Fix incorrect references to sub_match having a .last member.

Fixes https://github.com/boostorg/regex/issues/115.

# Fixed Conflicts:
#	doc/html/index.html

.github/workflows/ci.yml

@@ -1,424 +0,0 @@
-# Copyright 2020 Evan Miller
-# Copyright 2020 Matt Borland
-# Distributed under the Boost Software License, Version 1.0.
-# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
-
-name: CI
-on:
-  push:
-    branches:
-      - master
-      - develop
-  pull_request:
-  release:
-    types: [published, created, edited]
-jobs:
-  ubuntu-focal:
-    runs-on: ubuntu-20.04
-    strategy:
-      fail-fast: false
-      matrix:
-        compiler: [ g++-9, g++-10, clang++-9, clang++-10 ]
-        standard: [ c++11, c++14, c++17, c++2a ]
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: '0'
-      - uses: mstachniuk/ci-skip@v1
-        with:
-          commit-filter: '[skip ci];[ci skip];[CI SKIP];[SKIP CI];***CI SKIP***;***SKIP CI***;[windows];[Windows];[WINDOWS];[apple];[Apple];[APPLE]'
-          commit-filter-separator: ';'
-          fail-fast: true
-      - name: Set TOOLSET
-        run: echo ${{ matrix.compiler }} | awk '/^g/ { print "TOOLSET=gcc" } /^clang/ { print "TOOLSET=clang" }' >> $GITHUB_ENV
-      - name: Add repository
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Install packages
-        run: sudo apt install g++-9 g++-10 clang-9 clang-10  libicu-dev
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: cp -r $GITHUB_WORKSPACE/* libs/regex
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py -I example -g "--jobs 3" regex
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: ./bootstrap.sh
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: ./b2 headers
-        working-directory: ../boost-root
-      - name: Generate user config
-        run: 'echo "using $TOOLSET : : ${{ matrix.compiler }} : <cxxflags>-std=${{ matrix.standard }} ;" > ~/user-config.jam'
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ../../../b2 config_info_travis_install toolset=$TOOLSET
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: ./config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ../../../b2 toolset=$TOOLSET
-        working-directory: ../boost-root/libs/regex/test
-  ubuntu-bionic:
-    runs-on: ubuntu-18.04
-    strategy:
-      fail-fast: false
-      matrix:
-        compiler: [ g++-7, g++-8, clang++-7, clang++-8 ]
-        standard: [ c++11, c++14, c++17 ]
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: '0'
-      - uses: mstachniuk/ci-skip@v1
-        with:
-          commit-filter: '[skip ci];[ci skip];[CI SKIP];[SKIP CI];***CI SKIP***;***SKIP CI***;[windows];[Windows];[WINDOWS];[apple];[Apple];[APPLE]'
-          commit-filter-separator: ';'
-          fail-fast: true
-      - name: Set TOOLSET
-        run: echo ${{ matrix.compiler }} | awk '/^g/ { print "TOOLSET=gcc" } /^clang/ { print "TOOLSET=clang" }' >> $GITHUB_ENV
-      - name: Add repository
-        run: sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test"
-      - name: Install packages
-        run: sudo apt install g++-7 g++-8 clang-7 clang-8 libicu-dev
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: cp -r $GITHUB_WORKSPACE/* libs/regex
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py -I example -g "--jobs 3" regex
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: ./bootstrap.sh
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: ./b2 headers
-        working-directory: ../boost-root
-      - name: Generate user config
-        run: 'echo "using $TOOLSET : : ${{ matrix.compiler }} : <cxxflags>-std=${{ matrix.standard }} ;" > ~/user-config.jam'
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ../../../b2 config_info_travis_install toolset=$TOOLSET
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: ./config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ../../../b2 toolset=$TOOLSET define=CI_SUPPRESS_KNOWN_ISSUES define=SLOW_COMPILER
-        working-directory: ../boost-root/libs/regex/test
-  macos:
-    runs-on: macos-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        toolset: [ clang ]
-        standard: [ 11, 14, 17, 2a ]
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: '0'
-      - uses: mstachniuk/ci-skip@v1
-        with:
-          commit-filter: '[skip ci];[ci skip];[CI SKIP];[SKIP CI];***CI SKIP***;***SKIP CI***;[windows];[Windows];[WINDOWS];[linux];[Linux];[LINUX]'
-          commit-filter-separator: ';'
-          fail-fast: true
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: cp -r $GITHUB_WORKSPACE/* libs/regex
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py -I example -g "--jobs 3" regex
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: ./bootstrap.sh
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: ./b2 headers
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ../../../b2 config_info_travis_install toolset=${{ matrix.toolset }} cxxstd=${{ matrix.standard }}
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: ./config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ../../../b2 toolset=${{ matrix.toolset }} cxxstd=${{ matrix.standard }}
-        working-directory: ../boost-root/libs/regex/test
-  windows_gcc:
-    runs-on: windows-latest
-    defaults:
-      run:
-        shell: cmd
-    env:
-      ARGS: toolset=${{ matrix.toolset }} address-model=64 cxxstd=${{ matrix.standard }}
-    strategy:
-      fail-fast: false
-      matrix:
-        toolset: [ gcc ]
-        standard: [ 11, 14, 17, 2a ]
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: '0'
-      - uses: mstachniuk/ci-skip@v1
-        with:
-          commit-filter: '[skip ci];[ci skip];[CI SKIP];[SKIP CI];***CI SKIP***;***SKIP CI***;[apple];[Apple];[APPLE];[linux];[Linux];[LINUX]'
-          commit-filter-separator: ';'
-          fail-fast: true
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: xcopy /s /e /q %GITHUB_WORKSPACE% libs\regex
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py -I example -g "--jobs 3" regex
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: bootstrap
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: b2 headers
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ..\..\..\b2 config_info_travis_install %ARGS%
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ..\..\..\b2 --hash %ARGS%
-        working-directory: ../boost-root/libs/regex/test
