change width of a character with fonts.handlers.otf.addfeature
In extensions-001.tex (http://minimals.metatex.org/current/context/test/doc/context/tests/mkiv/font...) there is an example how to add or change the kern between two chars: fonts.handlers.otf.addfeature { name = "ktest", type = "kern", data = { a = { b = -500 }, } } Can this be used to implement also a "Single adjustment positioning" which would effectivly change the width of character? (http://www.adobe.com/devnet/opentype/afdko/topic_feature_file_syntax.html#6....) (I tried a few probable variants but got either errors or no effect at all). -- Ulrike Fischer http://www.troubleshooting-tex.de/
On 5/19/2017 9:34 AM, Ulrike Fischer wrote:
In extensions-001.tex (http://minimals.metatex.org/current/context/test/doc/context/tests/mkiv/font...) there is an example how to add or change the kern between two chars:
fonts.handlers.otf.addfeature { name = "ktest", type = "kern", data = { a = { b = -500 }, } }
Can this be used to implement also a "Single adjustment positioning" which would effectivly change the width of character?
(http://www.adobe.com/devnet/opentype/afdko/topic_feature_file_syntax.html#6....)
(I tried a few probable variants but got either errors or no effect at all).
I'll add support for 'single' to user features: \startluacode fonts.handlers.otf.addfeature { name = "stest", type = "single", data = { a = { -30, 0, -50, 0 }, } } \stopluacode \definefontfeature[whatever][default][stest=yes] \starttext \definedfont[Serif*whatever] \vl a\vl \stoptext ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------
Am Fri, 19 May 2017 11:05:58 +0200 schrieb Hans Hagen:
I'll add support for 'single' to user features:
\startluacode fonts.handlers.otf.addfeature { name = "stest", type = "single", data = { a = { -30, 0, -50, 0 }, } } \stopluacode
Thanks. Let's hope that luaotfload catch up and gets it too. Did you saw the error message caused by the ccmp-feature (https://github.com/lualatex/luaotfload/issues/412)? Does it affect context too or has it been resolved in its fontloader? -- Ulrike Fischer http://www.troubleshooting-tex.de/
On 5/19/2017 11:25 AM, Ulrike Fischer wrote:
Am Fri, 19 May 2017 11:05:58 +0200 schrieb Hans Hagen:
I'll add support for 'single' to user features:
\startluacode fonts.handlers.otf.addfeature { name = "stest", type = "single", data = { a = { -30, 0, -50, 0 }, } } \stopluacode
Thanks. Let's hope that luaotfload catch up and gets it too.
i suppose that it does catch up (not sure about the frequency, also because after the current we now enter beta again)
Did you saw the error message caused by the ccmp-feature (https://github.com/lualatex/luaotfload/issues/412)? Does it affect
i don't follow all those lists
context too or has it been resolved in its fontloader?
i don't know ... i need a pure context example in order to check, maybe some discretionary thing Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------
Am Fri, 19 May 2017 14:11:42 +0200 schrieb Hans Hagen:
Thanks. Let's hope that luaotfload catch up and gets it too.
i suppose that it does catch up (not sure about the frequency, also because after the current we now enter beta again)
Currently it lags a bit behind.
Did you saw the error message caused by the ccmp-feature (https://github.com/lualatex/luaotfload/issues/412)? Does it affect
i don't follow all those lists
The original question was on the luatex list on 10. May ("Combining diacritics in some fonts: "(linebreak): invalid list tail, probably missing glue""). I then converted it to an issue for luaotfload.
context too or has it been resolved in its fontloader?
i don't know ... i need a pure context example in order to check, I tried to make one but didn't manage to reproduce the error -- perhaps because the problem doesn't exist in context or perhaps because I didn't manage to reproduce/add the needed hyphenation patterns.
-- Ulrike Fischer http://www.troubleshooting-tex.de/
On 5/19/2017 5:29 PM, Ulrike Fischer wrote:
Am Fri, 19 May 2017 14:11:42 +0200 schrieb Hans Hagen:
Thanks. Let's hope that luaotfload catch up and gets it too.
i suppose that it does catch up (not sure about the frequency, also because after the current we now enter beta again)
Currently it lags a bit behind.
ok, so you could test with the latest beta when available (i think you did that before so it's doable)
Did you saw the error message caused by the ccmp-feature (https://github.com/lualatex/luaotfload/issues/412)? Does it affect
i don't follow all those lists
The original question was on the luatex list on 10. May ("Combining diacritics in some fonts: "(linebreak): invalid list tail, probably missing glue""). I then converted it to an issue for luaotfload.
ok, i don't follow such macro package specific issues (i don't have tex live installed and would not know where to look / how to zoom in anyway) .. normally someone comes up with a generic example
context too or has it been resolved in its fontloader?
i don't know ... i need a pure context example in order to check, I tried to make one but didn't manage to reproduce the error -- perhaps because the problem doesn't exist in context or perhaps because I didn't manage to reproduce/add the needed hyphenation patterns.
if it relates to patterns, then using \discretionary{}{}{} with something in it should also fail .. maybe it eventually becomes some disc node at the end of a list (can depend on the font) ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------
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