Pkg.trim.back: def of ezx@1.11.0.0
Import: import ezx@1.11.0.0/src/pkg/pkg.bend as Pkg
Lines 100-108 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=100&end_line=108

import Base

# a line with its trailing blanks dropped, read from the front, so that the
# trim of a line is a walk over it rather than over its reverse
def trim.back(line: String) -> String:
  match line:
    case SNil{}:
      SNil{}
    case SCon{+h, t}:
      +rest = trim.back(t)
      trim.back.at(Bool.and(blank(h), String.is_empty(rest)), h, rest)

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=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.is_empty
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/pkg/pkg.bend&name=blank
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/pkg/pkg.bend&name=trim.back.at