filter_parse_regex(9)

🌸 filter_parse_regex(9) — Kernel API Manual 🌸

okay so bestie, this is the manual page for filter_parse_regex(9) from the Kernel API Manual, and it's literally about parsing a basic regex. no cap, it's giving kernel internals but make it cute. slay. 💖

✨ NAME ✨

filter_parse_regex — parse a basic regex 💅

✨ SYNOPSIS ✨

enum regex_type filter_parse_regex (char *buff , int len , char **search
       , int *not );

🎀 ARGUMENTS 🎀

• buff — the raw regex 🍓
• len — length of the regex
• search — will point to the beginning of the string to compare
• not — tell whether the match will have to be inverted

💖 DESCRIPTION 💖

Okay so here's the whole vibe: this passes in a buffer containing a regex, and this function will set search to point to the search part of the buffer and return the type of search it is (see enum above). 👑

Heads up bestie: This does modify buff. Not me being dramatic — the original literally says so. 😭

Returns enum type. search returns the pointer to use for comparison. not returns 1 if buff started with a '!', 0 otherwise. 💅

🦋 SEE ALSO 🦋

Kernel file ./kernel/trace/trace_events_filter.c — plus struct prog_entry(9), update_preds(9), create_filter(9), and create_system_filter(9) 🌈

mwah 💋 that's the page! source/version: ./kernel/trace • dated October 2026 🎀✨