fmt_parser.readcc [method]

fmt_parser.readcc( string class, int num = 2^31-1 (0x7fffffff) )

reads and returns at most num bytes that match the character class class

• returns null and emits a warning if the class is empty/only contains the inversion symbol "^"
• may return null and emit a warning on unexpected read errors

stream = fmt_string_parser( "what is this" );
stream.readcc( "a-z" ); // returns "what"
stream.readcc( "^a-z" ); // returns " "