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authorrrt <rrt>2007-05-02 16:40:53 +0000
committerrrt <rrt>2007-05-02 16:40:53 +0000
commitbdbd6c954b97e7f16640d8ad3569d601bda8c405 (patch)
tree30f9967e166c8ba3b47240e57cdc3e18814f4cf2 /doc
parent14ed95341eb25136311493648387ea3ef0b5fd78 (diff)
downloadlrexlib-bdbd6c954b97e7f16640d8ad3569d601bda8c405.tar.gz
Remove generated HTML files from CVS, and make Makefile work a bit
more widely compatible.
Diffstat (limited to 'doc')
-rwxr-xr-xdoc/Makefile8
-rwxr-xr-xdoc/index.html46
-rwxr-xr-xdoc/manual.html1162
3 files changed, 5 insertions, 1211 deletions
diff --git a/doc/Makefile b/doc/Makefile
index 2eb2498..090d445 100755
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -1,5 +1,8 @@
+# Documentation Makefile
-APP = C:/Python24/python c:/python24/Scripts/rst2html.py
+.SUFFIXES: .txt .html
+
+APP = rst2html
CSS = --stylesheet-path=lrexlib.css --link-stylesheet
HDR = --initial-header-level=2
DT = --date --time
@@ -8,5 +11,4 @@ DT = --date --time
.txt.html:
$(APP) $(CSS) $(GT) $(HDR) $(DT) $< $@
-all: manual.html
-
+all: index.html manual.html
diff --git a/doc/index.html b/doc/index.html
deleted file mode 100755
index 342e9ec..0000000
--- a/doc/index.html
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<meta name="generator" content="Docutils 0.5: http://docutils.sourceforge.net/" />
-<title>Lrexlib 2.2</title>
-<link rel="stylesheet" href="lrexlib.css" type="text/css" />
-</head>
-<body>
-<div class="document" id="lrexlib-2-2">
-<h1 class="title">Lrexlib 2.2</h1>
-
-<div class="line-block">
-<div class="line">by Reuben Thomas (<a class="reference" href="mailto:rrt&#64;sc3d.org">rrt&#64;sc3d.org</a>)</div>
-<div class="line">and Shmuel Zeigerman (<a class="reference" href="mailto:shmuz&#64;actcom.co.il">shmuz&#64;actcom.co.il</a>) [maintainer]</div>
-</div>
-<p>Lrexlib is a regular expression library for Lua 5.1. The makefiles
-provided build it into shared libraries called rex_posix.so and
-rex_pcre.so, which can be used with require or loadlib.</p>
-<p>Lrexlib is copyright Reuben Thomas 2000-2007 and copyright Shmuel
-Zeigerman 2004-2007, and is released under the MIT license, like Lua
-(see <a class="reference" href="http://www.lua.org/copyright.html">http://www.lua.org/copyright.html</a> for the full license; it's
-basically the same as the BSD license). There is no warranty.</p>
-<p>Please report bugs and make suggestions to the maintainer, or use the
-LuaForge trackers and mailing lists.</p>
-<p>Thanks to Thatcher Ulrich for bug and warning fixes, and to Nick
-Gammon for adding support for PCRE named subpatterns.</p>
-<hr class="docutils" />
-<div class="section">
-<h2><a id="links" name="links">Links</a></h2>
-<ul class="simple">
-<li><a class="reference" href="license.html">License</a></li>
-<li>Reference <a class="reference" href="manual.html">Manual</a></li>
-<li>LuaForge Project <a class="reference" href="http://luaforge.net/projects/lrexlib/">Page</a></li>
-<li><a class="reference" href="http://luaforge.net/frs/?group_id=63">Download</a></li>
-</ul>
-</div>
-</div>
-<div class="footer">
-<hr class="footer" />
-Generated on: 2007-04-19 07:44 UTC.
-
-</div>
-</body>
-</html>
diff --git a/doc/manual.html b/doc/manual.html
deleted file mode 100755
index 25a2754..0000000
--- a/doc/manual.html
+++ /dev/null
@@ -1,1162 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<meta name="generator" content="Docutils 0.5: http://docutils.sourceforge.net/" />
-<title>Lrexlib 2.2 Reference Manual</title>
-<link rel="stylesheet" href="lrexlib.css" type="text/css" />
-</head>
-<body>
-<div class="document" id="lrexlib-2-2-reference-manual">
-<h1 class="title">Lrexlib 2.2 Reference Manual</h1>
-
-<div class="contents topic">
-<p class="topic-title first"><a id="table-of-contents" name="table-of-contents">Table of Contents</a></p>
-<ul class="simple">
-<li><a class="reference" href="#introduction" id="id1" name="id1">Introduction</a></li>
-<li><a class="reference" href="#notes" id="id2" name="id2">Notes</a></li>
-<li><a class="reference" href="#common-pcre-and-posix-functions-and-methods" id="id3" name="id3">Common (PCRE and POSIX) functions and methods</a><ul>
-<li><a class="reference" href="#match" id="id4" name="id4">match</a></li>
-<li><a class="reference" href="#find" id="id5" name="id5">find</a></li>
-<li><a class="reference" href="#gmatch" id="id6" name="id6">gmatch</a></li>
-<li><a class="reference" href="#gsub" id="id7" name="id7">gsub</a></li>
-<li><a class="reference" href="#split" id="id8" name="id8">split</a></li>
-<li><a class="reference" href="#flags" id="id9" name="id9">flags</a></li>
-<li><a class="reference" href="#new" id="id10" name="id10">new</a></li>
-<li><a class="reference" href="#tfind" id="id11" name="id11">tfind</a></li>
-<li><a class="reference" href="#exec" id="id12" name="id12">exec</a></li>
-</ul>
-</li>
-<li><a class="reference" href="#pcre-only-functions-and-methods" id="id13" name="id13">PCRE-only functions and methods</a><ul>
-<li><a class="reference" href="#dfa-exec" id="id14" name="id14">dfa_exec</a></li>
-<li><a class="reference" href="#maketables" id="id15" name="id15">maketables</a></li>
-<li><a class="reference" href="#settables" id="id16" name="id16">settables</a></li>
