Test, validate and match regular expressions
Matches variations of the Spanish phrase 'muy fácil' ('very easy'), tolerating common misspellings and accent differences. It accepts 'mu', 'muy', or 'mui', any single separator character, and multiple spellings like facil, fazil, fasil, fácíl, with or without the trailing 'l'. With gmi flags, it finds all occurrences regardless of case. Useful for filtering user comments, chat moderation, or detecting casual expressions in informal Spanish text.