Hey, Something I quickly spotted:
""" "Ra,Halant" sequences that occur elsewhere in the syllable may take on a below-base form (called "Rakaar" in Devanagari and most other scripts, and called "Raphala" in Bengali). """ That should be Halant,Ra. On Tue, Jun 5, 2018, 7:43 AM Nathan Willis <[email protected]> wrote: > Hi everyone, > > I've been working on a set of specification-like documents that describe > how OpenType Layout works, specifically for shaping complex scripts. It's > not quite complete yet, but we'd appreciate any and all feedback that the > community can provide. > > The repository is here: > https://github.com/n8willis/opentype-shaping-documents/ > > As the resident README says, the starting points that we'd currently > suggest people look at are > > - The Indic scripts, which you can get to from here: > https://github.com/n8willis/opentype-shaping-documents/blob/master/opentype-shaping-indic-general.md > - The Arabic-and-related scripts (N'Ko, Syriac, Mongolian): > https://github.com/n8willis/opentype-shaping-documents/blob/master/opentype-shaping-arabic-general.md > - Hangul: > https://github.com/n8willis/opentype-shaping-documents/blob/master/opentype-shaping-hangul.md > > A couple of the others are more-or-less complete, although I'm waiting on > some question-loops to close with people I've privately been bugging with > my questions. That includes Myanmar and Tibetan. > > I would definitely stay away from the Thai/Lao doc, which is in major > churn, and Hebrew, which hopefully lands shortly. > > > In any case, the goal here is to bridge the gap left by Microsoft's > "Developing OpenType fonts for Script X" pages, which only offer some > details aimed at font designers, and the OpenType/Unicode specs. > > It's targeting developers who have to implement script shaping. It's based > primarily on the HarfBuzz codebase, plus whatever is known about Uniscribe, > plus dissecting a lot of fonts. If there's anything that is wrong, or is > unclear, or is missing, please open an issue or a PR or just tell me! > > That goes for the illustrations as well as the text; sometimes it can be > tough to tease out an illustration that highlights one specific GSUB > feature, when in reality they are meant to work together. > > Your feedback and help is appreciated! > > Nate > > -- > nathan.p.willis > [email protected] <http://identi.ca/n8> > _______________________________________________ > HarfBuzz mailing list > [email protected] > https://lists.freedesktop.org/mailman/listinfo/harfbuzz >
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