-<li><a class="reference" href="#config" id="id17" name="id17">config</a></li>
-<li><a class="reference" href="#version" id="id18" name="id18">version</a></li>
-</ul>
-</li>
-<li><a class="reference" href="#other-functions" id="id19" name="id19">Other functions</a><ul>
-<li><a class="reference" href="#plainfind" id="id20" name="id20">plainfind</a></li>
-</ul>
-</li>
-<li><a class="reference" href="#incompatibilities-with-the-previous-versions" id="id21" name="id21">Incompatibilities with the Previous Versions</a></li>
-</ul>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h2><a class="toc-backref" href="#id1" id="introduction" name="introduction">Introduction</a></h2>
-<p><strong>Lrexlib</strong> provides bindings of the two principal regular expression library
-interfaces (<a class="reference" href="http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap09.html">POSIX</a> and <a class="reference" href="http://www.pcre.org/pcre.txt">PCRE</a>) to <a class="reference" href="http://www.lua.org">Lua</a> 5.1.</p>
-<p><strong>Lrexlib</strong> builds into shared libraries called by default <em>rex_posix.so</em> and
-<em>rex_pcre.so</em>, which can be used with <em>require</em>.</p>
-<p><strong>Lrexlib</strong> is copyright Reuben Thomas 2000-2007 and copyright Shmuel Zeigerman
-2004-2007, and is released under the MIT license.</p>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h2><a class="toc-backref" href="#id2" id="notes" name="notes">Notes</a></h2>
-<ol class="arabic">
-<li><p class="first">Most functions and methods in Lrexlib have mandatory and optional arguments.
-There are no dependencies between arguments in Lrexlib's functions and
-methods. Any optional argument can be supplied as <tt class="docutils literal"><span class="pre">nil</span></tt> (or omitted if it
-is trailing one), the library will then use the default value for that
-argument.</p>
-</li>
-<li><p class="first">This document uses the following syntax for optional arguments: they are
-bracketed separately, and commas are left outside brackets, e.g.:</p>
-<pre class="literal-block">
-MyFunc (arg1, arg2, [arg3], [arg4])
-</pre>
-</li>
-<li><p class="first">Throughout this document, the identifier <em>rex</em> is used in place of either
-<em>rex_posix</em> or <em>rex_pcre</em>, that are the default namespaces for the
-corresponding libraries.</p>
-</li>
-<li><p class="first">All functions receiving a regular expression pattern as an argument will
-generate an error if that pattern is found invalid by the used <a class="reference" href="http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap09.html">POSIX</a> / <a class="reference" href="http://www.pcre.org/pcre.txt">PCRE</a>
-library.</p>
-</li>
-</ol>
-<ol class="arabic" id="cf" start="5">
-<li><p class="first">The default value for <em>compilation flags</em> (<em>cf</em>) that Lrexlib uses when
-the parameter is not supplied or <tt class="docutils literal"><span class="pre">nil</span></tt>, is:</p>
-<blockquote>
-<ul class="simple">
-<li>0 for PCRE</li>
-<li>REG_EXTENDED for POSIX regex library</li>
-</ul>
-</blockquote>
-<p>For PCRE, <em>cf</em> may also be supplied as a string, whose characters stand for
-PCRE compilation flags. Combinations of the following characters (case
-sensitive) are supported:</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="45%" />
-<col width="55%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head"><p class="first last"><strong>Character</strong></p>
-</th>
-<th class="head"><p class="first last"><strong>PCRE flag</strong></p>
-</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td><p class="first last"><strong>i</strong></p>
-</td>
-<td><p class="first last">PCRE_CASELESS</p>
-</td>
-</tr>
-<tr><td><p class="first last"><strong>m</strong></p>
-</td>
-<td><p class="first last">PCRE_MULTILINE</p>
-</td>
-</tr>
-<tr><td><p class="first last"><strong>s</strong></p>
-</td>
-<td><p class="first last">PCRE_DOTALL</p>
-</td>
-</tr>
-<tr><td><p class="first last"><strong>x</strong></p>
-</td>
-<td><p class="first last">PCRE_EXTENDED</p>
-</td>
-</tr>
-<tr><td><p class="first last"><strong>U</strong></p>
-</td>
-<td><p class="first last">PCRE_UNGREEDY</p>
-</td>
-</tr>
-<tr><td><p class="first last"><strong>X</strong></p>
-</td>
-<td><p class="first last">PCRE_EXTRA</p>
-</td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-</li>
-</ol>
-<ol class="arabic" id="ef" start="6">
-<li><p class="first">The default value for <em>execution flags</em> (<em>ef</em>) that Lrexlib uses when
-the parameter is not supplied or <tt class="docutils literal"><span class="pre">nil</span></tt>, is:</p>
-<blockquote>
-<ul class="simple">
-<li>0 for PCRE</li>
-<li>0 for standard POSIX regex library</li>
-<li>REG_STARTEND for those POSIX regex libraries that support it,
-e.g. Spencer's.</li>
-</ul>
-</blockquote>
-</li>
-</ol>
-<ol class="arabic" id="locale" start="7">
-<li><p class="first">Parameter <em>locale</em> (<em>lo</em>) can be either a string (e.g., &quot;French_France.1252&quot;),
-or a userdata obtained from a call to <a class="reference" href="#maketables">maketables</a>. The default value that
