08:10 <Guest81> hi anyone wanna buy feet pics

08:10 <Guest81> i have a few cash apps

09:13 <dnkl> rockorager: krobelus: PR for text-size: https://codeberg.org/dnkl/foot/pulls/1927

10:13 <andyrtr> dnkl: foot does not fully support OpenType font features like font kerning? I've found Monaspace and CommitMono fonts not showing any kerning. CommitMono at least allows to use style changes through fontconfig/fonts.conf

10:13 <andyrtr> some more font configuration from foot.ini would be nice

10:18 <dnkl> beyond individual grapheme clusters, there's no shaping support in foot. i.e no ligatures or anything else that requires shaping more than one grapheme cluster at a time.

10:19 <dnkl> style changes (e.g alternative glyph variants) can be set in foot.ini; as mentioned in the man page, the font option is a fontconfig string

10:26 <andyrtr> there're in JetBrains Mono font fontconfig option for OpenType features like "zero on/off" for 0 style or "cv07 on/off" for W/w alternatives. but foot -o font="JetBrains Mono:size=12:zero=off" is invalid.

10:27 <andyrtr> also with separate -o "zero=off"

10:29 <dnkl> the fontconfig option is called fontfeatures

10:30 <dnkl> try googling that

10:34 <andyrtr> some fontfeatures like alternytive glyphs work using fontconfig/fonts.conf setting but I haven't found a way to pass it directly to foot using -o option or foot.ini

10:35 <andyrtr> I've understand that ligatures and kerning are not yet supported

10:38 <dnkl> should be something like "font=name: size=12:fontfeatures=+cv07". I remember testing it, but not sure about the exact syntax. Again, try googling it

10:43 <dnkl> https://codeberg.org/dnkl/foot/src/branch/master/doc/foot.ini.5.scd#L60

10:43 <andyrtr> thx

10:43 <dnkl> assuming I knew what I was doing when I wrote that

10:44 <dnkl> there should be a way to explicitly enable/disable too, and I think it's with +/- but not sure

12:17 <andyrtr> dnkl: I couldn't manage to find a working syntax. -o font="JetBrains Mono:size=12:fontfeatures=cv60+" (tried +cv60 doesn't affect the feature in any way. maybe foot doesn't read it properly or does not pass it well? I'm checking with fc-match -v "..." | grep fontfeatures

13:14 <dnkl> andyrtr: cv60 is a ligature-like feature that depends on two consecutive characters. As mentioned above, that's not supported

13:15 <dnkl> well, not ligature-*like*. cv60-cv79 *are* ligatures

13:16 <dnkl> or wait, maybe I was reading the wrong tänkte

13:16 <dnkl> readme

13:16 <andyrtr> I have cv07 in my fontconfig/fonts.conf and that one is working

13:17 <andyrtr> "zero on" is also working

13:17 <dnkl> can you point me to the documentation of these options/styles?

13:18 <andyrtr> https://github.com/JetBrains/JetBrainsMono?tab=readme-ov-file#opentype-features

13:20 <dnkl> I don't see cv60 there. did you mean cv06?

13:20 <andyrtr> yes

13:21 <andyrtr> does foot check if the option is present when passing? I guess it's passed using harfbuzz?

13:22 <dnkl> foot -f JetbrainsMono:fontfeatures=cv06 works for me

13:23 <dnkl> foot -f JetbrainsMono:fontfeatures=cv06:fontfeatures=zero also works

13:24 <dnkl> i.e. the same syntax we have in the man page I linked above

13:25 <dnkl> also:

13:25 <dnkl> ╴$ fc-match JetBrainsMono:fontfeatures=cv06:fontfeatures=zero:fontfeatures=cv07 -v|grep feat

13:25 <dnkl> fontfeatures: "cv06"(s) "zero"(s) "cv07"(s)

13:28 <andyrtr> fontfeatures: "calt off"(w) "zero on"(w) "cv07 on"(w) is my fontconfig/fonts.conf preset for that font and foot -o font="Jetbrains Mono:size=12:fontfeatures=cv06" -o line-height=14 doesn't change that

13:28 <andyrtr> so it seems it doesn add/replace/remove any feature

13:30 <dnkl> depends on how your fontconfig option is written. You choose if you want to set (replace) there value, or append

13:30 <dnkl> the* value

13:30 <andyrtr> <edit name="fontfeatures" mode="append">

13:31 <andyrtr> that should allow to add more features, right?

13:44 <dnkl> sounds right

13:49 <dnkl> but if fc-match isn't picking up the features on the command line, *something* in your fontconfig config is preventing it

14:10 <andyrtr> I've now fully disabled my user fontconfig/fonts.conf and it still doesn't work for me. Maybe it's swaywm or something else preventing to pickup the feature. It's not very iportant. started with loggin enables it actually passes the fontfeature but in the new terminal fc-match doesn't show it.

14:10 <rockorager> dnkl: awesome work. any perf impact after parsing the initial sequence? doesn’t sound like it

14:15 <andyrtr> dnkl: checking the letter "m" actually shows cv06 taking effect, but fc-match -v doesn't show it.

14:18 <dnkl> rockorager: normally, no. There is a performance hit if you e.g emit plain ascii with an explicit width (that doesn't match the auto-calculated one)

14:19 <dnkl> andyrtr: interesting. That's how I first checked that it worked. Looking at fc-match output was just an after thought

14:23 <rockorager> With your foobar example, I was thinking one could hack this protocol to force “word wrap” using normal text reflow from the terminal

14:24 <rockorager> if you were to wrap each word with the sequence, for example

14:24 <rockorager> …would be diabolical :)

14:25 <dnkl> please don't 🤣

14:31 <rockorager> Another weirdish hack could be to shape the text within a single sequence, then the application can be in charge of ligatures. I don’t think that would work very well in editors since the two glyphs would act as one, but for display it wouldn’t be too bad

14:42 <dnkl> that's how it works in foot... the entire text string from the escape is shaped as one run

14:53 <rockorager> oh nice