Section G.1 MathJax and Speech Rule Engine
MathJax is packaged as a
node.js program. A component of MathJax is Speech Rule Engine (SRE), which converts LaTeX to text that represents a spoken version of the mathematics, and to Nemeth braille, a braille code for expressing mathematics.Any
node.js script requires installing Node. See Appendix F for instructions on doing so. Once Node is installed, you can use the following instructions to complete the installation of MathJax and the SRE.Follow the directions here exactly. Do not free-style and think some modification will have a better or identical result. In a terminal, set your working directory with
cd /path/to/mathbook/script/mjsre
Install both packages at the same time with a single command:
./update-sre
It is possible you will need to make this simple script executable. On Unix-style systems (Linux, Mac OS) this can be done with the
chmod command. As this is a bash script, Windows users must use Window’s Sybsystem for Linux or examine the contents of the script to run the commands manually.The
update-sre script is supplied by PreTeXt. It will create a file and a directory:/path/to/mathbook/script/mjsre/package-lock.json /path/to/mathbook/script/mjsre/node_modules
Neither will be tracked by
git. Since SRE changes faster than MathJax, this will replace MathJax’s expectation for a version of SRE with a potentially newer version. So do not be alarmed if it appears MathJax is missing a dependency, that is intentional.Now you have copies of MathJax and SRE that can be used by the
pretext/pretext script to process mathematics offline into useful formats for conversions to EPUB, Kindle, and braille.