-Lrexlib uses when the parameter is not supplied or <tt class="docutils literal"><span class="pre">nil</span></tt>, is:</p>
-<blockquote>
-<ul class="simple">
-<li>the built-in PCRE set of character tables - when Lrexlib is loaded.</li>
-<li>determined by the last call to <a class="reference" href="#settables">settables</a>.</li>
-</ul>
-</blockquote>
-</li>
-</ol>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h2><a class="toc-backref" href="#id3" id="common-pcre-and-posix-functions-and-methods" name="common-pcre-and-posix-functions-and-methods">Common (PCRE and POSIX) functions and methods</a></h2>
-<div class="section">
-<h3><a class="toc-backref" href="#id4" id="match" name="match">match</a></h3>
-<p><tt class="funcdef docutils literal"><span class="pre">rex.match</span> <span class="pre">(subj,</span> <span class="pre">patt,</span> <span class="pre">[init],</span> <span class="pre">[cf],</span> <span class="pre">[ef],</span> <span class="pre">[lo])</span></tt></p>
-<p>The function searches for the first match of the regexp <em>patt</em> in the string
-<em>subj</em>, starting from offset <em>init</em>, subject to flags <em>cf</em> and <em>ef</em>.</p>
-<p>PCRE: A locale <em>lo</em> may be specified.</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="15%" />
-<col width="51%" />
-<col width="13%" />
-<col width="21%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>subj</td>
-<td>subject</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>patt</td>
-<td>regular expression pattern</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>[init]</td>
-<td>start offset in the subject
-(can be negative)</td>
-<td>number</td>
-<td>1</td>
-</tr>
-<tr><td>[cf]</td>
-<td>compilation flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#cf">cf</a></td>
-</tr>
-<tr><td>[ef]</td>
-<td>execution flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#ef">ef</a></td>
-</tr>
-<tr><td>[lo]</td>
-<td>[PCRE] locale</td>
-<td>string
-or
-userdata</td>
-<td><a class="reference" href="#locale">locale</a></td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<dl class="docutils">
-<dt><strong>Returns on success:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li>All substring matches (&quot;captures&quot;), in the order they appear in the
-pattern. <tt class="docutils literal"><span class="pre">false</span></tt> is returned for sub-patterns that did not participate in
-the match. If the pattern specified no captures then the whole matched
-substring is returned.</li>
-</ol>
-</dd>
-<dt><strong>Returns on failure:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li><tt class="docutils literal"><span class="pre">nil</span></tt></li>
-</ol>
-</dd>
-</dl>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h3><a class="toc-backref" href="#id5" id="find" name="find">find</a></h3>
-<p><tt class="funcdef docutils literal"><span class="pre">rex.find</span> <span class="pre">(subj,</span> <span class="pre">patt,</span> <span class="pre">[init],</span> <span class="pre">[cf],</span> <span class="pre">[ef],</span> <span class="pre">[lo])</span></tt></p>
-<p>The function searches for the first match of the regexp <em>patt</em> in the string
-<em>subj</em>, starting from offset <em>init</em>, subject to flags <em>cf</em> and <em>ef</em>.</p>
-<p>PCRE: A locale <em>lo</em> may be specified.</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="15%" />
-<col width="51%" />
-<col width="13%" />
-<col width="21%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>subj</td>
-<td>subject</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>patt</td>
-<td>regular expression pattern</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>[init]</td>
-<td>start offset in the subject
-(can be negative)</td>
-<td>number</td>
-<td>1</td>
-</tr>
-<tr><td>[cf]</td>
-<td>compilation flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#cf">cf</a></td>
-</tr>
-<tr><td>[ef]</td>
-<td>execution flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#ef">ef</a></td>
-</tr>
-<tr><td>[lo]</td>
-<td>[PCRE] locale</td>
-<td>string
-or
-userdata</td>
-<td><a class="reference" href="#locale">locale</a></td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<dl class="docutils">
-<dt><strong>Returns on success:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li>The start point of the match (a number).</li>
-<li>The end point of the match (a number).</li>
-<li>All substring matches (&quot;captures&quot;), in the order they appear in the
-pattern. <tt class="docutils literal"><span class="pre">false</span></tt> is returned for sub-patterns that did not participate in
-the match.</li>
-</ol>
-</dd>
-<dt><strong>Returns on failure:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li><tt class="docutils literal"><span class="pre">nil</span></tt></li>
-</ol>
-</dd>
-</dl>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h3><a class="toc-backref" href="#id6" id="gmatch" name="gmatch">gmatch</a></h3>
-<p><tt class="funcdef docutils literal"><span class="pre">rex.gmatch</span> <span class="pre">(subj,</span> <span class="pre">patt,</span> <span class="pre">[cf],</span> <span class="pre">[ef],</span> <span class="pre">[lo])</span></tt></p>
-<p>The function is intended for use in the <em>generic for</em> Lua construct.
