Font.font.ttf: def of gralha-truetype@0.1.0.1
Import: import gralha-truetype@0.1.0.1/font.bend as Font
Lines 788-795 of gralha-truetype@0.1.0.1/font.bend: https://jend.leeeet.dev/read.txt?path=gralha-truetype@0.1.0.1/font.bend&start_line=788&end_line=795

import Base
import gralha-text-scan@0.1.0.1/scan.bend as U
import gralha-bytes@0.1.0.1/bytes.bend as Bin

# Adds one face from TrueType bytes: the face record for on-demand glyphs and
# kerning, and its OS/2 metrics. Fonts without glyf/loca/hmtx leave the book unchanged.
def font.ttf(+face: U32, +b: Bin.Bytes, +book: FontBook) -> FontBook:
  FontBook{glyphs, kerning, metrics, faces} = book
  +f = ttf.font(b)
  U.branch(FontBook, ttf.valid(f),
    _ => ttf.metrics(b, face, ttf.table(b, 1330851634), ttf.units(f), FontBook{glyphs, kerning, metrics, Map.set(&2, TTFace, faces, U32.show(face), TTFace{b, f, ttf.pairs(b), ttf.cmap.subtable(b)})}),
    _ => FontBook{glyphs, kerning, metrics, faces})

Uses (14):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Map.set
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.show
  https://jend.leeeet.dev/definition.txt?path=gralha-bytes@0.1.0.1/bytes.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=gralha-text-scan@0.1.0.1/scan.bend&name=branch
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=FontBook
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=TTFace
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=ttf.cmap.subtable
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=ttf.font
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=ttf.metrics
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=ttf.pairs
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=ttf.table
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=ttf.units
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=ttf.valid