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w3c / iip

Documenting gaps and requirements for support of Indic languages on the Web and in eBooks.
https://w3c.github.io/iip/
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Spans around partial orthographic syllables can't be styled #89

Open r12a opened 4 years ago

r12a commented 4 years ago

If you try to style part of a syllable by putting a span around the characters you want to style, the overall shape of the syllable is broken.

Here are a number of examples:

  1. Devanagari. If you put a span around the first two characters of the 3-character syllable स्तिठड (eg. in order to color or otherwise style it), the i vowel-sign no longer appears at the start of the word, but looks like it modifies the next character (ठ).
  2. Gujarati. If you put a span around the ન્ડ two characters of the 3-character syllable ન્ડિ in ઇન્ડિય (eg. in order to color or otherwise style it), the i vowel-sign no longer appears at the start of the word, but looks like it modifies the next character (ય).
  3. Bengali. If you put a span around the ব first character of the two character syllable বি in বিভাগের (eg. in order to color or otherwise style it), the vowel-sign no longer appears at the start of the word, but looks like incorrect inputting at the wrong place.
  4. Tamil. If you put a span around the ம first character of the two character syllable மொ in மொழி (eg. in order to color or otherwise style it), the half part of o vowel-sign no longer appears at the start of the word, but looks like incorrect inputting at the wrong place.

Apparently this requirement is a bit difficult to cater to as it requires the knowledge to be transferred by the font to the rendering engine about which part of the glyph is attributed to which code-point in storage. However, if it can be achieved, nothing like it.

r12a commented 4 years ago

The first comment in this issue contains text that will automatically appear in the Devanagari gap-analysis document as a subsection with the same title as this issue. Any edits made to that comment will be immediately available in the document. Proposals for changes or discussion of the content can be made in comments below this point.