Pkg.ver.num: def of ezx@1.11.0.0
Import: import ezx@1.11.0.0/src/pkg/pkg.bend as Pkg
Lines 376-380 of ezx@1.11.0.0/src/pkg/pkg.bend: https://jend.leeeet.dev/read.txt?path=ezx@1.11.0.0/src/pkg/pkg.bend&start_line=376&end_line=380

import Base

# one number of a version: digits, and no leading zero unless it is `0`
def ver.num(+text: String) -> Bool:
  Bool.and(Bool.not(String.is_empty(text)),
    Bool.and(digits(text),
      Bool.or(String.eq(text, "0"), Bool.not(String.starts_with(text, "0")))))

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  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.not
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.or
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.eq
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.is_empty
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.starts_with
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/pkg/pkg.bend&name=digits