On 4/13/23 07:33, Akira TAGOH wrote:
Nevermind. you can simply drop the 3rd test then.
Is there a way to match fonts by their PostScript name?
Yes. you can use "postscriptname" property.
Sorry, my question wasn't clear, what i meant is, is there a way in in
the config file to say, "if given this string, match it to this psname,
or this full_name", e.g: if given "Iosevka Extrabold Extended Oblique"
match it to the font with psname:"Iosevka-Extrabold-Extended-Oblique".
My goal is, at application startup to check for fonts that aren't
matched properly, then remap then load the config, is there a general
solution?
That depends on the meaning of "not matched". speaking of the fallback
font, that is exactly what fontconfig does. In case of your issue,
that is the case-by-case. If there are any generally useful solutions,
please let us know.
What could be done in this particular case? that is,
`fc-match "Isoveka Extrabold Extended Oblique"` outputs
`Noto Sans Regular` instead of the correct font.
On Thu, Apr 13, 2023 at 8:04 AM Idriss Fekir <mcsm224@xxxxxxxxx> wrote:
On 4/12/23 08:45, Akira TAGOH wrote:
First of all, Please note that "Regular" style is default style
though, most applications request *Regular weight* instead of style
name. So the correct command to represent a request is `fc-match
"Amber Whiskey:weight=regular".
Based on that, let's see what happened.
AmberWhiskey-Aged.otf has two family names. one is "Amber Whiskey" and
one is "Amber Whiskey Aged". And, weight is set to 80 which is the
same as FC_WEIGHT_REGULAR. So the behavior itself isn't wrong.
Second, I don't recommend using the above config because that will
break non-Regular selection. I didn't test but this may works instead:
<match>
<test name="family">
<string>Amber Whiskey</string>
</test>
<test name="weight">
<const>regular</const>
</test>
<test qual="all" name="style" compare="eq">
<string></string>
</test>
<edit name="style">
<string>Regular</string>
</edit>
</match>
This will add Regular to style property only when weight is set to
"regular" and no styles is set. you can still pick up the aged variant
with "Amber Whiskey:style=Aged".
If you don't want to see the aged variant as a part of "Amber
Whiskey", things would be much simpler. you may have another
workaround like this:
<match target="scan">
<test name="family">
<string>Amber Whiskey</string>
</test>
<test name="family">
<string>Amber Whiskey Aged</string>
</test>
<edit name="family" mode="delete" />
</match>
This will modify the fontconfig cache. AmberWhiskey-Aged.otf is then
represented as "Amber Whiskey Aged" only.
For your original question, if there are any reasons you can't put
something into a config file, you can use
FcConfigParseAndLoadFromMemory() function as said in other mail.
otherwise you can create your own config for a workaround and put it
into $HOME/.config/fontconfig or something like that.
Hope that helps,
On Wed, Apr 12, 2023 at 9:12 AM Idriss Fekir <mcsm224@xxxxxxxxx> wrote:
Hi,
Some fonts aren't matched by fontconfig correctly e.g: the Amber Whiskey
family has 4 faces Regular, Aged, Full Color, Shadow.
`fc-match "Amber Whiskey"` outputs "Aged" instead of "Regular", And
since Pango relies on fontconfig for that, it also exhibits the same
behavior (e.g: Inkscape an gimp, both rely on pango, would pick the
"Aged" variant). This could be worked around with a rule:
```
<match target="pattern">
<test name="family">
<string>Amber Whiskey</string>
</test>
<edit name="style">
<string>Regular</string>
</edit>
</match>
```
My question is how can i do that but in code (in C), that is
how can i check what fc-match would output, then if the output is wrong
add a rule like the following to the FcConfig?
I'm open to suggestions if there are better ways.
I did read the docs but i couldn't figure out how.
The man page for FcFontMatch says that it should only be called after
FcConfigSubstitute and FcDefaultSubstitute have been called for
the pattern, i don't understand what that means exactly.
Thanks a lot.
Thanks for your replies Jean and Akira.
Akira, your first solution worked, but i don't understand what you meant
that my config breaks non-regular selection, all other variants are
matched correctly.
Some faces of Iosevka (e.g Iosevka Fixed Extrabold Extended Oblique is
matched as NotoSans Italic) also have this problem but fc-match returns
the fallback font, so I'm not sure how to fix that .
Is there a way to match fonts by their PostScript name?
My goal is, at application startup to check for fonts that aren't
matched properly, then remap then load the config, is there a general
solution?
Thanks
--
Idriss
Another question, what does `FcConfigSubstituteWithPat` do, i couldn't
understand from the man page.
Sorry for asking so many questions.
Thank.
--
Idriss
