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  8. <head>
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  9. <title>PCRE specification</title>
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  12. <h1>Perl-compatible Regular Expressions (PCRE)</h1>
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  13. <p>
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  14. The HTML documentation for PCRE comprises the following pages:
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  15. </p>
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  16. 

  17. <table>
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  18. <tr><td><a href="pcre.html">pcre</a></td>
    19. 

  19.     <td>&nbsp;&nbsp;Introductory page</td></tr>
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  20. 

  21. <tr><td><a href="pcre-config.html">pcre-config</a></td>
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  22.     <td>&nbsp;&nbsp;Information about the installation configuration</td></tr>
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  23. 

  24. <tr><td><a href="pcreapi.html">pcreapi</a></td>
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  25.     <td>&nbsp;&nbsp;PCRE's native API</td></tr>
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    27. 

  27. <tr><td><a href="pcrebuild.html">pcrebuild</a></td>
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  28.     <td>&nbsp;&nbsp;Options for building PCRE</td></tr>
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  29. 

  30. <tr><td><a href="pcrecallout.html">pcrecallout</a></td>
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  31.     <td>&nbsp;&nbsp;The <i>callout</i> facility</td></tr>
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  32. 

  33. <tr><td><a href="pcrecompat.html">pcrecompat</a></td>
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  34.     <td>&nbsp;&nbsp;Compability with Perl</td></tr>
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  35. 

  36. <tr><td><a href="pcrecpp.html">pcrecpp</a></td>
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  37.     <td>&nbsp;&nbsp;The C++ wrapper for the PCRE library</td></tr>
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  38. 

  39. <tr><td><a href="pcregrep.html">pcregrep</a></td>
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  40.     <td>&nbsp;&nbsp;The <b>pcregrep</b> command</td></tr>
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  41. 

  42. <tr><td><a href="pcrematching.html">pcrematching</a></td>
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  43.     <td>&nbsp;&nbsp;Discussion of the two matching algorithms</td></tr>
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  44. 

  45. <tr><td><a href="pcrepartial.html">pcrepartial</a></td>
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  46.     <td>&nbsp;&nbsp;Using PCRE for partial matching</td></tr>
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  47. 

  48. <tr><td><a href="pcrepattern.html">pcrepattern</a></td>
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  49.     <td>&nbsp;&nbsp;Specification of the regular expressions supported by PCRE</td></tr>
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  50. 

  51. <tr><td><a href="pcreperform.html">pcreperform</a></td>
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  52.     <td>&nbsp;&nbsp;Some comments on performance</td></tr>
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  53. 

  54. <tr><td><a href="pcreposix.html">pcreposix</a></td>
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  55.     <td>&nbsp;&nbsp;The POSIX API to the PCRE library</td></tr>
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  56. 

  57. <tr><td><a href="pcreprecompile.html">pcreprecompile</a></td>
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  58.     <td>&nbsp;&nbsp;How to save and re-use compiled patterns</td></tr>
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  59. 

  60. <tr><td><a href="pcresample.html">pcresample</a></td>
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  61.     <td>&nbsp;&nbsp;Description of the sample program</td></tr>
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  62. 

  63. <tr><td><a href="pcrestack.html">pcrestack</a></td>
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  64.     <td>&nbsp;&nbsp;Discussion of PCRE's stack usage</td></tr>
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    66. 

  66. <tr><td><a href="pcresyntax.html">pcresyntax</a></td>
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  67.     <td>&nbsp;&nbsp;Syntax quick-reference summary</td></tr>
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  68. 

  69. <tr><td><a href="pcretest.html">pcretest</a></td>
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  70.     <td>&nbsp;&nbsp;The <b>pcretest</b> command for testing PCRE</td></tr>
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  71. </table>
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  72. 

  73. <p>
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  74. There are also individual pages that summarize the interface for each function
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  75. in the library:
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  76. </p>
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  77. 

  78. <table>
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  79. 

