry ln<br />
+    home phone: 123-456-4<br />
+    web: www.example.com<br />
+<hr>
+  id: 1002<br />
+  name: Jane Munson<br />
+  address: 5605 apple st<br />
+    cell phone: 0457878<br />
+```
+      
+Results of a database search (eg ADODB or PEAR) are assigned to Smarty
+
+```php      
+<?php
+$sql = 'select id, name, home, cell, email from contacts '
+      ."where name like '$foo%' ";
+$smarty->assign('contacts', $db->getAll($sql));
+```
+
+The template to output the database result in a HTML table
+
+```smarty
+<table>
+    <tr><th>&nbsp;</th><th>Name</th><th>Home</th><th>Cell</th><th>Email</th></tr>
+    {section name=co loop=$contacts}
+      <tr>
+        <td><a href="view.php?id={$contacts[co].id}">view</a></td>
+        <td>{$contacts[co].name}</td>
+        <td>{$contacts[co].home}</td>
+        <td>{$contacts[co].cell}</td>
+        <td>{$contacts[co].email}</td>
+      <tr>
+    {sectionelse}
+      <tr><td colspan="5">No items found</td></tr>
+    {/section}
+</table>
+```
+
+## .index
+`index` contains the current array index, starting with zero or the
+`start` attribute if given. It increments by one or by the `step`
+attribute if given.
+
+> **Note**
+>
+> If the `step` and `start` properties are not modified, then this works
+> the same as the [`iteration`](#iteration) property,
+> except it starts at zero instead of one.
+
+> **Note**
+>
+> `$custid[customer.index]` and `$custid[customer]` are identical.
+
+```smarty
+{section name=customer loop=$custid}
+  {$smarty.section.customer.index} id: {$custid[customer]}<br />
+{/section}
+```
+      
+The above example will output:
+
+```html
+0 id: 1000<br />
+1 id: 1001<br />
+2 id: 1002<br />
+```
+       
+
+## .index_prev
+
+`index_prev` is the previous loop index. On the first loop, this is set to -1.
+
+## .index_next
+
+`index_next` is the next loop index. On the last loop, this is still one
+more than the current index, respecting the setting of the `step`
+attribute, if given.
+
+```php
+<?php
+    $data = [1001,1002,1003,1004,1005];
+    $smarty->assign('rows',$data);
+```
+
+Template to output the above array in a table
+
+```smarty
+{* $rows[row.index] and $rows[row] are identical in meaning *}
+<table>
+  <tr>
+    <th>index</th><th>id</th>
+    <th>index_prev</th><th>prev_id</th>
+    <th>index_next</th><th>next_id</th>
+  </tr>
+{section name=row loop=$rows}
+  <tr>
+    <td>{$smarty.section.row.index}</td><td>{$rows[row]}</td>
+    <td>{$smarty.section.row.index_prev}</td><td>{$rows[row.index_prev]}</td>
+    <td>{$smarty.section.row.index_next}</td><td>{$rows[row.index_next]}</td>
+  </tr>
+{/section}
+</table>
+```
+      
+The above example will output a table containing the following:
+
+```
+    index  id    index_prev prev_id index_next next_id
+    0      1001  -1                 1          1002
+    1      1002  0          1001    2          1003
+    2      1003  1          1002    3          1004
+    3      1004  2          1003    4          1005
+    4      1005  3          1004    5
+```
+       
+## .iteration
+
+`iteration` contains the current loop iteration and starts at one.
+
+> **Note**
+>
+> This is not affected by the `{section}` properties `start`, `step` and
+> `max`, unlike the [`index`](#index) property.
+> `iteration` also starts with one instead of zero unlike `index`.
+> [`rownum`](#rownum) is an alias to `iteration`, they
+> are identical.
+
+```php
+<?php
+// array of 3000 to 3015
+$id = range(3000,3015);
+$smarty->assign('arr', $id);
+```
+
+Template to output every other element of the `$arr` array as `step=2`
+
+```smarty
+{section name=cu loop=$arr start=5 step=2}
+  iteration={$smarty.section.cu.iteration}
+  index={$smarty.section.cu.index}
+  id={$custid[cu]}<br />
+{/section}
+```
+      
+The above example will output:
+
+```html
+iteration=1 index=5 id=3005<br />
+iteration=2 index=7 id=3007<br />
+iteration=3 index=9 id=3009<br />
+iteration=4 index=11 id=3011<br />
+iteration=5 index=13 id=3013<br />
+iteration=6 index=15 id=3015<br />
+```
+
+Another example that uses the `iteration` property to output a table
+header block every five rows.
+
+```smarty
+<table>
+    {section name=co loop=$contacts}
+      {if $smarty.section.co.iteration is div by 5}
+        <tr><th>&nbsp;</th><th>Name</th><th>Home</th><th>Cell</th><th>Email</th></tr>
+      {/if}
+      <tr>
+        <td><a href="view.php?id={$contacts[co].id}">view<a></td>
+        <td>{$contacts[co].name}</td>
+        <td>{$contacts[co].home}</td>
+        <td>{$contacts[co].cell}</td>
+        <td>{$contacts[co].email}</td>
+      <tr>
+    {/section}
+</table>
+```
+
+An example that uses the `index` property to alternate a text color every
+third row.
+
+```smarty
+<table>
+  {section name=co loop=$contacts}
+    {if $smarty.section.co.index is even by 3}
+      <span style="color: #ffffff">{$contacts[co].name}</span>
+    {else}
+      <span style="color: #dddddd">{$contacts[co].name}</span>
+    {/if}
+  {/section}
+</table>
+```
+
+> **Note**
+>
+> The *"is div by"* syntax is a simpler alternative to the PHP mod
+> operator syntax. The mod operator is allowed:
+> `{if $smarty.section.co.iteration % 5 == 1}` will work just the same.
+
+> **Note**
+>
+> You can also use *"is odd by"* to reverse the alternating.
+
+## .first
+
+`first` is set to TRUE if the current `{section}` iteration is the initial one.
+
+## .last
+
+`last` is set to TRUE if the current section iteration is the final one.
+
+This example loops the `$customers` array, outputs a header block on the
+first iteration and on the last outputs the footer block. Also uses the
+[`total`](#total) property.
+
+```smarty
+{section name=customer loop=$customers}
+  {if $smarty.section.customer.first}
+    <table>
+    <tr><th>id</th><th>customer</th></tr>
+  {/if}
+
+  <tr>
+    <td>{$customers[customer].id}}</td>
+    <td>{$customers[customer].name}</td>
+  </tr>
+
+  {if $smarty.section.customer.last}
+    <tr><td></td><td>{$smarty.section.customer.total} customers</td></tr>
+    </table>
+  {/if}
+{/section}
+```
+
+## .rownum
+
+`rownum` contains the current loop iteration, starting with one. It is
+an alias to [`iteration`](#iteration), they work
+identically.
+
+## .loop
+
+`loop` contains the last index number that this {section} looped. This
+can be used inside or after the `{section}`.
+
+```smarty
+{section name=customer loop=$custid}
+  {$smarty.section.customer.index} id: {$custid[customer]}<br />
+{/section}
+There are {$smarty.section.customer.loop} customers shown above.
+```
+
+The above example will output:
+
+```html
+0 id: 1000<br />
+1 id: 1001<br />
+2 id: 1002<br />
+There are 3 customers shown above.
+```
+
+## .show
+
+`show` is used as a parameter to section and is a boolean value. If
+FALSE, the section will not be displayed. If there is a `{sectionelse}`
+present, that will be alternately displayed.
+
+Boolean `$show_customer_info` has been passed from the PHP application,
+to regulate whether this section shows.
+
+```smarty
+{section name=customer loop=$customers show=$show_customer_info}
+  {$smarty.section.customer.rownum} id: {$customers[customer]}<br />
+{/section}
+
+{if $smarty.section.customer.show}
+  the section was shown.
+{else}
+  the section was not shown.
+{/if}
+```
+      
+The above example will output:
+
+```html
+1 id: 1000<br />
+2 id: 1001<br />
+3 id: 1002<br />
+
+the section was shown.
+```
+       
+
+## .total
+
+`total` contains the number of iterations that this `{section}` will
+loop. This can be used inside or after a `{section}`.
+
+```smarty
+{section name=customer loop=$custid step=2}
+  {$smarty.section.customer.index} id: {$custid[customer]}<br />
+{/section}
+   There are {$smarty.section.customer.total} customers shown above.
+```
+      
+See also [`{foreach}`](./language-function-foreach.md),
+[`{for}`](./language-function-for.md), [`{while}`](./language-function-while.md)
+and [`$smarty.section`](../language-variables/language-variables-smarty.md#smartysection-languagevariablessmartyloops).

