PCRE(3)                                                 PCRE(3)





NAME
       PCRE - Perl-compatible regular expressions

SYNOPSIS

       #include <pcre.h>

       int  pcre_fullinfo(const  pcre  *code,  const pcre_extra
       *extra,
            int what, void *where);

DESCRIPTION

       This function returns information about a compiled  pat-
       tern. Its arguments are:

         code                      Compiled regular expression
         extra                      Result  of  pcre_study() or
       NULL
         what                      What information is required
         where                     Where to put the information

       The following information is available:

         PCRE_INFO_BACKREFMAX      Number of highest back  ref-
       erence
         PCRE_INFO_CAPTURECOUNT     Number of capturing subpat-
       terns
         PCRE_INFO_DEFAULT_TABLES  Pointer to default tables
         PCRE_INFO_FIRSTBYTE        Fixed  first  byte  for   a
       match, or
                                     -1 for start of string
                                        or after newline, or
                                     -2 otherwise
         PCRE_INFO_FIRSTTABLE      Table of first bytes
                                     (after studying)
         PCRE_INFO_LASTLITERAL     Literal last byte required
         PCRE_INFO_NAMECOUNT       Number of named subpatterns
         PCRE_INFO_NAMEENTRYSIZE   Size of name table entry
         PCRE_INFO_NAMETABLE       Pointer to name table
         PCRE_INFO_OPTIONS         Options used for compilation
         PCRE_INFO_SIZE            Size of compiled pattern
         PCRE_INFO_STUDYSIZE       Size of study data

       The yield of the function is zero on success or:

         PCRE_ERROR_NULL           the argument code was NULL
                                   the argument where was NULL
         PCRE_ERROR_BADMAGIC       the "magic number"  was  not
       found
         PCRE_ERROR_BADOPTION        the   value  of  what  was
       invalid

       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(3)
