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