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    1 <html>
    2 <!-- This is a manually maintained file that is the root of the HTML version of
    3      the PCRE documentation. When the HTML documents are built from the man
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    5      copied into doc/html/index.html, and the remaining files therein are
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    7 -->
    8 <head>
    9 <title>PCRE specification</title>
   10 </head>
   11 <body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
   12 <h1>Perl-compatible Regular Expressions (PCRE)</h1>
   13 <p>
   14 The HTML documentation for PCRE consists of a number of pages that are listed
   15 below in alphabetical order. If you are new to PCRE, please read the first one
   16 first.
   17 </p>
   18 
   19 <table>
   20 <tr><td><a href="pcre.html">pcre</a></td>
   21     <td>&nbsp;&nbsp;Introductory page</td></tr>
   22 
   23 <tr><td><a href="pcre-config.html">pcre-config</a></td>
   24     <td>&nbsp;&nbsp;Information about the installation configuration</td></tr>
   25 
   26 <tr><td><a href="pcre16.html">pcre16</a></td>
   27     <td>&nbsp;&nbsp;Discussion of the 16-bit PCRE library</td></tr>
   28 
   29 <tr><td><a href="pcre32.html">pcre32</a></td>
   30     <td>&nbsp;&nbsp;Discussion of the 32-bit PCRE library</td></tr>
   31 
   32 <tr><td><a href="pcreapi.html">pcreapi</a></td>
   33     <td>&nbsp;&nbsp;PCRE's native API</td></tr>
   34 
   35 <tr><td><a href="pcrebuild.html">pcrebuild</a></td>
   36     <td>&nbsp;&nbsp;Building PCRE</td></tr>
   37 
   38 <tr><td><a href="pcrecallout.html">pcrecallout</a></td>
   39     <td>&nbsp;&nbsp;The <i>callout</i> facility</td></tr>
   40 
   41 <tr><td><a href="pcrecompat.html">pcrecompat</a></td>
   42     <td>&nbsp;&nbsp;Compability with Perl</td></tr>
   43 
   44 <tr><td><a href="pcrecpp.html">pcrecpp</a></td>
   45     <td>&nbsp;&nbsp;The C++ wrapper for the PCRE library</td></tr>
   46 
   47 <tr><td><a href="pcredemo.html">pcredemo</a></td>
   48     <td>&nbsp;&nbsp;A demonstration C program that uses the PCRE library</td></tr>
   49 
   50 <tr><td><a href="pcregrep.html">pcregrep</a></td>
   51     <td>&nbsp;&nbsp;The <b>pcregrep</b> command</td></tr>
   52 
   53 <tr><td><a href="pcrejit.html">pcrejit</a></td>
   54     <td>&nbsp;&nbsp;Discussion of the just-in-time optimization support</td></tr>
   55 
   56 <tr><td><a href="pcrelimits.html">pcrelimits</a></td>
   57     <td>&nbsp;&nbsp;Details of size and other limits</td></tr>
   58 
   59 <tr><td><a href="pcrematching.html">pcrematching</a></td>
   60     <td>&nbsp;&nbsp;Discussion of the two matching algorithms</td></tr>
   61 
   62 <tr><td><a href="pcrepartial.html">pcrepartial</a></td>
   63     <td>&nbsp;&nbsp;Using PCRE for partial matching</td></tr>
   64 
   65 <tr><td><a href="pcrepattern.html">pcrepattern</a></td>
   66     <td>&nbsp;&nbsp;Specification of the regular expressions supported by PCRE</td></tr>
   67 
   68 <tr><td><a href="pcreperform.html">pcreperform</a></td>
   69     <td>&nbsp;&nbsp;Some comments on performance</td></tr>
   70 
   71 <tr><td><a href="pcreposix.html">pcreposix</a></td>
   72     <td>&nbsp;&nbsp;The POSIX API to the PCRE 8-bit library</td></tr>
   73 
   74 <tr><td><a href="pcreprecompile.html">pcreprecompile</a></td>
   75     <td>&nbsp;&nbsp;How to save and re-use compiled patterns</td></tr>
   76 
   77 <tr><td><a href="pcresample.html">pcresample</a></td>
   78     <td>&nbsp;&nbsp;Discussion of the pcredemo program</td></tr>
   79 
   80 <tr><td><a href="pcrestack.html">pcrestack</a></td>
   81     <td>&nbsp;&nbsp;Discussion of PCRE's stack usage</td></tr>
   82 
   83 <tr><td><a href="pcresyntax.html">pcresyntax</a></td>
   84     <td>&nbsp;&nbsp;Syntax quick-reference summary</td></tr>
   85 
   86 <tr><td><a href="pcretest.html">pcretest</a></td>
   87     <td>&nbsp;&nbsp;The <b>pcretest</b> command for testing PCRE</td></tr>
   88 
   89 <tr><td><a href="pcreunicode.html">pcreunicode</a></td>
   90     <td>&nbsp;&nbsp;Discussion of Unicode and UTF-8/UTF-16/UTF-32 support</td></tr>
   91 </table>
   92 
   93 <p>
   94 There are also individual pages that summarize the interface for each function
   95 in the library. There is a single page for each triple of 8-bit/16-bit/32-bit
   96 functions.
