Ignore comments

.travis.yml

@@ -1,3 +1,6 @@
 language: dart
+dart:
+  - dev
+  - stable
 script:
-  - travis.sh
+  - bash -ex travis.sh

graphql_parser/lib/src/language/lexer.dart

@@ -3,6 +3,7 @@ import 'syntax_error.dart';
 import 'token.dart';
 import 'token_type.dart';
 
+final RegExp _comment = RegExp(r'#[^\n]*');
 final RegExp _whitespace = new RegExp('[ \t\n\r]+');
 final RegExp _boolean = new RegExp(r'true|false');
 final RegExp _number = new RegExp(r'-?[0-9]+(\.[0-9]+)?(E|e(\+|-)?[0-9]+)?');
@@ -41,7 +42,7 @@ List<Token> scan(String text) {
   while (!scanner.isDone) {
     List<Token> potential = [];
 
-    if (scanner.scan(_whitespace)) continue;
+    if (scanner.scan(_comment) || scanner.scan(_whitespace)) continue;
 
     for (var pattern in _patterns.keys) {
       if (scanner.matches(pattern)) {

graphql_parser/test/comment_test.dart

@@ -0,0 +1,16 @@
+import 'package:graphql_parser/graphql_parser.dart';
+import 'package:test/test.dart';
+
+void main() {
+  test('heeds comments', () {
+    var tokens = scan('''
+    # Hello
+    {
+    # Goodbye
+    }
+    # Bonjour
+    ''');
+
+    expect(tokens, hasLength(2));
+  });
+}

travis.sh

@@ -1,4 +1,2 @@
 #!/usr/bin/env bash
-set -e
-set -x
 cd graphql_parser && pub get && pub run test -j2 && cd..