Custom stingify functions affect current instance only

Author: oozcitak

1.coffee

@@ -0,0 +1,6 @@
+x = require './src/index.coffee'
+
+xml = x.create('hello')
+  .ele('element')
+  .ins('xml-stylesheet', 'type="text/xsl" href="style.xsl"')
+console.log xml.end({pretty:true})

src/XMLStringifier.coffee

@@ -9,7 +9,7 @@ class XMLStringifier
   constructor: (options) ->
     @allowSurrogateChars = options?.allowSurrogateChars
     for own key, value of options?.stringify or {}
-      XMLStringifier::[key] = value
+      @[key] = value
 
   # Defaults
   eleName: (val) ->

test/stringify.coffee

@@ -0,0 +1,25 @@
+vows = require 'vows'
+assert = require 'assert'
+
+xmlbuilder = require '../src/index.coffee'
+
+vows
+    .describe('Stringify')
+    .addBatch
+        'Custom function':
+            topic: () ->
+                addns = (val) ->
+                    'my:' + val
+
+                xmlbuilder.create('test7', { headless: true, stringify: { eleName: addns } })
+                    .ele('nodes')
+                    .ele('node', '1').up()
+                    .ele('node', '2').up()
+                    .ele('node', '3')
+
+            'resulting XML': (topic) ->
+                xml = '<my:test7><my:nodes><my:node>1</my:node><my:node>2</my:node><my:node>3</my:node></my:nodes></my:test7>'
+                assert.strictEqual topic.end(), xml
+
+    .export(module)
+