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Add checked constructors to the Unicode iterators that need them.

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Update icu support code to use the new checking-constructors.
Update tests to check the full Unicode character range (as of Unicode V6).
Add minimal docs describing the iterators.

[SVN r73271]
This commit is contained in:
John Maddock
2011-07-21 10:01:09 +00:00
parent 03ef9626ba
commit d08bfeff25
89 changed files with 1426 additions and 1088 deletions
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112
doc/html/boost_regex/syntax/basic_extended.html
View File

@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>POSIX Extended Regular Expression Syntax</title>
<link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../../index.html" title="Boost.Regex">
<link rel="up" href="../syntax.html" title="Regular Expression Syntax">
<link rel="prev" href="perl_syntax.html" title="Perl Regular Expression Syntax">
@ -22,13 +22,13 @@
<div class="spirit-nav">
<a accesskey="p" href="perl_syntax.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../syntax.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="basic_syntax.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_regex.syntax.basic_extended"></a><a class="link" href="basic_extended.html" title="POSIX Extended Regular Expression Syntax">POSIX Extended Regular
Expression Syntax</a>
</h3></div></div></div>
<a name="boost_regex.syntax.basic_extended.synopsis"></a><h4>
<a name="id1000989"></a>
<a name="boost_regex.syntax.basic_extended.synopsis-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.synopsis">Synopsis</a>
</h4>
<p>
@ -38,13 +38,13 @@
the flag <code class="computeroutput"><span class="identifier">extended</span></code> to the
regex constructor, for example:
</p>
<pre class="programlisting"><span class="comment">// e1 is a case sensitive POSIX-Extended expression:
</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e1</span><span class="special">(</span><span class="identifier">my_expression</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">extended</span><span class="special">);</span>
<span class="comment">// e2 a case insensitive POSIX-Extended expression:
</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e2</span><span class="special">(</span><span class="identifier">my_expression</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">extended</span><span class="special">|</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">icase</span><span class="special">);</span>
<pre class="programlisting"><span class="comment">// e1 is a case sensitive POSIX-Extended expression:</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e1</span><span class="special">(</span><span class="identifier">my_expression</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">extended</span><span class="special">);</span>
<span class="comment">// e2 a case insensitive POSIX-Extended expression:</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e2</span><span class="special">(</span><span class="identifier">my_expression</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">extended</span><span class="special">|</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">icase</span><span class="special">);</span>
</pre>
<a name="boost_regex.posix_extended_syntax"></a><a name="boost_regex.syntax.basic_extended.posix_extended_syntax"></a><h4>
<a name="id1001164"></a>
<a name="boost_regex.syntax.basic_extended.posix_extended_syntax-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.posix_extended_syntax">POSIX
Extended Syntax</a>
</h4>
@ -54,25 +54,25 @@
</p>
<pre class="programlisting">.[{}()\*+?|^$</pre>
<a name="boost_regex.syntax.basic_extended.wildcard_"></a><h5>
<a name="id1001186"></a>
<a name="boost_regex.syntax.basic_extended.wildcard_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.wildcard_">Wildcard:</a>
</h5>
<p>
The single character '.' when used outside of a character set will match
any single character except:
</p>
<div class="itemizedlist"><ul type="disc">
<li>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
The NULL character when the flag <code class="computeroutput"><span class="identifier">match_no_dot_null</span></code>
is passed to the matching algorithms.
</li>
<li>
<li class="listitem">
The newline character when the flag <code class="computeroutput"><span class="identifier">match_not_dot_newline</span></code>
is passed to the matching algorithms.
</li>
</ul></div>
<a name="boost_regex.syntax.basic_extended.anchors_"></a><h5>
<a name="id1001238"></a>
<a name="boost_regex.syntax.basic_extended.anchors_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.anchors_">Anchors:</a>
</h5>
<p>
@ -84,7 +84,7 @@
of an expression, or the last character of a sub-expression.
</p>
<a name="boost_regex.syntax.basic_extended.marked_sub_expressions_"></a><h5>
<a name="id1001260"></a>
<a name="boost_regex.syntax.basic_extended.marked_sub_expressions_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.marked_sub_expressions_">Marked
sub-expressions:</a>
</h5>
@ -96,7 +96,7 @@
to by a back-reference.
</p>
<a name="boost_regex.syntax.basic_extended.repeats_"></a><h5>
<a name="id1001294"></a>
<a name="boost_regex.syntax.basic_extended.repeats_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.repeats_">Repeats:</a>
</h5>
<p>
@ -182,7 +182,7 @@ cab
operator to be applied to.
</p>
<a name="boost_regex.syntax.basic_extended.back_references_"></a><h5>
<a name="id1001600"></a>
<a name="boost_regex.syntax.basic_extended.back_references_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.back_references_">Back references:</a>
</h5>
<p>
@ -212,7 +212,7 @@ cab
</p></td></tr>
</table></div>
<a name="boost_regex.syntax.basic_extended.alternation"></a><h5>
<a name="id1001664"></a>
<a name="boost_regex.syntax.basic_extended.alternation-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.alternation">Alternation</a>
</h5>
<p>
@ -225,7 +225,7 @@ cab
will match either of "abd" or "abef".
</p>
<a name="boost_regex.syntax.basic_extended.character_sets_"></a><h5>
<a name="id1001731"></a>
<a name="boost_regex.syntax.basic_extended.character_sets_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.character_sets_">Character
sets:</a>
</h5>
@ -238,7 +238,7 @@ cab
A bracket expression may contain any combination of the following:
</p>
<a name="boost_regex.syntax.basic_extended.single_characters_"></a><h6>
<a name="id1001751"></a>
<a name="boost_regex.syntax.basic_extended.single_characters_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.single_characters_">Single
characters:</a>
</h6>
@ -247,7 +247,7 @@ cab
or 'c'.
</p>
<a name="boost_regex.syntax.basic_extended.character_ranges_"></a><h6>
<a name="id1001782"></a>
<a name="boost_regex.syntax.basic_extended.character_ranges_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.character_ranges_">Character
ranges:</a>
</h6>
@ -263,7 +263,7 @@ cab
the code points of the characters only.
</p>
<a name="boost_regex.syntax.basic_extended.negation_"></a><h6>
<a name="id1001844"></a>
<a name="boost_regex.syntax.basic_extended.negation_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.negation_">Negation:</a>
</h6>
<p>
@ -272,7 +272,7 @@ cab
range <code class="computeroutput"><span class="identifier">a</span><span class="special">-</span><span class="identifier">c</span></code>.
</p>
<a name="boost_regex.syntax.basic_extended.character_classes_"></a><h6>
<a name="id1001898"></a>
<a name="boost_regex.syntax.basic_extended.character_classes_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.character_classes_">Character
classes:</a>
</h6>
@ -282,7 +282,7 @@ cab
<a class="link" href="character_classes.html" title="Character Class Names">character class names</a>.
</p>
<a name="boost_regex.syntax.basic_extended.collating_elements_"></a><h6>
<a name="id1001949"></a>
<a name="boost_regex.syntax.basic_extended.collating_elements_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.collating_elements_">Collating
Elements:</a>
</h6>
@ -310,7 +310,7 @@ cab
matches a NUL character.
</p>
<a name="boost_regex.syntax.basic_extended.equivalence_classes_"></a><h6>
<a name="id1002051"></a>
<a name="boost_regex.syntax.basic_extended.equivalence_classes_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.equivalence_classes_">Equivalence
