From 7b56e49af685471ce5cae6f3521536f8f7d39a16 Mon Sep 17 00:00:00 2001
From: Anmol Gautam <tarptaeya@gmail.com>
Date: Thu, 11 Jul 2019 23:29:44 +0530
Subject: [PATCH] added comments

---
 examples/comment.truck | 7 +++++++
 truck/lexer.py         | 8 ++++++++
 vim/syntax/truck.vim   | 8 ++++++--
 3 files changed, 21 insertions(+), 2 deletions(-)
 create mode 100644 examples/comment.truck

diff --git a/examples/comment.truck b/examples/comment.truck
new file mode 100644
index 0000000..a814cfe
--- /dev/null
+++ b/examples/comment.truck
@@ -0,0 +1,7 @@
+/* this is a comment */
+
+/*
+ * but comments cannot be nested 
+ */
+
+println(/* value 1 */ 10 + /* value 2 */ 20)
diff --git a/truck/lexer.py b/truck/lexer.py
index 8223c1d..c1bf86b 100644
--- a/truck/lexer.py
+++ b/truck/lexer.py
@@ -36,6 +36,14 @@ def next(self):
 
         current = self.source[self.index]
 
+        if current == '/' and self.source[self.index + 1] == '*':
+            self.index += 2
+            while not (current == '*' and self.source[self.index + 1] == '/'):
+                self.index += 1
+                current = self.source[self.index]
+            self.index += 2
+            return self.next()
+
         if current in self.symbols:
             self.value = current
             self.index += 1
diff --git a/vim/syntax/truck.vim b/vim/syntax/truck.vim
index bbb9c90..d0358ed 100644
--- a/vim/syntax/truck.vim
+++ b/vim/syntax/truck.vim
@@ -33,9 +33,13 @@ syntax match truckOpreator "\v\*"
 syntax match truckOpreator "\v\/"
 highlight link truckOperator Operator
 
-syntax match truckString "\v\".*\""
-syntax match truckString "\v\'.*\'"
+syntax region truckString start=/\v"/ skip=/\v\\./ end=/\v"/
+syntax region truckString start=/\v'/ skip=/\v\\./ end=/\v'/
 highlight link truckString String
 
 syntax match truckNumber "\v\d+"
 highlight link truckNumber Number
+
+syntax region truckComment start=/\v\/\*/ end=/\v\*\//
+highlight link truckComment Comment
+