docs/designers/language-builtin-functions/language-function-setfilter.md

@@ -0,0 +1,43 @@
+# {setfilter}
+
+The `{setfilter}...{/setfilter}` block tag allows the definition of
+template instance's variable filters.
+
+SYNTAX: `{setfilter filter1\|filter2\|filter3\....}\...{/setfilter}`
+
+The filter can be:
+
+-   A variable filter plugin specified by it's name.
+
+-   A modifier specified by it's name and optional additional
+    parameter.
+
+`{setfilter}...{/setfilter}` blocks can be nested. The filter definition
+of inner blocks does replace the definition of the outer block.
+
+Template instance filters run in addition to other modifiers and
+filters. They run in the following order: modifier, default_modifier,
+$escape_html, registered variable filters, autoloaded variable
+filters, template instance's variable filters. Everything after
+default_modifier can be disabled with the `nofilter` flag.
+
+> **Note**
+>
+> The setting of template instance filters does not affect the output of
+> included subtemplates.
+
+## Examples
+
+```smarty
+<script>
+    {setfilter filter1}
+      {$foo} {* filter1 runs on output of $foo *}
+      {setfilter filter2|mod:true}
+        {$bar} {* filter2 and modifier mod runs on output of $bar *}
+      {/setfilter}
+      {$buh} {* filter1 runs on output of $buh *}
+    {/setfilter}
+    {$blar} {* no template instance filter runs on output of $blar}
+</script>
+```
+

docs/designers/language-builtin-functions/language-function-strip.md

@@ -0,0 +1,45 @@
+# {strip}
+
+Many times web designers run into the issue where white space and
+carriage returns affect the output of the rendered HTML (browser
+"features"), so you must run all your tags together in the template to
+get the desired results. This usually ends up in unreadable or
+unmanageable templates.
+
+Anything within `{strip}{/strip}` tags are stripped of the extra spaces
+or carriage returns at the beginnings and ends of the lines before they
+are displayed. This way you can keep your templates readable, and not
+worry about extra white space causing problems.
+
+> **Note**
+>
+> `{strip}{/strip}` does not affect the contents of template variables,
+> see the [strip modifier](../language-modifiers/language-modifier-strip.md) instead.
+
+```smarty
+{* the following will be all run into one line upon output *}
+{strip}
+    <table>
+     <tr>
+      <td>
+       <a href="#">
+        This is a test
+       </a>
+      </td>
+     </tr>
+    </table>
+{/strip}
+```
+      
+The above example will output:
+
+```html
+<table><tr><td><a href="#">This is a test</a></td></tr></table>
+```
+
+Notice that in the above example, all the lines begin and end with HTML
+tags. Be aware that all the lines are run together. If you have plain
+text at the beginning or end of any line, they will be run together, and
+may not be desired results.
+
+See also the [`strip`](../language-modifiers/language-modifier-strip.md) modifier.

docs/designers/language-builtin-functions/language-function-while.md

@@ -0,0 +1,20 @@
+# {while}
+
+`{while}` loops in Smarty have much the same flexibility as PHP
+[while](https://www.php.net/while) statements, with a few added features for
+the template engine. Every `{while}` must be paired with a matching
+`{/while}`. All [operators](../language-basic-syntax/language-syntax-operators.md) are recognized, such as *==*,
+*\|\|*, *or*, *&&*, *and*, etc and you can use modifiers as functions, such as *is_array()*.
+
+## Examples
+```smarty
+{while $foo > 0}
+  {$foo--}
+{/while}
+```
+
+The above example will count down the value of $foo until 1 is reached.
+
+See also [`{foreach}`](./language-function-foreach.md),
+[`{for}`](./language-function-for.md) and
+[`{section}`](./language-function-section.md).

docs/designers/language-combining-modifiers.md

@@ -0,0 +1,32 @@
+# Combining Modifiers
+
+You can apply any number of modifiers to a variable. They will be
+applied in the order they are combined, from left to right. They must be
+separated with a `|` (pipe) character.
+
+```php
+<?php
+
+$smarty->assign('articleTitle', 'Smokers are Productive, but Death Cuts Efficiency.');
+```
+
+where template is:
+
+```smarty
+{$articleTitle}
+{$articleTitle|upper|spacify}
+{$articleTitle|lower|spacify|truncate}
+{$articleTitle|lower|truncate:30|spacify}
+{$articleTitle|lower|spacify|truncate:30:". . ."}
+```
+      
+
+The above example will output:
+
+```
+Smokers are Productive, but Death Cuts Efficiency.
+S M O K E R S   A R ....snip....  H   C U T S   E F F I C I E N C Y .
+s m o k e r s   a r ....snip....  b u t   d e a t h   c u t s...
+s m o k e r s   a r e   p r o d u c t i v e ,   b u t . . .
+s m o k e r s   a r e   p. . .
+```

docs/designers/language-custom-functions/index.md

@@ -0,0 +1,19 @@
+# Custom Tags
+
+Smarty comes with several custom plugin functions that you can use in
+the templates.
+
+- [{counter}](language-function-counter.md)
+- [{cycle}](language-function-cycle.md)
+- [{eval}](language-function-eval.md)
+- [{fetch}](language-function-fetch.md)
+- [{html_checkboxes}](language-function-html-checkboxes.md)
+- [{html_image}](language-function-html-image.md)
+- [{html_options}](language-function-html-options.md)
+- [{html_radios}](language-function-html-radios.md)
+- [{html_select_date}](language-function-html-select-date.md)
+- [{html_select_time}](language-function-html-select-time.md)
+- [{html_table}](language-function-html-table.md)
+- [{mailto}](language-function-mailto.md)
+- [{math}](language-function-math.md)
+- [{textformat}](language-function-textformat.md)

