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PCRE_STUDY(3) Library Functions Manual PCRE_STUDY(3) NAME PCRE - Perl-compatible regular expressions SYNOPSIS #include <pcre.h> pcre_extra *pcre_study(const pcre *code, int options, const char **errptr); pcre16_extra *pcre16_study(const pcre16 *code, int options, const char **errptr); pcre32_extra *pcre32_study(const pcre32 *code, int options, const char **errptr); DESCRIPTION This function studies a compiled pattern, to see if additional information can be extracted that might speed up matching. Its arguments are: code A compiled regular expression options Options for pcre[16|32]_study() errptr Where to put an error message If the function succeeds, it returns a value that can be passed to pcre[16|32]_exec() or pcre[16|32]_dfa_exec() via their extra arguments. If the function returns NULL, either it could not find any additional in- formation, or there was an error. You can tell the difference by looking at the error value. It is NULL in first case. The only option is PCRE_STUDY_JIT_COMPILE. It requests just-in-time compi- lation if possible. If PCRE has been compiled without JIT support, this op- tion is ignored. See the pcrejit page for further details. 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. PCRE 8.30 24 June 2012 PCRE_STUDY(3)
NAME | SYNOPSIS | DESCRIPTION
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