SysTutorials Posts

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> int pcre_jit_exec(const pcre *code, const pcre_extra *extra, const char *subject, int length, int startoffset, int options, int *ovector, int ovecsize, pcre_jit_stack *jstack); int pcre16_jit_exec(const pcre16 *code, const pcre16_extra *extra, PCRE_SPTR16 subject, int length, int startoffset, int options, int *ovector, int ovecsize, pcre_jit_stack *jstack); int pcre32_jit_exec(const pcre32 *code,…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> int pcre_get_substring_list(const char *subject, int *ovector, int stringcount, const char ***listptr); int pcre16_get_substring_list(PCRE_SPTR16 subject, int *ovector, int stringcount, PCRE_SPTR16 **listptr); int pcre32_get_substring_list(PCRE_SPTR32 subject, int *ovector, int stringcount, PCRE_SPTR32 **listptr); Description This is a convenience function for extracting a list of all the captured substrings. The arguments are:…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> int pcre_get_substring(const char *subject, int *ovector, int stringcount, int stringnumber, const char **stringptr); int pcre16_get_substring(PCRE_SPTR16 subject, int *ovector, int stringcount, int stringnumber, PCRE_SPTR16 *stringptr); int pcre32_get_substring(PCRE_SPTR32 subject, int *ovector, int stringcount, int stringnumber, PCRE_SPTR32 *stringptr); Description This is a convenience function for extracting a captured substring. The…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> int pcre_get_stringtable_entries(const pcre *code, const char *name, char **first, char **last); int pcre16_get_stringtable_entries(const pcre16 *code, PCRE_SPTR16 name, PCRE_UCHAR16 **first, PCRE_UCHAR16 **last); int pcre32_get_stringtable_entries(const pcre32 *code, PCRE_SPTR32 name, PCRE_UCHAR32 **first, PCRE_UCHAR32 **last); Description This convenience function finds, for a compiled pattern, the first and last entries for a…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> int pcre_get_stringnumber(const pcre *code, const char *name); int pcre16_get_stringnumber(const pcre16 *code, PCRE_SPTR16 name); int pcre32_get_stringnumber(const pcre32 *code, PCRE_SPTR32 name); Description This convenience function finds the number of a named substring capturing parenthesis in a compiled pattern. Its arguments are:   code    Compiled regular expression   name    Name whose number is required…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> int pcre_get_named_substring(const pcre *code, const char *subject, int *ovector, int stringcount, const char *stringname, const char **stringptr); int pcre16_get_named_substring(const pcre16 *code, PCRE_SPTR16 subject, int *ovector, int stringcount, PCRE_SPTR16 stringname, PCRE_SPTR16 *stringptr); int pcre32_get_named_substring(const pcre32 *code, PCRE_SPTR32 subject, int *ovector, int stringcount, PCRE_SPTR32 stringname, PCRE_SPTR32 *stringptr); Description This…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> int pcre_fullinfo(const pcre *code, const pcre_extra *extra, int what, void *where); int pcre16_fullinfo(const pcre16 *code, const pcre16_extra *extra, int what, void *where); int pcre32_fullinfo(const pcre32 *code, const pcre32_extra *extra, int what, void *where); Description This function returns information about a compiled pattern. Its arguments are:   code                      Compiled regular…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> void pcre_free_substring_list(const char **stringptr); void pcre16_free_substring_list(PCRE_SPTR16 *stringptr); void pcre32_free_substring_list(PCRE_SPTR32 *stringptr); Description This is a convenience function for freeing the store obtained by a previous call to pcre[16|32]_get_substring_list(). Its only argument is a pointer to the list of string pointers. There is a complete description of the PCRE…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> void pcre_free_substring(const char *stringptr); void pcre16_free_substring(PCRE_SPTR16 stringptr); void pcre32_free_substring(PCRE_SPTR32 stringptr); Description This is a convenience function for freeing the store obtained by a previous call to pcre[16|32]_get_substring() or pcre[16|32]_get_named_substring(). Its only argument is a pointer to the string. There is a complete description of the PCRE native…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> void pcre_free_study(pcre_extra *extra); void pcre16_free_study(pcre16_extra *extra); void pcre32_free_study(pcre32_extra *extra); Description This function is used to free the memory used for the data generated by a call to pcre[16|32]_study() when it is no longer needed. The argument must be the result of such a call. There is a…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> int pcre_exec(const pcre *code, const pcre_extra *extra, const char *subject, int length, int startoffset, int options, int *ovector, int ovecsize); int pcre16_exec(const pcre16 *code, const pcre16_extra *extra, PCRE_SPTR16 subject, int length, int startoffset, int options, int *ovector, int ovecsize); int pcre32_exec(const pcre32 *code, const pcre32_extra *extra, PCRE_SPTR32…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> int pcre_dfa_exec(const pcre *code, const pcre_extra *extra, const char *subject, int length, int startoffset, int options, int *ovector, int ovecsize, int *workspace, int wscount); int pcre16_dfa_exec(const pcre16 *code, const pcre16_extra *extra, PCRE_SPTR16 subject, int length, int startoffset, int options, int *ovector, int ovecsize, int *workspace, int wscount);…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> int pcre_copy_substring(const char *subject, int *ovector, int stringcount, int stringnumber, char *buffer, int buffersize); int pcre16_copy_substring(PCRE_SPTR16 subject, int *ovector, int stringcount, int stringnumber, PCRE_UCHAR16 *buffer, int buffersize); int pcre32_copy_substring(PCRE_SPTR32 subject, int *ovector, int stringcount, int stringnumber, PCRE_UCHAR32 *buffer, int buffersize); Description This is a convenience function for…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> int pcre_copy_named_substring(const pcre *code, const char *subject, int *ovector, int stringcount, const char *stringname, char *buffer, int buffersize); int pcre16_copy_named_substring(const pcre16 *code, PCRE_SPTR16 subject, int *ovector, int stringcount, PCRE_SPTR16 stringname, PCRE_UCHAR16 *buffer, int buffersize); int pcre32_copy_named_substring(const pcre32 *code, PCRE_SPTR32 subject, int *ovector, int stringcount, PCRE_SPTR32 stringname, PCRE_UCHAR32…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> int pcre_config(int what, void *where); int pcre16_config(int what, void *where); int pcre32_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. The arguments are as…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> pcre *pcre_compile2(const char *pattern, int options, int *errorcodeptr, const char **errptr, int *erroffset, const unsigned char *tableptr); pcre16 *pcre16_compile2(PCRE_SPTR16 pattern, int options, int *errorcodeptr, const char **errptr, int *erroffset, const unsigned char *tableptr); pcre32 *pcre32_compile2(PCRE_SPTR32 pattern, int options, int *errorcodeptr,£ const char **errptr, int *erroffset, const unsigned…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> pcre *pcre_compile(const char *pattern, int options, const char **errptr, int *erroffset, const unsigned char *tableptr); pcre16 *pcre16_compile(PCRE_SPTR16 pattern, int options, const char **errptr, int *erroffset, const unsigned char *tableptr); pcre32 *pcre32_compile(PCRE_SPTR32 pattern, int options, const char **errptr, int *erroffset, const unsigned char *tableptr); Description This function compiles…