-  windows_msvc_14_0:
-    runs-on: windows-2019
-    defaults:
-      run:
-        shell: cmd
-    env:
-      ARGS: toolset=${{ matrix.toolset }} address-model=64 cxxstd=${{ matrix.standard }}
-    strategy:
-      fail-fast: false
-      matrix:
-        toolset: [ msvc-14.0 ]
-        standard: [ 14, 17 ]
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: '0'
-      - uses: mstachniuk/ci-skip@v1
-        with:
-          commit-filter: '[skip ci];[ci skip];[CI SKIP];[SKIP CI];***CI SKIP***;***SKIP CI***;[apple];[Apple];[APPLE];[linux];[Linux];[LINUX]'
-          commit-filter-separator: ';'
-          fail-fast: true
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: xcopy /s /e /q %GITHUB_WORKSPACE% libs\regex
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py -I example -g "--jobs 3" regex
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: bootstrap
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: b2 headers
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ..\..\..\b2 config_info_travis_install %ARGS%
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ..\..\..\b2 --hash %ARGS%
-        working-directory: ../boost-root/libs/regex/test
-  windows_msvc_14_2:
-    runs-on: windows-2019
-    defaults:
-      run:
-        shell: cmd
-    env:
-      ARGS: toolset=${{ matrix.toolset }} address-model=64 cxxstd=${{ matrix.standard }}
-    strategy:
-      fail-fast: false
-      matrix:
-        toolset: [ msvc-14.2 ]
-        standard: [ 14, 17, latest ]
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: '0'
-      - uses: mstachniuk/ci-skip@v1
-        with:
-          commit-filter: '[skip ci];[ci skip];[CI SKIP];[SKIP CI];***CI SKIP***;***SKIP CI***;[apple];[Apple];[APPLE];[linux];[Linux];[LINUX]'
-          commit-filter-separator: ';'
-          fail-fast: true
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: xcopy /s /e /q %GITHUB_WORKSPACE% libs\regex
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py -I example -g "--jobs 3" regex
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: bootstrap
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: b2 headers
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ..\..\..\b2 config_info_travis_install %ARGS%
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ..\..\..\b2 --hash %ARGS%
-        working-directory: ../boost-root/libs/regex/test
-  windows_msvc_14_3:
-    runs-on: windows-2022
-    defaults:
-      run:
-        shell: cmd
-    env:
-      ARGS: toolset=${{ matrix.toolset }} address-model=64 cxxstd=${{ matrix.standard }}
-    strategy:
-      fail-fast: false
-      matrix:
-        toolset: [ msvc-14.3 ]
-        standard: [ 14, 17, 20, latest ]
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: '0'
-      - uses: mstachniuk/ci-skip@v1
-        with:
-          commit-filter: '[skip ci];[ci skip];[CI SKIP];[SKIP CI];***CI SKIP***;***SKIP CI***;[apple];[Apple];[APPLE];[linux];[Linux];[LINUX]'
-          commit-filter-separator: ';'
-          fail-fast: true
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: xcopy /s /e /q %GITHUB_WORKSPACE% libs\regex
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py -I example -g "--jobs 3" regex
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: bootstrap
-        working-directory: ../boost-root
-      - name: Generate headers
-        run: b2 headers
-        working-directory: ../boost-root
-      - name: Config info install
-        run: ..\..\..\b2 config_info_travis_install %ARGS%
-        working-directory: ../boost-root/libs/config/test
-      - name: Config info
-        run: config_info_travis
-        working-directory: ../boost-root/libs/config/test
-      - name: Test
-        run: ..\..\..\b2 --hash %ARGS%
-        working-directory: ../boost-root/libs/regex/test
-  ubuntu-cmake-install:
-    runs-on: ubuntu-20.04
-    strategy:
-      fail-fast: false
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: '0'
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: cp -r $GITHUB_WORKSPACE/* libs/regex
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py -I example -g "--jobs 3" regex
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: ./bootstrap.sh
-        working-directory: ../boost-root
-      - name: CMake Test
-        working-directory: ../boost-root
-        run: | 
-         mkdir __build__ && cd __build__
-         cmake -DBOOST_ENABLE_CMAKE=1 -DBoost_VERBOSE=1 -DBOOST_INCLUDE_LIBRARIES="regex;core" -DBUILD_TESTING=OFF -DCMAKE_INSTALL_PREFIX=~/.local ..
-         cmake --build . --target install
-         cd ../libs/regex/test/cmake_install_test && mkdir __build__ && cd __build__
-         cmake -DCMAKE_INSTALL_PREFIX=~/.local ..
-         cmake --build .
-         cmake --build . --target check
-  ubuntu-cmake-check:
-    runs-on: ubuntu-20.04
-    strategy:
-      fail-fast: false
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: '0'
-      - name: Install packages
-        run: sudo apt install libicu-dev
-      - name: Checkout main boost
-        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
-      - name: Update tools/boostdep
-        run: git submodule update --init tools/boostdep
-        working-directory: ../boost-root
-      - name: Copy files
-        run: cp -r $GITHUB_WORKSPACE/* libs/regex
-        working-directory: ../boost-root
-      - name: Install deps
-        run: python tools/boostdep/depinst/depinst.py -I example -g "--jobs 3" regex
-        working-directory: ../boost-root
-      - name: Bootstrap
-        run: ./bootstrap.sh
-        working-directory: ../boost-root
-      - name: CMake Test
-        working-directory: ../boost-root/libs/regex/test
-        run: | 
-          cd cmake_subdir_test && mkdir __build__ && cd __build__
-          cmake ..
-          cmake --build .
-          cmake --build . --target check
-          rm -rf *
-          echo Standalone configuration
-          cmake -DBOOST_REGEX_STANDALONE=on ..
-          cmake --build .
-          cmake --build . --target check
-          cd ../../cmake_subdir_test_icu && mkdir __build__ && cd __build__
-          cmake ..
-          cmake --build .
-          cmake --build . --target check
-          rm -rf *
-          echo Standalone configuration
-          cmake -DBOOST_REGEX_STANDALONE=on ..
-          cmake --build .
-          cmake --build . --target check

