I agree, this feature should be enabled by default. Thanks for all answers and remarks! Carsten
Am Donnerstag, den 16.09.2010, 15:41 +1000 schrieb David Purton: > Hi Carsten, > > On Tue, Sep 14, 2010 at 02:50:38PM +0100, Carsten Ziegert wrote: > > Thanks, David, that works well with the Contextuals in SBL Hebrew. > > > > Actually, it does not work with Cardo, xelatex says: > > Package fontspec Warning: > > OpenType feature 'Contextuals=Alternate' (+calt) not available > > for font "Cardo/ICU", > > with script 'Hebrew', > > and language 'Default'. > > > > So I conclude that it has to be defined in the font. On the other hand, > > why does it work with Ezra SIL "out of the box"? maybe someone can > > enlighten me: > > There are fonts using contextuals by default, fonts which require an > > option for fontspec and fonts which do not use contextuals at all. Is > > this right? > > hum! You can tell whether a font supports contextual alternates with > otfinfo. e.g., > > $ otfinfo --script=hebr -f SBL_Hbrw.ttf > calt Contextual Alternates > ccmp Glyph Composition/Decomposition > jalt Justification Alternates > kern Kerning > mark Mark Positioning > rlig Required Ligatures > salt Stylistic Alternates > ss01 Stylistic Set 1 > > I don't have Cardo, but Ezra SIL only lists calt and ccmp. Perhaps it > uses some other method for its layout (guess)? > > I confess that it is not clear to me which OTF features are > automatically enabled for a given font, and it was some time before I > realised I needed to turn on calt for SBL Hebrew. This does seem like a > feature that should be enabled by default though. And I only sort of > understand what jalt does (It is hard to find info on the net :( ) So I > don't know if I should enable this or not (or even if it is supported). > > cheers > > David > > > -------------------------------------------------- > Subscriptions, Archive, and List information, etc.: > http://tug.org/mailman/listinfo/xetex -- Carsten Ziegert Association SIL / Chad mobile: +235 63.78.58.00 skype : carstenzi http://www.sil.org -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex
