boolean (@NotNull final EditorConfigCharClassLetter letter) { if (!letter.isEscape()) return false; final int length = letter.getTextLength(); if (length == 3) { return letter.textMatches("\\\r\n"); } if (length != 2) return false; final String text = letter.getText(); if (text.charAt(0) != '\\') return false; return StringsKt.contains(EditorConfigSyntaxHighlighter.VALID_ESCAPES, text.charAt(1), false); }