allow periods in unquoted property names

fixes NativeScript#16

Author: alunny

lib/parser/pbxproj.js

@@ -170,7 +170,7 @@ CommentedArrayEntry
  *  Identifiers and Values
  */
 Identifier
-  = id:[A-Za-z0-9_]+ { return id.join('') }
+  = id:[A-Za-z0-9_.]+ { return id.join('') }
   / QuotedString
 
 Value

lib/parser/pbxproj.pegjs

@@ -0,0 +1,15 @@
+var PEG = require('pegjs'),
+    fs = require('fs'),
+    pbx = fs.readFileSync('test/parser/projects/dots-in-names.pbxproj', 'utf-8'),
+    grammar = fs.readFileSync('lib/parser/pbxproj.pegjs', 'utf-8'),
+    parser = PEG.buildParser(grammar),
+    rawProj = parser.parse(pbx),
+    project = rawProj.project;
+
+exports['should parse com.apple.BackgroundModes'] = function (test) {
+    var targets = project.attributes.TargetAttributes['1D6058900D05DD3D006BFB54'],
+        backgroundModes = targets.SystemCapabilities['com.apple.BackgroundModes'];
+
+    test.deepEqual(backgroundModes, {enabled: 1});
+    test.done()
+}

test/parser/dotsInNames.js

@@ -0,0 +1,17 @@
+// !$*UTF8*$!
+{
+    isa = PBXProject;
+    attributes = {
+        LastUpgradeCheck = 500;
+        TargetAttributes = {
+            1D6058900D05DD3D006BFB54 = {
+                DevelopmentTeam = 9KM9BSKFZ3;
+                SystemCapabilities = {
+                    com.apple.BackgroundModes = {
+                        enabled = 1;
+                    };
+                };
+            };
+        };
+    };
+}