Re: [NTG-context] copy/paste text broken with certain ligatures
On Sat, 16 Apr 2016, Hans Hagen wrote: On 4/15/2016 1:31 PM, Ulrike Fischer wrote: Am Fri, 15 Apr 2016 00:24:26 +0200 schrieb Hans Hagen: On 4/14/2016 3:47 PM, Brian R. Landy wrote: Hi, sometime between version 2015.08.05 and 2016.04.10 the handling of certain ligatures changed (sorry, I don't have intermediate versions to test with). The issue is the ligatures no longer copy/paste as the original two characters, which also breaks text searched of the pdf. Instead they copy as a single glyph. I'm seeing the problem with "ti" and "fj", while others like "ffi", "fi", and "ff" are fine in both versions. not all pdf viewers can do that well, unless it's broken, context outputs the tounicode vectors needed for it I can't copy the two ligatures either (in Adobe Reader DC), but with the equivalent latex example (TL2016 pretest) it works fine. So imho it is not a viewer problem. i looked into it and it's two things combined ... (1) when we explicitly pass tounicodes luatex mistakenly falls back to the index (a next release repairs this) (2) this happens here because calibri lacks the information (no names to deduce ligature from) .. so, i now have some extra heuristics in the font loader that get them from the gsub features Thank you Hans, this worked perfectly. I appreciate your help with this! (and thanks, too, for fixing the dash issue I raised recently). Best regards, Brian ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
Re: [NTG-context] copy/paste text broken with certain ligatures
On 4/15/2016 1:31 PM, Ulrike Fischer wrote: Am Fri, 15 Apr 2016 00:24:26 +0200 schrieb Hans Hagen: On 4/14/2016 3:47 PM, Brian R. Landy wrote: Hi, sometime between version 2015.08.05 and 2016.04.10 the handling of certain ligatures changed (sorry, I don't have intermediate versions to test with). The issue is the ligatures no longer copy/paste as the original two characters, which also breaks text searched of the pdf. Instead they copy as a single glyph. I'm seeing the problem with "ti" and "fj", while others like "ffi", "fi", and "ff" are fine in both versions. not all pdf viewers can do that well, unless it's broken, context outputs the tounicode vectors needed for it I can't copy the two ligatures either (in Adobe Reader DC), but with the equivalent latex example (TL2016 pretest) it works fine. So imho it is not a viewer problem. i looked into it and it's two things combined ... (1) when we explicitly pass tounicodes luatex mistakenly falls back to the index (a next release repairs this) (2) this happens here because calibri lacks the information (no names to deduce ligature from) .. so, i now have some extra heuristics in the font loader that get them from the gsub features Hans - Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl - ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
Re: [NTG-context] copy/paste text broken with certain ligatures
Am Fri, 15 Apr 2016 00:24:26 +0200 schrieb Hans Hagen: > On 4/14/2016 3:47 PM, Brian R. Landy wrote: >> Hi, sometime between version 2015.08.05 and 2016.04.10 the handling of >> certain ligatures changed (sorry, I don't have intermediate versions to >> test with). The issue is the ligatures no longer copy/paste as the >> original two characters, which also breaks text searched of the pdf. >> Instead they copy as a single glyph. >> >> I'm seeing the problem with "ti" and "fj", while others like "ffi", >> "fi", and "ff" are fine in both versions. >> > not all pdf viewers can do that well, unless it's broken, context > outputs the tounicode vectors needed for it I can't copy the two ligatures either (in Adobe Reader DC), but with the equivalent latex example (TL2016 pretest) it works fine. So imho it is not a viewer problem. -- Ulrike Fischer http://www.troubleshooting-tex.de/ ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
Re: [NTG-context] copy/paste text broken with certain ligatures
> On Apr 14, 2016, at 6:24 PM, Hans Hagen wrote: > >> On 4/14/2016 3:47 PM, Brian R. Landy wrote: >> Hi, sometime between version 2015.08.05 and 2016.04.10 the handling of >> certain ligatures changed (sorry, I don't have intermediate versions to >> test with). The issue is the ligatures no longer copy/paste as the >> original two characters, which also breaks text searched of the pdf. >> Instead they copy as a single glyph. >> >> I'm seeing the problem with "ti" and "fj", while others like "ffi", >> "fi", and "ff" are fine in both versions. >> >> I see this using Calibri (other fonts I tried don't support those two >> ligatures): >> >> \starttypescript[cleartype] >> \definetypeface[\typescriptone][ss][sans][calibri][default] >> \stoptypescript >> \usetypescript[cleartype] >> \setupbodyfont[cleartype,sans,10pt] >> \starttext >> ffi\par >> fi\par >> ff\par >> fi\par >> ti\par >> fj\par >> \stoptext >> >> Thank you. > > not all pdf viewers can do that well, unless it's broken, context outputs the > tounicode vectors needed for it > > Hans But Acrobat works fine with the pdf generated by the older version of ConTeXt, which also uses the ligatures. So something must be different about the files generated by the two versions? I can post examples tomorrow if you'd like. Thanks, Brian > > - > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl > - > ___ > If your question is of interest to others as well, please add an entry to the > Wiki! > > maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context > webpage : http://www.pragma-ade.nl / http://tex.aanhet.net > archive : http://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > ___ ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
Re: [NTG-context] copy/paste text broken with certain ligatures
On 4/14/2016 3:47 PM, Brian R. Landy wrote: Hi, sometime between version 2015.08.05 and 2016.04.10 the handling of certain ligatures changed (sorry, I don't have intermediate versions to test with). The issue is the ligatures no longer copy/paste as the original two characters, which also breaks text searched of the pdf. Instead they copy as a single glyph. I'm seeing the problem with "ti" and "fj", while others like "ffi", "fi", and "ff" are fine in both versions. I see this using Calibri (other fonts I tried don't support those two ligatures): \starttypescript[cleartype] \definetypeface[\typescriptone][ss][sans][calibri][default] \stoptypescript \usetypescript[cleartype] \setupbodyfont[cleartype,sans,10pt] \starttext ffi\par fi\par ff\par fi\par ti\par fj\par \stoptext Thank you. not all pdf viewers can do that well, unless it's broken, context outputs the tounicode vectors needed for it Hans - Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl - ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
[NTG-context] copy/paste text broken with certain ligatures
Hi, sometime between version 2015.08.05 and 2016.04.10 the handling of certain ligatures changed (sorry, I don't have intermediate versions to test with). The issue is the ligatures no longer copy/paste as the original two characters, which also breaks text searched of the pdf. Instead they copy as a single glyph. I'm seeing the problem with "ti" and "fj", while others like "ffi", "fi", and "ff" are fine in both versions. I see this using Calibri (other fonts I tried don't support those two ligatures): \starttypescript[cleartype] \definetypeface[\typescriptone][ss][sans][calibri][default] \stoptypescript \usetypescript[cleartype] \setupbodyfont[cleartype,sans,10pt] \starttext ffi\par fi\par ff\par fi\par ti\par fj\par \stoptext Thank you. Best regards, Brian ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
