[NTG-context] Failure when loading variable font
Hi,
the latest ConTeXt version fails for the following
document:
\definefontfeature
[default:test]
[default]
[axis={Weight=100}]
\definefont
[SomeFont]
[file:Fraunces.ttf*default:test]
\starttext
\SomeFont Abcdef
\stoptext
and the font from
https://github.com/undercasetype/Fraunces/raw/master/fonts/Fraunces%5BSOFT%2CWONK%2Copsz%2Cwght%5D.ttf
renamed to Fraunces.ttf
with the error message
otf reader > user instance: weight=100, factors: 0 -1.0 0 0
otf reader > fatal error in file 'Fraunces.ttf':
...e0dde776fb1556f32e/formats/luametatex/font-ttf-macro.lua:274: attempt to
index a nil value (local 'p1')
stack traceback:
...e0dde776fb1556f32e/formats/luametatex/font-otr-macro.lua:2339:
in metamethod 'index'
...e0dde776fb1556f32e/formats/luametatex/font-ttf-macro.lua:274: in
upvalue 'applyaxis'
...e0dde776fb1556f32e/formats/luametatex/font-ttf-macro.lua:1428:
in field 'gvar'
...e0dde776fb1556f32e/formats/luametatex/font-ttf-macro.lua:1155:
in local 'reader'
...e0dde776fb1556f32e/formats/luametatex/font-otr-macro.lua:2084:
in upvalue 'readtable'
...e0dde776fb1556f32e/formats/luametatex/font-otr-macro.lua:2197:
in upvalue 'readdata'
...e0dde776fb1556f32e/formats/luametatex/font-otr-macro.lua:2252:
in function <...e0dde776fb1556f32e/formats/luametatex/font-otr-macro.lua:2235>
[C]: in function 'xpcall'
...e0dde776fb1556f32e/formats/luametatex/font-otr-macro.lua:2341:
in upvalue 'loadfont'
...e0dde776fb1556f32e/formats/luametatex/font-otr-macro.lua:2396:
in field 'loadfont'
...mtx/tex/texmf-context/tex/context/base/mkiv/font-otl.lua:160: in
field 'load'
...mtx/tex/texmf-context/tex/context/base/mkiv/font-otl.lua:599: in
upvalue 'otftotfm'
...mtx/tex/texmf-context/tex/context/base/mkiv/font-otl.lua:627: in
function <...mtx/tex/texmf-context/tex/context/base/mkiv/font-otl.lua:626>
(...tail calls...)
...mtx/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:377: in
function <...mtx/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:365>
(...tail calls...)
...mtx/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:483: in
field 'read'
...mtx/tex/texmf-context/tex/context/base/mkxl/font-ctx.lmt:1336:
in function <...mtx/tex/texmf-context/tex/context/base/mkxl/font-ctx.lmt:1193>
(...tail calls...)
fonts > otf loading > loading failed due to read error
(This run used luametatex, but the same issue occurs when using luatex)
The same font worked correctly with the ConTeXt version from 2021-05-20.
Best regards,
Marcel
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Re: [NTG-context] em-dash ligature is converted to en-dash in the generic fontloader
On Fri, 01 Mar 2019 11:17:56 +0100 Hans Hagen wrote
> On 2/28/2019 12:38 PM, Marcel Krüger wrote:
> > On 2/23/2019 1:50 PM, Ulrike Fischer wrote:
> >> As reported on the dev-luatex list --- is converted to an en-dash
> >> (instead of em-dash) if there are no spaces around the ---.
> >>
> >> We could now reproduce the problem also with the generic fontloader:
> >> it appears only with mode=node. I'm using the files from 2019-02-14,
> >> but the problem appeared first in the files from 2018-11-18):
> >>
> >> \font\test={file:texgyreheros-regular.otf:+tlig;mode=node;}\test
> >>
> >> dashes-these % gives dash
> >>
> >> dashes--these % gives en-dash
> >>
> >> dashes---these % gives en-dash WRONG
> >>
> >> dashes --- these % gives em-dash
> >>
> >> em-dashes---these % gives em-dash
> >>
> >> \bye
> >>
> >> context is not affected, there the code works fine.
> >
> > This issue can be fixed in the fontloader with the attached patch.
> Hm, I don't see those lines here and it looks ok in context so ... no
For reproduction in context, the code
\starttext
ff\discretionary{l}{}{l}
\stoptext
currently produces a single `fl` ligature instead of `ffl`.
Interesting that you didn't see those lines, maybe we have different versions?
The patched line is line 844 in the file `font-ots.lua` of ConTeXt beta,
updated today.
Best regards
Marcel
> patches applied (and definitely not in the tex live code freeze window)
>
> 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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[NTG-context] em-dash ligature is converted to en-dash in the generic fontloader
On 2/23/2019 1:50 PM, Ulrike Fischer wrote:
> As reported on the dev-luatex list --- is converted to an en-dash
> (instead of em-dash) if there are no spaces around the ---.
>
> We could now reproduce the problem also with the generic fontloader:
> it appears only with mode=node. I'm using the files from 2019-02-14,
> but the problem appeared first in the files from 2018-11-18):
>
> \font\test={file:texgyreheros-regular.otf:+tlig;mode=node;}\test
>
> dashes-these % gives dash
>
> dashes--these % gives en-dash
>
> dashes---these % gives en-dash WRONG
>
> dashes --- these % gives em-dash
>
> em-dashes---these % gives em-dash
>
> \bye
>
> context is not affected, there the code works fine.
This issue can be fixed in the fontloader with the attached patch.
Best regards,
Marcel Krüger
0001-Fix-ligature-followed-by-disc.diff
Description: Binary data
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