classes:</a>
</h6>
@ -327,7 +327,7 @@ cab
or even all locales on one platform.
</p>
<a name="boost_regex.syntax.basic_extended.combinations_"></a><h6>
<a name="id1002109"></a>
<a name="boost_regex.syntax.basic_extended.combinations_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.combinations_">Combinations:</a>
</h6>
<p>
@ -335,21 +335,21 @@ cab
<code class="computeroutput"><span class="special">[[:</span><span class="identifier">digit</span><span class="special">:]</span><span class="identifier">a</span><span class="special">-</span><span class="identifier">c</span><span class="special">[.</span><span class="identifier">NUL</span><span class="special">.]]</span></code>.
</p>
<a name="boost_regex.syntax.basic_extended.escapes"></a><h5>
<a name="id1002162"></a>
<a name="boost_regex.syntax.basic_extended.escapes-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.escapes">Escapes</a>
</h5>
<p>
The POSIX standard defines no escape sequences for POSIX-Extended regular
expressions, except that:
</p>
<div class="itemizedlist"><ul type="disc">
<li>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
Any special character preceded by an escape shall match itself.
</li>
<li>
<li class="listitem">
The effect of any ordinary character being preceded by an escape is undefined.
</li>
<li>
<li class="listitem">
An escape inside a character class declaration shall match itself: in
other words the escape character is not "special" inside a
character class declaration; so <code class="computeroutput"><span class="special">[\^]</span></code>
@ -361,7 +361,7 @@ cab
extensions are also supported by Boost.Regex:
</p>
<a name="boost_regex.syntax.basic_extended.escapes_matching_a_specific_character"></a><h6>
<a name="id1002214"></a>
<a name="boost_regex.syntax.basic_extended.escapes_matching_a_specific_character-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.escapes_matching_a_specific_character">Escapes
matching a specific character</a>
</h6>
@ -550,7 +550,7 @@ cab
</tbody>
</table></div>
<a name="boost_regex.syntax.basic_extended._quot_single_character_quot__character_classes_"></a><h6>
<a name="id1002522"></a>
<a name="boost_regex.syntax.basic_extended._quot_single_character_quot__character_classes_-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended._quot_single_character_quot__character_classes_">"Single
character" character classes:</a>
</h6>
@ -704,7 +704,7 @@ cab
</tbody>
</table></div>
<a name="boost_regex.syntax.basic_extended.character_properties"></a><h6>
<a name="id1003023"></a>
<a name="boost_regex.syntax.basic_extended.character_properties-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.character_properties">Character
Properties</a>
</h6>
@ -811,7 +811,7 @@ cab
matches any "digit" character, as does <code class="computeroutput"><span class="special">\</span><span class="identifier">p</span><span class="special">{</span><span class="identifier">digit</span><span class="special">}</span></code>.
</p>
<a name="boost_regex.syntax.basic_extended.word_boundaries"></a><h6>
<a name="id1003342"></a>
<a name="boost_regex.syntax.basic_extended.word_boundaries-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.word_boundaries">Word Boundaries</a>
</h6>
<p>
@ -886,7 +886,7 @@ cab
</tbody>
</table></div>
<a name="boost_regex.syntax.basic_extended.buffer_boundaries"></a><h6>
<a name="id1003502"></a>
<a name="boost_regex.syntax.basic_extended.buffer_boundaries-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.buffer_boundaries">Buffer
boundaries</a>
</h6>
@ -977,7 +977,7 @@ cab
</tbody>
</table></div>
<a name="boost_regex.syntax.basic_extended.continuation_escape"></a><h6>
<a name="id1003694"></a>
<a name="boost_regex.syntax.basic_extended.continuation_escape-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.continuation_escape">Continuation
Escape</a>
</h6>
@ -989,7 +989,7 @@ cab
match to start where the last one ended.
</p>
<a name="boost_regex.syntax.basic_extended.quoting_escape"></a><h6>
<a name="id1003722"></a>
<a name="boost_regex.syntax.basic_extended.quoting_escape-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.quoting_escape">Quoting
escape</a>
</h6>
@ -1003,7 +1003,7 @@ cab
<span class="special">\*+</span><span class="identifier">aaa</span>
</pre>
<a name="boost_regex.syntax.basic_extended.unicode_escapes"></a><h6>
<a name="id1003802"></a>
<a name="boost_regex.syntax.basic_extended.unicode_escapes-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.unicode_escapes">Unicode
escapes</a>
</h6>
@ -1054,7 +1054,7 @@ cab
</tbody>
</table></div>
<a name="boost_regex.syntax.basic_extended.any_other_escape"></a><h6>
<a name="id1003908"></a>
<a name="boost_regex.syntax.basic_extended.any_other_escape-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.any_other_escape">Any other
escape</a>
</h6>
@ -1063,44 +1063,44 @@ cab
\@ matches a literal '@'.
</p>
<a name="boost_regex.syntax.basic_extended.operator_precedence"></a><h5>
<a name="id1003925"></a>
<a name="boost_regex.syntax.basic_extended.operator_precedence-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.operator_precedence">Operator
precedence</a>
</h5>
<p>
The order of precedence for of operators is as follows:
</p>
<div class="orderedlist"><ol type="1">
<li>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
Collation-related bracket symbols <code class="computeroutput"><span class="special">[==]</span>
<span class="special">[::]</span> <span class="special">[..]</span></code>
</li>
<li>
<li class="listitem">
Escaped characters <code class="computeroutput"><span class="special">\</span></code>
</li>
<li>
<li class="listitem">
Character set (bracket expression) <code class="computeroutput"><span class="special">[]</span></code>
</li>
<li>
<li class="listitem">
Grouping <code class="computeroutput"><span class="special">()</span></code>
</li>
<li>
<li class="listitem">
Single-character-ERE duplication <code class="computeroutput"><span class="special">*</span>
<span class="special">+</span> <span class="special">?</span>
<span class="special">{</span><span class="identifier">m</span><span class="special">,</span><span class="identifier">n</span><span class="special">}</span></code>
</li>
<li>
<li class="listitem">
Concatenation
</li>
<li>
<li class="listitem">
Anchoring ^$
</li>
<li>
<li class="listitem">
Alternation <code class="computeroutput"><span class="special">|</span></code>
</li>
</ol></div>
<a name="boost_regex.syntax.basic_extended.what_gets_matched"></a><h5>
<a name="id1004087"></a>
<a name="boost_regex.syntax.basic_extended.what_gets_matched-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.what_gets_matched">What
Gets Matched</a>
</h5>
@ -1110,11 +1110,11 @@ cab
rule</a>.
</p>
<a name="boost_regex.syntax.basic_extended.variations"></a><h4>
<a name="id1004108"></a>
<a name="boost_regex.syntax.basic_extended.variations-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.variations">Variations</a>
</h4>
<a name="boost_regex.syntax.basic_extended.egrep"></a><h5>
<a name="id1004122"></a>
<a name="boost_regex.syntax.basic_extended.egrep-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.egrep">Egrep</a>
</h5>
<p>
@ -1135,7 +1135,7 @@ cab
used with the -E option.
</p>
<a name="boost_regex.syntax.basic_extended.awk"></a><h5>
<a name="id1004224"></a>
<a name="boost_regex.syntax.basic_extended.awk-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.awk">awk</a>
</h5>
<p>
@ -1149,7 +1149,7 @@ cab
these by default anyway.
</p>
<a name="boost_regex.syntax.basic_extended.options"></a><h4>
<a name="id1004249"></a>
<a name="boost_regex.syntax.basic_extended.options-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.options">Options</a>
</h4>
<p>
@ -1162,7 +1162,7 @@ cab
modify how the case and locale sensitivity are to be applied.
</p>
<a name="boost_regex.syntax.basic_extended.references"></a><h4>
<a name="id1004327"></a>
<a name="boost_regex.syntax.basic_extended.references-heading"></a>
<a class="link" href="basic_extended.html#boost_regex.syntax.basic_extended.references">References</a>
</h4>
<p>
@ -1183,7 +1183,7 @@ cab
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2010 John Maddock<p>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2010 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>

