[cypher mode] Handle unbalanced strings

Author: pe4cey

mode/cypher/cypher.js

@@ -20,8 +20,12 @@
   CodeMirror.defineMode("cypher", function(config) {
     var tokenBase = function(stream/*, state*/) {
       var ch = stream.next();
-      if (ch === "\"" || ch === "'") {
-        stream.match(/.+?["']/);
+      if (ch === "\"") {
+        stream.match(/.+?["]/);
+        return "string";
+      }
+      if (ch === "'") {
+        stream.match(/.+?[']/);
         return "string";
       }
       if (/[{}\(\),\.;\[\]]/.test(ch)) {

mode/cypher/test.js

@@ -0,0 +1,19 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({tabSize: 4, indentUnit: 2}, "cypher");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT("unbalancedDoubledQuotedString",
+      "[string \"a'b\"][variable c]");
+
+  MT("unbalancedSingleQuotedString",
+      "[string 'a\"b'][variable c]");
+
+  MT("doubleQuotedString",
+      "[string \"a\"][variable b]");
+
+  MT("singleQuotedString",
+      "[string 'a'][variable b]");
+ })();

test/index.html

@@ -20,6 +20,7 @@
 <script src="../mode/css/css.js"></script>
 <script src="../mode/clike/clike.js"></script>
 <!-- clike must be after css or vim and sublime tests will fail -->
+<script src="../mode/cypher/cypher.js"></script>
 <script src="../mode/gfm/gfm.js"></script>
 <script src="../mode/haml/haml.js"></script>
 <script src="../mode/htmlmixed/htmlmixed.js"></script>
@@ -109,6 +110,7 @@ <h2>Test Suite</h2>
     <script src="../mode/css/gss_test.js"></script>
     <script src="../mode/css/scss_test.js"></script>
     <script src="../mode/css/less_test.js"></script>
+    <script src="../mode/cypher/test.js"></script>
     <script src="../mode/gfm/test.js"></script>
     <script src="../mode/haml/test.js"></script>
     <script src="../mode/javascript/test.js"></script>