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<html>
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<head>
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<title>pcre_config specification</title>
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</head>
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<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
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<h1>pcre_config man page</h1>
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<p>
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Return to the <a href="index.html">PCRE index page</a>.
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</p>
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<p>
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This page is part of the PCRE HTML documentation. It was generated automatically
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from the original man page. If there is any nonsense in it, please consult the
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man page, in case the conversion went wrong.
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<br>
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<br><b>
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SYNOPSIS
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</b><br>
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<P>
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<b>#include <pcre.h></b>
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</P>
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<P>
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<b>int pcre_config(int <i>what</i>, void *<i>where</i>);</b>
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</P>
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<P>
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<b>int pcre16_config(int <i>what</i>, void *<i>where</i>);</b>
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</P>
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<P>
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<b>int pcre32_config(int <i>what</i>, void *<i>where</i>);</b>
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</P>
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<br><b>
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DESCRIPTION
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</b><br>
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<P>
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This function makes it possible for a client program to find out which optional
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features are available in the version of the PCRE library it is using. The
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arguments are as follows:
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<pre>
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<i>what</i> A code specifying what information is required
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<i>where</i> Points to where to put the data
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</pre>
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The <i>where</i> argument must point to an integer variable, except for
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PCRE_CONFIG_MATCH_LIMIT, PCRE_CONFIG_MATCH_LIMIT_RECURSION, and
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PCRE_CONFIG_PARENS_LIMIT, when it must point to an unsigned long integer,
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and for PCRE_CONFIG_JITTARGET, when it must point to a const char*.
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The available codes are:
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<pre>
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PCRE_CONFIG_JIT Availability of just-in-time compiler
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support (1=yes 0=no)
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PCRE_CONFIG_JITTARGET String containing information about the
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target architecture for the JIT compiler,
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or NULL if there is no JIT support
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PCRE_CONFIG_LINK_SIZE Internal link size: 2, 3, or 4
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PCRE_CONFIG_PARENS_LIMIT Parentheses nesting limit
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PCRE_CONFIG_MATCH_LIMIT Internal resource limit
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PCRE_CONFIG_MATCH_LIMIT_RECURSION
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Internal recursion depth limit
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PCRE_CONFIG_NEWLINE Value of the default newline sequence:
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13 (0x000d) for CR
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10 (0x000a) for LF
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3338 (0x0d0a) for CRLF
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-2 for ANYCRLF
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-1 for ANY
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PCRE_CONFIG_BSR Indicates what \R matches by default:
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0 all Unicode line endings
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1 CR, LF, or CRLF only
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PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
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Threshold of return slots, above which
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<b>malloc()</b> is used by the POSIX API
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PCRE_CONFIG_STACKRECURSE Recursion implementation (1=stack 0=heap)
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PCRE_CONFIG_UTF16 Availability of UTF-16 support (1=yes
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0=no); option for <b>pcre16_config()</b>
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PCRE_CONFIG_UTF32 Availability of UTF-32 support (1=yes
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0=no); option for <b>pcre32_config()</b>
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PCRE_CONFIG_UTF8 Availability of UTF-8 support (1=yes 0=no);
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option for <b>pcre_config()</b>
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PCRE_CONFIG_UNICODE_PROPERTIES
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Availability of Unicode property support
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(1=yes 0=no)
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</pre>
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The function yields 0 on success or PCRE_ERROR_BADOPTION otherwise. That error
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is also given if PCRE_CONFIG_UTF16 or PCRE_CONFIG_UTF32 is passed to
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<b>pcre_config()</b>, if PCRE_CONFIG_UTF8 or PCRE_CONFIG_UTF32 is passed to
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<b>pcre16_config()</b>, or if PCRE_CONFIG_UTF8 or PCRE_CONFIG_UTF16 is passed to
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<b>pcre32_config()</b>.
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</P>
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<P>
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There is a complete description of the PCRE native API in the
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<a href="pcreapi.html"><b>pcreapi</b></a>
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page and a description of the POSIX API in the
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<a href="pcreposix.html"><b>pcreposix</b></a>
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page.
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<p>
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Return to the <a href="index.html">PCRE index page</a>.
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</p>
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