64
doc/html/boost_regex/syntax/basic_syntax.html
View File

@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>POSIX Basic Regular Expression Syntax</title>
<link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../../index.html" title="Boost.Regex">
<link rel="up" href="../syntax.html" title="Regular Expression Syntax">
<link rel="prev" href="basic_extended.html" title="POSIX Extended Regular Expression Syntax">
@ -22,13 +22,13 @@
<div class="spirit-nav">
<a accesskey="p" href="basic_extended.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../syntax.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="character_classes.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_regex.syntax.basic_syntax"></a><a class="link" href="basic_syntax.html" title="POSIX Basic Regular Expression Syntax">POSIX Basic Regular
Expression Syntax</a>
</h3></div></div></div>
<a name="boost_regex.syntax.basic_syntax.synopsis"></a><h4>
<a name="id1004376"></a>
<a name="boost_regex.syntax.basic_syntax.synopsis-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.synopsis">Synopsis</a>
</h4>
<p>
@ -37,13 +37,13 @@
the flag <code class="computeroutput"><span class="identifier">basic</span></code> to the regex
constructor (see <a class="link" href="../ref/syntax_option_type.html" title="syntax_option_type"><code class="computeroutput"><span class="identifier">syntax_option_type</span></code></a>), for example:
</p>
<pre class="programlisting"><span class="comment">// e1 is a case sensitive POSIX-Basic expression:
</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e1</span><span class="special">(</span><span class="identifier">my_expression</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">basic</span><span class="special">);</span>
<span class="comment">// e2 a case insensitive POSIX-Basic expression:
</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e2</span><span class="special">(</span><span class="identifier">my_expression</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">basic</span><span class="special">|</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">icase</span><span class="special">);</span>
<pre class="programlisting"><span class="comment">// e1 is a case sensitive POSIX-Basic expression:</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e1</span><span class="special">(</span><span class="identifier">my_expression</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">basic</span><span class="special">);</span>
<span class="comment">// e2 a case insensitive POSIX-Basic expression:</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e2</span><span class="special">(</span><span class="identifier">my_expression</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">basic</span><span class="special">|</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">icase</span><span class="special">);</span>
</pre>
<a name="boost_regex.posix_basic"></a><a name="boost_regex.syntax.basic_syntax.posix_basic_syntax"></a><h4>
<a name="id1004568"></a>
<a name="boost_regex.syntax.basic_syntax.posix_basic_syntax-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.posix_basic_syntax">POSIX
Basic Syntax</a>
</h4>
@ -53,25 +53,25 @@
</p>
<pre class="programlisting">.[\*^$</pre>
<a name="boost_regex.syntax.basic_syntax.wildcard_"></a><h5>
<a name="id1004590"></a>
<a name="boost_regex.syntax.basic_syntax.wildcard_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.wildcard_">Wildcard:</a>
</h5>
<p>
The single character '.' when used outside of a character set will match
any single character except:
</p>
<div class="itemizedlist"><ul type="disc">
<li>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
The NULL character when the flag <code class="computeroutput"><span class="identifier">match_no_dot_null</span></code>
is passed to the matching algorithms.
</li>
<li>
<li class="listitem">
The newline character when the flag <code class="computeroutput"><span class="identifier">match_not_dot_newline</span></code>
is passed to the matching algorithms.
</li>
</ul></div>
<a name="boost_regex.syntax.basic_syntax.anchors_"></a><h5>
<a name="id1004641"></a>
<a name="boost_regex.syntax.basic_syntax.anchors_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.anchors_">Anchors:</a>
</h5>
<p>
@ -83,7 +83,7 @@
of an expression, or the last character of a sub-expression.
</p>
<a name="boost_regex.syntax.basic_syntax.marked_sub_expressions_"></a><h5>
<a name="id1004662"></a>
<a name="boost_regex.syntax.basic_syntax.marked_sub_expressions_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.marked_sub_expressions_">Marked
sub-expressions:</a>
</h5>
@ -95,7 +95,7 @@
by a back-reference.
</p>
<a name="boost_regex.syntax.basic_syntax.repeats_"></a><h5>
<a name="id1004693"></a>
<a name="boost_regex.syntax.basic_syntax.repeats_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.repeats_">Repeats:</a>
</h5>
<p>
@ -153,7 +153,7 @@ aaaa
to.
</p>
<a name="boost_regex.syntax.basic_syntax.back_references_"></a><h5>
<a name="id1004857"></a>
<a name="boost_regex.syntax.basic_syntax.back_references_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.back_references_">Back references:</a>
</h5>
<p>
@ -171,7 +171,7 @@ aaaa
</p>
<pre class="programlisting">aaabba</pre>
<a name="boost_regex.syntax.basic_syntax.character_sets_"></a><h5>
<a name="id1004906"></a>
<a name="boost_regex.syntax.basic_syntax.character_sets_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.character_sets_">Character
sets:</a>
</h5>
@ -184,7 +184,7 @@ aaaa
A bracket expression may contain any combination of the following:
</p>
<a name="boost_regex.syntax.basic_syntax.single_characters_"></a><h6>
<a name="id1004927"></a>
<a name="boost_regex.syntax.basic_syntax.single_characters_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.single_characters_">Single
characters:</a>
</h6>
@ -193,7 +193,7 @@ aaaa
or 'c'.
</p>
<a name="boost_regex.syntax.basic_syntax.character_ranges_"></a><h6>
<a name="id1004958"></a>
<a name="boost_regex.syntax.basic_syntax.character_ranges_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.character_ranges_">Character
ranges:</a>
</h6>
@ -209,7 +209,7 @@ aaaa
of the characters only.
</p>
<a name="boost_regex.syntax.basic_syntax.negation_"></a><h6>
<a name="id1005014"></a>
<a name="boost_regex.syntax.basic_syntax.negation_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.negation_">Negation:</a>
</h6>
<p>
@ -218,7 +218,7 @@ aaaa
range a-c.
</p>
<a name="boost_regex.syntax.basic_syntax.character_classes_"></a><h6>
<a name="id1005053"></a>
<a name="boost_regex.syntax.basic_syntax.character_classes_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.character_classes_">Character
classes:</a>
</h6>
@ -228,7 +228,7 @@ aaaa
<a class="link" href="character_classes.html" title="Character Class Names">character class names</a>.
</p>
<a name="boost_regex.syntax.basic_syntax.collating_elements_"></a><h6>
<a name="id1005104"></a>
<a name="boost_regex.syntax.basic_syntax.collating_elements_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.collating_elements_">Collating
Elements:</a>
</h6>
@ -257,7 +257,7 @@ aaaa
element names</a>.
</p>
<a name="boost_regex.syntax.basic_syntax.equivalence_classes_"></a><h6>
<a name="id1005196"></a>
<a name="boost_regex.syntax.basic_syntax.equivalence_classes_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.equivalence_classes_">Equivalence
classes:</a>
</h6>
@ -274,7 +274,7 @@ aaaa
or even all locales on one platform.
</p>
<a name="boost_regex.syntax.basic_syntax.combinations_"></a><h6>
<a name="id1005253"></a>
<a name="boost_regex.syntax.basic_syntax.combinations_-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.combinations_">Combinations:</a>
</h6>
<p>
@ -282,7 +282,7 @@ aaaa
<code class="computeroutput"><span class="special">[[:</span><span class="identifier">digit</span><span class="special">:]</span><span class="identifier">a</span><span class="special">-</span><span class="identifier">c</span><span class="special">[.</span><span class="identifier">NUL</span><span class="special">.]].</span></code>
</p>
<a name="boost_regex.syntax.basic_syntax.escapes"></a><h5>
<a name="id1005728"></a>
<a name="boost_regex.syntax.basic_syntax.escapes-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.escapes">Escapes</a>
</h5>
<p>
@ -297,7 +297,7 @@ aaaa
will match either a literal '\' or a '^'.
</p>
<a name="boost_regex.syntax.basic_syntax.what_gets_matched"></a><h4>
<a name="id1005761"></a>
<a name="boost_regex.syntax.basic_syntax.what_gets_matched-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.what_gets_matched">What Gets
Matched</a>
</h4>
@ -307,11 +307,11 @@ aaaa
rule</a>.
</p>
<a name="boost_regex.syntax.basic_syntax.variations"></a><h4>
<a name="id1005783"></a>
<a name="boost_regex.syntax.basic_syntax.variations-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.variations">Variations</a>
</h4>
<a name="boost_regex.grep_syntax"></a><a name="boost_regex.syntax.basic_syntax.grep"></a><h5>
<a name="id1005800"></a>
<a name="boost_regex.syntax.basic_syntax.grep-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.grep">Grep</a>
</h5>
<p>
@ -329,7 +329,7 @@ aaaa
As its name suggests, this behavior is consistent with the Unix utility grep.
</p>
<a name="boost_regex.syntax.basic_syntax.emacs"></a><h5>
<a name="id1005895"></a>
<a name="boost_regex.syntax.basic_syntax.emacs-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.emacs">emacs</a>
</h5>
<p>
@ -609,7 +609,7 @@ aaaa
leftmost-longest rule</a>.
</p>
<a name="boost_regex.syntax.basic_syntax.options"></a><h4>
<a name="id1006335"></a>
<a name="boost_regex.syntax.basic_syntax.options-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.options">Options</a>
</h4>
<p>
@ -623,7 +623,7 @@ aaaa
options</a> modify how the case and locale sensitivity are to be applied.
</p>
<a name="boost_regex.syntax.basic_syntax.references"></a><h4>
<a name="id1006442"></a>
<a name="boost_regex.syntax.basic_syntax.references-heading"></a>
<a class="link" href="basic_syntax.html#boost_regex.syntax.basic_syntax.references">References</a>
</h4>
<p>
@ -642,7 +642,7 @@ aaaa
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2010 John Maddock<p>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2010 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>

