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.TH PCRE 3
.SH NAME
PCRE - Perl-compatible regular expressions
.SH SYNOPSIS
.rs
.sp
.B #include <pcre.h>
.PP
.SM
.br
.B int pcre_config(int \fIwhat\fR, void *\fIwhere\fR);
.SH DESCRIPTION
.rs
.sp
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. Its
arguments are as follows:
\fIwhat\fR A code specifying what information is required
\fIwhere\fR Points to where to put the data
The available codes are:
PCRE_CONFIG_LINK_SIZE Internal link size: 2, 3, or 4
PCRE_CONFIG_MATCH_LIMIT Internal resource limit
PCRE_CONFIG_NEWLINE Value of the newline character
PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
Threshold of return slots, above
which \fBmalloc()\fR is used by
the POSIX API
PCRE_CONFIG_STACKRECURSE Recursion implementation (1=stack 0=heap)
PCRE_CONFIG_UTF8 Availability of UTF-8 support (1=yes 0=no)
The function yields 0 on success or PCRE_ERROR_BADOPTION otherwise.
There is a complete description of the PCRE native API in the
.\" HREF
\fBpcreapi\fR
.\"
page, and a description of the POSIX API in the
.\" HREF
\fBpcreposix\fR
.\"
page.
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