- From: John Hudson <tiro@tiro.com>
- Date: Wed, 10 Jul 2013 11:32:12 -0700
- CC: public-i18n-indic@w3.org
On 10/07/13 6:55 AM, Richard Ishida wrote: > I put together some tests related to first-letter support. You can find > them, and results for several browsers at > http://www.w3.org/International/tests/html5/css3-selectors-first-letter/results-first-letter Thanks, Richard. These are very helpful tests. You write on the test site None of the browsers support selection of conjoined consonants. These are basic units in indic scripts, and all component characters need to be highlighted together, but this goes beyond the definition of a grapheme cluster in the Unicode Standard. It does? Perhaps because I'm coming at this from the font display and Indic glyph processing side, I'm used to thinking in terms of the graphic syllable (which does not always correspond to the linguistic syllable) as the core unit of Indian writing, and presumed that this corresponded to the grapheme cluster. Indeed, we regularly use the term cluster as a synonym for graphic syllable. Isolating the sequence of characters that make up a graphic syllable is a standard first step in Indic layout; in the OpenType model, this is performed by the external layout engine. It seems to me that the same models -- indeed, the same code? -- could be applied fairly easily to selecting 'first-letter' groups in browser support for CSS3 Selectors. JH
Received on Wednesday, 10 July 2013 18:32:45 UTC