PCRE – Perl-compatible regular expressions Synopsis #include <pcre.h> void pcre_assign_jit_stack(pcre_extra *extra, pcre_jit_callback callback, void *data); void pcre16_assign_jit_stack(pcre16_extra *extra, pcre16_jit_callback callback, void *data); void pcre32_assign_jit_stack(pcre32_extra *extra, pcre32_jit_callback callback, void *data); Description This function provides control over the memory used as a stack at run-time by a call to pcre[16|32]_exec() with a pattern that has been successfully…

PCRE – Perl-compatible regular expressions #include < pcre.h> Pcre 16-Bit Api Basic Functions pcre16 *pcre16_compile(PCRE_SPTR16 pattern, int options, const char **errptr, int *erroffset, const unsigned char *tableptr); pcre16 *pcre16_compile2(PCRE_SPTR16 pattern, int options, int *errorcodeptr, const char **errptr, int *erroffset, const unsigned char *tableptr); pcre16_extra *pcre16_study(const pcre16 *code, int options, const char **errptr); void pcre16_free_study(pcre16_extra *extra);…

PCRE – Perl-compatible regular expressions (original API) Please Take Note This document relates to PCRE releases that use the original API, with library names libpcre, libpcre16, and libpcre32. January 2015 saw the first release of a new API, known as PCRE2, with release numbers starting at 10.00 and library names libpcre2-8, libpcre2-16, and libpcre2-32. The…