From: Mohammad Hossein Bateni <bateni@gmail.com>
To: Hans Hagen <j.hagen@xs4all.nl>
Cc: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: tlig feature sometimes does not work
Date: Fri, 12 Mar 2021 19:11:40 -0500 [thread overview]
Message-ID: <CAMHZ1dYwyHSVDbPDrj1y8swYkoM01m6QpDiObr8T4hViVpb-5g@mail.gmail.com> (raw)
In-Reply-To: <2c4a74c3-e06e-2714-3a37-696c492d0e5b@xs4all.nl>
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That's bad. It seems, I forgot to add the fallbacks properly. I will
reach out to the designer to add those chars.
On Fri, Mar 12, 2021 at 12:32 PM Hans Hagen <j.hagen@xs4all.nl> wrote:
> On 3/11/2021 2:05 AM, Mohammad Hossein Bateni wrote:
> > Hi,
> >
> > Since most fonts do not have the standard tex ligatures built in, I tend
> > to add them when I load the fonts. Once in a while, I run into fonts
> > where this does not work.
> >
> > See the attached tex/pdf files. I basically load the font as follows:
> >
> > \definefontfeature[tf][arabic][tlig=yes]
> > \definedfont[dejavusansmono*tf]
> >
> > This works fine for DejaVuSansMono and for one Farsi font I use
> > (
> https://github.com/rastikerdar/vazir-font/blob/master/dist/Vazir-Regular.ttf
> > <
> https://github.com/rastikerdar/vazir-font/blob/master/dist/Vazir-Regular.ttf>)
>
> > but not for this other Farsi font
> > (
> https://github.com/aminabedi68/Mikhak/blob/master/Font/ttf/Mikhak-Medium.ttf
> > <
> https://github.com/aminabedi68/Mikhak/blob/master/Font/ttf/Mikhak-Medium.ttf>).
>
> > Perhaps this is because the last font is not standard, but
> > TrueType/OpenType standard is sometimes up for interpretation.
> >
> > I see two strange symptoms here:
> >
> > \showotfcomposition displays the tlig feature differently for the last
> > font. It appears in the "extra" list, not in "basic". Why is that?
> > What does this mean anyway?
>
> The font doesn't have endash and emdash so there is nothing to construct
> from the double -
>
> \starttext
> \definedfont[file:Mikhak-Medium.ttf*default] foo--bar
> [\char"2013]
> [\char"2014]
> \stoptext
>
> Just ask the author to add these characters and you're fine.
>
> 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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next prev parent reply other threads:[~2021-03-13 0:11 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-11 1:05 Mohammad Hossein Bateni
2021-03-12 17:32 ` Hans Hagen
2021-03-13 0:11 ` Mohammad Hossein Bateni [this message]
2021-03-13 0:13 ` Mohammad Hossein Bateni
2021-03-13 1:01 ` Mohammad Hossein Bateni
2021-03-13 8:12 ` Hans Hagen
2021-03-14 3:18 ` Mohammad Hossein Bateni
2021-03-13 8:00 ` Hans Hagen
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