.travis.yml

@@ -0,0 +1,285 @@
+# Copyright 2016, 2017 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
+
+language: cpp
+
+branches:
+  only:
+    - master
+    - develop
+    - /feature\/.*/
+
+env:
+  matrix:
+    - BOGUS_JOB=true
+
+matrix:
+
+  exclude:
+    - env: BOGUS_JOB=true
+
+  include:
+    - os: linux
+      env: TEST_CMAKE=true # variables unused - just for identification in travis ci gui
+      script:
+        - mkdir __build__ && cd __build__
+        - cmake .. -DBOOST_ENABLE_CMAKE=ON -DBOOST_INCLUDE_LIBRARIES=regex -DBOOST_REGEX_INCLUDE_EXAMPLES=ON
+        - cmake --build .
+
+    - os: linux
+      env: TEST_CMAKE=true BUILD_SHARED_LIBS=On # variables unused - just for identification in travis ci gui
+      script:
+        - mkdir __build__ && cd __build__
+        - cmake .. -DBUILD_SHARED_LIBS=ON -DBOOST_ENABLE_CMAKE=ON -DBOOST_INCLUDE_LIBRARIES=regex -DBOOST_REGEX_INCLUDE_EXAMPLES=ON
+        - cmake --build .
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++ CXXSTD=03
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-4.7 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - g++-4.7
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-4.8 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - g++-4.8
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-4.9 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - g++-4.9
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-5 CXXSTD=03,11,14
+      addons:
+        apt:
+          packages:
+            - g++-5
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-6 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - g++-6
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-6 CXXSTD=14,1z
+      addons:
+        apt:
+          packages:
+            - g++-6
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-6 CXXSTD=03,11 CXXSTD_DIALECT=cxxstd-dialect=gnu
+      addons:
+        apt:
+          packages:
+            - g++-6
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-6 CXXSTD=14,1z CXXSTD_DIALECT=cxxstd-dialect=gnu
+      addons:
+        apt:
+          packages:
+            - g++-6
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-7 CXXSTD=03,11 CXXSTD_DIALECT=cxxstd-dialect=gnu
+      addons:
+        apt:
+          packages:
+            - g++-7
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-7 CXXSTD=14,1z CXXSTD_DIALECT=cxxstd-dialect=gnu
+      addons:
+        apt:
+          packages:
+            - g++-7
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-8 CXXSTD=03,11 CXXSTD_DIALECT=cxxstd-dialect=gnu
+      addons:
+        apt:
+          packages:
+            - g++-8
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      env: TOOLSET=gcc COMPILER=g++-8 CXXSTD=14,1z CXXSTD_DIALECT=cxxstd-dialect=gnu
+      addons:
+        apt:
+          packages:
+            - g++-8
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11
+
+    - os: linux
+      env: TOOLSET=clang COMPILER=clang++-3.5 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - clang-3.5
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.5
+
+    - os: linux
+      env: TOOLSET=clang COMPILER=clang++-3.6 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - clang-3.6
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.6
+
+    - os: linux
+      env: TOOLSET=clang COMPILER=clang++-3.7 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - clang-3.7
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.7
+
+    - os: linux
+      env: TOOLSET=clang COMPILER=clang++-3.8 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - clang-3.8
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.8
+
+    - os: linux
+      env: TOOLSET=clang COMPILER=clang++-3.8 CXXSTD=14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.8
+            - libstdc++-4.9-dev
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.8
+
+    - os: linux
+      env: TOOLSET=clang COMPILER=clang++-3.9 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - clang-3.9
+            - libstdc++-4.9-dev
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.9
+
+    - os: linux
+      env: TOOLSET=clang COMPILER=clang++-3.9 CXXSTD=14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.9
+            - libstdc++-4.9-dev
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.9
+
+    - os: osx
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11
+      osx_image: xcode8.3
+
+    - os: osx
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=14,1z
+      osx_image: xcode8.3
+
+    - os: osx
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=11
+      osx_image: xcode8.2
+
+    - os: osx
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=11
+      osx_image: xcode8.1
+
+    - os: osx
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=11
+      osx_image: xcode8.0
+
+    - os: osx
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=11
+      osx_image: xcode7.3
+
+    - os: osx
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=11
+      osx_image: xcode6.4
+      # On this image, git doesn't support --jobs 3
+      install:
+        - BOOST_BRANCH=develop && [ "$TRAVIS_BRANCH" == "master" ] && BOOST_BRANCH=master || true
+        - cd ..
+        - git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
+        - cd boost-root
+        - git submodule update --init tools/boostdep
+        - cp -r $TRAVIS_BUILD_DIR/* libs/regex
+        - python tools/boostdep/depinst/depinst.py -I example regex
+        - ./bootstrap.sh
+        - ./b2 headers
+
+
+install:
+  - BOOST_BRANCH=develop && [ "$TRAVIS_BRANCH" == "master" ] && BOOST_BRANCH=master || true
+  - cd ..
+  - git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
+  - cd boost-root
+  - git submodule update --init tools/boostdep
+  - cp -r $TRAVIS_BUILD_DIR/* libs/regex
+  - python tools/boostdep/depinst/depinst.py -I example -g "--jobs 3" regex
+  - ./bootstrap.sh
+  - ./b2 headers
+
+script:
+  - |-
+    echo "using $TOOLSET : : $COMPILER ;" > ~/user-config.jam
+  - IFS=','
+  - for CXXLOCAL in $CXXSTD; do  (cd libs/config/test && ../../../b2 config_info_travis_install toolset=$TOOLSET cxxstd=$CXXLOCAL $CXXSTD_DIALECT && echo With Standard Version $CXXLOCAL && ./config_info_travis && rm ./config_info_travis)  done
+  - unset IFS
+  - ./b2 -j3 libs/regex/test toolset=$TOOLSET cxxstd=$CXXSTD $CXXSTD_DIALECT
+
+notifications:
+  email:
+    on_success: always

CMakeLists.txt

@@ -1,69 +1,103 @@
-# Copyright 2018 Mike Dev
-# Copyright 2019 Peter Dimov
+# Copyright 2018-2019 Mike Dev
 # Distributed under the Boost Software License, Version 1.0.
-# See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
+# See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
+#
+# NOTE: CMake support for Boost.Regex is currently experimental at best
+#       and the interface is likely to change in the future
 
-# We support CMake 3.5, but prefer 3.16 policies and behavior
-cmake_minimum_required(VERSION 3.5...3.16)
 
-project(boost_regex VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
+##### How-To:
+#
+# If you have a cmake project that wants to use and compile
+# boost_regex, as part of a single build system run, do the following:
+# 1) clone the boost project and all its sub-projects:
+#
+#   git clone --branch develop --depth 1 --recursive --shallow-submodules https://github.com/boostorg/boost.git boost-root
+#
+# 2) add to your cmake script:
+#
+#   add_subdirectory( <path-to-boost-root> [<build-dir-for-boost-libs>])
+#   target_link_libraries( <my-exec> PUBLIC Boost::regex)
+#
+# 3) run your cmake build as usual
+#
+# ## Explanation:
+#
+# Currently this file does not work standalone. It is expected to be
+# invoked from a parent script via add_subdirectory. That parent script
+# is responsible for providing targets for direct and indirect dependencies,
+# such as Boost::assert,  Boost::concept_check, e.g. by also adding those
+# libraries via add_submodule (order doesn't matter).
+# The parent script can be your own cmake script, but it is easier to just
+# use add the CMakeLists in the root of the boost super project, which
+# will in turn add all boost libraries usable with the add_subdirectory
+# Workflow.
+#
+# Note: You don't need to actually clone all boost libraries. E.g. look
+# into the travis ci file to see on which libraries boost_regex actually
+# depends or use boostdep https://github.com/boostorg/boostdep
 
-add_library(boost_regex INTERFACE)
-add_library(Boost::regex ALIAS boost_regex)
 
-target_include_directories(boost_regex INTERFACE include)
+##### Current Limitations:
+#
+# - Doesn't compile or run tests
+#
 
-option(BOOST_REGEX_STANDALONE "Boost.Regex: Enable Standalone Mode (i.e. no Boost dependencies)")
+cmake_minimum_required( VERSION 3.5...3.16 )
+project( boost_regex VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX )
 