-It returns an iterator for repeated matching of the pattern <em>patt</em> in
-the string <em>subj</em>, subject to flags <em>cf</em> and <em>ef</em>.</p>
-<p>PCRE: A locale <em>lo</em> may be specified.</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="15%" />
-<col width="51%" />
-<col width="13%" />
-<col width="21%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>subj</td>
-<td>subject</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>patt</td>
-<td>regular expression pattern</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>[cf]</td>
-<td>compilation flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#cf">cf</a></td>
-</tr>
-<tr><td>[ef]</td>
-<td>execution flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#ef">ef</a></td>
-</tr>
-<tr><td>[lo]</td>
-<td>[PCRE] locale</td>
-<td>string
-or
-userdata</td>
-<td><a class="reference" href="#locale">locale</a></td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<p>The iterator function is called by Lua. On every iteration (that is, on every
-match), it returns all captures in the order they appear in the pattern (or the
-entire match if the pattern specified no captures). The iteration will continue
-till the subject fails to match.</p>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h3><a class="toc-backref" href="#id7" id="gsub" name="gsub">gsub</a></h3>
-<p><tt class="funcdef docutils literal"><span class="pre">rex.gsub</span> <span class="pre">(subj,</span> <span class="pre">patt,</span> <span class="pre">repl,</span> <span class="pre">[n],</span> <span class="pre">[cf],</span> <span class="pre">[ef],</span> <span class="pre">[lo])</span></tt></p>
-<p>This function searches for all matches of the pattern <em>patt</em> in the string
-<em>subj</em> and replaces them according to the parameters <em>repl</em> and <em>n</em> (see details
-below).</p>
-<p>PCRE: A locale <em>lo</em> may be specified.</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="11%" />
-<col width="43%" />
-<col width="30%" />
-<col width="16%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>subj</td>
-<td>subject</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>patt</td>
-<td>regular expression pattern</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>repl</td>
-<td>substitution source</td>
-<td>string, function or table</td>
-<td>n/a</td>
-</tr>
-<tr><td>[n]</td>
-<td>maximum number of matches to search
-for, or control function, or nil</td>
-<td>number or function</td>
-<td><tt class="docutils literal"><span class="pre">nil</span></tt></td>
-</tr>
-<tr><td>[cf]</td>
-<td>compilation flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#cf">cf</a></td>
-</tr>
-<tr><td>[ef]</td>
-<td>execution flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#ef">ef</a></td>
-</tr>
-<tr><td>[lo]</td>
-<td>[PCRE] locale</td>
-<td>string or userdata</td>
-<td><a class="reference" href="#locale">locale</a></td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<dl class="docutils">
-<dt><strong>Returns:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li>The subject string with the substitutions made.</li>
-<li>Number of matches found.</li>
-<li>Number of substitutions made.</li>
-</ol>
-</dd>
-<dt><strong>Details:</strong></dt>
-<dd><p class="first">The parameter <em>repl</em> can be either a string, a function or a table.
-On each match made, it is converted into a value <em>repl_out</em> that may be used
-for the replacement.</p>
-<p><em>repl_out</em> is generated differently depending on the type of <em>repl</em>:</p>
-<ol class="arabic simple">
-<li>If <em>repl</em> is a <em>string</em> then it is treated as a template for substitution,
-where the %X occurences in <em>repl</em> are handled in a special way, depending
-on the value of the character X:</li>
-</ol>
-<blockquote>
-<ul class="simple">
-<li>if X represents a digit, then each %X occurence is substituted by the
-value of the X-th submatch (capture), with the following cases handled
-specially:<ul>
-<li>each %0 is substituted by the entire match</li>
-<li>if the pattern contains no captures, then each %1 is substituted by the
-entire match</li>
-<li>any other %X where X is greater than the number of captures in the
-pattern will generate an error (&quot;invalid capture index&quot;)</li>
-<li>if the pattern does contain a capture with number X but that capture
-didn't participate in the match, then %X is substituted by an empty
-string</li>
-</ul>
-</li>
-<li>if X is any non-digit character then %X is substituted by X</li>
-</ul>
-<p>All parts of <em>repl</em> other than %X are copied to <em>repl_out</em> verbatim.</p>
-</blockquote>
-<ol class="arabic simple" start="2">
-<li>If <em>repl</em> is a <em>function</em> then it is called on each match with the
-submatches passed as parameters (if there are no submatches then the entire
-match is passed as the only parameter). <em>repl_out</em> is the return value of
-the <em>repl</em> call, and is interpreted as follows:</li>
-</ol>
-<blockquote>
-<ul class="simple">
-<li>if it is a string or a number (coerced to a string), then the replacement
-value is that string;</li>
-<li>if it is a <tt class="docutils literal"><span class="pre">nil</span></tt> or a <tt class="docutils literal"><span class="pre">false</span></tt>, then no replacement is to be done;</li>
-</ul>
-</blockquote>
-<ol class="arabic simple" start="3">
-<li>If <em>repl</em> is a table then <em>repl_out</em> is <em>repl</em> [m1], where m1 is the first
