PCRE_CONFIG(3)

NAME
PCRE - Perl-compatible regular expressions

SYNOPSIS

#include <pcre.h>

int pcre_config(int what, void *where);

DESCRIPTION

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:

  what A code specifying what information is required
  where 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_MATCH_LIMIT_RECURSION
                        Internal recursion depth limit
  PCRE_CONFIG_NEWLINE Value of the default newline sequence:
                        13 (0x000d) for CR
                        10 (0x000a) for LF
                        3338 (0x0d0a) for CRLF
                        -2 for ANYCRLF
                        -1 for ANY
  PCRE_CONFIG_BSR Indicates what \R matches by default:
                        0 all Unicode line endings
                        1 CR, LF, or CRLF only
  PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
                        Threshold of return slots, above
                        which malloc() 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)
  PCRE_CONFIG_UNICODE_PROPERTIES
                        Availability of Unicode property 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 pcreapi page and a description of the POSIX API in the pcreposix page.