Lex.upper_first: def of bolt@1.27.0.0
Import: import bolt@1.27.0.0/src/syntax/lex.bend as Lex
Lines 250-256 of bolt@1.27.0.0/src/syntax/lex.bend: https://jend.leeeet.dev/read.txt?path=bolt@1.27.0.0/src/syntax/lex.bend&start_line=250&end_line=256

import Base

# does the text start with a capital?
def upper_first(cs: List<&2, Char>) -> Bool:
  match cs:
    case Nil{}:
      False{}
    case Con{c, t}:
      Char.is_upper(c)

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char.is_upper
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List