[parser] fix for decimal literals

storing decimals as strings, for the sake of reading and writing
(because of JS's numeric failings)

Author: alunny

lib/parser/pbxproj.js

@@ -180,7 +180,12 @@ NumberValue
   = DecimalValue / IntegerValue
 
 DecimalValue
-  = IntegerValue "." IntegerValue
+  = decimal:(IntegerValue "." IntegerValue)
+    { 
+        // store decimals as strings
+        // as JS doesn't differentiate bw strings and numbers
+        return decimal.join('')
+    }
 
 IntegerValue
   = !Alpha number:Digit+ !Alpha

lib/parser/pbxproj.pegjs

@@ -10,3 +10,11 @@ exports['should parse the build config section'] = function (test) {
     // if it gets this far it's worked
     test.done();
 }
+
+exports['should read a decimal value correctly'] = function (test) {
+    var xcbConfig = project.objects['XCBuildConfiguration'],
+        debugSettings = xcbConfig['1D6058950D05DD3E006BFB54'].buildSettings;
+
+    test.strictEqual(debugSettings['IPHONEOS_DEPLOYMENT_TARGET'], '3.0');
+    test.done();
+}