-submatch (or the entire match if there are no submatches), following the
-same rules as for the return value of <em>repl</em> call, described in the above
-paragraph.</li>
-</ol>
-<p>Note: Under some circumstances, the value of <em>repl_out</em> may be ignored; see
-<a class="reference" href="#below">below</a>.</p>
-<p>gsub behaves differently depending on the type of <em>n</em>:</p>
-<ol class="last arabic simple">
-<li>If <em>n</em> is a <em>number</em> then it is treated as the maximum number of matches
-to search for (an omitted or <tt class="docutils literal"><span class="pre">nil</span></tt> value means an unlimited number of
-matches). On each match, the replacement value is the <em>repl_out</em> string
-(see above).</li>
-</ol>
-</dd>
-</dl>
-<blockquote id="below">
-<ol class="arabic" start="2">
-<li><p class="first">If <em>n</em> is a function, then it is called on each match, after <em>repl_out</em> is
-produced (so if <em>repl</em> is a function, it will be called prior to the <em>n</em>
-call).</p>
-<p><em>n</em> receives 3 arguments and returns 2 values. Its arguments are:</p>
-<blockquote>
-<ol class="arabic simple">
-<li>The start offset of the match (a number)</li>
-<li>The end offset of the match (a number)</li>
-<li><em>repl_out</em></li>
-</ol>
-</blockquote>
-<p>The type of its first return controls the replacement produced by gsub for
-the current match:</p>
-<blockquote>
-<ul class="simple">
-<li><tt class="docutils literal"><span class="pre">true</span></tt> -- replace/don't replace, according to <em>repl_out</em>;</li>
-<li><tt class="docutils literal"><span class="pre">nil</span></tt>/<tt class="docutils literal"><span class="pre">false</span></tt> -- don't replace;</li>
-<li>a string (or a number coerced to a string) -- replace by that string;</li>
-</ul>
-</blockquote>
-<p>The type of its second return controls gsub behavior after the current
-match is handled:</p>
-<blockquote>
-<ul class="simple">
-<li><tt class="docutils literal"><span class="pre">nil</span></tt>/<tt class="docutils literal"><span class="pre">false</span></tt> -- no changes: <em>n</em> will be called on the next match;</li>
-<li><tt class="docutils literal"><span class="pre">true</span></tt> -- search for an unlimited number of matches; <em>n</em> will not be
-called anymore;</li>
-<li>a number -- maximum number of matches to search for, beginning from the
-next match; <em>n</em> will not be called anymore;</li>
-</ul>
-</blockquote>
-</li>
-</ol>
-</blockquote>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h3><a class="toc-backref" href="#id8" id="split" name="split">split</a></h3>
-<p><tt class="funcdef docutils literal"><span class="pre">rex.split</span> <span class="pre">(subj,</span> <span class="pre">sep,</span> <span class="pre">[cf],</span> <span class="pre">[ef],</span> <span class="pre">[lo])</span></tt></p>
-<p>The function is intended for use in the <em>generic for</em> Lua construct.
-It is used for splitting a subject string <em>subj</em> into parts (<em>sections</em>).
-The <em>sep</em> parameter is a regular expression pattern representing
-<strong>separators</strong> between the sections.</p>
-<p>The function returns an iterator for repeated matching of the pattern <em>sep</em> in
-the string <em>subj</em>, subject to flags <em>cf</em> and <em>ef</em>.</p>
-<p>PCRE: A locale <em>lo</em> may be specified.</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="15%" />
-<col width="51%" />
-<col width="13%" />
-<col width="21%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>subj</td>
-<td>subject</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>sep</td>
-<td>separator (regular expression
-pattern)</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>[cf]</td>
-<td>compilation flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#cf">cf</a></td>
-</tr>
-<tr><td>[ef]</td>
-<td>execution flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#ef">ef</a></td>
-</tr>
-<tr><td>[lo]</td>
-<td>[PCRE] locale</td>
-<td>string
-or
-userdata</td>
-<td><a class="reference" href="#locale">locale</a></td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<p><strong>On every iteration pass, the iterator returns:</strong></p>
-<blockquote>
-<ol class="arabic simple">
-<li>A subject section (can be an empty string), followed by</li>
-<li>All captures in the order they appear in the <em>sep</em> pattern (or the entire
-match if the <em>sep</em> pattern specified no captures). If there is no match
-(this can occur only in the last iteration), then nothing is returned after
-the subject section.</li>
-</ol>
-</blockquote>
-<p>The iteration will continue till the end of the subject. Unlike <a class="reference" href="#gmatch">gmatch</a>, there
-will always be at least one iteration pass, even if there's no matches in the
-subject.</p>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h3><a class="toc-backref" href="#id9" id="flags" name="flags">flags</a></h3>
-<p><tt class="funcdef docutils literal"><span class="pre">rex.flags</span> <span class="pre">([tb])</span></tt></p>
-<p>This function returns a table containing numeric values of the constants defined
-by the used regex library (either PCRE or POSIX). Those constants are keyed by
-their names (strings). If the table argument <em>tb</em> is supplied then it is used as
-the output table, else a new table is created.</p>
-<p>The constants contained in the returned table can then be used in most functions
-and methods where <em>compilation flags</em> or <em>execution flags</em> can be specified.
