Font.ttf.contour: def of gralha-truetype@0.1.0.1
Import: import gralha-truetype@0.1.0.1/font.bend as Font
Lines 481-490 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=481&end_line=490

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

def ttf.contour(pts: List<&2, TTPoint>) -> String:
  match pts:
    case Nil{}: ""
    case Con{TTPoint{x, y, on}, rest}:
      +fx = x
      +fy = y
      +r = rest
      U.branch(String, on,
        _ => "M" ++ ttf.pair(TTPoint{fx, fy, True{}}) ++ ttf.walk(r, None{}, TTPoint{fx, fy, True{}}),
        _ => ttf.contour.off(TTPoint{fx, fy, False{}}, r))

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.append
  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=TTPoint
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=ttf.contour.off
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=ttf.pair
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=ttf.walk