pcre_config man page on FreeBSD

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       PCRE - Perl-compatible regular expressions


       #include <pcre.h>

       int pcre_config(int what, void *where);


       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
				   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
				   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)
				   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.


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