  80. <tr><td><a href="pcre_compile.html">pcre_compile</a></td>
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  81.     <td>&nbsp;&nbsp;Compile a regular expression</td></tr>
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  82. 

  83. <tr><td><a href="pcre_compile2.html">pcre_compile2</a></td>
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  84.     <td>&nbsp;&nbsp;Compile a regular expression (alternate interface)</td></tr>
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  85. 

  86. <tr><td><a href="pcre_config.html">pcre_config</a></td>
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  87.     <td>&nbsp;&nbsp;Show build-time configuration options</td></tr>
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  88. 

  89. <tr><td><a href="pcre_copy_named_substring.html">pcre_copy_named_substring</a></td>
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  90.     <td>&nbsp;&nbsp;Extract named substring into given buffer</td></tr>
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  91. 

  92. <tr><td><a href="pcre_copy_substring.html">pcre_copy_substring</a></td>
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  93.     <td>&nbsp;&nbsp;Extract numbered substring into given buffer</td></tr>
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  94. 

  95. <tr><td><a href="pcre_dfa_exec.html">pcre_dfa_exec</a></td>
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  96.     <td>&nbsp;&nbsp;Match a compiled pattern to a subject string
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  97.     (DFA algorithm; <i>not</i> Perl compatible)</td></tr>
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  98. 

  99. <tr><td><a href="pcre_exec.html">pcre_exec</a></td>
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  100.     <td>&nbsp;&nbsp;Match a compiled pattern to a subject string
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  101.     (Perl compatible)</td></tr>
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  102. 

  103. <tr><td><a href="pcre_free_substring.html">pcre_free_substring</a></td>
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  104.     <td>&nbsp;&nbsp;Free extracted substring</td></tr>
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  105. 

  106. <tr><td><a href="pcre_free_substring_list.html">pcre_free_substring_list</a></td>
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  107.     <td>&nbsp;&nbsp;Free list of extracted substrings</td></tr>
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  108. 

  109. <tr><td><a href="pcre_fullinfo.html">pcre_fullinfo</a></td>
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  110.     <td>&nbsp;&nbsp;Extract information about a pattern</td></tr>
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  111. 

  112. <tr><td><a href="pcre_get_named_substring.html">pcre_get_named_substring</a></td>
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  113.     <td>&nbsp;&nbsp;Extract named substring into new memory</td></tr>
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  115. <tr><td><a href="pcre_get_stringnumber.html">pcre_get_stringnumber</a></td>
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  116.     <td>&nbsp;&nbsp;Convert captured string name to number</td></tr>
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  117. 

  118. <tr><td><a href="pcre_get_substring.html">pcre_get_substring</a></td>
    119. 

  119.     <td>&nbsp;&nbsp;Extract numbered substring into new memory</td></tr>
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  120. 

  121. <tr><td><a href="pcre_get_substring_list.html">pcre_get_substring_list</a></td>
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  122.     <td>&nbsp;&nbsp;Extract all substrings into new memory</td></tr>
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  124. <tr><td><a href="pcre_info.html">pcre_info</a></td>
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  125.     <td>&nbsp;&nbsp;Obsolete information extraction function</td></tr>
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  126. 

  127. <tr><td><a href="pcre_maketables.html">pcre_maketables</a></td>
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  128.     <td>&nbsp;&nbsp;Build character tables in current locale</td></tr>
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  129. 

  130. <tr><td><a href="pcre_refcount.html">pcre_refcount</a></td>
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  131.     <td>&nbsp;&nbsp;Maintain reference count in compiled pattern</td></tr>
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  132. 

  133. <tr><td><a href="pcre_study.html">pcre_study</a></td>
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  134.     <td>&nbsp;&nbsp;Study a compiled pattern</td></tr>
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  135. 

  136. <tr><td><a href="pcre_version.html">pcre_version</a></td>
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  137.     <td>&nbsp;&nbsp;Return PCRE version and release date</td></tr>
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  138. </table>
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