KeenType
Drachennest
KeenType | Drachennest | |
---|---|---|
13 | 2 | |
104 | 111 | |
- | - | |
10.0 | 10.0 | |
8 months ago | over 1 year ago | |
Java | C++ | |
GNU General Public License v3.0 or later | Boost Software License 1.0 |
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KeenType
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LaTeX3: Programming in LaTeX with Ease
> modern languages like Markdown
Markdown was created in 2004. From the creator:
> ... the single biggest source of inspiration for Markdown’s syntax is the format of plain text email.
Email goes back to 1965, though I suspect Markdown's influence stems from the more widely adopted email usage from the 1990s.
> Part of LaTeX's success was the absolutely beautiful documents it can make with nothing but a personal computer.
I'd say that was TeX's success, with LaTeX bolted on later to greatly improve TeX's extensibility. Keep in mind, there are a number of TeX-centric implementations beyond LaTeX. For example, my fork of NTS, called KeenType, is a pure Java version of TeX that can typeset beautifully and has at its core Knuth's original TeX files.
https://github.com/DaveJarvis/KeenType/tree/main/tex/src/mai...
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Expanding TeX's \Newif (2021)
My port of the New Typesetting System (NTS), called KeenType, whittles down the Java-based implementation to a few of Knuth's files. Namely, "plain.tex" and "hyphen.tex":
https://github.com/DaveJarvis/KeenType/tree/main/tex/src/mai...
Getting familiar with the fonts required understanding the difference between font metrics (TFM files) and the fonts themselves. To make matters a little less straightforward, Knuth created a special character mapping for indexes into the fonts. It was not easy to find a font that mapped those glyphs exactly. The closest font was BaKoMa:
https://github.com/DaveJarvis/KeenType/tree/main/tex/src/mai...
This required hard-coding a mapping between Knuth's code points and the actual code points in the target font:
https://github.com/DaveJarvis/KeenType/blob/989dbe26f68eda75...
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The fastest math typesetting library for the web
A while ago I optimized KeenType, which although not JavaScript-based, generates SVG images, which can be embedded into web pages.
https://github.com/DaveJarvis/keentype
The following tutorial shows the real-time rendering speed of KeenType within my text editor, KeenWrite:
https://youtu.be/vgyYXwwF_lc?list=PLB-WIt1cZYLm1MMx2FBG9KWzP...
- Reducing code size in (Rust) librsvg by removing an unnecessary generic struct
- KeenType: Pure Java typesetting system
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Different algorithms for converting binary to decimal floating-point numbers
In Java, many number-to-string implementations use NumberFormat. This is abysmally slow if the problem domain doesn't require internationalization, which is the case for machine-readable file formats, such as SVG. When I performance tested JMathTeX for rendering TeX, the bottleneck for converting TeX into SVG elements was JFreeSVG's use of NumberFormat[0]. Replacing NumberFormat with RyuDouble doubled the throughput[1]. (Reusing a StringBuilder for to concatenate strings yielded another doubling.)
For KeenType[2], a fork of the New Typesetting System (and more complete TeX implementation than JMathTeX), I added an SVG generator that converts numbers to string using a StackOverflow answer[3], instead of using Ryu[4]. The performance was even better and the algorithm vastly simpler.
Knuth was right: measure, then optimize.
[0]: https://github.com/jfree/jfreesvg
[1]: https://github.com/jfree/jfreesvg/pull/30
[2]: https://github.com/DaveJarvis/KeenType
[3]: https://stackoverflow.com/a/10554128/59087
[4]: https://github.com/DaveJarvis/KeenType/blob/fef005579021f394...
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KeenWrite 3.2.0
KeenType, a modernized and optimized NTS fork, replaces KeenTeX.
Drachennest
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