docs/designers/language-custom-functions/language-function-counter.md

@@ -0,0 +1,45 @@
+# {counter}
+
+`{counter}` is used to print out a count. `{counter}` will remember the
+count on each iteration. You can adjust the number, the interval and the
+direction of the count, as well as determine whether to print the
+value. You can run multiple counters concurrently by supplying a unique
+name for each one. If you do not supply a name, the name "default" will
+be used.
+
+## Attributes
+
+| Attribute Name | Required | Description                                               |
+|----------------|----------|-----------------------------------------------------------|
+| name           | No       | The name of the counter                                   |
+| start          | No       | The initial number to start counting from (defaults to 1) |
+| skip           | No       | The interval to count by (defaults to 1)                  |
+| direction      | No       | The direction to count (up/down) (defaults to 'up')       |
+| print          | No       | Whether or not to print the value (defaults to true)      |
+| assign         | No       | the template variable the output will be assigned to      |
+
+If you supply the `assign` attribute, the output of the `{counter}`
+function will be assigned to this template variable instead of being
+output to the template.
+
+## Examples
+
+```smarty
+
+{* initialize the count *}
+{counter start=0 skip=2}<br />
+{counter}<br />
+{counter}<br />
+{counter}<br />
+
+```
+
+this will output:
+
+```html
+0<br />
+2<br />
+4<br />
+6<br />
+```
+      

docs/designers/language-custom-functions/language-function-cycle.md

@@ -0,0 +1,55 @@
+# {cycle}
+
+`{cycle}` is used to alternate a set of values. This makes it easy to
+for example, alternate between two or more colors in a table, or cycle
+through an array of values.
+
+## Attributes
+
+| Attribute Name | Required | Description                                                                                                 |
+|----------------|----------|-------------------------------------------------------------------------------------------------------------|
+| name           | No       | The name of the cycle                                                                                       |
+| values         | Yes      | The values to cycle through, either a comma delimited list (see delimiter attribute), or an array of values |
+| print          | No       | Whether to print the value or not (defaults to true)                                                        |
+| advance        | No       | Whether or not to advance to the next value (defaults to true)                                              |
+| delimiter      | No       | The delimiter to use in the values attribute (defaults to ',')                                              |
+| assign         | No       | The template variable the output will be assigned to                                                        |
+| reset          | No       | The cycle will be set to the first value and not advanced (defaults to false)                               |
+
+-   You can `{cycle}` through more than one set of values in a template
+    by supplying a `name` attribute. Give each `{cycle}` a unique
+    `name`.
+
+-   You can force the current value not to print with the `print`
+    attribute set to FALSE. This would be useful for silently skipping a
+    value.
+
+-   The `advance` attribute is used to repeat a value. When set to
+    FALSE, the next call to `{cycle}` will print the same value.
+
+-   If you supply the `assign` attribute, the output of the `{cycle}`
+    function will be assigned to a template variable instead of being
+    output to the template.
+
+## Examples
+```smarty
+{section name=rows loop=$data}
+    <tr class="{cycle values="odd,even"}">
+       <td>{$data[rows]}</td>
+    </tr>
+{/section}
+```
+
+The above template would output:
+
+```html
+    <tr class="odd">
+       <td>1</td>
+    </tr>
+    <tr class="even">
+       <td>2</td>
+    </tr>
+    <tr class="odd">
+       <td>3</td>
+    </tr>
+```

docs/designers/language-custom-functions/language-function-debug.md

@@ -0,0 +1,14 @@
+# {debug}
+
+`{debug}` dumps the debug console to the page. This works regardless of
+the [debug](../chapter-debugging-console.md) settings in the php script.
+Since this gets executed at runtime, this is only able to show the
+[assigned](../../programmers/api-functions/api-assign.md) variables; not the templates that are in use.
+However, you can see all the currently available variables within the
+scope of a template.
+
+| Attribute Name | Required | Description                                                |
+|----------------|----------|------------------------------------------------------------|
+| output         | No       | output type, html or javascript (defaults to 'javascript') |
+
+See also the [debugging console page](../chapter-debugging-console.md).

docs/designers/language-custom-functions/language-function-eval.md

@@ -0,0 +1,81 @@
+# {eval}
+
+`{eval}` is used to evaluate a variable as a template. This can be used
+for things like embedding template tags/variables into variables or
+tags/variables into config file variables.
+
+## Attributes
+
+| Attribute Name | Required | Description                                          |
+|----------------|----------|------------------------------------------------------|
+| var            | Yes      | Variable (or string) to evaluate                     |
+| assign         | No       | The template variable the output will be assigned to |
+
+If you supply the `assign` attribute, the output of the `{eval}`
+function will be assigned to this template variable instead of being
+output to the template.
+
+> **Note**
+>
+> -   Evaluated variables are treated the same as templates. They follow
+>     the same escapement and security features just as if they were
+>     templates.
+>
+> -   Evaluated variables are compiled on every invocation, the compiled
+>     versions are not saved! However, if you have [caching](../../api/caching/basics.md)
+>     enabled, the output will be cached with the rest of the template.
+>
+> -   If the content to evaluate doesn't change often, or is used
+>     repeatedly, consider using
+>     `{include file="string:{$template_code}"}` instead. This may cache
+>     the compiled state and thus doesn't have to run the (comparably
+>     slow) compiler on every invocation.
+
+## Examples
+
+The contents of the config file, `setup.conf`.
+
+```ini
+emphstart = <strong>
+emphend = </strong>
+title = Welcome to {$company}'s home page!
+ErrorCity = You must supply a {#emphstart#}city{#emphend#}.
+ErrorState = You must supply a {#emphstart#}state{#emphend#}.
+```
+
+Where the template is:
+
+```smarty
+{config_load file='setup.conf'}
+
+{eval var=$foo}
+{eval var=#title#}
+{eval var=#ErrorCity#}
+{eval var=#ErrorState# assign='state_error'}
+{$state_error}
+```
+      
+The above template will output:
+
+```html
+This is the contents of foo.
+Welcome to Foobar Pub & Grill's home page!
+You must supply a <strong>city</strong>.
+You must supply a <strong>state</strong>.
+```
+
+This outputs the server name (in uppercase) and IP. The assigned
+variable `$str` could be from a database query.
+
+```php
+<?php
+    $str = 'The server name is {$smarty.server.SERVER_NAME|upper} '
+           .'at {$smarty.server.SERVER_ADDR}';
+    $smarty->assign('foo',$str);
+```
+
+Where the template is:
+
+```smarty
+{eval var=$foo}
+```

docs/designers/language-custom-functions/language-function-fetch.md

@@ -0,0 +1,61 @@
+# {fetch}
+
+`{fetch}` is used to retrieve files from the local file system, http, or
+ftp and display the contents.
+
+## Attributes
+| Attribute | Required | Description                                          |
+|-----------|----------|------------------------------------------------------|
+| file      | Yes      | The file, http or ftp site to fetch                  |
+| assign    | No       | The template variable the output will be assigned to |
+
+-   If the file name begins with `http://`, the website page will be
+    fetched and displayed.
+
+    > **Note**
+    >
+    > This will not support http redirects, be sure to include a
+    > trailing slash on your web page fetches where necessary.
+
+-   If the file name begins with `ftp://`, the file will be downloaded
+    from the ftp server and displayed.
+
+-   For local files, either a full system file path must be given, or a
+    path relative to the executed php script.
+
+    > **Note**
+    >
+    > If security is enabled, and you are fetching a file from the local
+    > file system, `{fetch}` will only allow files from within the
+    > `$secure_dir` path of the security policy. See the
+    > [Security](../../api/security.md) section for details.
+
+-   If the `assign` attribute is set, the output of the `{fetch}`
+    function will be assigned to this template variable instead of being
+    output to the template.
+
+## Examples
+
+```smarty
+{* include some javascript in your template *}
+{fetch file='/export/httpd/www.example.com/docs/navbar.js'}
+
+{* embed some weather text in your template from another web site *}
+{fetch file='http://www.myweather.com/68502/'}
+
+{* fetch a news headline file via ftp *}
+{fetch file='ftp://user:password@ftp.example.com/path/to/currentheadlines.txt'}
+{* as above but with variables *}
+{fetch file="ftp://`$user`:`$password`@`$server`/`$path`"}
+
+{* assign the fetched contents to a template variable *}
+{fetch file='http://www.myweather.com/68502/' assign='weather'}
+{if $weather ne ''}
+  <div id="weather">{$weather}</div>
+{/if}
+```
+      
+
+See also [`{capture}`](../language-builtin-functions/language-function-capture.md),
+[`{eval}`](language-function-eval.md),
+[`{assign}`](../language-builtin-functions/language-function-assign.md) and [`fetch()`](../../programmers/api-functions/api-fetch.md).