-if(NOT BOOST_REGEX_STANDALONE)
+option( BOOST_REGEX_INCLUDE_EXAMPLES "Also build (some) boost regex examples" OFF )
+option( BOOST_REGEX_USE_ICU "Enable ICU support in boost regex" OFF )
 
-   target_link_libraries(boost_regex
-     INTERFACE
-       Boost::config
-       Boost::throw_exception
-       Boost::predef
-       Boost::assert
-   )
+file( GLOB BOOST_REGEX_SRC ./src/*.cpp )
 
-else()
+add_library( boost_regex ${BOOST_REGEX_SRC} )
+add_library( Boost::regex ALIAS boost_regex )
 
-   target_compile_definitions(boost_regex
-     INTERFACE BOOST_REGEX_STANDALONE
-   )
+target_include_directories( boost_regex PUBLIC include )
 
+target_compile_definitions( boost_regex
+    PUBLIC
+        # No need for autolink
+        BOOST_REGEX_NO_LIB
+        $<$<STREQUAL:$<TARGET_PROPERTY:boost_regex,TYPE>,SHARED_LIBRARY>:BOOST_REGEX_DYN_LINK=1>
+        $<$<STREQUAL:$<TARGET_PROPERTY:boost_regex,TYPE>,STATIC_LIBRARY>:BOOST_REGEX_STATIC_LINK=1>
+)
+
+# Specify dependencies (including header-only libraries)
+target_link_libraries( boost_regex
+    PUBLIC
+        Boost::assert
+        Boost::concept_check
+        Boost::config
+        Boost::container_hash
+        Boost::core
+        Boost::integer
+        Boost::iterator
+        Boost::mpl
+        Boost::predef
+        Boost::smart_ptr
+        Boost::static_assert
+        Boost::throw_exception
+        Boost::type_traits
+)
+
+if( BOOST_REGEX_USE_ICU )
+    # ICU Targets could be provided by parent project,
+    # if not, look for them ourselves
+    if( NOT TARGET ICU::dt )
+        # components need to be listed explicitly
+        find_package( ICU COMPONENTS dt in uc REQUIRED )
+    endif()
+
+    target_link_libraries( boost_regex
+        PRIVATE
+            ICU::dt ICU::in ICU::uc
+    )
+    target_compile_definitions( boost_regex PRIVATE BOOST_HAS_ICU=1 )
 endif()
 
-find_package(ICU COMPONENTS data i18n uc QUIET)
-#option(BOOST_REGEX_ENABLE_ICU "Boost.Regex: enable ICU support" ${ICU_FOUND})
-
-if(ICU_FOUND)
-
-   add_library(boost_regex_icu INTERFACE)
-   add_library(Boost::regex_icu ALIAS boost_regex_icu)
-
-   target_include_directories(boost_regex_icu INTERFACE include)
-
-   if(NOT BOOST_REGEX_STANDALONE)
-
-      target_link_libraries(boost_regex_icu
-        INTERFACE
-          Boost::config
-          Boost::throw_exception
-          Boost::predef
-          Boost::assert
-      )
-
-   else()
-
-      target_compile_definitions(boost_regex_icu
-        INTERFACE BOOST_REGEX_STANDALONE
-      )
-
-   endif()
-
-   find_package(ICU COMPONENTS data i18n uc REQUIRED)
-
-   target_link_libraries(boost_regex_icu INTERFACE ICU::data ICU::i18n ICU::uc)
-
+if( BOOST_REGEX_INCLUDE_EXAMPLES )
+    add_subdirectory( example/snippets )
 endif()
 

README.md

@@ -6,17 +6,6 @@ and offers some advantages to, the standard version.
 
 The full documentation is available on [boost.org](http://www.boost.org/doc/libs/release/libs/regex/index.html).
 
-## Standalone Mode ##
-
- This library may now be used in "standalone" mode without the rest of the Boost C++ libraries, in order to do this you must either:
-
-* Have a C++17 compiler that supports __has_include, in this case if <boost/config.hpp> is not present then the library will automoatically enter standalone mode. Or:
-* Define BOOST_REGEX_STANDALONE when building.
-
-The main difference between the 2 modes, is that when Boost.Config is present the library will automatically configure itself around various compiler defects. In particular in order to use the library with exception support turned off, you will either need a copy of Boost.Config in your include path, or else manually define BOOST_NO_EXCEPTIONS when building.
-
-In any event, to obtain a standalone version of this library, simply download a .zip of the "master" branch of this repository.
-
 ## Support, bugs and feature requests ##
 
 Bugs and feature requests can be reported through the [Gitub issue tracker](https://github.com/boostorg/regex/issues)

