Lex.hex4: def of cswap-bend-cli@0.1.0.0
Import: import cswap-bend-cli@0.1.0.0/json/lex.bend as Lex
Lines 150-152 of cswap-bend-cli@0.1.0.0/json/lex.bend: https://jend.leeeet.dev/read.txt?path=cswap-bend-cli@0.1.0.0/json/lex.bend&start_line=150&end_line=152

import Base

# The four hex digits at the head of s as a number; U+FFFD when malformed.
def hex4(+s: String) -> U32:
  hex4.fin(hv(cc(s, 0n)), hv(cc(s, 1n)), hv(cc(s, 2n)), hv(cc(s, 3n)))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=cswap-bend-cli@0.1.0.0/json/lex.bend&name=cc
  https://jend.leeeet.dev/definition.txt?path=cswap-bend-cli@0.1.0.0/json/lex.bend&name=hex4.fin
  https://jend.leeeet.dev/definition.txt?path=cswap-bend-cli@0.1.0.0/json/lex.bend&name=hv