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PCRE2_MATC...OM_PATTERN(3) Library Functions Manual PCRE2_MATC...OM_PATTERN(3)

NAME
       PCRE2 - Perl-compatible regular expressions (revised API)

SYNOPSIS

       #include	<pcre2.h>

       pcre2_match_data	*pcre2_match_data_create_from_pattern(
	 const pcre2_code *code, pcre2_general_context *gcontext);

DESCRIPTION

       This  function creates a	new match data block for holding the result of
       a match.	 The first argument points to a	compiled pattern.  The	number
       of capturing parentheses	within the pattern is used to compute the num-
       ber  of	pairs  of  offsets  that are required in the match data	block.
       These form the "output vector" (ovector)	within the match  data	block,
       and are used to identify	the matched string and any captured substrings
       when  matching  with pcre2_match(). If you are using pcre2_dfa_match(),
       which uses the output  vector  in  a  different	way,  you  should  use
       pcre2_match_data_create() instead of this function.

       The second argument points to a general context,	for custom memory man-
       agement,	 or  is	 NULL to use the same memory allocator as was used for
       the compiled pattern. The result	of the function	is NULL	if the	memory
       for the block could not be obtained.

       There is	a complete description of the PCRE2 native API in the pcre2api
       page and	a description of the POSIX API in the pcre2posix page.

PCRE2 10.45			19 August 2022	    PCRE2_MATC...OM_PATTERN(3)

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