docs/designers/language-custom-functions/language-function-html-checkboxes.md

@@ -0,0 +1,109 @@
+# {html_checkboxes}
+
+`{html_checkboxes}` is a [custom function](index.md)
+that creates an html checkbox group with provided data. It takes care of
+which item(s) are selected by default as well.
+
+## Attributes
+
+| Attribute Name | Required                            | Description                                                                                                                                                                                       |
+|----------------|-------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| name           | No                                  | Name of checkbox list (defaults to 'checkbox')                                                                                                                                                    |
+| values         | Yes, unless using options attribute | An array of values for checkbox buttons                                                                                                                                                           |
+| output         | Yes, unless using options attribute | An array of output for checkbox buttons                                                                                                                                                           |
+| selected       | No                                  | The selected checkbox element(s) as a string or array                                                                                                                                             |
+| options        | Yes, unless using values and output | An associative array of values and output                                                                                                                                                         |
+| separator      | No                                  | String of text to separate each checkbox item                                                                                                                                                     |
+| assign         | No                                  | Assign checkbox tags to an array instead of output                                                                                                                                                |
+| labels         | No                                  | Add <label\>-tags to the output (defaults to true)                                                                                                                                                |
+| label\_ids     | No                                  | Add id-attributes to <label\> and <input\> to the output (defaults to false)                                                                                                                      |
+| escape         | No                                  | Escape the output / content (values are always escaped) (defaults to true)                                                                                                                        |
+| strict         | No                                  | Will make the "extra" attributes *disabled* and *readonly* only be set, if they were supplied with either boolean *TRUE* or string *"disabled"* and *"readonly"* respectively (defaults to false) |
+
+-   Required attributes are `values` and `output`, unless you use `options` instead.
+
+-   All output is XHTML compliant.
+
+-   All parameters that are not in the list above are printed as
+    name/value-pairs inside each of the created <input\>-tags.
+
+> **Security note**
+>
+> The `separator` attribute is written into the generated HTML without escaping,
+> so it can contain markup such as `separator='<br />'`. If its value originates
+> from untrusted input, escape it yourself first to avoid cross-site scripting
+> (XSS). Option values and labels are escaped automatically.
+
+## Examples
+```php
+<?php
+
+$smarty->assign('cust_ids', array(1000,1001,1002,1003));
+$smarty->assign('cust_names', array(
+                                'Joe Schmoe',
+                                'Jack Smith',
+                                'Jane Johnson',
+                                'Charlie Brown')
+                              );
+$smarty->assign('customer_id', 1001);
+```
+
+where template is
+
+```smarty
+{html_checkboxes name='id' values=$cust_ids output=$cust_names selected=$customer_id  separator='<br />'}
+```
+
+or where PHP code is:
+
+```php
+<?php
+
+$smarty->assign(
+    'cust_checkboxes', 
+    [
+     1000 => 'Joe Schmoe',
+     1001 => 'Jack Smith',
+     1002 => 'Jane Johnson',
+     1003 => 'Charlie Brown',
+    ]
+);
+$smarty->assign('customer_id', 1001);
+```
+
+and the template is
+
+```smarty
+{html_checkboxes name='id' options=$cust_checkboxes selected=$customer_id separator='<br />'}
+```
+
+both examples will output:
+
+```html
+<label><input type="checkbox" name="id[]" value="1000" />Joe Schmoe</label><br />
+<label><input type="checkbox" name="id[]" value="1001" checked="checked" />Jack Smith</label>
+<br />
+<label><input type="checkbox" name="id[]" value="1002" />Jane Johnson</label><br />
+<label><input type="checkbox" name="id[]" value="1003" />Charlie Brown</label><br />
+```
+      
+
+```php
+<?php
+
+$sql = 'select type_id, types from contact_types order by type';
+$smarty->assign('contact_types',$db->getAssoc($sql));
+
+$sql = 'select contact_id, contact_type_id, contact '
+       .'from contacts where contact_id=12';
+$smarty->assign('contact',$db->getRow($sql));
+```
+
+The results of the database queries above would be output with.
+
+```smarty
+{html_checkboxes name='contact_type_id' options=$contact_types selected=$contact.contact_type_id separator='<br />'}
+```
+
+See also [`{html_radios}`](./language-function-html-radios.md) and
+[`{html_options}`](./language-function-html-options.md)

docs/designers/language-custom-functions/language-function-html-image.md

@@ -0,0 +1,58 @@
+# {html_image}
+
+`{html_image}` is a [custom function](index.md) that
+generates an HTML `<img>` tag. The `height` and `width` are
+automatically calculated from the image file if they are not supplied.
+
+## Attributes
+
+| Attribute Name | Required | Description                                                             |
+|----------------|----------|-------------------------------------------------------------------------|
+| file           | Yes      | name/path to image                                                      |
+| height         | No       | Height to display image (defaults to actual image height)               |
+| width          | No       | Width to display image (defaults to actual image width)                 |
+| basedir        | no       | Directory to base relative paths from (defaults to web server doc root) |
+| alt            | no       | Alternative description of the image                                    |
+| href           | no       | href value to link the image to                                         |
+| path\_prefix   | no       | Prefix for output path                                                  |
+
+-   `basedir` is the base directory that relative image paths are based
+    from. If not given, the web server's document root
+    `$_ENV['DOCUMENT_ROOT']` is used as the base. If security is
+    enabled, then the image must be located in the `$secure_dir` path of
+    the security policy. See the [Security](../../api/security.md)
+    section for details.
+
+-   `href` is the href value to link the image to. If link is supplied,
+    an `<a href="LINKVALUE"><a>` tag is placed around the image tag.
+
+-   `path_prefix` is an optional prefix string you can give the output
+    path. This is useful if you want to supply a different server name
+    for the image.
+
+-   All parameters that are not in the list above are printed as
+    name/value-pairs inside the created `<img>` tag.
+
+> **Note**
+>
+> `{html_image}` requires a hit to the disk to read the image and
+> calculate the height and width. If you don't use template
+> [caching](../../api/caching/basics.md), it is generally better to avoid `{html_image}`
+> and leave image tags static for optimal performance.
+
+## Examples
+
+```smarty
+{html_image file='pumpkin.jpg'}
+{html_image file='/path/from/docroot/pumpkin.jpg'}
+{html_image file='../path/relative/to/currdir/pumpkin.jpg'}
+```
+
+Example output of the above template would be:
+
+```html
+<img src="pumpkin.jpg" alt="" width="44" height="68" />
+<img src="/path/from/docroot/pumpkin.jpg" alt="" width="44" height="68" />
+<img src="../path/relative/to/currdir/pumpkin.jpg" alt="" width="44" height="68" />
+```
+      

