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Javascript API for the Unified Font Object

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With ufoJS you can load, manipulate and save font data in JavaScript. A UFO: Unified Font Object is a directory based file format representing font data in a human readable way. UFO is already supported by all major font development tools. ufoJS enables browser based font development tools that blend nicely into professional workflows.

ufoJS is tested with nodeJS and current Firefox and Chrome. You can run the unit tests with other browsers and see where it breaks and where it works.

Current State:

The GlyphSet and its dependencies are implemented and tested. This means you now have control over everything in the glyphs directory of your UFOv2/v3 and the UFOv3 layers (which is data wise the same as the glyphs directory). However, this is not stable yet. We will definitely find some bugs when using it.

Not in the box yet are the APIs for everything above the glyph layer level. This is the next big task.


Technology remarks

The starting point for ufoJS is porting RoboFab to JavaScript. Once this is done to a satisfactory point, we can start with optimizing the APIs and inner workings for new challenges. However, the first goal is to become useful and fully unit tested.

There are already significant differences to the RoboFab legacy:

There is no good Documentation or guide yet. You are welcome to start that and I would gladly support you. In the meantime your options are:

Further Reading

UFO Reference

keep this under your pillow ;-)

Code Input

ufoJS is based on porting the Python code of FontTools and RoboFab to JavaScript.

The files of the Python sources are referenced in the headers of the files of this project.

FontTools Author: Just van Rossum

RoboFab Authors: Erik van Blokland, Tal Leming, Just van Rossum


The Project itself uses an Modules/AsynchronousDefinition-Loader defined by commonJs and currently provided by RequireJS and RequireJS for nodeJs Author: James Burke

The Tests are driven by (an old version of) the D.O.H: Dojo Objective Harness Authors: Alex Russell, Pete Higgins, Dustin Machi, Jared Jurkiewicz

The implementation of the Synchronous/Asynchronous APIs is made with ObtainJS Author: Lasse Fister

Copyright (c) 2011, 2012, 2013, 2014, Lasse Fister lasse@graphicore.de, http://graphicore.de

You should have received a copy of the MIT License along with this program. If not, see http://www.opensource.org/licenses/mit-license.php