6
doc/html/boost_regex/syntax/character_classes.html
View File

@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>Character Class Names</title>
<link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../../index.html" title="Boost.Regex">
<link rel="up" href="../syntax.html" title="Regular Expression Syntax">
<link rel="prev" href="basic_syntax.html" title="POSIX Basic Regular Expression Syntax">
@ -22,7 +22,7 @@
<div class="spirit-nav">
<a accesskey="p" href="basic_syntax.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../syntax.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="character_classes/std_char_clases.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_regex.syntax.character_classes"></a><a class="link" href="character_classes.html" title="Character Class Names">Character Class
Names</a>
@ -36,7 +36,7 @@
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2010 John Maddock<p>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2010 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>

6
doc/html/boost_regex/syntax/character_classes/optional_char_class_names.html
View File

@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>Character classes that are supported by Unicode Regular Expressions</title>
<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../../../index.html" title="Boost.Regex">
<link rel="up" href="../character_classes.html" title="Character Class Names">
<link rel="prev" href="std_char_clases.html" title="Character Classes that are Always Supported">
@ -22,7 +22,7 @@
<div class="spirit-nav">
<a accesskey="p" href="std_char_clases.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../character_classes.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="../collating_names.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="boost_regex.syntax.character_classes.optional_char_class_names"></a><a class="link" href="optional_char_class_names.html" title="Character classes that are supported by Unicode Regular Expressions">Character
classes that are supported by Unicode Regular Expressions</a>
@ -527,7 +527,7 @@
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2010 John Maddock<p>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2010 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>

6
doc/html/boost_regex/syntax/character_classes/std_char_clases.html
View File

@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>Character Classes that are Always Supported</title>
<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../../../index.html" title="Boost.Regex">
<link rel="up" href="../character_classes.html" title="Character Class Names">
<link rel="prev" href="../character_classes.html" title="Character Class Names">
@ -22,7 +22,7 @@
<div class="spirit-nav">
<a accesskey="p" href="../character_classes.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../character_classes.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="optional_char_class_names.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="boost_regex.syntax.character_classes.std_char_clases"></a><a class="link" href="std_char_clases.html" title="Character Classes that are Always Supported">Character
Classes that are Always Supported</a>
@ -382,7 +382,7 @@
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2010 John Maddock<p>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2010 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>