docs/designers/language-custom-functions/language-function-html-options.md

@@ -0,0 +1,146 @@
+# {html_options}
+
+`{html_options}` is a [custom function](index.md) that
+creates the html `<select><option>` group with the assigned data. It
+takes care of which item(s) are selected by default as well.
+
+## Attributes
+
+| Attribute Name | Required                            | Description                                                                                                                                                                                             |
+|----------------|-------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| values         | Yes, unless using options attribute | An array of values for dropdown                                                                                                                                                                         |
+| output         | Yes, unless using options attribute | An array of output for dropdown                                                                                                                                                                         |
+| selected       | No                                  | The selected option element(s) as a string or array                                                                                                                                                     |
+| options        | Yes, unless using values and output | An associative array of values and output                                                                                                                                                               |
+| name           | No                                  | Name of select group                                                                                                                                                                                    |
+| strict         | No                                  | Will make the "extra" attributes *disabled* and *readonly* only be set, if they were supplied with either boolean *TRUE* or string *"disabled"* and *"readonly"* respectively (defaults to false) |
+
+-   Required attributes are `values` and `output`, unless you use the
+    combined `options` instead.
+
+-   If the optional `name` attribute is given, the `<select></select>`
+    tags are created, otherwise ONLY the `<option>` list is generated.
+
+-   If a given value is an array, it will treat it as an html
+    `<optgroup>`, and display the groups. Recursion is supported with
+    `<optgroup>`.
+
+-   All parameters that are not in the list above are printed as
+    name/value-pairs inside the `<select>` tag. They are ignored if the
+    optional `name` is not given.
+
+-   All output is XHTML compliant.
+
+## Examples
+
+```php
+<?php
+$smarty->assign('myOptions', [
+                                1800 => 'Joe Schmoe',
+                                9904 => 'Jack Smith',
+                                2003 => 'Charlie Brown']
+                                );
+$smarty->assign('mySelect', 9904);
+```
+
+The following template will generate a drop-down list. Note the presence
+of the `name` attribute which creates the `<select>` tags.
+
+```smarty
+{html_options name=foo options=$myOptions selected=$mySelect}
+```
+
+Output of the above example would be:
+
+```html
+<select name="foo">
+    <option value="1800">Joe Schmoe</option>
+    <option value="9904" selected="selected">Jack Smith</option>
+    <option value="2003">Charlie Brown</option>
+</select>   
+```
+
+```php
+<?php
+$smarty->assign('cust_ids', [56,92,13]);
+$smarty->assign('cust_names', [
+                              'Joe Schmoe',
+                              'Jane Johnson',
+                              'Charlie Brown']);
+$smarty->assign('customer_id', 92);
+```
+
+The above arrays would be output with the following template (note the
+use of the php [`count()`](https://www.php.net/function.count) function as a
+modifier to set the select size).
+
+```smarty
+<select name="customer_id" size="{$cust_names|@count}">
+   {html_options values=$cust_ids output=$cust_names selected=$customer_id}
+</select>
+```
+
+The above example would output:
+
+```html
+<select name="customer_id" size="3">
+    <option value="56">Joe Schmoe</option>
+    <option value="92" selected="selected">Jane Johnson</option>
+    <option value="13">Charlie Brown</option>
+</select>
+```
+
+```php
+<?php
+
+$sql = 'select type_id, types from contact_types order by type';
+$smarty->assign('contact_types',$db->getAssoc($sql));
+
+$sql = 'select contact_id, name, email, contact_type_id
+        from contacts where contact_id='.$contact_id;
+$smarty->assign('contact',$db->getRow($sql));
+
+```
+
+Where a template could be as follows. Note the use of the
+[`truncate`](../language-modifiers/language-modifier-truncate.md) modifier.
+
+```smarty
+<select name="type_id">
+    <option value='null'>-- none --</option>
+    {html_options options=$contact_types|truncate:20 selected=$contact.type_id}
+</select>
+```
+
+```php
+<?php
+$arr['Sport'] = array(6 => 'Golf', 9 => 'Cricket',7 => 'Swim');
+$arr['Rest']  = array(3 => 'Sauna',1 => 'Massage');
+$smarty->assign('lookups', $arr);
+$smarty->assign('fav', 7);
+```
+
+The script above and the following template
+
+```smarty
+{html_options name=foo options=$lookups selected=$fav}
+```
+
+would output:
+
+```html
+<select name="foo">
+    <optgroup label="Sport">
+        <option value="6">Golf</option>
+        <option value="9">Cricket</option>
+        <option value="7" selected="selected">Swim</option>
+    </optgroup>
+    <optgroup label="Rest">
+        <option value="3">Sauna</option>
+        <option value="1">Massage</option>
+    </optgroup>
+</select>
+```
+
+See also [`{html_checkboxes}`](./language-function-html-checkboxes.md) and
+[`{html_radios}`](./language-function-html-radios.md)

docs/designers/language-custom-functions/language-function-html-radios.md

@@ -0,0 +1,111 @@
+# {html_radios}
+
+`{html_radios}` is a [custom function](index.md) that
+creates an HTML radio button group. It also takes care of which item is
+selected by default as well.
+
+## Attributes
+
+| Attribute Name | Required                            | Description                                                                                                                                                                                       |
+|----------------|-------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| name           | No                                  | Name of radio list                                                                                                                                                                                |
+| values         | Yes, unless using options attribute | An array of values for radio buttons                                                                                                                                                              |
+| output         | Yes, unless using options attribute | An array of output for radio buttons                                                                                                                                                              |
+| selected       | No                                  | The selected radio element                                                                                                                                                                        |
+| options        | Yes, unless using values and output | An associative array of values and output                                                                                                                                                         |
+| separator      | No                                  | String of text to separate each radio item                                                                                                                                                        |
+| assign         | No                                  | Assign radio tags to an array instead of output                                                                                                                                                   |
+| labels         | No                                  | Add <label>-tags to the output (defaults to true)                                                                                                                                                 |
+| label\_ids     | No                                  | Add id-attributes to <label\> and <input\> to the output (defaults to false)                                                                                                                      |
+| escape         | No                                  | Escape the output / content (values are always escaped) (defaults to true)                                                                                                                        |
+| strict         | No                                  | Will make the "extra" attributes *disabled* and *readonly* only be set, if they were supplied with either boolean *TRUE* or string *"disabled"* and *"readonly"* respectively (defaults to false) |
+
+-   Required attributes are `values` and `output`, unless you use
+    `options` instead.
+
+-   All output is XHTML compliant.
+
+-   All parameters that are not in the list above are output as
+    name/value-pairs inside each of the created `<input>`-tags.
+
+> **Security note**
+>
+> The `separator` attribute is written into the generated HTML without escaping,
+> so it can contain markup such as `separator='<br />'`. If its value originates
+> from untrusted input, escape it yourself first to avoid cross-site scripting
+> (XSS). Option values and labels are escaped automatically.
+
+## Examples
+
+```php
+<?php
+
+$smarty->assign('cust_ids', array(1000,1001,1002,1003));
+$smarty->assign('cust_names', array(
+                              'Joe Schmoe',
+                              'Jack Smith',
+                              'Jane Johnson',
+                              'Charlie Brown')
+                              );
+$smarty->assign('customer_id', 1001);
+```
+      
+Where template is:
+
+```smarty
+{html_radios name='id' values=$cust_ids output=$cust_names
+       selected=$customer_id separator='<br />'}
+```
+
+
+```php
+<?php
+$smarty->assign('cust_radios', array(
+                               1000 => 'Joe Schmoe',
+                               1001 => 'Jack Smith',
+                               1002 => 'Jane Johnson',
+                               1003 => 'Charlie Brown'));
+$smarty->assign('customer_id', 1001);
+
+```
+
+Where template is:
+
+```smarty
+
+{html_radios name='id' options=$cust_radios
+     selected=$customer_id separator='<br />'}
+```
+      
+Both examples will output:
+
+```html
+<label><input type="radio" name="id" value="1000" />Joe Schmoe</label><br />
+<label><input type="radio" name="id" value="1001" checked="checked" />Jack Smith</label><br />
+<label><input type="radio" name="id" value="1002" />Jane Johnson</label><br />
+<label><input type="radio" name="id" value="1003" />Charlie Brown</label><br />
+```
+      
+```php
+
+<?php
+
+$sql = 'select type_id, types from contact_types order by type';
+$smarty->assign('contact_types',$db->getAssoc($sql));
+
+$sql = 'select contact_id, name, email, contact_type_id '
+        .'from contacts where contact_id='.$contact_id;
+$smarty->assign('contact',$db->getRow($sql));
+
+```
+
+The variable assigned from the database above would be output with the
+template:
+
+```smarty
+{html_radios name='contact_type_id' options=$contact_types
+     selected=$contact.contact_type_id separator='<br />'}
+```
+
+See also [`{html_checkboxes}`](language-function-html-checkboxes.md) and
+[`{html_options}`](language-function-html-options.md)

