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PCRE2_SET_OPTIMIZE(3)	   Library Functions Manual	 PCRE2_SET_OPTIMIZE(3)

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

SYNOPSIS

       #include	<pcre2.h>

       int pcre2_set_optimize(pcre2_compile_context *ccontext,
	 uint32_t directive);

DESCRIPTION

       This  function controls which performance optimizations will be applied
       by pcre2_compile(). It can be called multiple times with	the same  com-
       pile  context;  the  effects  are cumulative, with the effects of later
       calls taking precedence over earlier ones.

       The result is zero for success, PCRE2_ERROR_NULL	if ccontext  is	 NULL,
       or  PCRE2_ERROR_BADOPTION  if directive is unknown. The latter could be
       useful to detect	if a certain optimization is available.

       The list	of possible values for the directive parameter are:

	 PCRE2_OPTIMIZATION_FULL   Enable all optimizations (default)
	 PCRE2_OPTIMIZATION_NONE   Disable all optimizations
	 PCRE2_AUTO_POSSESS	   Enable auto-possessification
	 PCRE2_AUTO_POSSESS_OFF	   Disable auto-possessification
	 PCRE2_DOTSTAR_ANCHOR	   Enable implicit dotstar anchoring
	 PCRE2_DOTSTAR_ANCHOR_OFF  Disable implicit dotstar anchoring
	 PCRE2_START_OPTIMIZE	   Enable start-up optimizations at match time
	 PCRE2_START_OPTIMIZE_OFF  Disable  start-up  optimizations  at	 match
       time

       There  is a complete description	of the PCRE2 native API, including de-
       tailed descriptions directive parameter values in the pcre2api page.

PCRE2 10.45		       22 September 2024	 PCRE2_SET_OPTIMIZE(3)

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