Nar.hex.val: def of ezx@1.11.0.0
Import: import ezx@1.11.0.0/src/sha/nar.bend as Nar
Lines 186-188 of ezx@1.11.0.0/src/sha/nar.bend: https://jend.leeeet.dev/read.txt?path=ezx@1.11.0.0/src/sha/nar.bend&start_line=186&end_line=188

import Base

def hex.val(+ch: Char) -> U32:
  +u = Char.to_u32(ch)
  hex.val.digit(Bool.and(U32.is_ge(u, 48), U32.is_le(u, 57)), u)

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char.to_u32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_ge
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_le
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/sha/nar.bend&name=hex.val.digit