#include <pcre2.h>

       int pcre2_set_substitute_callout(pcre2_match_context *mcontext,
         int (*callout_function)(pcre2_substitute_callout_block *),
         void *callout_data);


       This  function  sets  the  substitute callout fields in a match context
       (the first argument). The second argument specifies a callout function,
       and the third argument is an opaque data item that is passed to it. The
       result of this function is always zero.

       There is a complete description of the PCRE2 native API in the pcre2api
       page and a description of the POSIX API in the pcre2posix page.

PCRE2 10.33                    12 November 2018PCRE2_SET_SUBSTITUTE_CALLOUT(3)
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