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Where is the source code or executable for Knuth's metafont program? I cannot find it anywhere!

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up vote 10 down vote accepted

The binary should be part of your TeX distribution; its name is mf. The source is available at: CTAN

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To be even more specific, it is here, in the file called "mf.web". It is 23k lines of pascal mixed with heavy documentation that is something like DOXYGEN from the 70's.

If you're running a debian-based distribution the source is also in the "texlive-bin" source package in the "/texk/web2c/mf.web" subdirectory.

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Like TeX, MetaFont is written in WEB. I'm not sure the comaprison with Doxygen really gets the WEB approach across at all! – Joseph Wright Dec 5 '14 at 17:21

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