BTW, how do you pass OpenType script tag to HarfBuzz?! On 13-03-18 03:15 PM, Khaled Hosny wrote: > The issue reported below seems to be a regression in 0.9.13, basically > ZWJ seems to be completely ignored, with 0.9.12 I get the desired > output. > > Regards, > Khaled > > ----- Forwarded message from Ian-Mathew Hornburg <[email protected]> ----- > > From: Ian-Mathew Hornburg <[email protected]> > To: [email protected] > Subject: [XeTeX] Incorrect Bengali ZWJ behavior and v2 script spec > Reply-To: Unicode-based TeX for Mac OS X and other platforms <[email protected]> > > I may have identified two possible bugs in 0.9999.0: the release notes > indicate that the version-2 OpenType Indic script tags are now supported, > and I’ve been testing various Bengali-script fonts with the git version of > XeTeX and a current install of TeX Live 2012 to check them for correct > shaping behavior. I’ve posted a MWE reproducing some examples from the > Microsoft standard here: [http://pastebin.com/mgAX8c7U]. > > Microsoft ships two Bengali fonts (Vrinda and Shonar Bangla; both v6.80) > with Windows 8 that support both the older (beng) and newer (bng2) Bengali > script specs. (Older versions of each are shipped with Windows 7 and other > Microsoft products.) The fonts behave correctly when using the beng script > feature, with the exception of a particular ZWJ sequence: the Microsoft > spec [https://www.microsoft.com/typography/OpenTypeDev/bengali/intro.htm] > says that the sequence of consonant-hasant-ZWJ-consonant should prevent a > ligature of the two consonants, then render a half-form of the first > consonant. XeTeX currently fails to suppress the ligature. > > ----- End forwarded message ----- > _______________________________________________ > HarfBuzz mailing list > [email protected] > http://lists.freedesktop.org/mailman/listinfo/harfbuzz >
-- behdad http://behdad.org/ _______________________________________________ HarfBuzz mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/harfbuzz