-They can also be used for comparing with return codes of some functions and
-methods for determining the reason of failure. For details, see <a class="reference" href="http://www.pcre.org/pcre.txt">PCRE</a> and <a class="reference" href="http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap09.html">POSIX</a>
-documentation.</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="15%" />
-<col width="52%" />
-<col width="13%" />
-<col width="21%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>[tb]</td>
-<td>a table for placing results into</td>
-<td>table</td>
-<td><tt class="docutils literal"><span class="pre">nil</span></tt></td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<dl class="docutils">
-<dt><strong>Returns:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li>A table filled with the results.</li>
-</ol>
-</dd>
-</dl>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h3><a class="toc-backref" href="#id10" id="new" name="new">new</a></h3>
-<p><tt class="funcdef docutils literal"><span class="pre">rex.new</span> <span class="pre">(patt,</span> <span class="pre">[cf],</span> <span class="pre">[lo])</span></tt></p>
-<p>The functions compiles regular expression <em>patt</em> into a regular expression
-object whose internal representation is correspondent to the library used (PCRE
-or POSIX regex). The returned result then can be used by the methods <a class="reference" href="#tfind">tfind</a>,
-<a class="reference" href="#exec">exec</a> and <a class="reference" href="#dfa-exec">dfa_exec</a>. Regular expression objects are automatically garbage
-collected.</p>
-<p>PCRE: A locale <em>lo</em> may be specified.</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="15%" />
-<col width="51%" />
-<col width="13%" />
-<col width="21%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>patt</td>
-<td>regular expression pattern</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>[cf]</td>
-<td>compilation flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#cf">cf</a></td>
-</tr>
-<tr><td>[lo]</td>
-<td>[PCRE] locale</td>
-<td>string
-or
-userdata</td>
-<td><a class="reference" href="#locale">locale</a></td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<dl class="docutils">
-<dt><strong>Returns:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li>Compiled regular expression (a userdata).</li>
-</ol>
-</dd>
-</dl>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h3><a class="toc-backref" href="#id11" id="tfind" name="tfind">tfind</a></h3>
-<p><tt class="funcdef docutils literal"><span class="pre">r:tfind</span> <span class="pre">(subj,</span> <span class="pre">[init],</span> <span class="pre">[ef])</span></tt></p>
-<p>The method searches for the first match of the compiled regexp <em>r</em> in the
-string <em>subj</em>, starting from offset <em>init</em>, subject to execution flags <em>ef</em>.</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="14%" />
-<col width="54%" />
-<col width="12%" />
-<col width="20%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>r</td>
-<td>regex object produced by <a class="reference" href="#new">new</a></td>
-<td>userdata</td>
-<td>n/a</td>
-</tr>
-<tr><td>subj</td>
-<td>subject</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>[init]</td>
-<td>start offset in the subject
-(can be negative)</td>
-<td>number</td>
-<td>1</td>
-</tr>
-<tr><td>[ef]</td>
-<td>execution flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#ef">ef</a></td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<dl class="docutils">
-<dt><strong>Returns on success:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li>The start point of the match (a number).</li>
-<li>The end point of the match (a number).</li>
-<li>Substring matches (&quot;captures&quot; in Lua terminology) are returned as a third
-result, in a table. This table contains <tt class="docutils literal"><span class="pre">false</span></tt> in the positions where the
-corresponding sub-pattern did not participate in the match.<ol class="arabic">
-<li>PCRE: if <em>named subpatterns</em> are used then the table also contains
-substring matches keyed by their correspondent subpattern names
-(strings).</li>
-</ol>
-</li>
-</ol>
-</dd>
-<dt><strong>Returns on failure:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li><tt class="docutils literal"><span class="pre">nil</span></tt></li>
-</ol>
-</dd>
-<dt><strong>Notes:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li>If <em>named subpatterns</em> (see <a class="reference" href="http://www.pcre.org/pcre.txt">PCRE</a> docs) are used then the returned table
-also contains substring matches keyed by their correspondent subpattern
-names (strings).</li>
-</ol>
-</dd>
-</dl>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h3><a class="toc-backref" href="#id12" id="exec" name="exec">exec</a></h3>
-<p><tt class="funcdef docutils literal"><span class="pre">r:exec</span> <span class="pre">(subj,</span> <span class="pre">[init],</span> <span class="pre">[ef])</span></tt></p>
-<p>The method searches for the first match of the compiled regexp <em>r</em> in the
-string <em>subj</em>, starting from offset <em>init</em>, subject to execution flags <em>ef</em>.</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="14%" />
-<col width="54%" />
-<col width="12%" />
-<col width="20%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>r</td>
-<td>regex object produced by <a class="reference" href="#new">new</a></td>
-<td>userdata</td>
-<td>n/a</td>
-</tr>
-<tr><td>subj</td>
-<td>subject</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>[init]</td>
-<td>start offset in the subject
-(can be negative)</td>
-<td>number</td>
-<td>1</td>
-</tr>
-<tr><td>[ef]</td>
-<td>execution flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#ef">ef</a></td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<dl class="docutils">
-<dt><strong>Returns on success:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li>The start point of the first match (a number).</li>
-<li>The end point of the first match (a number).</li>
-<li>The offsets of substring matches (&quot;captures&quot; in Lua terminology) are
