Netip.hexval: def of bend-kit-netip@0.1.0.0
Import: import bend-kit-netip@0.1.0.0/netip.bend as Netip
Lines 9-13 of bend-kit-netip@0.1.0.0/netip.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-netip@0.1.0.0/netip.bend&start_line=9&end_line=13

import Base

# A hex digit's value, or 16 when c is not one.
def hexval(+c: U32) -> U32:
  Bool.pick(U32, Bool.and(U32.is_le(48, c), U32.is_le(c, 57)), (c - 48 : U32),
    Bool.pick(U32, Bool.and(U32.is_le(97, c), U32.is_le(c, 102)), (c - 87 : U32),
      Bool.pick(U32, Bool.and(U32.is_le(65, c), U32.is_le(c, 70)), (c - 55 : U32), 16)))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.pick
  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_le
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.sub