PCRE2_SET_CALLOUT(3)

💅 NAME 💅

PCRE2 - Perl-compatible regular expressions (revised API). This is the PCRE2_SET_CALLOUT(3) page from the Library Functions Manual, and it's here to explain the set-callout function, bestie 🫶✨

✨ SYNOPSIS ✨

       #include <pcre2.h>

       int pcre2_set_callout(pcre2_match_context *mcontext,
         int (*callout_function)(pcre2_callout_block *),
         void *callout_data);

🌸 DESCRIPTION 🌸

okay so pcre2_set_callout() sets the callout fields in a match context — that's the first argument, mcontext — and it's giving "configure the callout setup" energy 💅

• mcontext — the match context whose callout fields get set (the first argument).
• callout_function — the second argument specifies a callout function, with the type int (*callout_function)(pcre2_callout_block *).
• callout_data — the third argument is an opaque data item that is passed to the callout function.

The result of this function is always zero. always. zero. no cap 🫶✨

There's a complete description of the PCRE2 native API in the pcre2api page, and a description of the POSIX API in the pcre2posix page. iykyk 📚

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cute sign-off: PCRE2 10.47 🌸 25 March 2017 🌸 PCRE2_SET_CALLOUT(3) — mwah, go slay your regex callouts 💖