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scribble-math/metrics/README.md
Martin von Gagern b290d4ad76 Switch from fontforge to fonttools 
The dependencies of fonttools are much lighter than fontforge, and since all
we need are some metrics, fonttools is very much up to that task.

This addresses issue #288.
2015-07-10 14:32:02 +02:00

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How to generate new metrics

There are several requirements for generating the metrics used by KaTeX.

  • You need to have an installation of TeX which supports kpathsea. You can check this by running tex --version, and seeing if it has a line that looks like

    kpathsea version 6.2.0

  • You need the JSON module for perl. You can install this either from CPAN (possibly using the cpan command line tool) or with your package manager.

  • You need the python module fonttools. You can install this either from PyPi (using easy_install or pip) or with your package manager.

Once you have these things, run

make metrics

which should generate new metrics and place them into fontMetricsData.json. You're done!