- From: Peter Moulder <peter.moulder@monash.edu>
- Date: Tue, 04 Dec 2012 20:36:23 +1100
- To: www-style@w3.org
On Mon, Dec 03, 2012 at 10:57:15PM -0800, John Daggett wrote: > Why does justification affect glyph selection? Because of letter > spacing affecting ligature formation? (Another example would be OpenType 'jalt' stuff, i.e. selecting alternate glyphs with different widths to help the line's text to fill the available "width".) > This is a bad idea, it creates > a feedback loop within layout operations. I don't know how web browsers would end up choosing to implement this, but FWIW it doesn't absolutely have to involve a loop as such: the approach I'm more familiar with (in the context of optimal line breaking) is that the various possibilities for altering the apparent width of a line (glyph selection possibilities, word spacing, letter spacing, kashida, etc.) influence the choice of line break, and then glyphs etc. are chosen according to how much that line break requires the line's text to stretch or shrink. pjrm.
Received on Tuesday, 4 December 2012 09:36:50 UTC