   97 </p>
   98 
   99 <table>
  100 
  101 <tr><td><a href="pcre_assign_jit_stack.html">pcre_assign_jit_stack</a></td>
  102     <td>&nbsp;&nbsp;Assign stack for JIT matching</td></tr>
  103 
  104 <tr><td><a href="pcre_compile.html">pcre_compile</a></td>
  105     <td>&nbsp;&nbsp;Compile a regular expression</td></tr>
  106 
  107 <tr><td><a href="pcre_compile2.html">pcre_compile2</a></td>
  108     <td>&nbsp;&nbsp;Compile a regular expression (alternate interface)</td></tr>
  109 
  110 <tr><td><a href="pcre_config.html">pcre_config</a></td>
  111     <td>&nbsp;&nbsp;Show build-time configuration options</td></tr>
  112 
  113 <tr><td><a href="pcre_copy_named_substring.html">pcre_copy_named_substring</a></td>
  114     <td>&nbsp;&nbsp;Extract named substring into given buffer</td></tr>
  115 
  116 <tr><td><a href="pcre_copy_substring.html">pcre_copy_substring</a></td>
  117     <td>&nbsp;&nbsp;Extract numbered substring into given buffer</td></tr>
  118 
  119 <tr><td><a href="pcre_dfa_exec.html">pcre_dfa_exec</a></td>
  120     <td>&nbsp;&nbsp;Match a compiled pattern to a subject string
  121     (DFA algorithm; <i>not</i> Perl compatible)</td></tr>
  122 
  123 <tr><td><a href="pcre_exec.html">pcre_exec</a></td>
  124     <td>&nbsp;&nbsp;Match a compiled pattern to a subject string
  125     (Perl compatible)</td></tr>
  126 
  127 <tr><td><a href="pcre_free_study.html">pcre_free_study</a></td>
  128     <td>&nbsp;&nbsp;Free study data</td></tr>
  129 
  130 <tr><td><a href="pcre_free_substring.html">pcre_free_substring</a></td>
  131     <td>&nbsp;&nbsp;Free extracted substring</td></tr>
  132 
  133 <tr><td><a href="pcre_free_substring_list.html">pcre_free_substring_list</a></td>
  134     <td>&nbsp;&nbsp;Free list of extracted substrings</td></tr>
  135 
  136 <tr><td><a href="pcre_fullinfo.html">pcre_fullinfo</a></td>
  137     <td>&nbsp;&nbsp;Extract information about a pattern</td></tr>
  138 
  139 <tr><td><a href="pcre_get_named_substring.html">pcre_get_named_substring</a></td>
  140     <td>&nbsp;&nbsp;Extract named substring into new memory</td></tr>
  141 
  142 <tr><td><a href="pcre_get_stringnumber.html">pcre_get_stringnumber</a></td>
  143     <td>&nbsp;&nbsp;Convert captured string name to number</td></tr>
  144 
  145 <tr><td><a href="pcre_get_stringtable_entries.html">pcre_get_stringtable_entries</a></td>
  146     <td>&nbsp;&nbsp;Find table entries for given string name</td></tr>
  147 
  148 <tr><td><a href="pcre_get_substring.html">pcre_get_substring</a></td>
  149     <td>&nbsp;&nbsp;Extract numbered substring into new memory</td></tr>
  150 
  151 <tr><td><a href="pcre_get_substring_list.html">pcre_get_substring_list</a></td>
  152     <td>&nbsp;&nbsp;Extract all substrings into new memory</td></tr>
  153 
  154 <tr><td><a href="pcre_jit_exec.html">pcre_jit_exec</a></td>
  155     <td>&nbsp;&nbsp;Fast path interface to JIT matching</td></tr>
  156 
  157 <tr><td><a href="pcre_jit_stack_alloc.html">pcre_jit_stack_alloc</a></td>
  158     <td>&nbsp;&nbsp;Create a stack for JIT matching</td></tr>
  159 
  160 <tr><td><a href="pcre_jit_stack_free.html">pcre_jit_stack_free</a></td>
  161     <td>&nbsp;&nbsp;Free a JIT matching stack</td></tr>
  162 
  163 <tr><td><a href="pcre_maketables.html">pcre_maketables</a></td>
  164     <td>&nbsp;&nbsp;Build character tables in current locale</td></tr>
  165 
  166 <tr><td><a href="pcre_pattern_to_host_byte_order.html">pcre_pattern_to_host_byte_order</a></td>
  167     <td>&nbsp;&nbsp;Convert compiled pattern to host byte order if necessary</td></tr>
  168 
  169 <tr><td><a href="pcre_refcount.html">pcre_refcount</a></td>
  170     <td>&nbsp;&nbsp;Maintain reference count in compiled pattern</td></tr>
  171 
  172 <tr><td><a href="pcre_study.html">pcre_study</a></td>
  173     <td>&nbsp;&nbsp;Study a compiled pattern</td></tr>
  174 
  175 <tr><td><a href="pcre_utf16_to_host_byte_order.html">pcre_utf16_to_host_byte_order</a></td>
  176     <td>&nbsp;&nbsp;Convert UTF-16 string to host byte order if necessary</td></tr>
  177 
  178 <tr><td><a href="pcre_utf32_to_host_byte_order.html">pcre_utf32_to_host_byte_order</a></td>
  179     <td>&nbsp;&nbsp;Convert UTF-32 string to host byte order if necessary</td></tr>
  180 
  181 <tr><td><a href="pcre_version.html">pcre_version</a></td>
  182     <td>&nbsp;&nbsp;Return PCRE version and release date</td></tr>
  183 </table>
  184 
  185 </html>