Load unifont fonts into typst

Cargo.lock

@@ -2527,6 +2527,7 @@ dependencies = [
  "image",
  "serde",
  "serde_json",
+ "showbits-assets",
  "typst",
  "typst-assets",
  "typst-render",

showbits-typst/Cargo.toml

@@ -8,6 +8,7 @@ anyhow = { workspace = true }
 image = { workspace = true }
 serde = { workspace = true }
 serde_json = "1.0.139"
+showbits-assets = { workspace = true }
 typst = { workspace = true }
 typst-assets = { workspace = true }
 typst-render = { workspace = true }

showbits-typst/src/lib.rs

@@ -53,10 +53,9 @@ impl FontLoader {
         }
     }
 
-    fn load_embedded_fonts(&mut self) {
+    fn load_font_file(&mut self, data: &'static [u8]) {
         // https://github.com/typst/typst/blob/be12762d942e978ddf2e0ac5c34125264ab483b7/crates/typst-cli/src/fonts.rs#L107-L121
-        for font_file in typst_assets::fonts() {
-            let font_data = Bytes::new(font_file);
+        let font_data = Bytes::new(data);
         for (i, font) in Font::iter(font_data).enumerate() {
             self.book.push(font.info().clone());
             self.fonts.push(FontSlot {
@@ -66,6 +65,18 @@ impl FontLoader {
             });
         }
     }
+
+    fn load_embedded_fonts(&mut self) {
+        // https://github.com/typst/typst/blob/be12762d942e978ddf2e0ac5c34125264ab483b7/crates/typst-cli/src/fonts.rs#L107-L121
+        for font_file in typst_assets::fonts() {
+            self.load_font_file(font_file);
+        }
+    }
+
+    fn load_unifonts(&mut self) {
+        self.load_font_file(showbits_assets::UNIFONT);
+        self.load_font_file(showbits_assets::UNIFONT_JP);
+        self.load_font_file(showbits_assets::UNIFONT_UPPER);
     }
 }
 
@@ -82,6 +93,7 @@ impl Typst {
     pub fn new() -> Self {
         let mut loader = FontLoader::new();
         loader.load_embedded_fonts();
+        loader.load_unifonts();
 
         Self {
             library: LazyHash::new(Library::default()),