def value_cut
import cli@0.2.0.0/cli.bend as Cliimport Base
5351# Where an option's value or repeat starts: " <", "[=", or a final "...".
5352def value_cut(s: String) -> Nat:
5353 match s:
5354 case SNil{}: 0n
5355 case SCon{Chr{32}, SCon{Chr{60}, tail}}: 0n
5356 case SCon{Chr{91}, SCon{Chr{61}, tail}}: 0n
5357 case SCon{Chr{46}, SCon{Chr{46}, SCon{Chr{46}, SNil{}}}}: 0n
5358 case SCon{head, tail}: 1n+value_cut(tail)