On Mon, Apr 04, 2016 at 01:02:56PM -0700, Behdad Esfahbod wrote: > On Mon, Apr 4, 2016 at 12:45 PM, Khaled Hosny <[email protected]> wrote: > > > On Tue, Mar 22, 2016 at 10:52:43PM +0000, Jamie Dale wrote: > > > Hey all, > > > > > > I've spent today fixing some issues in our editable text controls, mostly > > > relating to issues caused by the difference between characters and > > grapheme > > > clusters. > > > > > > I've sorted most of my issues now, but I'm still having an issue the لا > > > ligature in Arabic. > > > > > > My current code that performs picking on text, or applies formatting to > > > text that spans a ligature, assumes that any ligature can be split into > > its > > > component grapheme clusters, however this assumption does not hold true > > for > > > that ligature as it cannot be split. > > > > > > Does HarfBuzz have a way to identify these mandatory ligatures, or > > failing > > > that, how do people generally deal with this sort of thing? I have ICU > > > available if it has anything that can help? > > > > You just don’t try to identify mandatory ligatures. What we are doing in > > Scribus (that bit of code is not published yet) is to treat all > > ligatures as unbreakable. You simply find how many characters in a > > > > s/characters/Unicode graphemes/
Right. Regards, Khaled _______________________________________________ HarfBuzz mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/harfbuzz
