def plain.at

ezx@1.11.0.0 · src/ez/target.bend:16

import Base

16# a char a GitHub owner or repository may hold besides a dot: a letter, a
17# digit, `-` or `_`
18def plain.at(+ch: Char) -> Bool:
19  Bool.or(Char.is_digit(ch), Bool.or(Char.is_alpha(ch),
20    Bool.or(Char.is_eq(ch, '-'), Char.is_eq(ch, '_'))))