feat(select): allow multiline ng-options

This patch allows the ng-options value of a <select> element to span
multiple lines, which would previously throw an error when used with filters.

Closes angular#5602

Author: jrupac

src/ng/directive/select.js

@@ -129,7 +129,7 @@ var ngOptionsDirective = valueFn({ terminal: true });
 // jshint maxlen: false
 var selectDirective = ['$compile', '$parse', function($compile,   $parse) {
                          //0000111110000000000022220000000000000000000000333300000000000000444444444444444000000000555555555555555000000066666666666666600000000000000007777000000000000000000088888
-  var NG_OPTIONS_REGEXP = /^\s*(.*?)(?:\s+as\s+(.*?))?(?:\s+group\s+by\s+(.*))?\s+for\s+(?:([\$\w][\$\w]*)|(?:\(\s*([\$\w][\$\w]*)\s*,\s*([\$\w][\$\w]*)\s*\)))\s+in\s+(.*?)(?:\s+track\s+by\s+(.*?))?$/,
+  var NG_OPTIONS_REGEXP = /^\s*([\s\S]+?)(?:\s+as\s+([\s\S]+?))?(?:\s+group\s+by\s+([\s\S]+?))?\s+for\s+(?:([\$\w][\$\w]*)|(?:\(\s*([\$\w][\$\w]*)\s*,\s*([\$\w][\$\w]*)\s*\)))\s+in\s+([\s\S]+?)(?:\s+track\s+by\s+([\s\S]+?))?$/,
       nullModelCtrl = {$setViewValue: noop};
 // jshint maxlen: 100
 

test/ng/directive/selectSpec.js

@@ -708,6 +708,31 @@ describe('select', function() {
       expect(sortedHtml(options[0])).toEqual('<option value="regularProperty">visible</option>');
     });
 
+    it('should allow expressions over multiple lines', function() {
+      scope.isNotFoo = function(item) {
+        return item.name !== 'Foo';
+      };
+
+      createSelect({
+        'ng-options': 'key.id\n' +
+          'for key in object\n' +
+          '| filter:isNotFoo',
+        'ng-model': 'selected'
+      });
+
+      scope.$apply(function() {
+        scope.object = [{'id': 1, 'name': 'Foo'},
+                        {'id': 2, 'name': 'Bar'},
+                        {'id': 3, 'name': 'Baz'}];
+        scope.selected = scope.object[0];
+      });
+
+      var options = element.find('option');
+      expect(options.length).toEqual(3);
+      expect(sortedHtml(options[1])).toEqual('<option value="0">2</option>');
+      expect(sortedHtml(options[2])).toEqual('<option value="1">3</option>');
+    });
+
     describe('binding', function() {
 
       it('should bind to scope value', function() {