appveyor.yml

@@ -0,0 +1,111 @@
+# Copyright 2016 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
+
+version: 1.0.{build}-{branch}
+
+shallow_clone: true
+
+branches:
+  only:
+    - master
+    - develop
+
+platform:
+  - x64
+
+environment:
+  matrix:
+    - ARGS: --toolset=msvc-9.0  address-model=32
+    - ARGS: --toolset=msvc-10.0 address-model=32
+    - ARGS: --toolset=msvc-11.0 address-model=32
+    - ARGS: --toolset=msvc-12.0 address-model=32
+    - ARGS: --toolset=msvc-14.0 address-model=32
+    - ARGS: --toolset=msvc-12.0 address-model=64
+    - ARGS: --toolset=msvc-14.0 address-model=64
+    - ARGS: --toolset=msvc-14.0 address-model=64 cxxstd=latest
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      ARGS: --toolset=msvc-14.1 address-model=64
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      ARGS: --toolset=msvc-14.1 address-model=32
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      ARGS: --toolset=msvc-14.1 address-model=64 cxxstd=17
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      ARGS: --toolset=msvc-14.1 address-model=64 cxxstd=latest cxxflags=-permissive-
+    - ARGS: --toolset=gcc address-model=64
+      PATH: C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin;%PATH%
+    - ARGS: --toolset=gcc address-model=64 cxxflags=-std=gnu++1z
+      PATH: C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin;%PATH%
+    - ARGS: --toolset=gcc address-model=32
+      PATH: C:\mingw-w64\i686-5.3.0-posix-dwarf-rt_v4-rev0\mingw32\bin;%PATH%
+    - ARGS: --toolset=gcc address-model=32 linkflags=-Wl,-allow-multiple-definition
+      PATH: C:\MinGW\bin;%PATH%
+    - ARGS: --toolset=gcc address-model=32 define=_POSIX_C_SOURCE=200112L threadapi=pthread link=static
+      PATH: C:\cygwin\bin;%PATH%
+    - ARGS: --toolset=gcc address-model=64 define=_POSIX_C_SOURCE=200112L define=__USE_ISOC99 threadapi=pthread link=static
+      PATH: C:\cygwin64\bin;%PATH%
+
+install:
+  - cd ..
+  - git clone -b %APPVEYOR_REPO_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
+  - cd boost-root
+  - git submodule update --init tools/build
+  - git submodule update --init tools/boost_install
+  - git submodule update --init libs/headers
+  - git submodule update --init libs/config
+  - git submodule update --init libs/core
+  - git submodule update --init libs/container_hash
+  - git submodule update --init libs/detail
+  - git submodule update --init libs/smart_ptr
+  - git submodule update --init libs/predef
+  - git submodule update --init libs/assert
+  - git submodule update --init libs/throw_exception
+  - git submodule update --init libs/mpl
+  - git submodule update --init libs/type_traits
+  - git submodule update --init libs/static_assert
+  - git submodule update --init libs/integer
+  - git submodule update --init libs/preprocessor
+  - git submodule update --init libs/functional
+  - git submodule update --init libs/program_options
+  - git submodule update --init libs/chrono
+  - git submodule update --init libs/system
+  - git submodule update --init libs/thread
+  - git submodule update --init libs/winapi
+  - git submodule update --init libs/move
+  - git submodule update --init libs/date_time
+  - git submodule update --init libs/ratio
+  - git submodule update --init libs/iterator
+  - git submodule update --init libs/range
+  - git submodule update --init libs/any
+  - git submodule update --init libs/concept_check
+  - git submodule update --init libs/array
+  - git submodule update --init libs/timer
+  - git submodule update --init libs/bind
+  - git submodule update --init libs/utility
+  - git submodule update --init libs/io
+  - git submodule update --init libs/intrusive
+  - git submodule update --init libs/container
+  - git submodule update --init libs/tuple
+  - git submodule update --init libs/exception
+  - git submodule update --init libs/function
+  - git submodule update --init libs/type_index
+  - git submodule update --init libs/lexical_cast
+  - git submodule update --init libs/numeric
+  - git submodule update --init libs/math
+  - git submodule update --init libs/tokenizer
+  - git submodule update --init libs/optional
+  - git submodule update --init libs/atomic
+  - git submodule update --init libs/rational
+  - git submodule update --init libs/algorithm
+  - xcopy /s /e /q %APPVEYOR_BUILD_FOLDER% libs\regex
+  - bootstrap
+  - b2 headers
+
+build: off
+
+test_script:
+  - cd libs\config\test
+  - ..\..\..\b2 config_info_travis_install %ARGS%
+  - config_info_travis
+  - cd ..\..\regex\test
+  - ..\..\..\b2 -j3 %ARGS% define=CI_SUPPRESS_KNOWN_ISSUES

build/Jamfile.v2

@@ -57,7 +57,7 @@ if ! $(disable-icu)
 
    if $(ICU_ICUUC_NAME)
    {
-      lib icuuc : : <name>$(ICU_ICUUC_NAME) <conditional>@path_options ;
+      lib icuuc : : <name>$(ICU_ICUUC_NAME) ;
    }
    else
    {
@@ -71,7 +71,7 @@ if ! $(disable-icu)
    }
    if $(ICU_ICUDT_NAME)
    {
-      lib icudt : : <name>$(ICU_ICUDT_NAME) <conditional>@path_options ;
+      lib icudt : : <name>$(ICU_ICUDT_NAME) ;
    }
    else
    {
@@ -85,7 +85,7 @@ if ! $(disable-icu)
    }
    if $(ICU_ICUIN_NAME)
    {
-      lib icuin : : <name>$(ICU_ICUIN_NAME) <conditional>@path_options ;
+      lib icuin : : <name>$(ICU_ICUIN_NAME) ;
    }
    else
    {
@@ -110,50 +110,36 @@ if ! $(disable-icu)
       <runtime-link>static:<library>icuuc
       <runtime-link>static:<library>icudt
       <runtime-link>static:<library>icuin
-      <target-os>windows,<toolset>clang:<linkflags>"advapi32.lib"
       <define>BOOST_HAS_ICU=1 
       <runtime-link>static:<define>U_STATIC_IMPLEMENTATION=1
       ;
 
-   if [ modules.peek : ICU_DATA_DIR ]
-   {
-       rule data-dir-options ( properties * )
-       {
-          local result ;
-          local data_dir = [ modules.peek : ICU_DATA_DIR ] ;
-          if <toolset>emscripten in $(properties)
-          {
-             result = <define>ICU_DATA_DIR=\\\"/$(data_dir:BS)\\\"
-                      "<linkflags>--embed-file $(data_dir)@/$(data_dir:BS)"
-                      ;
-          }
-          else
-          {
-             result = <define>ICU_DATA_DIR=\\\"$(data_dir)\\\" ;
-          }
-          return $(result) ;
-       }
-
-       ICU_OPTS += <conditional>@data-dir-options ;
-   }
-
 }
 
 exe has_icu : has_icu_test.cpp : $(ICU_OPTS) ;
 explicit has_icu ;
 
-obj is_legacy_03 : is_legacy_03.cpp ;
-explicit is_legacy_03 ;
-
 alias icu_options : : : : [ check-target-builds has_icu : $(ICU_OPTS) : ] ;
 
 SOURCES = 
+   c_regex_traits.cpp
+   cpp_regex_traits.cpp
+   cregex.cpp
+   fileiter.cpp
+   icu.cpp
+   instances.cpp
    posix_api.cpp
    regex.cpp
    regex_debug.cpp
+   regex_raw_buffer.cpp
+   regex_traits_defaults.cpp
    static_mutex.cpp
+   w32_regex_traits.cpp
+   wc_regex_traits.cpp
    wide_posix_api.cpp
-;
+   winstances.cpp 
+   usinstances.cpp ;
+
 
 lib boost_regex : ../src/$(SOURCES) icu_options
     :         
@@ -163,3 +149,10 @@ lib boost_regex : ../src/$(SOURCES) icu_options
 
 boost-install boost_regex ;
 
+
+
+
+
+
+
+

build/has_icu_test.cpp

@@ -28,10 +28,6 @@ void print_error(UErrorCode err, const char* func)
 
 int main()
 {
-#ifdef ICU_DATA_DIR
-   ::u_setDataDirectory(ICU_DATA_DIR);
-#endif
-
    // To detect possible binary mismatches between the installed ICU build, and whatever
    // C++ std lib's we're using, we need to:
    // * Make sure we call ICU C++ API's

build/is_legacy_03.cpp

@@ -1,16 +0,0 @@
-/*
- *
- * Copyright (c) 2020
- * John Maddock
- *
- * Use, modification and distribution are subject to the 
- * Boost Software License, Version 1.0. (See accompanying file 
- * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- *
- */
-
-#include <boost/regex/config.hpp>
-
-#ifdef BOOST_REGEX_CXX03
-#error "Legacy mode"
-#endif

doc/configuration.qbk

@@ -17,22 +17,6 @@ or platform) then [@../../../config/index.html Boost.Config] has a configure scr
 
