nixpkgs/pkgs/data/fonts/dina/default.nix
Naïm Favier 027f768758
dina-font: fix encoding
The provided BDF files are encoded as CP1252, but they claim to be
ISO8859-1. This causes a few glyphs (like `œ`) to be unused.

Use fontforge to re-encode from CP1252 to Unicode, but keep doing the
conversion with other tools because fontforge introduces spacing issues.
2022-12-31 19:51:20 +01:00

78 lines
2.2 KiB
Nix

{ lib, stdenv, fetchzip, fontforge
, bdftopcf, xorg
}:
stdenv.mkDerivation {
pname = "dina-font";
version = "2.92";
outputs = [ "out" "bdf" ];
src = fetchzip {
url = "https://www.dcmembers.com/jibsen/download/61/?wpdmdl=61";
hash = "sha256-JK+vnOyhAbwT825S+WKbQuWgRrfZZHfyhaMQ/6ljO8s=";
extension = "zip";
stripRoot = false;
};
nativeBuildInputs =
[ fontforge bdftopcf xorg.mkfontscale xorg.fonttosfnt ];
buildPhase = ''
runHook preBuild
newName() {
local name=''${1##*/}
test "''${name:5:1}" = i && _it=Italic || _it=
case ''${name:6:3} in
400) _weight=Medium ;;
700) _weight=Bold ;;
esac
_pt=''${1%.bdf}
_pt=''${_pt#*-}
echo "Dina$_weight$_it$_pt"
}
# Re-encode the provided BDF files from CP1252 to Unicode as fonttosfnt does
# not support the former.
# We could generate the PCF and OTB files with fontforge directly, but that
# results in incorrect spacing in various places.
for f in BDF/*.bdf; do
basename=''${f##*/} basename=''${basename%.*}
fontforge -lang=ff -c "Open(\"$f\"); Reencode(\"win\", 1); Reencode(\"unicode\"); Generate(\"$basename.bdf\")"
mv "$basename"-*.bdf "$basename".bdf # remove the superfluous added size suffix
done
for f in *.bdf; do
name=$(newName "$f")
bdftopcf -t -o "$name.pcf" "$f"
fonttosfnt -v -o "$name.otb" "$f"
done
gzip -n -9 *.pcf
runHook postBuild
'';
installPhase = ''
runHook preInstall
install -D -m 644 -t "$out/share/fonts/misc" *.pcf.gz *.otb
install -D -m 644 -t "$bdf/share/fonts/misc" *.bdf
mkfontdir "$out/share/fonts/misc"
mkfontdir "$bdf/share/fonts/misc"
runHook postInstall
'';
meta = with lib; {
description = "A monospace bitmap font aimed at programmers";
longDescription = ''
Dina is a monospace bitmap font, primarily aimed at programmers. It is
relatively compact to allow a lot of code on screen, while (hopefully)
clear enough to remain readable even at high resolutions.
'';
homepage = "https://www.dcmembers.com/jibsen/download/61/";
license = licenses.free;
maintainers = with maintainers; [ prikhi ncfavier ];
};
}