- (string-match PAT STRING [NUMERRS] [WHOLEWORD]) => BOOLprocedure
Tests whether the string STRING matches the compiled pattern PAT. The optional keyword parameter NUMERRS is the number of errors permitted. One error corresponds to a substitution, an insertion or a deletion of a character. NUMERRS default to 0 (exact match). The optional keyword parameter WHOLEWORD is true if the pattern must match a whole word, false if it can match inside a word. It defaults to false (match inside words).