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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML><HEAD><TITLE>Man page of PCRE_CONFIG</TITLE>
</HEAD><BODY>
<H1>PCRE_CONFIG</H1>
Section: C Library Functions (3)<BR>Updated: 20 April 2014<BR><A HREF="#index">Index</A>
<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
<A NAME="lbAB">&nbsp;</A>
<H2>NAME</H2>
PCRE - Perl-compatible regular expressions
<A NAME="lbAC">&nbsp;</A>
<H2>SYNOPSIS</H2>
<P>
<B>#include &lt;<A HREF="file:///usr/include/pcre.h">pcre.h</A>&gt;</B>
<P>
<FONT SIZE="-1"><B>int pcre_config(int </B><I>what</I>, void *<I>where</I>);
</FONT>
<P>
<B>int pcre16_config(int </B><I>what</I>, void *<I>where</I>);
<P>
<B>int pcre32_config(int </B><I>what</I>, void *<I>where</I>);
<A NAME="lbAD">&nbsp;</A>
<H2>DESCRIPTION</H2>
<P>
This function makes it possible for a client program to find out which optional
features are available in the version of the PCRE library it is using. The
arguments are as follows:
<P>
<BR>&nbsp;&nbsp;<I>what</I>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A&nbsp;code&nbsp;specifying&nbsp;what&nbsp;information&nbsp;is&nbsp;required
<BR>&nbsp;&nbsp;<I>where</I>&nbsp;&nbsp;&nbsp;&nbsp;Points&nbsp;to&nbsp;where&nbsp;to&nbsp;put&nbsp;the&nbsp;data
<P>
The <I>where</I> argument must point to an integer variable, except for
PCRE_CONFIG_MATCH_LIMIT, PCRE_CONFIG_MATCH_LIMIT_RECURSION, and
PCRE_CONFIG_PARENS_LIMIT, when it must point to an unsigned long integer,
and for PCRE_CONFIG_JITTARGET, when it must point to a const char*.
The available codes are:
<P>
<BR>&nbsp;&nbsp;PCRE_CONFIG_JIT&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Availability&nbsp;of&nbsp;just-in-time&nbsp;compiler
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;support&nbsp;(1=yes&nbsp;0=no)
<BR>&nbsp;&nbsp;PCRE_CONFIG_JITTARGET&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;String&nbsp;containing&nbsp;information&nbsp;about&nbsp;the
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;target&nbsp;architecture&nbsp;for&nbsp;the&nbsp;JIT&nbsp;compiler,
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;or&nbsp;NULL&nbsp;if&nbsp;there&nbsp;is&nbsp;no&nbsp;JIT&nbsp;support
<BR>&nbsp;&nbsp;PCRE_CONFIG_LINK_SIZE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Internal&nbsp;link&nbsp;size:&nbsp;2,&nbsp;3,&nbsp;or&nbsp;4
<BR>&nbsp;&nbsp;PCRE_CONFIG_PARENS_LIMIT&nbsp;&nbsp;Parentheses&nbsp;nesting&nbsp;limit
<BR>&nbsp;&nbsp;PCRE_CONFIG_MATCH_LIMIT&nbsp;&nbsp;&nbsp;Internal&nbsp;resource&nbsp;limit
<BR>&nbsp;&nbsp;PCRE_CONFIG_MATCH_LIMIT_RECURSION
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Internal&nbsp;recursion&nbsp;depth&nbsp;limit
<BR>&nbsp;&nbsp;PCRE_CONFIG_NEWLINE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Value&nbsp;of&nbsp;the&nbsp;default&nbsp;newline&nbsp;sequence:
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;13&nbsp;(0x000d)&nbsp;&nbsp;&nbsp;&nbsp;for&nbsp;CR
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10&nbsp;(0x000a)&nbsp;&nbsp;&nbsp;&nbsp;for&nbsp;LF
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3338&nbsp;(0x0d0a)&nbsp;&nbsp;&nbsp;&nbsp;for&nbsp;CRLF
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for&nbsp;ANYCRLF
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for&nbsp;ANY
<BR>&nbsp;&nbsp;PCRE_CONFIG_BSR&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicates&nbsp;what&nbsp;\R&nbsp;matches&nbsp;by&nbsp;default:
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;all&nbsp;Unicode&nbsp;line&nbsp;endings
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CR,&nbsp;LF,&nbsp;or&nbsp;CRLF&nbsp;only
<BR>&nbsp;&nbsp;PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Threshold&nbsp;of&nbsp;return&nbsp;slots,&nbsp;above&nbsp;which
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>malloc()</B>&nbsp;is&nbsp;used&nbsp;by&nbsp;the&nbsp;POSIX&nbsp;API
<BR>&nbsp;&nbsp;PCRE_CONFIG_STACKRECURSE&nbsp;&nbsp;Recursion&nbsp;implementation&nbsp;(1=stack&nbsp;0=heap)
<BR>&nbsp;&nbsp;PCRE_CONFIG_UTF16&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Availability&nbsp;of&nbsp;UTF-16&nbsp;support&nbsp;(1=yes
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0=no);&nbsp;option&nbsp;for&nbsp;<B>pcre16_config()</B>
<BR>&nbsp;&nbsp;PCRE_CONFIG_UTF32&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Availability&nbsp;of&nbsp;UTF-32&nbsp;support&nbsp;(1=yes
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0=no);&nbsp;option&nbsp;for&nbsp;<B>pcre32_config()</B>
<BR>&nbsp;&nbsp;PCRE_CONFIG_UTF8&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Availability&nbsp;of&nbsp;UTF-8&nbsp;support&nbsp;(1=yes&nbsp;0=no);
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;option&nbsp;for&nbsp;<B>pcre_config()</B>
<BR>&nbsp;&nbsp;PCRE_CONFIG_UNICODE_PROPERTIES
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Availability&nbsp;of&nbsp;Unicode&nbsp;property&nbsp;support
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1=yes&nbsp;0=no)
<P>
The function yields 0 on success or PCRE_ERROR_BADOPTION otherwise. That error
is also given if PCRE_CONFIG_UTF16 or PCRE_CONFIG_UTF32 is passed to
<B>pcre_config()</B>, if PCRE_CONFIG_UTF8 or PCRE_CONFIG_UTF32 is passed to
<B>pcre16_config()</B>, or if PCRE_CONFIG_UTF8 or PCRE_CONFIG_UTF16 is passed to
<B>pcre32_config()</B>.
<P>
There is a complete description of the PCRE native API in the
<B>pcreapi</B>
page and a description of the POSIX API in the
<B>pcreposix</B>
page.
<P>
<HR>
<A NAME="index">&nbsp;</A><H2>Index</H2>
<DL>
<DT id="1"><A HREF="#lbAB">NAME</A><DD>
<DT id="2"><A HREF="#lbAC">SYNOPSIS</A><DD>
<DT id="3"><A HREF="#lbAD">DESCRIPTION</A><DD>
</DL>
<HR>
This document was created by
<A HREF="/cgi-bin/man/man2html">man2html</A>,
using the manual pages.<BR>
Time: 00:05:51 GMT, March 31, 2021
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