6
doc/html/boost_regex/syntax/collating_names.html
View File

@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>Collating Names</title>
<link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../../index.html" title="Boost.Regex">
<link rel="up" href="../syntax.html" title="Regular Expression Syntax">
<link rel="prev" href="character_classes/optional_char_class_names.html" title="Character classes that are supported by Unicode Regular Expressions">
@ -22,7 +22,7 @@
<div class="spirit-nav">
<a accesskey="p" href="character_classes/optional_char_class_names.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../syntax.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="collating_names/digraphs.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_regex.syntax.collating_names"></a><a class="link" href="collating_names.html" title="Collating Names">Collating Names</a>
</h3></div></div></div>
@ -36,7 +36,7 @@
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2010 John Maddock<p>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2010 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>

6
doc/html/boost_regex/syntax/collating_names/digraphs.html
View File

@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>Digraphs</title>
<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../../../index.html" title="Boost.Regex">
<link rel="up" href="../collating_names.html" title="Collating Names">
<link rel="prev" href="../collating_names.html" title="Collating Names">
@ -22,7 +22,7 @@
<div class="spirit-nav">
<a accesskey="p" href="../collating_names.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../collating_names.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="posix_symbolic_names.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="boost_regex.syntax.collating_names.digraphs"></a><a class="link" href="digraphs.html" title="Digraphs">Digraphs</a>
</h4></div></div></div>
@ -47,7 +47,7 @@
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2010 John Maddock<p>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2010 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>

6
doc/html/boost_regex/syntax/collating_names/named_unicode.html
View File

@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>Named Unicode Characters</title>
<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../../../index.html" title="Boost.Regex">
<link rel="up" href="../collating_names.html" title="Collating Names">
<link rel="prev" href="posix_symbolic_names.html" title="POSIX Symbolic Names">
@ -22,7 +22,7 @@
<div class="spirit-nav">
<a accesskey="p" href="posix_symbolic_names.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../collating_names.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="../leftmost_longest_rule.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="boost_regex.syntax.collating_names.named_unicode"></a><a class="link" href="named_unicode.html" title="Named Unicode Characters">Named
Unicode Characters</a>
@ -40,7 +40,7 @@
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2010 John Maddock<p>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2010 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>

6
doc/html/boost_regex/syntax/collating_names/posix_symbolic_names.html
View File

@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>POSIX Symbolic Names</title>
<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
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<link rel="prev" href="digraphs.html" title="Digraphs">
@ -22,7 +22,7 @@
<div class="spirit-nav">
<a accesskey="p" href="digraphs.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../collating_names.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="named_unicode.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="boost_regex.syntax.collating_names.posix_symbolic_names"></a><a class="link" href="posix_symbolic_names.html" title="POSIX Symbolic Names">POSIX
Symbolic Names</a>
@ -971,7 +971,7 @@
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2010 John Maddock<p>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2010 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>

22
doc/html/boost_regex/syntax/leftmost_longest_rule.html
View File

@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>The Leftmost Longest Rule</title>
<link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../../index.html" title="Boost.Regex">
<link rel="up" href="../syntax.html" title="Regular Expression Syntax">
<link rel="prev" href="collating_names/named_unicode.html" title="Named Unicode Characters">
@ -22,7 +22,7 @@
<div class="spirit-nav">
<a accesskey="p" href="collating_names/named_unicode.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../syntax.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="../format.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_regex.syntax.leftmost_longest_rule"></a><a class="link" href="leftmost_longest_rule.html" title="The Leftmost Longest Rule">The Leftmost
Longest Rule</a>
@ -32,32 +32,32 @@
location, for POSIX basic and extended regular expressions, the "best"
match is determined as follows:
</p>
<div class="orderedlist"><ol type="1">
<li>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
Find the leftmost match, if there is only one match possible at this
location then return it.
</li>
<li>
<li class="listitem">
Find the longest of the possible matches, along with any ties. If there
is only one such possible match then return it.
</li>
<li>
<li class="listitem">
If there are no marked sub-expressions, then all the remaining alternatives
are indistinguishable; return the first of these found.
</li>
<li>
<li class="listitem">
Find the match which has matched the first sub-expression in the leftmost
position, along with any ties. If there is only on such match possible
then return it.
</li>
<li>
<li class="listitem">
Find the match which has the longest match for the first sub-expression,
along with any ties. If there is only one such match then return it.
</li>
<li>
<li class="listitem">
Repeat steps 4 and 5 for each additional marked sub-expression.
</li>
<li>
<li class="listitem">
If there is still more than one possible match remaining, then they are
indistinguishable; return the first one found.
</li>
@ -65,7 +65,7 @@
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2010 John Maddock<p>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2010 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>

