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Empty expressions, and empty alternatives are now

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allowed when using the Perl regular expression syntax.  This change has
been added for Perl compatibility, when the new [syntax_option_type]
['no_empty_expressions] is set then the old behaviour is preserved and
empty expressions are prohibited.  This is issue
[@https://svn.boost.org/trac/boost/ticket/1081 #1081].

Fixes #1081.

[SVN r50374]
This commit is contained in:
John Maddock
2008-12-23 19:06:04 +00:00
parent b4152cd74d
commit e4b31ea37f
25 changed files with 147 additions and 81 deletions
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6
doc/html/boost_regex/background_information/examples.html
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@ -28,7 +28,7 @@
Example Programs</a>
</h3></div></div></div>
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<a class="link" href="examples.html#boost_regex.background_information.examples.test_programs">Test
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Files: <a href="../../../../test/captures/captures_test.cpp" target="_top">captures_test.cpp</a>.
</p>
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<a class="link" href="examples.html#boost_regex.background_information.examples.example_programs">Example
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Files: <a href="../../../../example/timer/regex_timer.cpp" target="_top">regex_timer.cpp</a>.
</p>
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