docs/designers/language-custom-functions/language-function-html-select-date.md

@@ -0,0 +1,126 @@
+# {html_select_date}
+
+`{html_select_date}` is a [custom function](index.md)
+that creates date dropdowns. It can display any or all of: year, month,
+and day. All parameters that are not in the list below are printed as
+name/value-pairs inside the `<select>` tags of day, month and year.
+
+## Attributes
+
+| Attribute Name     | Default            | Description                                                                                                                                                                                                                                                                                                                                                                                                    |
+|--------------------|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| prefix             | Date_              | What to prefix the var name with                                                                                                                                                                                                                                                                                                                                                                               |
+| time               |                    | What date/time to pre-select. Accepts timestamps, DateTime objects or any string parseable by [strtotime()](https://www.php.net/strtotime). If an array is given, the attributes field_array and prefix are used to identify the array elements to extract year, month and day from. Omitting this parameter or supplying a falsy value will select the current date. To prevent date selection, pass in NULL. |
+| start_year         | current year       | The first year in the dropdown, either year number, or relative to current year (+/- N)                                                                                                                                                                                                                                                                                                                        |
+| end_year           | same as start_year | The last year in the dropdown, either year number, or relative to current year (+/- N)                                                                                                                                                                                                                                                                                                                         |
+| display_days       | TRUE               | Whether to display days or not                                                                                                                                                                                                                                                                                                                                                                                 |
+| display_months     | TRUE               | Whether to display months or not                                                                                                                                                                                                                                                                                                                                                                               |
+| display_years      | TRUE               | Whether to display years or not                                                                                                                                                                                                                                                                                                                                                                                |
+| month_names        |                    | List of strings to display for months. array(1 =\> 'Jan', ..., 12 =\> 'Dec')                                                                                                                                                                                                                                                                                                                                   |
+| month_format       | \%B                | What format the month should be in (strftime)                                                                                                                                                                                                                                                                                                                                                                  |
+| day_format         | \%02d              | What format the day output should be in (sprintf)                                                                                                                                                                                                                                                                                                                                                              |
+| day_value_format   | \%d                | What format the day value should be in (sprintf)                                                                                                                                                                                                                                                                                                                                                               |
+| year_as_text       | FALSE              | Whether or not to display the year as text                                                                                                                                                                                                                                                                                                                                                                     |
+| reverse_years      | FALSE              | Display years in reverse order                                                                                                                                                                                                                                                                                                                                                                                 |
+| field_array        |                    | If a name is given, the select boxes will be drawn such that the results will be returned to PHP in the form of name\[Day\], name\[Year\], name\[Month\].                                                                                                                                                                                                                                                      |
+| day_size           |                    | Adds size attribute to select tag if given                                                                                                                                                                                                                                                                                                                                                                     |
+| month_size         |                    | Adds size attribute to select tag if given                                                                                                                                                                                                                                                                                                                                                                     |
+| year_size          |                    | Adds size attribute to select tag if given                                                                                                                                                                                                                                                                                                                                                                     |
+| all_extra          |                    | Adds extra attributes to all select/input tags if given                                                                                                                                                                                                                                                                                                                                                        |
+| day_extra          |                    | Adds extra attributes to select/input tags if given                                                                                                                                                                                                                                                                                                                                                            |
+| month_extra        |                    | Adds extra attributes to select/input tags if given                                                                                                                                                                                                                                                                                                                                                            |
+| year_extra         |                    | Adds extra attributes to select/input tags if given                                                                                                                                                                                                                                                                                                                                                            |
+| all_id             |                    | Adds id-attribute to all select/input tags if given                                                                                                                                                                                                                                                                                                                                                            |
+| day_id             |                    | Adds id-attribute to select/input tags if given                                                                                                                                                                                                                                                                                                                                                                |
+| month_id           |                    | Adds id-attribute to select/input tags if given                                                                                                                                                                                                                                                                                                                                                                |
+| year_id            |                    | Adds id-attribute to select/input tags if given                                                                                                                                                                                                                                                                                                                                                                |
+| field_order        | MDY                | The order in which to display the fields                                                                                                                                                                                                                                                                                                                                                                       |
+| field_separator    | \\n                | String printed between different fields                                                                                                                                                                                                                                                                                                                                                                        |
+| month_value_format | \%m                | strftime() format of the month values, default is %m for month numbers.                                                                                                                                                                                                                                                                                                                                        |
+| all_empty          |                    | If supplied then the first element of any select-box has this value as it's label and "" as it's value. This is useful to make the select-boxes read "Please select" for example.                                                                                                                                                                                                                              |
+| year_empty         |                    | If supplied then the first element of the year's select-box has this value as it's label and "" as it's value. This is useful to make the select-box read "Please select a year" for example. Note that you can use values like "-MM-DD" as time-attribute to indicate an unselected year.                                                                                                                     |
+| month_empty        |                    | If supplied then the first element of the month's select-box has this value as it's label and "" as it's value. . Note that you can use values like "YYYY\--DD" as time-attribute to indicate an unselected month.                                                                                                                                                                                             |
+| day_empty          |                    | If supplied then the first element of the day's select-box has this value as it's label and "" as it's value. Note that you can use values like "YYYY-MM-" as time-attribute to indicate an unselected day.                                                                                                                                                                                                    |
+
+> **Note**
+>
+> There is an useful php function on the [date tips page](../../appendixes/tips.md)
+> for converting `{html_select_date}` form values to a timestamp.
+
+> **Security note**
+>
+> The `*_extra` attributes, `field_separator`/`option_separator`, and any
+> unrecognised parameter (which is emitted as a raw attribute on the `<select>`
+> tag) are written into the generated HTML without escaping. If any of these
+> values originate from untrusted input, escape them yourself first to avoid
+> cross-site scripting (XSS).
+
+## Exaples
+
+Template code
+
+```smarty
+{html_select_date}
+```
+
+This will output:
+
+```html
+<select name="Date_Month">
+    <option value="1">January</option>
+    <option value="2">February</option>
+    <option value="3">March</option>
+      ..... snipped .....
+    <option value="10">October</option>
+    <option value="11">November</option>
+    <option value="12" selected="selected">December</option>
+</select>
+<select name="Date_Day">
+    <option value="1">01</option>
+    <option value="2">02</option>
+    <option value="3">03</option>
+      ..... snipped .....
+    <option value="11">11</option>
+    <option value="12">12</option>
+    <option value="13" selected="selected">13</option>
+    <option value="14">14</option>
+    <option value="15">15</option>
+      ..... snipped .....
+    <option value="29">29</option>
+    <option value="30">30</option>
+    <option value="31">31</option>
+</select>
+<select name="Date_Year">
+    <option value="2006" selected="selected">2006</option>
+</select>
+```
+      
+```smarty
+{* start and end year can be relative to current year *}
+{html_select_date prefix='StartDate' time=$time start_year='-5'
+       end_year='+1' display_days=false}
+```
+
+With 2000 as the current year the output:
+
+```html
+<select name="StartDateMonth">
+    <option value="1">January</option>
+    <option value="2">February</option>
+    .... snipped ....
+    <option value="11">November</option>
+    <option value="12" selected="selected">December</option>
+</select>
+<select name="StartDateYear">
+    <option value="1995">1995</option>
+    .... snipped ....
+    <option value="1999">1999</option>
+    <option value="2000" selected="selected">2000</option>
+    <option value="2001">2001</option>
+</select>
+```
+      
+See also [`{html_select_time}`](language-function-html-select-time.md),
+[`date_format`](../language-modifiers/language-modifier-date-format.md),
+[`$smarty.now`](../language-variables/language-variables-smarty.md#smartynow-languagevariablessmartynow) and the [date tips
+page](../../appendixes/tips.md#dates).