164
doc/html/boost_regex/syntax/perl_syntax.html
View File

@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>Perl Regular Expression Syntax</title>
<link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../../index.html" title="Boost.Regex">
<link rel="up" href="../syntax.html" title="Regular Expression Syntax">
<link rel="prev" href="../syntax.html" title="Regular Expression Syntax">
@ -22,13 +22,13 @@
<div class="spirit-nav">
<a accesskey="p" href="../syntax.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../syntax.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="basic_extended.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_regex.syntax.perl_syntax"></a><a class="link" href="perl_syntax.html" title="Perl Regular Expression Syntax">Perl Regular Expression
Syntax</a>
</h3></div></div></div>
<a name="boost_regex.syntax.perl_syntax.synopsis"></a><h4>
<a name="id994928"></a>
<a name="boost_regex.syntax.perl_syntax.synopsis-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.synopsis">Synopsis</a>
</h4>
<p>
@ -36,14 +36,14 @@
language Perl . Perl regular expressions are the default behavior in Boost.Regex
or you can pass the flag <code class="literal">perl</code> to the <a class="link" href="../ref/basic_regex.html" title="basic_regex"><code class="computeroutput"><span class="identifier">basic_regex</span></code></a> constructor, for example:
</p>
<pre class="programlisting"><span class="comment">// e1 is a case sensitive Perl regular expression:
</span><span class="comment">// since Perl is the default option there's no need to explicitly specify the syntax used here:
</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e1</span><span class="special">(</span><span class="identifier">my_expression</span><span class="special">);</span>
<span class="comment">// e2 a case insensitive Perl regular expression:
</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e2</span><span class="special">(</span><span class="identifier">my_expression</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">perl</span><span class="special">|</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">icase</span><span class="special">);</span>
<pre class="programlisting"><span class="comment">// e1 is a case sensitive Perl regular expression: </span>
<span class="comment">// since Perl is the default option there's no need to explicitly specify the syntax used here:</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e1</span><span class="special">(</span><span class="identifier">my_expression</span><span class="special">);</span>
<span class="comment">// e2 a case insensitive Perl regular expression:</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e2</span><span class="special">(</span><span class="identifier">my_expression</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">perl</span><span class="special">|</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span><span class="special">::</span><span class="identifier">icase</span><span class="special">);</span>
</pre>
<a name="boost_regex.syntax.perl_syntax.perl_regular_expression_syntax"></a><h4>
<a name="id995076"></a>
<a name="boost_regex.syntax.perl_syntax.perl_regular_expression_syntax-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.perl_regular_expression_syntax">Perl
Regular Expression Syntax</a>
</h4>
@ -53,27 +53,27 @@
</p>
<pre class="programlisting">.[{}()\*+?|^$</pre>
<a name="boost_regex.syntax.perl_syntax.wildcard"></a><h5>
<a name="id995100"></a>
<a name="boost_regex.syntax.perl_syntax.wildcard-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.wildcard">Wildcard</a>
</h5>
<p>
The single character '.' when used outside of a character set will match
any single character except:
</p>
<div class="itemizedlist"><ul type="disc">
<li>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
The NULL character when the <a class="link" href="../ref/match_flag_type.html" title="match_flag_type">flag
<code class="literal">match_not_dot_null</code></a> is passed to the matching
algorithms.
</li>
<li>
<li class="listitem">
The newline character when the <a class="link" href="../ref/match_flag_type.html" title="match_flag_type">flag
<code class="literal">match_not_dot_newline</code></a> is passed to the matching
algorithms.
</li>
</ul></div>
<a name="boost_regex.syntax.perl_syntax.anchors"></a><h5>
<a name="id995154"></a>
<a name="boost_regex.syntax.perl_syntax.anchors-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.anchors">Anchors</a>
</h5>
<p>
@ -83,7 +83,7 @@
A '$' character shall match the end of a line.
</p>
<a name="boost_regex.syntax.perl_syntax.marked_sub_expressions"></a><h5>
<a name="id995175"></a>
<a name="boost_regex.syntax.perl_syntax.marked_sub_expressions-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.marked_sub_expressions">Marked
sub-expressions</a>
</h5>
@ -94,7 +94,7 @@
can also repeated, or referred to by a back-reference.
</p>
<a name="boost_regex.syntax.perl_syntax.non_marking_grouping"></a><h5>
<a name="id995202"></a>
<a name="boost_regex.syntax.perl_syntax.non_marking_grouping-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.non_marking_grouping">Non-marking
grouping</a>
</h5>
@ -107,7 +107,7 @@
without splitting out any separate sub-expressions.
</p>
<a name="boost_regex.syntax.perl_syntax.repeats"></a><h5>
<a name="id995238"></a>
<a name="boost_regex.syntax.perl_syntax.repeats-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.repeats">Repeats</a>
</h5>
<p>
@ -188,7 +188,7 @@
to be applied to.
</p>
<a name="boost_regex.syntax.perl_syntax.non_greedy_repeats"></a><h5>
<a name="id995474"></a>
<a name="boost_regex.syntax.perl_syntax.non_greedy_repeats-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.non_greedy_repeats">Non greedy
repeats</a>
</h5>
@ -218,7 +218,7 @@
while consuming as little input as possible.
</p>
<a name="boost_regex.syntax.perl_syntax.possessive_repeats"></a><h5>
<a name="id995533"></a>
<a name="boost_regex.syntax.perl_syntax.possessive_repeats-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.possessive_repeats">Possessive
repeats</a>
</h5>
@ -250,7 +250,7 @@
while giving nothing back.
</p>
<a name="boost_regex.syntax.perl_syntax.back_references"></a><h5>
<a name="id995592"></a>
<a name="boost_regex.syntax.perl_syntax.back_references-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.back_references">Back references</a>
</h5>
<p>
@ -360,7 +360,7 @@
named "two".
</p>
<a name="boost_regex.syntax.perl_syntax.alternation"></a><h5>
<a name="id995818"></a>
<a name="boost_regex.syntax.perl_syntax.alternation-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.alternation">Alternation</a>
</h5>
<p>
@ -387,7 +387,7 @@
<code class="literal">(?:abc)??</code> has exactly the same effect.
</p>
<a name="boost_regex.syntax.perl_syntax.character_sets"></a><h5>
<a name="id995887"></a>
<a name="boost_regex.syntax.perl_syntax.character_sets-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.character_sets">Character sets</a>
</h5>
<p>
@ -399,38 +399,36 @@
A bracket expression may contain any combination of the following:
</p>
<a name="boost_regex.syntax.perl_syntax.single_characters"></a><h6>
<a name="id995918"></a>
<a name="boost_regex.syntax.perl_syntax.single_characters-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.single_characters">Single characters</a>
</h6>
<p>
For example <code class="literal">[abc]</code>, will match any of the characters 'a',
'b', or 'c'.
For example =[abc]=, will match any of the characters 'a', 'b', or 'c'.
</p>
<a name="boost_regex.syntax.perl_syntax.character_ranges"></a><h6>
<a name="id995940"></a>
<a name="boost_regex.syntax.perl_syntax.character_ranges-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.character_ranges">Character
