def col_interval
import cswap-bend-cli@0.1.0.0/profview.bend as Profviewimport Base
159def col_interval(+rs: List<&2, Row>) -> List<&2, String>:
160 match rs:
161 case Nil{}:
162 []
163 case Con{Row{m, n, s, t, ms, c, i, src}, t2}:
164 i <> col_interval(t2)