-returned as a third result, in a table. This table contains <tt class="docutils literal"><span class="pre">false</span></tt> in the
-positions where the corresponding sub-pattern did not participate in the
-match.<ol class="arabic">
-<li>PCRE: if <em>named subpatterns</em> are used then the table also contains
-substring matches keyed by their correspondent subpattern names
-(strings).</li>
-</ol>
-</li>
-</ol>
-</dd>
-<dt><strong>Returns on failure:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li><tt class="docutils literal"><span class="pre">nil</span></tt></li>
-</ol>
-</dd>
-<dt><strong>Example:</strong></dt>
-<dd>If the whole match is at offsets 10,20 and substring matches are at offsets
-12,14 and 16,19 then the function returns the following: 10, 20,
-{ 12,14,16,19 }.</dd>
-</dl>
-</div>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h2><a class="toc-backref" href="#id13" id="pcre-only-functions-and-methods" name="pcre-only-functions-and-methods">PCRE-only functions and methods</a></h2>
-<div class="section">
-<h3><a class="toc-backref" href="#id14" id="dfa-exec" name="dfa-exec">dfa_exec</a></h3>
-<p>[PCRE 6.0 and later. See <em>pcre_dfa_exec</em> in the <a class="reference" href="http://www.pcre.org/pcre.txt">PCRE</a> docs.]</p>
-<p><tt class="funcdef docutils literal"><span class="pre">r:dfa_exec</span> <span class="pre">(subj,</span> <span class="pre">[init],</span> <span class="pre">[ef],</span> <span class="pre">[ovecsize],</span> <span class="pre">[wscount])</span></tt></p>
-<p>The method matches a compiled regular expression <em>r</em> against a given subject
-string <em>subj</em>, using a DFA matching algorithm.</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="15%" />
-<col width="54%" />
-<col width="12%" />
-<col width="19%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>r</td>
-<td>regex object produced by <a class="reference" href="#new">new</a></td>
-<td>userdata</td>
-<td>n/a</td>
-</tr>
-<tr><td>subj</td>
-<td>subject</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>[init]</td>
-<td>start offset in the subject
-(can be negative)</td>
-<td>number</td>
-<td>1</td>
-</tr>
-<tr><td>[ef]</td>
-<td>execution flags (bitwise OR)</td>
-<td>number</td>
-<td><a class="reference" href="#ef">ef</a></td>
-</tr>
-<tr><td>[ovecsize]</td>
-<td>size of the array for result offsets</td>
-<td>number</td>
-<td>100</td>
-</tr>
-<tr><td>[wscount]</td>
-<td>number of elements in the working
-space array</td>
-<td>number</td>
-<td>50</td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<dl class="docutils">
-<dt><strong>Returns on success (either full or partial match):</strong></dt>
-<dd><ol class="first last arabic simple">
-<li>The start point of the matches found (a number).</li>
-<li>A table containing the end points of the matches found, the longer matches
-first.</li>
-<li>The return value of the underlying <em>pcre_dfa_exec</em> call (a number).</li>
-</ol>
-</dd>
-<dt><strong>Returns on failure (no match):</strong></dt>
-<dd><ol class="first last arabic simple">
-<li><tt class="docutils literal"><span class="pre">nil</span></tt></li>
-</ol>
-</dd>
-<dt><strong>Example:</strong></dt>
-<dd>If there are 3 matches found starting at offset 10 and ending at offsets 15, 20
-and 25 then the function returns the following: 10, { 25,20,15 }, 3.</dd>
-</dl>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h3><a class="toc-backref" href="#id15" id="maketables" name="maketables">maketables</a></h3>
-<p>[PCRE only. See <em>pcre_maketables</em> in the <a class="reference" href="http://www.pcre.org/pcre.txt">PCRE</a> docs.]</p>
-<p><tt class="funcdef docutils literal"><span class="pre">rex.maketables</span> <span class="pre">()</span></tt></p>
-<p>Creates a table set corresponding to the current active locale and returns it as
-a userdata. The returned value can be passed to the function <a class="reference" href="#settables">settables</a> and to
-any Lrexlib function accepting the <em>locale</em> parameter.</p>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h3><a class="toc-backref" href="#id16" id="settables" name="settables">settables</a></h3>
-<p>[PCRE only]</p>
-<p><tt class="funcdef docutils literal"><span class="pre">rex.settables</span> <span class="pre">([tables])</span></tt></p>
-<p>This function replaces the default set of character tables, by the one supplied
-in the parameter <em>tables</em>.</p>
-<p>The <em>tables</em> parameter should be either a userdata, obtained from a call to
-<a class="reference" href="#maketables">maketables</a>, or <tt class="docutils literal"><span class="pre">nil</span></tt>. In the latter case, the built-in PCRE set of tables
-becomes the default.</p>
-<p>Lrexlib maintains one &quot;default&quot; set of character tables, in addition to the set
-built-in into PCRE. When a Lrexlib function accepting the <em>locale</em> argument is
-called with that argument omitted, then the default set of character tables is
-used.</p>
-<p>The initial default set of tables is the built-in PCRE set.</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="15%" />
-<col width="52%" />
-<col width="13%" />
-<col width="21%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>[tables]</td>
-<td>See the above description.</td>
-<td>userdata</td>
-<td><tt class="docutils literal"><span class="pre">nil</span></tt></td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<dl class="docutils">
-<dt><strong>Returns:</strong></dt>
-<dd>The old value of the default set (<tt class="docutils literal"><span class="pre">nil</span></tt> for the built-in PCRE set).</dd>
-</dl>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h3><a class="toc-backref" href="#id17" id="config" name="config">config</a></h3>
-<p>[PCRE 4.0 and later. See <em>pcre_config</em> in the <a class="reference" href="http://www.pcre.org/pcre.txt">PCRE</a> docs.]</p>
-<p><tt class="funcdef docutils literal"><span class="pre">rex.config</span> <span class="pre">([tb])</span></tt></p>
-<p>This function returns a table containing the values of the configuration
-parameters used at PCRE library build-time. Those parameters (numbers) are
-keyed by their names (strings). If the table argument <em>tb</em> is supplied then it
