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<head>
<title>PCRE specification</title>
</head>
<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
<h1>Perl-compatible Regular Expressions (PCRE)</h1>
<p>
The HTML documentation for PCRE consists of a number of pages that are listed
below in alphabetical order. If you are new to PCRE, please read the first one
first.
</p>
<table>
<tr><td><a href="pcre.html">pcre</a></td>
<td> Introductory page</td></tr>
<tr><td><a href="pcre-config.html">pcre-config</a></td>
<td> Information about the installation configuration</td></tr>
<tr><td><a href="pcre16.html">pcre16</a></td>
<td> Discussion of the 16-bit PCRE library</td></tr>
<tr><td><a href="pcre32.html">pcre32</a></td>
<td> Discussion of the 32-bit PCRE library</td></tr>
<tr><td><a href="pcreapi.html">pcreapi</a></td>
<td> PCRE's native API</td></tr>
<tr><td><a href="pcrebuild.html">pcrebuild</a></td>
<td> Building PCRE</td></tr>
<tr><td><a href="pcrecallout.html">pcrecallout</a></td>
<td> The <i>callout</i> facility</td></tr>
<tr><td><a href="pcrecompat.html">pcrecompat</a></td>
<td> Compability with Perl</td></tr>
<tr><td><a href="pcrecpp.html">pcrecpp</a></td>
<td> The C++ wrapper for the PCRE library</td></tr>
<tr><td><a href="pcredemo.html">pcredemo</a></td>
<td> A demonstration C program that uses the PCRE library</td></tr>
<tr><td><a href="pcregrep.html">pcregrep</a></td>
<td> The <b>pcregrep</b> command</td></tr>
<tr><td><a href="pcrejit.html">pcrejit</a></td>
<td> Discussion of the just-in-time optimization support</td></tr>
<tr><td><a href="pcrelimits.html">pcrelimits</a></td>
<td> Details of size and other limits</td></tr>
<tr><td><a href="pcrematching.html">pcrematching</a></td>
<td> Discussion of the two matching algorithms</td></tr>
<tr><td><a href="pcrepartial.html">pcrepartial</a></td>
<td> Using PCRE for partial matching</td></tr>
<tr><td><a href="pcrepattern.html">pcrepattern</a></td>
<td> Specification of the regular expressions supported by PCRE</td></tr>
<tr><td><a href="pcreperform.html">pcreperform</a></td>
<td> Some comments on performance</td></tr>
<tr><td><a href="pcreposix.html">pcreposix</a></td>
<td> The POSIX API to the PCRE 8-bit library</td></tr>
<tr><td><a href="pcreprecompile.html">pcreprecompile</a></td>
<td> How to save and re-use compiled patterns</td></tr>
<tr><td><a href="pcresample.html">pcresample</a></td>
<td> Discussion of the pcredemo program</td></tr>
<tr><td><a href="pcrestack.html">pcrestack</a></td>
<td> Discussion of PCRE's stack usage</td></tr>
<tr><td><a href="pcresyntax.html">pcresyntax</a></td>
<td> Syntax quick-reference summary</td></tr>
<tr><td><a href="pcretest.html">pcretest</a></td>
<td> The <b>pcretest</b> command for testing PCRE</td></tr>
<tr><td><a href="pcreunicode.html">pcreunicode</a></td>
<td> Discussion of Unicode and UTF-8/UTF-16/UTF-32 support</td></tr>
</table>
<p>
There are also individual pages that summarize the interface for each function
in the library. There is a single page for each triple of 8-bit/16-bit/32-bit
functions.
</p>
<table>
<tr><td><a href="pcre_assign_jit_stack.html">pcre_assign_jit_stack</a></td>
<td> Assign stack for JIT matching</td></tr>
<tr><td><a href="pcre_compile.html">pcre_compile</a></td>
<td> Compile a regular expression</td></tr>
<tr><td><a href="pcre_compile2.html">pcre_compile2</a></td>
<td> Compile a regular expression (alternate interface)</td></tr>
<tr><td><a href="pcre_config.html">pcre_config</a></td>
<td> Show build-time configuration options</td></tr>
<tr><td><a href="pcre_copy_named_substring.html">pcre_copy_named_substring</a></td>
<td> Extract named substring into given buffer</td></tr>
<tr><td><a href="pcre_copy_substring.html">pcre_copy_substring</a></td>
<td> Extract numbered substring into given buffer</td></tr>
<tr><td><a href="pcre_dfa_exec.html">pcre_dfa_exec</a></td>
<td> Match a compiled pattern to a subject string
(DFA algorithm; <i>not</i> Perl compatible)</td></tr>
<tr><td><a href="pcre_exec.html">pcre_exec</a></td>
<td> Match a compiled pattern to a subject string
(Perl compatible)</td></tr>
<tr><td><a href="pcre_free_study.html">pcre_free_study</a></td>
<td> Free study data</td></tr>
<tr><td><a href="pcre_free_substring.html">pcre_free_substring</a></td>
<td> Free extracted substring</td></tr>
<tr><td><a href="pcre_free_substring_list.html">pcre_free_substring_list</a></td>
<td> Free list of extracted substrings</td></tr>
<tr><td><a href="pcre_fullinfo.html">pcre_fullinfo</a></td>
<td> Extract information about a pattern</td></tr>
<tr><td><a href="pcre_get_named_substring.html">pcre_get_named_substring</a></td>
<td> Extract named substring into new memory</td></tr>
<tr><td><a href="pcre_get_stringnumber.html">pcre_get_stringnumber</a></td>
<td> Convert captured string name to number</td></tr>
<tr><td><a href="pcre_get_stringtable_entries.html">pcre_get_stringtable_entries</a></td>
<td> Find table entries for given string name</td></tr>
<tr><td><a href="pcre_get_substring.html">pcre_get_substring</a></td>
<td> Extract numbered substring into new memory</td></tr>
<tr><td><a href="pcre_get_substring_list.html">pcre_get_substring_list</a></td>
<td> Extract all substrings into new memory</td></tr>
<tr><td><a href="pcre_jit_exec.html">pcre_jit_exec</a></td>
<td> Fast path interface to JIT matching</td></tr>
<tr><td><a href="pcre_jit_stack_alloc.html">pcre_jit_stack_alloc</a></td>
<td> Create a stack for JIT matching</td></tr>
<tr><td><a href="pcre_jit_stack_free.html">pcre_jit_stack_free</a></td>
<td> Free a JIT matching stack</td></tr>
<tr><td><a href="pcre_maketables.html">pcre_maketables</a></td>
<td> Build character tables in current locale</td></tr>
<tr><td><a href="pcre_pattern_to_host_byte_order.html">pcre_pattern_to_host_byte_order</a></td>
<td> Convert compiled pattern to host byte order if necessary</td></tr>
<tr><td><a href="pcre_refcount.html">pcre_refcount</a></td>
<td> Maintain reference count in compiled pattern</td></tr>
<tr><td><a href="pcre_study.html">pcre_study</a></td>
<td> Study a compiled pattern</td></tr>
<tr><td><a href="pcre_utf16_to_host_byte_order.html">pcre_utf16_to_host_byte_order</a></td>
<td> Convert UTF-16 string to host byte order if necessary</td></tr>
<tr><td><a href="pcre_utf32_to_host_byte_order.html">pcre_utf32_to_host_byte_order</a></td>
<td> Convert UTF-32 string to host byte order if necessary</td></tr>
<tr><td><a href="pcre_version.html">pcre_version</a></td>
<td> Return PCRE version and release date</td></tr>
</table>
</html>