 [endsect]
 
-[section:standalone Use in Standalone Mode (without the rest of Boost)]
-
-This library may now be used in "standalone" mode without the rest of the Boost C++ libraries,
-in order to do this you must either:
-
-* Have a C++17 compiler that supports `__has_include`, in this case if `<boost/config.hpp>` is *not* present
-then the library will automoatically enter standalone mode.  Or:
-* Define BOOST_REGEX_STANDALONE when building.
-
-The main difference between the 2 modes, is that when Boost.Config is present the library will automatically
-configure itself around various compiler defects.  In particular in order to use the library with exception support
-turned off, you will either need a copy of Boost.Config in your include path, or else manually define BOOST_NO_EXCEPTIONS
-when building.
-
-[endsect]
-
 [section:locale Locale and traits class selection]
 
 The following macros (see [@../../../../boost/regex/user.hpp user.hpp]) control how Boost.Regex interacts with 
@@ -47,11 +31,43 @@ the user's locale:
 
 [endsect]
 
-[section:tuning Algorithm Tuning]
+
+[section:linkage Linkage Options]
 
 [table
 [[macro][description]]
-[[BOOST_REGEX_BLOCKSIZE][Boost.Regex uses largish blocks of memory to act as a stack for the state machine, the larger the block size then the fewer allocations that will take place.  This defaults to 4096 bytes, which is large enough to match the vast majority of regular expressions without further allocations, however, you can choose smaller or larger values depending upon your platforms characteristics.]]
+[[BOOST_REGEX_DYN_LINK][For Microsoft and Borland C++ builds, this tells Boost.Regex that it should link to the dll build of the Boost.Regex.  By default boost.regex will link to its static library build, even if the dynamic C runtime library is in use.]]
+[[BOOST_REGEX_NO_LIB][For Microsoft and Borland C++ builds, this tells Boost.Regex that it should not automatically select the library to link to.]]
+[[BOOST_REGEX_NO_FASTCALL][For Microsoft builds, this tells Boost.Regex to use the `__cdecl` calling convention rather than `__fastcall`.  Useful if you want to use the same library from both managed and unmanaged code.]]
+]
+
+[endsect]
+
+[section:algorithm Algorithm Selection]
+
+[table
+[[macro][description]]
+[[BOOST_REGEX_RECURSIVE][Tells Boost.Regex to use a stack-recursive matching algorithm.  This is generally the fastest option (although there is very little in it), but can cause stack overflow in extreme cases, on Win32 this can be handled safely, but this is not the case on other platforms.]]
+[[BOOST_REGEX_NON_RECURSIVE][Tells Boost.Regex to use a non-stack recursive matching algorithm, this can be slightly slower than the alternative, but is always safe no matter how pathological the regular expression.  This is the default on non-Win32 platforms.]]
+]
+
+[endsect]
+
+[section:tuning Algorithm Tuning]
+
+The following option applies only if BOOST_REGEX_RECURSIVE is set.
+
+[table
+[[macro][description]]
+[[BOOST_REGEX_HAS_MS_STACK_GUARD][Tells Boost.Regex that Microsoft style __try - __except blocks are supported, and can be used to safely trap stack overflow.]]
+]
+
+
+The following options apply only if BOOST_REGEX_NON_RECURSIVE is set.
+
+[table
+[[macro][description]]
+[[BOOST_REGEX_BLOCKSIZE][In non-recursive mode, Boost.Regex uses largish blocks of memory to act as a stack for the state machine, the larger the block size then the fewer allocations that will take place.  This defaults to 4096 bytes, which is large enough to match the vast majority of regular expressions without further allocations, however, you can choose smaller or larger values depending upon your platforms characteristics.]]
 [[BOOST_REGEX_MAX_BLOCKS][Tells Boost.Regex how many blocks of size BOOST_REGEX_BLOCKSIZE it is permitted to use.  If this value is exceeded then Boost.Regex will stop trying to find a match and throw a std::runtime_error.  Defaults to 1024, don't forget to tweak this value if you alter BOOST_REGEX_BLOCKSIZE by much.]]
 [[BOOST_REGEX_MAX_CACHE_BLOCKS][Tells Boost.Regex how many memory blocks to store in 
          it's internal cache - memory blocks are taken from this cache rather than by calling 

doc/history.qbk

@@ -14,21 +14,6 @@ Currently open issues can be viewed [@https://github.com/boostorg/regex/issues?q
 
 All issues including closed ones can be viewed [@https://github.com/boostorg/regex/issues?q=is%3Aissue+is%3Aclosed here].
 
-[h4 Boost.Regex-7.0.1 (boost-1.79.0)]
-
-* Minor fix for setting building with -DBOOST_REGEX_MAX_CACHE_BLOCKS=0 and `<atomic>` present.
-
-[h4 Boost.Regex-7.0.0 (Boost-1.78.0)]
-
-* [*Breaking Change:] Change \B to be the opposite of \b as per Perl behaviour.
-* Change w32_regex_traits.hpp so that windows.h is no longer included. 
-* Fxed fuzzing related issues [@https://github.com/boostorg/regex/issues/156 #151], [@https://github.com/boostorg/regex/issues/156 #152], [@https://github.com/boostorg/regex/issues/156 #153], [@https://github.com/boostorg/regex/issues/156 #156].
-
-[h4 Boost.Regex-6.0.0 (Boost-1.77.0)]
-
-* Big change to header only library.
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doc/html/boost_regex/background/standards.html

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doc/html/boost_regex/background/thread_safety.html

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doc/html/boost_regex/captures.html

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+<link rel="home" href="../index.html" title="Boost.Regex 5.1.4">
+<link rel="up" href="../index.html" title="Boost.Regex 5.1.4">
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+<link rel="home" href="../index.html" title="Boost.Regex 5.1.4">
+<link rel="up" href="../index.html" title="Boost.Regex 5.1.4">
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-      Mode (without the rest of Boost)</a></span></dt>
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+<dt><span class="section"><a href="configuration/linkage.html">Linkage Options</a></span></dt>
+<dt><span class="section"><a href="configuration/algorithm.html">Algorithm Selection</a></span></dt>
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-<link rel="next" href="standalone.html" title="Use in Standalone Mode (without the rest of Boost)">
+<link rel="next" href="locale.html" title="Locale and traits class selection">
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+<a accesskey="p" href="../configuration.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../configuration.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="locale.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
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+<a accesskey="p" href="../configuration.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../configuration.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="locale.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
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doc/html/boost_regex/configuration/locale.html