-is used as the output table, else a new table is created.</p>
-<blockquote>
-<table border="1" class="docutils">
-<colgroup>
-<col width="15%" />
-<col width="52%" />
-<col width="13%" />
-<col width="21%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>[tb]</td>
-<td>a table for placing results into</td>
-<td>table</td>
-<td><tt class="docutils literal"><span class="pre">nil</span></tt></td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<dl class="docutils">
-<dt><strong>Returns:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li>A table filled with the results.</li>
-</ol>
-</dd>
-</dl>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h3><a class="toc-backref" href="#id18" id="version" name="version">version</a></h3>
-<p>[PCRE only. See <em>pcre_version</em> in the <a class="reference" href="http://www.pcre.org/pcre.txt">PCRE</a> docs.]</p>
-<p><tt class="funcdef docutils literal"><span class="pre">rex.version</span> <span class="pre">()</span></tt></p>
-<p>This function returns a string containing the version of the used PCRE library
-and its release date.</p>
-</div>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h2><a class="toc-backref" href="#id19" id="other-functions" name="other-functions">Other functions</a></h2>
-<div class="section">
-<h3><a class="toc-backref" href="#id20" id="plainfind" name="plainfind">plainfind</a></h3>
-<p><tt class="funcdef docutils literal"><span class="pre">rex.plainfind</span> <span class="pre">(subj,</span> <span class="pre">patt,</span> <span class="pre">[init],</span> <span class="pre">[ci])</span></tt></p>
-<p>The function searches for the first match of the string <em>patt</em> in the subject
-<em>subj</em>, starting from offset <em>init</em>.</p>
-<blockquote>
-<ul class="simple">
-<li>The string <em>patt</em> is not regular expression, all its characters stand for
-themselves.</li>
-<li>Both strings <em>subj</em> and <em>patt</em> can have embedded zeros.</li>
-<li>The flag <em>ci</em> specifies case-insensitive search (current locale is used).</li>
-<li>This function uses neither PCRE nor POSIX regex library.</li>
-</ul>
-<table border="1" class="docutils">
-<colgroup>
-<col width="16%" />
-<col width="47%" />
-<col width="14%" />
-<col width="23%" />
-</colgroup>
-<thead valign="bottom">
-<tr><th class="head">Parameter</th>
-<th class="head">Description</th>
-<th class="head">Type</th>
-<th class="head">Default Value</th>
-</tr>
-</thead>
-<tbody valign="top">
-<tr><td>subj</td>
-<td>subject</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>patt</td>
-<td>text to find</td>
-<td>string</td>
-<td>n/a</td>
-</tr>
-<tr><td>[init]</td>
-<td>start offset in the subject
-(can be negative)</td>
-<td>number</td>
-<td>1</td>
-</tr>
-<tr><td>[ci]</td>
-<td>case insensitive search</td>
-<td>boolean</td>
-<td><tt class="docutils literal"><span class="pre">false</span></tt></td>
-</tr>
-</tbody>
-</table>
-</blockquote>
-<dl class="docutils">
-<dt><strong>Returns on success:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li>The start point of the match (a number).</li>
-<li>The end point of the match (a number).</li>
-</ol>
-</dd>
-<dt><strong>Returns on failure:</strong></dt>
-<dd><ol class="first last arabic simple">
-<li><tt class="docutils literal"><span class="pre">nil</span></tt></li>
-</ol>
-</dd>
-</dl>
-</div>
-</div>
-<hr class="docutils" />
-<div class="section">
-<h2><a class="toc-backref" href="#id21" id="incompatibilities-with-the-previous-versions" name="incompatibilities-with-the-previous-versions">Incompatibilities with the Previous Versions</a></h2>
-<p><strong>Incompatibilities between the versions 2.0 and 1.19:</strong></p>
-<blockquote>
-<ol class="arabic simple">
-<li>Lua 5.1 is required</li>
-<li>Functions <tt class="docutils literal"><span class="pre">newPCRE</span></tt> and <tt class="docutils literal"><span class="pre">newPOSIX</span></tt> renamed to <a class="reference" href="#new">new</a></li>
-<li>Functions <tt class="docutils literal"><span class="pre">flagsPCRE</span></tt> and <tt class="docutils literal"><span class="pre">flagsPOSIX</span></tt> renamed to <a class="reference" href="#flags">flags</a></li>
-<li>Function <tt class="docutils literal"><span class="pre">versionPCRE</span></tt> renamed to <a class="reference" href="#version">version</a></li>
-<li>Method <tt class="docutils literal"><span class="pre">match</span></tt> renamed to <a class="reference" href="#tfind">tfind</a></li>
-<li>Method <tt class="docutils literal"><span class="pre">gmatch</span></tt> removed (similar functionality is provided by function
-<a class="reference" href="#gmatch">gmatch</a>)</li>
-<li>Methods <a class="reference" href="#tfind">tfind</a> and <a class="reference" href="#exec">exec</a>: 2 values are returned on failure</li>
-<li>(PCRE) <a class="reference" href="#exec">exec</a>: the returned table may additionally contain <em>named
-subpatterns</em></li>
-</ol>
-</blockquote>
-<p><strong>Incompatibilities between the versions 2.1 and 2.0:</strong></p>
-<blockquote>
-<ol class="arabic simple">
-<li><a class="reference" href="#match">match</a>, <a class="reference" href="#find">find</a>, <a class="reference" href="#tfind">tfind</a>, <a class="reference" href="#exec">exec</a>, <a class="reference" href="#dfa-exec">dfa_exec</a>: only one value (a <tt class="docutils literal"><span class="pre">nil</span></tt>) is
-returned when the subject does not match the pattern. Any other failure
-generates an error.</li>
-</ol>
-</blockquote>
-<p><strong>Incompatibilities between the versions 2.2 and 2.1:</strong></p>
-<blockquote>
-<ol class="arabic simple">
-<li><a class="reference" href="#gsub">gsub</a>: a special &quot;break&quot; return of <em>repl</em> function is deprecated.</li>
-<li>(PCRE) <a class="reference" href="#gsub">gsub</a>, <a class="reference" href="#gmatch">gmatch</a>: after finding an empty match at the current
-position, the functions try to find a non-empty match anchored to the same
-position.</li>
-</ol>
-</blockquote>
-</div>
-</div>
-<div class="footer">
-<hr class="footer" />
-Generated on: 2007-05-02 10:06 UTC.
-
-</div>
-</body>
-</html>