def scan

bolt@1.27.0.0 · src/rules/correctness/escape.bend:100

import Base
import bolt@1.27.0.0/src/finding.bend as F

100# a literal's Syms from a column; an escape is its backslash and one char
101def scan(ss: List<&2, Sym>, +path: String, +line: U32, +col: U32) -> List<&2, F.Finding>:
102  match ss:
103    case Con{SSlash{}, Con{SZero{}, +rest}}:
104      after(rest, path, line, col, scan(rest, path, line, (col + 2 : U32)))
105    case Con{SSlash{}, Con{e, rest}}:
106      scan(rest, path, line, (col + 2 : U32))
107    case Con{s, rest}:
108      scan(rest, path, line, (col + 1 : U32))
109    case Nil{}:
110      Nil{}