ranges</a>
</h6>
<p>
For example <code class="literal">[a-c]</code> will match any single character in the
range 'a' to 'c'. By default, for Perl regular expressions, a character x
is within the range y to z, if the code point of the character lies within
the codepoints of the endpoints of the range. Alternatively, if you set the
<a class="link" href="../ref/syntax_option_type/syntax_option_type_perl.html" title="Options for Perl Regular Expressions"><code class="literal">collate</code>
For example =[a-c]= will match any single character in the range 'a' to 'c'.
By default, for Perl regular expressions, a character x is within the range
y to z, if the code point of the character lies within the codepoints of
the endpoints of the range. Alternatively, if you set the <a class="link" href="../ref/syntax_option_type/syntax_option_type_perl.html" title="Options for Perl Regular Expressions"><code class="literal">collate</code>
flag</a> when constructing the regular expression, then ranges are locale
sensitive.
</p>
<a name="boost_regex.syntax.perl_syntax.negation"></a><h6>
<a name="id995972"></a>
<a name="boost_regex.syntax.perl_syntax.negation-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.negation">Negation</a>
</h6>
<p>
If the bracket-expression begins with the ^ character, then it matches the
complement of the characters it contains, for example <code class="literal">[^a-c]</code>
complement of the characters it contains, for example =<code class="literal">a-c</code>=
matches any character that is not in the range <code class="literal">a-c</code>.
</p>
<a name="boost_regex.syntax.perl_syntax.character_classes"></a><h6>
<a name="id996000"></a>
<a name="boost_regex.syntax.perl_syntax.character_classes-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.character_classes">Character
classes</a>
</h6>
@ -441,7 +439,7 @@
class names</a>.
</p>
<a name="boost_regex.syntax.perl_syntax.collating_elements"></a><h6>
<a name="id996032"></a>
<a name="boost_regex.syntax.perl_syntax.collating_elements-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.collating_elements">Collating
Elements</a>
</h6>
@ -463,7 +461,7 @@
matches a <code class="literal">\0</code> character.
</p>
<a name="boost_regex.syntax.perl_syntax.equivalence_classes"></a><h6>
<a name="id996094"></a>
<a name="boost_regex.syntax.perl_syntax.equivalence_classes-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.equivalence_classes">Equivalence
classes</a>
</h6>
@ -480,7 +478,7 @@
or even all locales on one platform.
</p>
<a name="boost_regex.syntax.perl_syntax.escaped_characters"></a><h6>
<a name="id996142"></a>
<a name="boost_regex.syntax.perl_syntax.escaped_characters-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.escaped_characters">Escaped
Characters</a>
</h6>
@ -492,7 +490,7 @@
is <span class="emphasis"><em>not</em></span> a "word" character.
</p>
<a name="boost_regex.syntax.perl_syntax.combinations"></a><h6>
<a name="id996211"></a>
<a name="boost_regex.syntax.perl_syntax.combinations-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.combinations">Combinations</a>
</h6>
<p>
@ -500,7 +498,7 @@
<code class="literal">[[:digit:]a-c[.NUL.]]</code>.
</p>
<a name="boost_regex.syntax.perl_syntax.escapes"></a><h5>
<a name="id996232"></a>
<a name="boost_regex.syntax.perl_syntax.escapes-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.escapes">Escapes</a>
</h5>
<p>
@ -692,7 +690,7 @@
</tbody>
</table></div>
<a name="boost_regex.syntax.perl_syntax._quot_single_character_quot__character_classes_"></a><h6>
<a name="id996637"></a>
<a name="boost_regex.syntax.perl_syntax._quot_single_character_quot__character_classes_-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax._quot_single_character_quot__character_classes_">"Single
character" character classes:</a>
</h6>
@ -894,7 +892,7 @@
</tbody>
</table></div>
<a name="boost_regex.syntax.perl_syntax.character_properties"></a><h6>
<a name="id997326"></a>
<a name="boost_regex.syntax.perl_syntax.character_properties-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.character_properties">Character
Properties</a>
</h6>
@ -1002,7 +1000,7 @@
as does <code class="literal">\p{digit}</code>.
</p>
<a name="boost_regex.syntax.perl_syntax.word_boundaries"></a><h6>
<a name="id997626"></a>
<a name="boost_regex.syntax.perl_syntax.word_boundaries-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.word_boundaries">Word Boundaries</a>
</h6>
<p>
@ -1021,7 +1019,7 @@
<code class="literal">\B</code> Matches only when not at a word boundary.
</p>
<a name="boost_regex.syntax.perl_syntax.buffer_boundaries"></a><h6>
<a name="id997678"></a>
<a name="boost_regex.syntax.perl_syntax.buffer_boundaries-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.buffer_boundaries">Buffer boundaries</a>
</h6>
<p>
@ -1036,7 +1034,7 @@
\' Matches at the end of a buffer only.
</p>
<p>
\A Matches at the start of a buffer only (the same as <code class="literal">\\\`</code>).
\A Matches at the start of a buffer only (the same as =\`=).
</p>
<p>
\z Matches at the end of a buffer only (the same as <code class="literal">\\'</code>).
@ -1048,7 +1046,7 @@
<code class="literal">(?=\n?\z)</code>.
</p>
<a name="boost_regex.syntax.perl_syntax.continuation_escape"></a><h6>
<a name="id997735"></a>
<a name="boost_regex.syntax.perl_syntax.continuation_escape-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.continuation_escape">Continuation
Escape</a>
</h6>
@ -1060,7 +1058,7 @@
one ended.
</p>
<a name="boost_regex.syntax.perl_syntax.quoting_escape"></a><h6>
<a name="id997757"></a>
<a name="boost_regex.syntax.perl_syntax.quoting_escape-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.quoting_escape">Quoting escape</a>
</h6>
<p>
@ -1073,7 +1071,7 @@
<span class="special">\*+</span><span class="identifier">aaa</span>
</pre>
<a name="boost_regex.syntax.perl_syntax.unicode_escapes"></a><h6>
<a name="id997804"></a>
<a name="boost_regex.syntax.perl_syntax.unicode_escapes-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.unicode_escapes">Unicode escapes</a>
</h6>
<p>
@ -1083,7 +1081,7 @@
followed by a sequence of zero or more combining characters.
</p>
<a name="boost_regex.syntax.perl_syntax.matching_line_endings"></a><h6>
<a name="id997830"></a>
<a name="boost_regex.syntax.perl_syntax.matching_line_endings-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.matching_line_endings">Matching
Line Endings</a>
</h6>
@ -1092,7 +1090,7 @@
sequence, specifically it is identical to the expression <code class="literal">(?&gt;\x0D\x0A?|[\x0A-\x0C\x85\x{2028}\x{2029}])</code>.
</p>
<a name="boost_regex.syntax.perl_syntax.keeping_back_some_text"></a><h6>
<a name="id997856"></a>
<a name="boost_regex.syntax.perl_syntax.keeping_back_some_text-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.keeping_back_some_text">Keeping
back some text</a>
</h6>
@ -1107,7 +1105,7 @@
This can be used to simulate variable width lookbehind assertions.
</p>
<a name="boost_regex.syntax.perl_syntax.any_other_escape"></a><h6>
<a name="id997886"></a>
<a name="boost_regex.syntax.perl_syntax.any_other_escape-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.any_other_escape">Any other
escape</a>
</h6>
@ -1116,7 +1114,7 @@
\@ matches a literal '@'.
</p>
<a name="boost_regex.syntax.perl_syntax.perl_extended_patterns"></a><h5>
<a name="id997903"></a>
<a name="boost_regex.syntax.perl_syntax.perl_extended_patterns-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.perl_extended_patterns">Perl
Extended Patterns</a>
</h5>
@ -1125,7 +1123,7 @@
<code class="literal">(?</code>.
</p>
<a name="boost_regex.syntax.perl_syntax.named_subexpressions"></a><h6>