docs/designers/language-custom-functions/language-function-html-select-time.md

@@ -0,0 +1,108 @@
+# {html_select_time}
+
+`{html_select_time}` is a [custom function](index.md)
+that creates time dropdowns for you. It can display any or all of: hour,
+minute, second and meridian.
+
+The `time` attribute can have different formats. It can be a unique
+timestamp, a string of the format `YYYYMMDDHHMMSS` or a string that is
+parseable by PHP's [`strtotime()`](https://www.php.net/strtotime).
+
+## Attributes
+
+| Attribute Name        | Default                                                | Description                                                                                                                                                                                                                                                                                                                                                                              |
+|-----------------------|--------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| prefix                | Time\_                                                 | What to prefix the var name with                                                                                                                                                                                                                                                                                                                                                         |
+| time                  | current [timestamp](https://www.php.net/function.time) | What date/time to pre-select. Accepts  [timestamp](https://www.php.net/function.time), [DateTime](https://www.php.net/class.DateTime), mysql timestamp or any string parsable by [`strtotime()`](https://www.php.net/strtotime). If an array is given, the attributes field\_array and prefix are used to identify the array elements to extract hour, minute, second and meridian from. |
+| display\_hours        | TRUE                                                   | Whether or not to display hours                                                                                                                                                                                                                                                                                                                                                          |
+| display\_minutes      | TRUE                                                   | Whether or not to display minutes                                                                                                                                                                                                                                                                                                                                                        |
+| display\_seconds      | TRUE                                                   | Whether or not to display seconds                                                                                                                                                                                                                                                                                                                                                        |
+| display\_meridian     | TRUE                                                   | Whether or not to display meridian (am/pm)                                                                                                                                                                                                                                                                                                                                               |
+| use\_24\_hours        | TRUE                                                   | Whether or not to use 24 hour clock                                                                                                                                                                                                                                                                                                                                                      |
+| minute\_interval      | 1                                                      | Number interval in minute dropdown                                                                                                                                                                                                                                                                                                                                                       |
+| second\_interval      | 1                                                      | Number interval in second dropdown                                                                                                                                                                                                                                                                                                                                                       |
+| hour\_format          | \%02d                                                  | What format the hour label should be in (sprintf)                                                                                                                                                                                                                                                                                                                                        |
+| hour\_value\_format   | \%20d                                                  | What format the hour value should be in (sprintf)                                                                                                                                                                                                                                                                                                                                        |
+| minute\_format        | \%02d                                                  | What format the minute label should be in (sprintf)                                                                                                                                                                                                                                                                                                                                      |
+| minute\_value\_format | \%20d                                                  | What format the minute value should be in (sprintf)                                                                                                                                                                                                                                                                                                                                      |
+| second\_format        | \%02d                                                  | What format the second label should be in (sprintf)                                                                                                                                                                                                                                                                                                                                      |
+| second\_value\_format | \%20d                                                  | What format the second value should be in (sprintf)                                                                                                                                                                                                                                                                                                                                      |
+| field\_array          | n/a                                                    | Outputs values to array of this name                                                                                                                                                                                                                                                                                                                                                     |
+| all\_extra            | null                                                   | Adds extra attributes to select/input tags if given                                                                                                                                                                                                                                                                                                                                      |
+| hour\_extra           | null                                                   | Adds extra attributes to select/input tags if given                                                                                                                                                                                                                                                                                                                                      |
+| minute\_extra         | null                                                   | Adds extra attributes to select/input tags if given                                                                                                                                                                                                                                                                                                                                      |
+| second\_extra         | null                                                   | Adds extra attributes to select/input tags if given                                                                                                                                                                                                                                                                                                                                      |
+| meridian\_extra       | null                                                   | Adds extra attributes to select/input tags if given                                                                                                                                                                                                                                                                                                                                      |
+| field\_separator      | \\n                                                    | String printed between different fields                                                                                                                                                                                                                                                                                                                                                  |
+| option\_separator     | \\n                                                    | String printed between different options of a field                                                                                                                                                                                                                                                                                                                                      |
+| all\_id               | null                                                   | Adds id-attribute to all select/input tags if given                                                                                                                                                                                                                                                                                                                                      |
+| hour\_id              | null                                                   | Adds id-attribute to select/input tags if given                                                                                                                                                                                                                                                                                                                                          |
+| minute\_id            | null                                                   | Adds id-attribute to select/input tags if given                                                                                                                                                                                                                                                                                                                                          |
+| second\_id            | null                                                   | Adds id-attribute to select/input tags if given                                                                                                                                                                                                                                                                                                                                          |
+| meridian\_id          | null                                                   | Adds id-attribute to select/input tags if given                                                                                                                                                                                                                                                                                                                                          |
+| all\_empty            | null                                                   | If supplied then the first element of any select-box has this value as it's label and "" as it's value. This is useful to make the select-boxes read "Please select" for example.                                                                                                                                                                                                        |
+| hour\_empty           | null                                                   | If supplied then the first element of the hour's select-box has this value as it's label and "" as it's value. This is useful to make the select-box read "Please select an hour" for example.                                                                                                                                                                                           |
+| minute\_empty         | null                                                   | If supplied then the first element of the minute's select-box has this value as it's label and "" as it's value. This is useful to make the select-box read "Please select an minute" for example.                                                                                                                                                                                       |
+| second\_empty         | null                                                   | If supplied then the first element of the second's select-box has this value as it's label and "" as it's value. This is useful to make the select-box read "Please select an second" for example.                                                                                                                                                                                       |
+| meridian\_empty       | null                                                   | If supplied then the first element of the meridian's select-box has this value as it's label and "" as it's value. This is useful to make the select-box read "Please select an meridian" for example.                                                                                                                                                                                   |
+
+
+> **Security note**
+>
+> The `*_extra` attributes, `field_separator`/`option_separator`, and any
+> unrecognised parameter (which is emitted as a raw attribute on the `<select>`
+> tag) are written into the generated HTML without escaping. If any of these
+> values originate from untrusted input, escape them yourself first to avoid
+> cross-site scripting (XSS).
+
+## Examples
+
+```smarty
+{html_select_time use_24_hours=true}
+```
+     
+At 9:20 and 23 seconds in the morning the template above would output:
+
+```html
+<select name="Time_Hour">
+    <option value="00">00</option>
+    <option value="01">01</option>
+    ... snipped ....
+    <option value="08">08</option>
+    <option value="09" selected>09</option>
+    <option value="10">10</option>
+    ... snipped ....
+    <option value="22">22</option>
+    <option value="23">23</option>
+</select>
+<select name="Time_Minute">
+    <option value="00">00</option>
+    <option value="01">01</option>
+    ... snipped ....
+    <option value="19">19</option>
+    <option value="20" selected>20</option>
+    <option value="21">21</option>
+    ... snipped ....
+    <option value="58">58</option>
+    <option value="59">59</option>
+</select>
+<select name="Time_Second">
+    <option value="00">00</option>
+    <option value="01">01</option>
+    ... snipped ....
+    <option value="22">22</option>
+    <option value="23" selected>23</option>
+    <option value="24">24</option>
+    ... snipped ....
+    <option value="58">58</option>
+    <option value="59">59</option>
+</select>
+<select name="Time_Meridian">
+    <option value="am" selected>AM</option>
+    <option value="pm">PM</option>
+</select>
+```
+
+See also [`$smarty.now`](../language-variables/language-variables-smarty.md#smartynow-languagevariablessmartynow),
+[`{html_select_date}`](language-function-html-select-date.md) and the
+[date tips page](../../appendixes/tips.md#dates).