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-<link rel="prev" href="standalone.html" title="Use in Standalone Mode (without the rest of Boost)">
-<link rel="next" href="tuning.html" title="Algorithm Tuning">
+<link rel="prev" href="compiler.html" title="Compiler Setup">
+<link rel="next" href="linkage.html" title="Linkage Options">
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+<a accesskey="p" href="compiler.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../configuration.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="linkage.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
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+<a accesskey="p" href="compiler.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../configuration.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="linkage.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
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doc/html/boost_regex/configuration/tuning.html

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-<link rel="home" href="../../index.html" title="Boost.Regex 7.0.1">
+<link rel="home" href="../../index.html" title="Boost.Regex 5.1.4">
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-<link rel="prev" href="locale.html" title="Locale and traits class selection">
+<link rel="prev" href="algorithm.html" title="Algorithm Selection">
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 </tr></table>
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-<a accesskey="p" href="locale.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../configuration.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../install.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
+<a accesskey="p" href="algorithm.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../configuration.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../install.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
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 <a name="boost_regex.configuration.tuning"></a><a class="link" href="tuning.html" title="Algorithm Tuning">Algorithm Tuning</a>
 </h3></div></div></div>
+<p>
+        The following option applies only if BOOST_REGEX_RECURSIVE is set.
+      </p>
+<div class="informaltable"><table class="table">
+<colgroup>
+<col>
+<col>
+</colgroup>
+<thead><tr>
+<th>
+                <p>
+                  macro
+                </p>
+              </th>
+<th>
+                <p>
+                  description
+                </p>
+              </th>
+</tr></thead>
+<tbody><tr>
+<td>
+                <p>
+                  BOOST_REGEX_HAS_MS_STACK_GUARD
+                </p>
+              </td>
+<td>
+                <p>
+                  Tells Boost.Regex that Microsoft style __try - __except blocks
+                  are supported, and can be used to safely trap stack overflow.
+                </p>
+              </td>
+</tr></tbody>
+</table></div>
+<p>
+        The following options apply only if BOOST_REGEX_NON_RECURSIVE is set.
+      </p>
 <div class="informaltable"><table class="table">
 <colgroup>
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@@ -52,12 +89,13 @@
               </td>
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                 <p>
-                  Boost.Regex uses largish blocks of memory to act as a stack for
-                  the state machine, the larger the block size then the fewer allocations
-                  that will take place. This defaults to 4096 bytes, which is large
-                  enough to match the vast majority of regular expressions without
-                  further allocations, however, you can choose smaller or larger
-                  values depending upon your platforms characteristics.
+                  In non-recursive mode, Boost.Regex uses largish blocks of memory
+                  to act as a stack for the state machine, the larger the block size
+                  then the fewer allocations that will take place. This defaults
+                  to 4096 bytes, which is large enough to match the vast majority
+                  of regular expressions without further allocations, however, you
+                  can choose smaller or larger values depending upon your platforms
+                  characteristics.
                 </p>
               </td>
 </tr>
@@ -112,7 +150,7 @@
 </tr></table>
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-<a accesskey="p" href="locale.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../configuration.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../install.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
+<a accesskey="p" href="algorithm.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../configuration.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../install.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
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 </body>
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doc/html/boost_regex/format.html

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-<link rel="home" href="../index.html" title="Boost.Regex 7.0.1">
-<link rel="up" href="../index.html" title="Boost.Regex 7.0.1">
+<link rel="home" href="../index.html" title="Boost.Regex 5.1.4">
+<link rel="up" href="../index.html" title="Boost.Regex 5.1.4">
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doc/html/boost_regex/format/boost_format_syntax.html

@@ -4,7 +4,7 @@
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-<link rel="home" href="../../index.html" title="Boost.Regex 7.0.1">
+<link rel="home" href="../../index.html" title="Boost.Regex 5.1.4">
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doc/html/boost_regex/format/perl_format.html

@@ -4,7 +4,7 @@
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-<link rel="home" href="../../index.html" title="Boost.Regex 7.0.1">
+<link rel="home" href="../../index.html" title="Boost.Regex 5.1.4">
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doc/html/boost_regex/format/sed_format.html

@@ -4,7 +4,7 @@
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-<link rel="home" href="../../index.html" title="Boost.Regex 7.0.1">
+<link rel="home" href="../../index.html" title="Boost.Regex 5.1.4">
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doc/html/boost_regex/install.html

@@ -4,8 +4,8 @@
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-<link rel="home" href="../index.html" title="Boost.Regex 7.0.1">
-<link rel="up" href="../index.html" title="Boost.Regex 7.0.1">
+<link rel="home" href="../index.html" title="Boost.Regex 5.1.4">
+<link rel="up" href="../index.html" title="Boost.Regex 5.1.4">
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@@ -43,83 +43,23 @@
       The library will encase all code inside namespace boost.
     </p>
 <p>
-      This is a header only library provided your compiler supports C++11 or later.
-      Support for C++03 compilers is still present, but is now deprecated and may
-      be removed without further notice!
-    </p>
-<p>
-      The only people that still need to build the external libboost_regex library
-      are those that are either:
-    </p>
-<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
-<li class="listitem">
-          Using the library in C++03 mode, or,
-        </li>
-<li class="listitem">
-          Using the deprecated POSIX C API's
-        </li>
-</ul></div>
-<p>
-      Further, this library may now be used in "standalone" mode without
-      the rest of the Boost C++ libraries, in order to do this you must either:
-    </p>
-<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
-<li class="listitem">
-          Have a C++17 compiler that supports <code class="computeroutput"><span class="identifier">__has_include</span></code>,
-          in this case if <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">config</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code> is not present then the library will
-          automoatically enter standalone mode. Or:
-        </li>
-<li class="listitem">
-          Define BOOST_REGEX_STANDALONE when building.
-        </li>
-</ul></div>
-<p>
-      If you are using this library with ICU, note that since it is now header only,
-      it will be up to you to link to the ICU libraries if you use <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">regex</span><span class="special">/</span><span class="identifier">icu</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code> unless you are using the supplied CMake
-      script.
+      Unlike some other template libraries, this library consists of a mixture of
+      template code (in the headers) and static code and data (in cpp files). Consequently
+      it is necessary to build the library's support code into a library or archive
+      file before you can use it, instructions for specific platforms are as follows:
     </p>
 <h5>
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-      <span class="phrase"><a name="boost_regex.install.usage_with_cmake"></a></span><a class="link" href="install.html#boost_regex.install.usage_with_cmake">Usage
-      with CMake</a>
+      <span class="phrase"><a name="boost_regex.install.building_with_bjam"></a></span><a class="link" href="install.html#boost_regex.install.building_with_bjam">Building
+      with bjam</a>
     </h5>
 <p>
-      The library comes with a very basic CMakeLists.txt that allows this library
-      to be used from other CMake scripts.
-    </p>
-<p>
-      CMakeLists.txt defines two targets:
-    </p>
-<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
-<li class="listitem">
-          <code class="computeroutput"><span class="identifier">Boost</span><span class="special">::</span><span class="identifier">regex</span></code> This is the target to use for normal
-          header only builds.
-        </li>
-<li class="listitem">
-          <code class="computeroutput"><span class="identifier">Boost</span><span class="special">::</span><span class="identifier">regex_icu</span></code> This is the target to use if
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-          ICU dependencies taken care of for you.
-        </li>
-</ul></div>
-<p>
-      There is also one configuration option:
-    </p>
-<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
-          BOOST_REGEX_STANDALONE when set then no other Boost libraries are targeted
-          as dependencies, and Boost.Regex is placed in standalone mode. Invoke CMake
-          with -DBOOST_REGEX_STANDALONE=on to enable standalone mode.
-        </li></ul></div>
-<h5>
-<a name="boost_regex.install.h1"></a>
-      <span class="phrase"><a name="boost_regex.install.c_03_users_only_deprecated_build"></a></span><a class="link" href="install.html#boost_regex.install.c_03_users_only_deprecated_build"><span class="bold"><strong>C++03 users only (DEPRECATED)</strong></span> Building with bjam</a>
-    </h5>
-<p>
-      This is now the preferred method for building and installing legacy versions
-      this library, please refer to the <a href="../../../../../more/getting_started.html" target="_top">getting
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+      please refer to the <a href="../../../../../more/getting_started.html" target="_top">getting
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doc/html/boost_regex/ref/syntax_option_type.html

