def halve.put
import ezx@1.11.0.0/src/ez/target.bend as Targetimport Base
155# a char put back in front of the left half
156def halve.put(ch: Char, halves: Halves) -> Halves:
157 match halves:
158 case Uncut{}:
159 Uncut{}
160 case Two{left, right}:
161 Two{SCon{ch, left}, right}