<a name="id997925"></a>
<a name="boost_regex.syntax.perl_syntax.named_subexpressions-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.named_subexpressions">Named
Subexpressions</a>
</h6>
@ -1147,14 +1145,14 @@
format string for search and replace operations, or in the <a class="link" href="../ref/match_results.html" title="match_results"><code class="computeroutput"><span class="identifier">match_results</span></code></a> member functions.
</p>
<a name="boost_regex.syntax.perl_syntax.comments"></a><h6>
<a name="id998020"></a>
<a name="boost_regex.syntax.perl_syntax.comments-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.comments">Comments</a>
</h6>
<p>
<code class="literal">(?# ... )</code> is treated as a comment, it's contents are ignored.
</p>
<a name="boost_regex.syntax.perl_syntax.modifiers"></a><h6>
<a name="id998042"></a>
<a name="boost_regex.syntax.perl_syntax.modifiers-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.modifiers">Modifiers</a>
</h6>
<p>
@ -1168,7 +1166,7 @@
pattern only.
</p>
<a name="boost_regex.syntax.perl_syntax.non_marking_groups"></a><h6>
<a name="id998077"></a>
<a name="boost_regex.syntax.perl_syntax.non_marking_groups-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.non_marking_groups">Non-marking
groups</a>
</h6>
@ -1177,7 +1175,7 @@
an additional sub-expression.
</p>
<a name="boost_regex.syntax.perl_syntax.branch_reset"></a><h6>
<a name="id998099"></a>
<a name="boost_regex.syntax.perl_syntax.branch_reset-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.branch_reset">Branch reset</a>
</h6>
<p>
@ -1199,7 +1197,7 @@
# 1 2 2 3 2 3 4
</pre>
<a name="boost_regex.syntax.perl_syntax.lookahead"></a><h6>
<a name="id998136"></a>
<a name="boost_regex.syntax.perl_syntax.lookahead-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.lookahead">Lookahead</a>
</h6>
<p>
@ -1222,7 +1220,7 @@
could be used to validate the password.
</p>
<a name="boost_regex.syntax.perl_syntax.lookbehind"></a><h6>
<a name="id998210"></a>
<a name="boost_regex.syntax.perl_syntax.lookbehind-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.lookbehind">Lookbehind</a>
</h6>
<p>
@ -1236,7 +1234,7 @@
(pattern must be of fixed length).
</p>
<a name="boost_regex.syntax.perl_syntax.independent_sub_expressions"></a><h6>
<a name="id998243"></a>
<a name="boost_regex.syntax.perl_syntax.independent_sub_expressions-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.independent_sub_expressions">Independent
sub-expressions</a>
</h6>
@ -1249,7 +1247,7 @@
no match is found at all.
</p>
<a name="boost_regex.syntax.perl_syntax.recursive_expressions"></a><h6>
<a name="id998274"></a>
<a name="boost_regex.syntax.perl_syntax.recursive_expressions-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.recursive_expressions">Recursive
Expressions</a>
</h6>
@ -1276,7 +1274,7 @@
<code class="literal">(?&amp;NAME)</code> recurses to named sub-expression <span class="emphasis"><em>NAME</em></span>.
</p>
<a name="boost_regex.syntax.perl_syntax.conditional_expressions"></a><h6>
<a name="id998383"></a>
<a name="boost_regex.syntax.perl_syntax.conditional_expressions-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.conditional_expressions">Conditional
Expressions</a>
</h6>
@ -1298,27 +1296,27 @@
<p>
Here is a summary of the possible predicates:
</p>
<div class="itemizedlist"><ul type="disc">
<li>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
<code class="literal">(?(?=assert)yes-pattern|no-pattern)</code> Executes <span class="emphasis"><em>yes-pattern</em></span>
if the forward look-ahead assert matches, otherwise executes <span class="emphasis"><em>no-pattern</em></span>.
</li>
<li>
<li class="listitem">
<code class="literal">(?(?!assert)yes-pattern|no-pattern)</code> Executes <span class="emphasis"><em>yes-pattern</em></span>
if the forward look-ahead assert does not match, otherwise executes
<span class="emphasis"><em>no-pattern</em></span>.
</li>
<li>
<li class="listitem">
<code class="literal">(?(R)yes-pattern|no-pattern)</code> Executes <span class="emphasis"><em>yes-pattern</em></span>
if we are executing inside a recursion, otherwise executes <span class="emphasis"><em>no-pattern</em></span>.
</li>
<li>
<li class="listitem">
<code class="literal">(?(R<span class="emphasis"><em>N</em></span>)yes-pattern|no-pattern)</code>
Executes <span class="emphasis"><em>yes-pattern</em></span> if we are executing inside
a recursion to sub-expression <span class="emphasis"><em>N</em></span>, otherwise executes
<span class="emphasis"><em>no-pattern</em></span>.
</li>
<li>
<li class="listitem">
<code class="literal">(?(DEFINE)never-exectuted-pattern)</code> Defines a block
of code that is never executed and matches no characters: this is usually
used to define one or more named sub-expressions which are refered to
@ -1326,42 +1324,42 @@
</li>
</ul></div>
<a name="boost_regex.syntax.perl_syntax.operator_precedence"></a><h5>
<a name="id998543"></a>
<a name="boost_regex.syntax.perl_syntax.operator_precedence-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.operator_precedence">Operator
precedence</a>
</h5>
<p>
The order of precedence for of operators is as follows:
</p>
<div class="orderedlist"><ol type="1">
<li>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
Collation-related bracket symbols <code class="computeroutput"><span class="special">[==]</span>
<span class="special">[::]</span> <span class="special">[..]</span></code>
</li>
<li>
<li class="listitem">
Escaped characters <code class="literal">\</code>
</li>
<li>
<li class="listitem">
Character set (bracket expression) <code class="computeroutput"><span class="special">[]</span></code>
</li>
<li>
<li class="listitem">
Grouping <code class="literal">()</code>
</li>
<li>
<li class="listitem">
Single-character-ERE duplication <code class="literal">* + ? {m,n}</code>
</li>
<li>
<li class="listitem">
Concatenation
</li>
<li>
<li class="listitem">
Anchoring ^$
</li>
<li>
<li class="listitem">
Alternation |
</li>
</ol></div>
<a name="boost_regex.syntax.perl_syntax.what_gets_matched"></a><h4>
<a name="id998662"></a>
<a name="boost_regex.syntax.perl_syntax.what_gets_matched-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.what_gets_matched">What gets
matched</a>
</h4>
@ -1537,7 +1535,7 @@
</tbody>
</table></div>
<a name="boost_regex.syntax.perl_syntax.variations"></a><h4>
<a name="id999034"></a>
<a name="boost_regex.syntax.perl_syntax.variations-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.variations">Variations</a>
</h4>
<p>
@ -1546,7 +1544,7 @@
and <code class="literal">JScript</code></a> are all synonyms for <code class="literal">perl</code>.
</p>
<a name="boost_regex.syntax.perl_syntax.options"></a><h4>
<a name="id999080"></a>
<a name="boost_regex.syntax.perl_syntax.options-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.options">Options</a>
</h4>
<p>
@ -1558,7 +1556,7 @@
are to be applied.
</p>
<a name="boost_regex.syntax.perl_syntax.pattern_modifiers"></a><h4>
<a name="id999128"></a>
<a name="boost_regex.syntax.perl_syntax.pattern_modifiers-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.pattern_modifiers">Pattern
Modifiers</a>
</h4>
@ -1570,7 +1568,7 @@
and <code class="literal">no_mod_s</code></a>.
</p>
<a name="boost_regex.syntax.perl_syntax.references"></a><h4>
<a name="id1000957"></a>
<a name="boost_regex.syntax.perl_syntax.references-heading"></a>
<a class="link" href="perl_syntax.html#boost_regex.syntax.perl_syntax.references">References</a>
</h4>
<p>
@ -1579,7 +1577,7 @@
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2010 John Maddock<p>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2010 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>