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         sets:</a>
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-        A character set is a bracket-expression starting with <code class="literal">[</code>
-        and ending with <code class="literal">]</code>, it defines a set of characters, and
-        matches any single character that is a member of that set.
+        A character set is a bracket-expression starting with [ and ending with ],
+        it defines a set of characters, and matches any single character that is
+        a member of that set.
       </p>
 <p>
         A bracket expression may contain any combination of the following:

doc/html/boost_regex/syntax/basic_syntax.html

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-        and ending with <code class="literal">]</code>, it defines a set of characters, and
-        matches any single character that is a member of that set.
+        A character set is a bracket-expression starting with [ and ending with ],
+        it defines a set of characters, and matches any single character that is
+        a member of that set.
       </p>
 <p>
         A bracket expression may contain any combination of the following:

doc/html/boost_regex/syntax/character_classes.html

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doc/html/boost_regex/syntax/character_classes/optional_char_class_names.html

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doc/html/boost_regex/syntax/collating_names/posix_symbolic_names.html

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doc/html/boost_regex/syntax/leftmost_longest_rule.html

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doc/html/boost_regex/syntax/perl_syntax.html

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@@ -364,14 +364,9 @@
 </tr>
 </tbody>
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-<p>
-        Note that a back reference can also be a forward-reference to a sub-expression
-        that has not yet been seen - this only really makes sense within a repeat,
-        so for example <code class="computeroutput"><span class="special">(\</span><span class="number">2</span><span class="identifier">two</span><span class="special">|(</span><span class="identifier">one</span><span class="special">))+</span></code> will match "oneonetwo".
-      </p>
 <p>
         Finally the \k escape can be used to refer to named subexpressions, for example
-        <code class="literal">\k&lt;two&gt;</code> will whatever matched the subexpression
+        <code class="literal">\k&lt;two&gt;</code> will match whatever matched the subexpression
         named "two".
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@@ -407,9 +402,9 @@
         sets</a>
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-        A character set is a bracket-expression starting with <code class="literal">[</code>
-        and ending with <code class="literal">]</code>, it defines a set of characters, and
-        matches any single character that is a member of that set.
+        A character set is a bracket-expression starting with <code class="literal">[] and ending
+        with <code class="literal"></code></code>, it defines a set of characters, and matches
+        any single character that is a member of that set.
       </p>
 <p>
         A bracket expression may contain any combination of the following:

doc/html/boost_regex/unicode.html

@@ -4,8 +4,8 @@
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+<link rel="up" href="../index.html" title="Boost.Regex 5.1.4">
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@@ -63,10 +63,11 @@
     </h5>
 <p>
       If you have the <a href="http://www.ibm.com/software/globalization/icu/" target="_top">ICU
-      library</a>, then Boost.Regex provides a distinct regular expression type
-      (boost::u32regex), that supports both Unicode specific character properties,
-      and the searching of text that is encoded in either UTF-8, UTF-16, or UTF-32.
-      See: <a class="link" href="ref/non_std_strings/icu.html" title="Working With Unicode and ICU String Types">ICU string class support</a>.
+      library</a>, then Boost.Regex can be <a class="link" href="install.html#boost_regex.install.building_with_unicode_and_icu_su">configured
+      to make use of it</a>, and provide a distinct regular expression type (boost::u32regex),
+      that supports both Unicode specific character properties, and the searching
+      of text that is encoded in either UTF-8, UTF-16, or UTF-32. See: <a class="link" href="ref/non_std_strings/icu.html" title="Working With Unicode and ICU String Types">ICU
+      string class support</a>.
     </p>
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>

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@@ -22,7 +22,7 @@
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 <div>
 <div><h2 class="title">
-<a name="boost_regex"></a>Boost.Regex 7.0.1</h2></div>
+<a name="boost_regex"></a>Boost.Regex 5.1.4</h2></div>
 <div><div class="authorgroup"><div class="author"><h3 class="author">
 <span class="firstname">John</span> <span class="surname">Maddock</span>
 </h3></div></div></div>
@@ -42,10 +42,10 @@
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-<dt><span class="section"><a href="boost_regex/configuration/standalone.html">Use in Standalone
-      Mode (without the rest of Boost)</a></span></dt>
 <dt><span class="section"><a href="boost_regex/configuration/locale.html">Locale and traits class
       selection</a></span></dt>
+<dt><span class="section"><a href="boost_regex/configuration/linkage.html">Linkage Options</a></span></dt>
+<dt><span class="section"><a href="boost_regex/configuration/algorithm.html">Algorithm Selection</a></span></dt>
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@@ -215,7 +215,7 @@
   </p>
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
-<td align="left"><p><small>Last revised: March 08, 2022 at 11:25:00 GMT</small></p></td>
+<td align="left"><p><small>Last revised: November 23, 2020 at 18:11:11 GMT</small></p></td>
 <td align="right"><div class="copyright-footer"></div></td>
 </tr></table>
 <hr>