web2js
thatjdanisso.cool
web2js | thatjdanisso.cool | |
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2 | 1 | |
107 | 15 | |
- | - | |
1.8 | 0.0 | |
over 2 years ago | about 1 year ago | |
xBase | JavaScript | |
GNU General Public License v3.0 or later | MIT License |
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web2js
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The JavaScript Ecosystem Is Delightfully Weird
When I last looked, it seemed like WASM blobs just take arrays of numbers and return arrays of numbers. No objects, strings, or DOM elements, so I think it'd be tough to do web dev in wasm as it stands. And you need javascript glue if you want anything in the way of side effects.
There is, however, quite a bit you can do in it. TeX has been compiled to wasm[1], it's about 600kb uncompressed 90k compressed (the memory image with latex loaded is about 6MB compressed though - latex is a beast). I think anything computationally intensive would be a good candidate for wasm (it has int64).
1: https://github.com/kisonecat/web2js
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Math Rendering Is Wrong
I implemented a TeX engine in WebAssembly so you really can run TeX in the browser. You can see a demo of this at https://tex.rossprogram.org/ and at https://github.com/kisonecat/web2js you can find a Pascal compiler that targets WebAssembly which can compile Knuth's TeX. Interesting primitives like \directjs are also implemented, so you can execute javascript from inside TeX. The rendering is handled with https://github.com/kisonecat/dvi2html for which I finally fixed some font problems.
To make it relatively fast, the TeX engine gets snapshotted and shipped to the browser with much of TeXlive already loaded. So even things like TikZ work reasonably well. There is of course a lot more to do! The plan is to convert ximera.osu.edu to this new backend by the fall.
thatjdanisso.cool
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Math Rendering Is Wrong
I apologize if this is pedantic but you can absolutely "render" KaTeX on the server-side: https://github.com/jdan/thatjdanisso.cool/blob/902f1c421b02b...
MathJax does not support this because, IIRC, it runs layout calculations in the browser whereas KaTeX passes it off to CSS.
If your argument is then that layout calculations should _also_ happen on the server then... I'm not sold and that would be a critique of web browsers and not math rendering.
What are some alternatives?
dvi2html - Device independent (DVI) file format parsing with node
latex2mathml - Pure Python library for LaTeX to MathML conversion
KaTeX - Fast math typesetting for the web.
remark - markdown processor powered by plugins part of the @unifiedjs collective
js-in-css-rt - JS-in-CSS runtime
qubyte-codes - My personal site.
quickjs - Public repository of the QuickJS Javascript Engine.
javascript - Javascript client