Target.plain.at: def of ezx@1.11.0.0
Import: import ezx@1.11.0.0/src/ez/target.bend as Target
Lines 16-20 of ezx@1.11.0.0/src/ez/target.bend: https://jend.leeeet.dev/read.txt?path=ezx@1.11.0.0/src/ez/target.bend&start_line=16&end_line=20

import Base

# a char a GitHub owner or repository may hold besides a dot: a letter, a
# digit, `-` or `_`
def plain.at(+ch: Char) -> Bool:
  Bool.or(Char.is_digit(ch), Bool.or(Char.is_alpha(ch),
    Bool.or(Char.is_eq(ch, '-'), Char.is_eq(ch, '_'))))

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.or
  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_alpha
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char.is_digit
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char.is_eq