PCRE_GET_SUBSTRING(3)     Library Functions Manual     PCRE_GET_SUBSTRING(3)

NAME         top

       PCRE - Perl-compatible regular expressions

SYNOPSIS         top

       #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         top

       This is a convenience function for extracting a captured substring.
       The arguments are:

         subject       Subject that has been successfully matched
         ovector       Offset vector that pcre[16|32]_exec() used
         stringcount   Value returned by pcre[16|32]_exec()
         stringnumber  Number of the required substring
         stringptr     Where to put the string pointer

       The memory in which the substring is placed is obtained by calling
       pcre[16|32]_malloc(). The convenience function
       pcre[16|32]_free_substring() can be used to free it when it is no
       longer needed. The yield of the function is the length of the
       substring, PCRE_ERROR_NOMEMORY if sufficient memory could not be
       obtained, or PCRE_ERROR_NOSUBSTRING if the string number is 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.

COLOPHON         top

       This page is part of the PCRE (Perl Compatible Regular Expressions)
       project.  Information about the project can be found at 
       ⟨http://www.pcre.org/⟩.  If you have a bug report for this manual
       page, see ⟨http://bugs.exim.org/enter_bug.cgi?product=PCRE⟩.  This
       page was obtained from the tarball pcre-8.41.tar.gz fetched from
       ⟨ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/⟩ on
       2018-02-02.  If you discover any rendering problems in this HTML ver‐
       sion of the page, or you believe there is a better or more up-to-date
       source for the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original man‐
       ual page), send a mail to man-pages@man7.org

PCRE 8.30                       24 June 2012           PCRE_GET_SUBSTRING(3)

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