PCRE2_SET_SUBSTITUTE_CASE_CALLOUT(3) Library Functions Manual NAME PCRE2 - Perl-compatible regular expressions (revised API) SYNOPSIS #include int pcre2_set_substitute_case_callout(pcre2_match_context *mcontext, PCRE2_SIZE (*callout_function)(PCRE2_SPTR, PCRE2_SIZE, PCRE2_UCHAR *, PCRE2_SIZE, int, void *), void *callout_data); DESCRIPTION This function sets the substitute case 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 10.45 26 December 2024 PCRE2_SET_SUBSTITUTE_CASE_CALLOUT(3)