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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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8
doc/html/boost_regex/ref/posix.html
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@ -165,7 +165,7 @@
<a name="regcomp"></a><p>
</p>
<a name="boost_regex.ref.posix.regcomp"></a><h5>
<a name="id659594"></a>
<a name="id659651"></a>
<a class="link" href="posix.html#boost_regex.ref.posix.regcomp">regcomp</a>
</h5>
<p>
@ -379,7 +379,7 @@
<a name="regerror"></a><p>
</p>
<a name="boost_regex.ref.posix.regerror"></a><h5>
<a name="id660238"></a>
<a name="id660295"></a>
<a class="link" href="posix.html#boost_regex.ref.posix.regerror">regerror</a>
</h5>
<p>
@ -467,7 +467,7 @@
<a name="regexec"></a><p>
</p>
<a name="boost_regex.ref.posix.regexec"></a><h5>
<a name="id660421"></a>
<a name="id660478"></a>
<a class="link" href="posix.html#boost_regex.ref.posix.regexec">regexec</a>
</h5>
<p>
@ -537,7 +537,7 @@
<a name="regfree"></a><p>
</p>
<a name="boost_regex.ref.posix.regfree"></a><h5>
<a name="id660563"></a>
<a name="id660619"></a>
<a class="link" href="posix.html#boost_regex.ref.posix.regfree">regfree</a>
</h5>
<p>