fix(lexer): Account for CRLF during quoted-scalar unindent (#306)

src/parse/lexer.ts

@@ -474,7 +474,7 @@ export class Lexer {
       }
       if (nl !== -1) {
         // this is an error caused by an unexpected unindent
-        end = nl - 1
+        end = nl - (qb[nl - 1] === '\r' ? 2 : 1)
       }
     }
     if (end === -1) {

tests/lexer.ts

@@ -0,0 +1,12 @@
+import { Lexer } from 'yaml'
+
+test('unexpected unindent in quoted string with CRLF', () => {
+  const src = '- "\r\nx"'
+  let n = 0
+  const res: string[] = []
+  for (const lex of new Lexer().lex(src)) {
+    res.push(lex)
+    if (++n === 10) break
+  }
+  expect(res).toEqual(['\u0002', '-', ' ', '"', '\r\n', '\u001f', 'x"'])
+})