From 9e1ef93990273f6993ab62e9cb5799803e74c845 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petar=20Kapri=C5=A1?= <kayprish@bonsai.cool>
Date: Fri, 17 Jan 2025 20:47:03 +0100
Subject: [PATCH] Add modulo operators to lexer

Tokens MODULO and SLASH_MODULO are going to represent the modulo and
fmod operations on integers and floats, or return a pair with the
divisor and the modulo, respectively.
---
 pj1-go/lexer/lexer.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pj1-go/lexer/lexer.go b/pj1-go/lexer/lexer.go
index da32f2a..a0caf04 100644
--- a/pj1-go/lexer/lexer.go
+++ b/pj1-go/lexer/lexer.go
@@ -37,6 +37,8 @@ const (
 	SLASH
 	SLASH_DOT
 	SLASH_UNDERSCORE
+	SLASH_MODULO
+	MODULO
 
 	// Literals
 	IDENTIFIER
@@ -179,6 +181,8 @@ func (l *Lexer) scanToken() {
 		} else {
 			l.addSimpleToken(GREATER)
 		}
+	case '%':
+		l.addSimpleToken(MODULO)
 	case '/':
 		if l.match('/') {
 			// A comment goes until the end of the line
@@ -211,6 +215,8 @@ func (l *Lexer) scanToken() {
 			l.addSimpleToken(SLASH_DOT)
 		} else if l.match('_') {
 			l.addSimpleToken(SLASH_UNDERSCORE)
+		} else if l.match('%') {
+			l.addSimpleToken(SLASH_MODULO)
 		} else {
 			l.addSimpleToken(SLASH)
 		}