docs/designers/language-custom-functions/language-function-html-table.md

@@ -0,0 +1,102 @@
+# {html_table}
+
+`{html_table}` is a [custom function](index.md) that
+dumps an array of data into an HTML `<table>`.
+
+## Attributes
+
+| Attribute Name | Required | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
+|----------------|----------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| loop           | Yes      | Array of data to loop through                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
+| cols           | No       | Number of columns in the table or a comma-separated list of column heading names or an array of column heading names.if the cols-attribute is empty, but rows are given, then the number of cols is computed by the number of rows and the number of elements to display to be just enough cols to display all elements. If both, rows and cols, are omitted cols defaults to 3. if given as a list or array, the number of columns is computed from the number of elements in the list or array. |
+| rows           | No       | Number of rows in the table. if the rows-attribute is empty, but cols are given, then the number of rows is computed by the number of cols and the number of elements to display to be just enough rows to display all elements.                                                                                                                                                                                                                                                                  |
+| inner          | No       | Direction of consecutive elements in the loop-array to be rendered. *cols* means elements are displayed col-by-col. *rows* means elements are displayed row-by-row.                                                                                                                                                                                                                                                                                                                               |
+| caption        | No       | Text to be used for the `<caption>` element of the table                                                                                                                                                                                                                                                                                                                                                                                                                                          |
+| table\_attr    | No       | Attributes for `<table>` tag (defaults to 'border="1"')                                                                                                                                                                                                                                                                                                                                                                                                                                           |
+| th\_attr       | No       | Attributes for `<th>` tag (arrays are cycled)                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
+| tr\_attr       | No       | attributes for `<tr>` tag (arrays are cycled)                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
+| td\_attr       | No       | Attributes for `<td>` tag (arrays are cycled)                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
+| trailpad       | No       | Value to pad the trailing cells on last row with (if any) (defaults to '&nbsp;')                                                                                                                                                                                                                                                                                                                                                                                                                  |
+| hdir           | No       | Direction of each row to be rendered. possible values: *right* (left-to-right), and *left* (right-to-left) (defaults to 'right')                                                                                                                                                                                                                                                                                                                                                                  |
+| vdir           | No       | Direction of each column to be rendered. possible values: *down* (top-to-bottom), *up* (bottom-to-top) (defaults to 'down')                                                                                                                                                                                                                                                                                                                                                                       |
+
+-   The `cols` attribute determines how many columns will be in the
+    table.
+
+-   The `table_attr`, `tr_attr` and `td_attr` values determine the
+    attributes given to the `<table>`, `<tr>` and `<td>` tags.
+
+-   If `tr_attr` or `td_attr` are arrays, they will be cycled through.
+
+-   `trailpad` is the value put into the trailing cells on the last
+    table row if there are any present.
+
+> **Security note**
+>
+> The `loop`/`cols` data and the `caption`, `trailpad`, `table_attr`, `tr_attr`,
+> `td_attr` and `th_attr` attributes are written into the generated HTML without
+> escaping (this is by design — e.g. `table_attr='border="1"'`). If any of these
+> values originate from untrusted input, escape them yourself first (e.g. with the
+> [`escape`](../language-modifiers/language-modifier-escape.md) modifier) to avoid
+> cross-site scripting (XSS).
+
+## Examples
+
+```php
+<?php
+$smarty->assign( 'data', array(1,2,3,4,5,6,7,8,9) );
+$smarty->assign( 'tr', array('bgcolor="#eeeeee"','bgcolor="#dddddd"') );
+$smarty->display('index.tpl');
+```
+
+The variables assigned from php could be displayed as these three
+examples demonstrate. Each example shows the template followed by
+output.
+
+** Example 1 **
+```smarty
+{html_table loop=$data}
+```
+```html
+<table border="1">
+    <tbody>
+        <tr><td>1</td><td>2</td><td>3</td></tr>
+        <tr><td>4</td><td>5</td><td>6</td></tr>
+        <tr><td>7</td><td>8</td><td>9</td></tr>
+    </tbody>
+</table>
+```
+
+** Example 2 **
+```smarty
+{html_table loop=$data cols=4 table_attr='border="0"'}
+```
+```html
+<table border="0">
+    <tbody>
+        <tr><td>1</td><td>2</td><td>3</td><td>4</td></tr>
+        <tr><td>5</td><td>6</td><td>7</td><td>8</td></tr>
+        <tr><td>9</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
+    </tbody>
+</table>
+```
+
+** Example 3 **
+```smarty
+{html_table loop=$data cols="first,second,third,fourth" tr_attr=$tr}
+```
+```html
+<table border="1">
+    <thead>
+        <tr>
+        <th>first</th><th>second</th><th>third</th><th>fourth</th>
+        </tr>
+    </thead>
+    <tbody>
+        <tr bgcolor="#eeeeee"><td>1</td><td>2</td><td>3</td><td>4</td></tr>
+        <tr bgcolor="#dddddd"><td>5</td><td>6</td><td>7</td><td>8</td></tr>
+        <tr bgcolor="#eeeeee"><td>9</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
+    </tbody>
+</table>
+```
+