* change width of a character with fonts.handlers.otf.addfeature
@ 2017-05-19 7:34 Ulrike Fischer
2017-05-19 9:05 ` Hans Hagen
0 siblings, 1 reply; 6+ messages in thread
From: Ulrike Fischer @ 2017-05-19 7:34 UTC (permalink / raw)
To: ntg-context
In extensions-001.tex
(http://minimals.metatex.org/current/context/test/doc/context/tests/mkiv/fonts/extensions-001.tex)
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.a)
(I tried a few probable variants but got either errors or no effect
at all).
--
Ulrike Fischer
http://www.troubleshooting-tex.de/
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: change width of a character with fonts.handlers.otf.addfeature
2017-05-19 7:34 change width of a character with fonts.handlers.otf.addfeature Ulrike Fischer
@ 2017-05-19 9:05 ` Hans Hagen
2017-05-19 9:25 ` Ulrike Fischer
0 siblings, 1 reply; 6+ messages in thread
From: Hans Hagen @ 2017-05-19 9:05 UTC (permalink / raw)
To: ntg-context
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/fonts/extensions-001.tex)
> 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.a)
>
> (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
-----------------------------------------------------------------
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: change width of a character with fonts.handlers.otf.addfeature
2017-05-19 9:05 ` Hans Hagen
@ 2017-05-19 9:25 ` Ulrike Fischer
2017-05-19 12:11 ` Hans Hagen
0 siblings, 1 reply; 6+ messages in thread
From: Ulrike Fischer @ 2017-05-19 9:25 UTC (permalink / raw)
To: ntg-context
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/
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: change width of a character with fonts.handlers.otf.addfeature
2017-05-19 9:25 ` Ulrike Fischer
@ 2017-05-19 12:11 ` Hans Hagen
2017-05-19 15:29 ` Ulrike Fischer
0 siblings, 1 reply; 6+ messages in thread
From: Hans Hagen @ 2017-05-19 12:11 UTC (permalink / raw)
To: ntg-context
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
-----------------------------------------------------------------
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: change width of a character with fonts.handlers.otf.addfeature
2017-05-19 12:11 ` Hans Hagen
@ 2017-05-19 15:29 ` Ulrike Fischer
2017-05-19 16:20 ` Hans Hagen
0 siblings, 1 reply; 6+ messages in thread
From: Ulrike Fischer @ 2017-05-19 15:29 UTC (permalink / raw)
To: ntg-context
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/
___________________________________________________________________________________
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
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___________________________________________________________________________________
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: change width of a character with fonts.handlers.otf.addfeature
2017-05-19 15:29 ` Ulrike Fischer
@ 2017-05-19 16:20 ` Hans Hagen
0 siblings, 0 replies; 6+ messages in thread
From: Hans Hagen @ 2017-05-19 16:20 UTC (permalink / raw)
To: ntg-context
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
-----------------------------------------------------------------
___________________________________________________________________________________
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
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___________________________________________________________________________________
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2017-05-19 7:34 change width of a character with fonts.handlers.otf.addfeature Ulrike Fischer
2017-05-19 9:05 ` Hans Hagen
2017-05-19 9:25 ` Ulrike Fischer
2017-05-19 12:11 ` Hans Hagen
2017-05-19 15:29 ` Ulrike Fischer
2017-05-19 16:20 ` Hans Hagen
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