Released by  

Yesterday we announced the GML 1.0 spec, a canonical reference for what constitutes Graffiti Markup Language. Today I’m pleased to announce the GML Syntax Validator, a tool to help developers working on new GML applications debug & optimize their Graffiti Markup Language files. Just say “NO!” to bad GML.

A “Validate This” button is now available in the sidebar of every 000000book tag page, or you can upload GML directly via file, form, or a simple API. Check out some example usage.

This is a beta release and bugs/feedback are much appreciated — please email me & Evan or hit up your friendly neighborhood GML mailing list

What does it validate?

  • overall document syntax (valid XML)
  • presence of all required GML tags (bottom of the page – drawing, stroke, tag, pt, x/y)
  • verifies point data falls between 0.0 and 1.0 values
  • client description (info about your app)
  • your <environment> description (e.g. <up> vector & <screenBounds>, since all screens are different)
  • recommendations — e.g. adding a consistent <uniqueKey> value, like an iPhone UUID or hashed computer MAC address. This allows users to enable 00000book device pairing for tags uploaded from your app

Tags: , ,

Posted on September 2, 2010


The expressions published in this site are all in the public domain. You may enjoy, use, modify, snipe about and republish all F.A.T. media and technologies as you see fit.