From 0233c814ac717799b77a87904d68680a4dbfe1d3 Mon Sep 17 00:00:00 2001
From: Sandy Brownlee <sbr@cs.stir.ac.uk>
Date: Fri, 1 Jul 2022 17:04:00 +0100
Subject: [PATCH] Added some comments to scanner

---
 .../src/main/java/triangle/syntacticAnalyzer/Scanner.java     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Triangle.Compiler/src/main/java/triangle/syntacticAnalyzer/Scanner.java b/Triangle.Compiler/src/main/java/triangle/syntacticAnalyzer/Scanner.java
index 127b743..4da5ed5 100644
--- a/Triangle.Compiler/src/main/java/triangle/syntacticAnalyzer/Scanner.java
+++ b/Triangle.Compiler/src/main/java/triangle/syntacticAnalyzer/Scanner.java
@@ -63,6 +63,8 @@ public final class Scanner {
 
 	private void scanSeparator() {
 		switch (currentChar) {
+		
+		// comment
 		case '!': {
 			takeIt();
 			while ((currentChar != SourceFile.EOL) && (currentChar != SourceFile.EOT))
@@ -72,6 +74,7 @@ public final class Scanner {
 		}
 			break;
 
+		// whitespace
 		case ' ':
 		case '\n':
 		case '\r':
@@ -247,6 +250,7 @@ public final class Scanner {
 		int kind;
 
 		currentlyScanningToken = false;
+		// skip any whitespace or comments
 		while (currentChar == '!' || currentChar == ' ' || currentChar == '\n' || currentChar == '\r'
 				|| currentChar == '\t')
 			scanSeparator();