modulus operator

lexer.v

@@ -25,6 +25,7 @@ enum TokenType as u8 {
 	minus
 	star
 	slash
+	percent
 	equals
 	less
 	greater
@@ -36,6 +37,7 @@ enum TokenType as u8 {
 	minus_eq
 	star_eq
 	slash_eq
+	percent_eq
 	increment
 	decrement
 	lparen
@@ -73,6 +75,7 @@ fn toktype_from_delimiter(delimiter string) TokenType {
 		'-' {.minus}
 		'*' {.star}
 		'/' {.slash}
+		'%' {.percent}
 		'=' {.equals}
 		'<' {.less}
 		'>' {.greater}
@@ -88,6 +91,7 @@ fn toktype_from_delimiter(delimiter string) TokenType {
 		'-=' {.minus_eq}
 		'*=' {.star_eq}
 		'/=' {.slash_eq}
+		'%=' {.percent_eq}
 		'++' {.increment}
 		'--' {.decrement}
 		else {.unknown}
@@ -186,7 +190,7 @@ fn lex(input string) ?[]Token {
 				mut tok_str := input[right].ascii_str()
 				if right + 1 < input.len {
 					combined := input.substr(right, right + 2)
-					if combined in ['==', '>=', '<=', '!=', '+=', '-=', '*=', '/=', '++', '--'] {
+					if combined in ['==', '>=', '<=', '!=', '+=', '-=', '*=', '/=', '%=', '++', '--'] {
 						tok_str = combined
 						right++
 					}