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My name is David Foster. Check out the cool software I’ve written.

My articles may also be of interest.

Featured Projects

HandBrake Subtitles ☆

Extends the popular HandBrake ripping and transcoding tool to enable processing subtitles from files, including the SSA subtitles found commonly in anime.

RDiscount ☆

Converts Markdown text to HTML, in Ruby. Includes many useful Markdown extensions.

Uhuru ☆

A translation assistant for reading Japanese text quickly.

Featured Articles

• Mar 25, 2017 » How to Design Large Programs with Abstraction and Encapsulation ☆
• Apr 02, 2016 » Roles on Software Teams ☆
• Sep 13, 2015 » State of the Union in Programming Languages (2015) ☆
• Dec 20, 2014 » Spectrum of Languages by Hardware Distance ☆
• May 11, 2013 » Programming for Perfectionists (P4P): A Book Outline ☆
• Feb 20, 2013 » Visual Guide to Programming Language Properties ☆
• Jan 15, 2013 » Things I Wish I Knew Before Working in Industry ☆
• Jan 08, 2013 » Programming is Fun. But What Matters is Solving a Real Problem. ☆

Recent Articles

• Jun 02, 2018 » Performance Testing
• Apr 07, 2018 » Unsound type systems are still useful
• Jan 20, 2018 » How to implement a large software feature
• Dec 21, 2017 » Power in Relationships
• Dec 18, 2017 » How to annotate a new recipe
• Dec 09, 2017 » Learning to cook better: My journey
• Apr 09, 2017 » The Trouble with Global Variables
• Mar 25, 2017 » How to Design Large Programs with Abstraction and Encapsulation ☆
• Aug 21, 2016 » How to upload from OS X Photos to Facebook (2016)
• May 21, 2016 » Glue in Functional Programming Languages
• May 17, 2016 » Abandonment vs. Unchecked Exceptions for Error Handling
• May 02, 2016 » A Programmer's Guide to Practical Hats
• Apr 22, 2016 » Notes on “The Clean Coder”
• Apr 02, 2016 » Roles on Software Teams ☆
• Sep 13, 2015 » State of the Union in Programming Languages (2015) ☆
• Aug 08, 2015 » Algorithms 101 for Software Applications
• Jun 27, 2015 » Unicode 101
• Apr 26, 2015 » Optional Structural Static Typing in Python
• Mar 23, 2015 » Block Distracting Websites
• Mar 14, 2015 » Semantic Versioning vs. Romantic Versioning
• Feb 27, 2015 » Proof terms in Idris
• Dec 20, 2014 » Spectrum of Languages by Hardware Distance ☆
• Nov 22, 2014 » Error handling styles in programming
• Nov 08, 2014 » Learning Japanese - the first 6 months
• Jun 24, 2014 » Submitting a Python App to the Mac App Store
• May 10, 2014 » Reading Japanese text from images
• Feb 17, 2014 » Agda: Second Impressions
• Feb 02, 2014 » What is Color?
• Jan 24, 2014 » Agda: First Impressions
• Nov 25, 2013 » How to move notes from an iPhone to an email account

See all articles…

Miscellaneous

Much information related to my activities prior to 2010 can also be found on my old site.