Toml.head.of: def of ezx@1.11.0.0
Import: import ezx@1.11.0.0/src/toml/toml.bend as Toml
Lines 263-271 of ezx@1.11.0.0/src/toml/toml.bend: https://jend.leeeet.dev/read.txt?path=ezx@1.11.0.0/src/toml/toml.bend&start_line=263&end_line=271

import Base

# a header as ez names it: its segments, each bare or quoted, joined by dots
def head.of(segs: List<&2, String>) -> String:
  match segs:
    case []:
      ""
    case +hd <> []:
      key(hd)
    case +hd <> tl:
      key(hd) ++ "." ++ head.of(tl)

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  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=ezx@1.11.0.0/src/toml/toml.bend&name=key