PCRE(3)                                                   PCRE(3)



NAME
       PCRE - Perl-compatible regular expressions

SYNOPSIS

       #include 

       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 refer-
       ence
         PCRE_INFO_CAPTURECOUNT   Number of capturing subpatterns
         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

       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  API  in  the
       pcreapi page.



                                                          PCRE(3)