Placing tone marks

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Azamat Kodzoev
Azamat Kodzoev Posts: 8
in Font Technology
I'm making a typeface with an opportunity to place a tone mark for stress on syllable. In cyrillics it's usually an acute, but what glyph exactly acutecmb or acutetonemark? Also how that will work with caps and lowercases? is there a need for a feature for that? Is there usual practices?

Thank you for any response in advance.

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  • Azamat Kodzoev
    Azamat Kodzoev Posts: 8
    Denis Moyogo Jacquerye said:
    I’d recommend using acutecmb instead of acutetonemark.
    The characters U+0341 acutetonemark will be normalized to U+0301 acutecmb by some text processing systems anyway since Unicode defines U+0341 as canonically equivalent to U+0301. U+0341 acutetonemark really doesn’t have much use in practice. Historically is has been encoded for Vietnamese but there is no need for a distinction. If you have it either make it behave like U+0301 or double-encode acutecmb as both.

    You’ll need an acutecmb.cap and a ccmp or calt feature with a lookup that substitutes acutecmb by acutecmb.cap after an uppercase (and also an uppercase and a mark below if you want to support that scenario).



    Thanks a lot! That is exactly what I needed!
  • Azamat Kodzoev
    Azamat Kodzoev Posts: 8
    Denis Moyogo Jacquerye said:
    I’d recommend using acutecmb instead of acutetonemark.
    The characters U+0341 acutetonemark will be normalized to U+0301 acutecmb by some text processing systems anyway since Unicode defines U+0341 as canonically equivalent to U+0301. U+0341 acutetonemark really doesn’t have much use in practice. Historically is has been encoded for Vietnamese but there is no need for a distinction. If you have it either make it behave like U+0301 or double-encode acutecmb as both.

    You’ll need an acutecmb.cap and a ccmp or calt feature with a lookup that substitutes acutecmb by acutecmb.cap after an uppercase (and also an uppercase and a mark below if you want to support that scenario).


    Additional question acutecmb ment to be kerned with letters or is it must be made with anchors (hypothesising)? Or maybe I created it wrongly — [zero width] [negative left metric] [positive right metric]
  • Thomas Phinney
    Thomas Phinney Posts: 3,015
    Combining marks such as acutecmb are positioned with anchors, rather than kerning.

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