Function scanStringLiteral

docs/app/js/sanddance-app.js:143807–143872

()

    };
} // 7.8.4 String Literals
function scanStringLiteral() {
    var str = "", quote, start, ch, code, octal = false;
    quote = source[index];
    assert(quote === "'" || quote === '"', "String literal must starts with a quote");
    start = index;
    ++index;
    while(index < length){
        ch = source[index++];
        if (ch === quote) {
            quote = "";
            break;
        } else if (ch === "\\") {
            ch = source[index++];
            if (!ch || !isLineTerminator(ch.charCodeAt(0))) switch(ch){
                case "u":
                case "x":
                    if (source[index] === "{") {
                        ++index;
                        str += scanUnicodeCodePointEscape();
                    } else str += scanHexEscape(ch);
                    break;
                case "n":
                    str += "\n";
                    break;
                case "r":
                    str += "\r";
                    break;
                case "t":
                    str += "	";
                    break;
                case "b":
                    str += "\b";
                    break;
                case "f":
                    str += "\f";
                    break;
                case "v":
                    str += "\v";
                    break;
                default:
                    if (isOctalDigit(ch)) {
                        code = "01234567".indexOf(ch); // \0 is not octal escape sequence
                        if (code !== 0) octal = true;
                        if (index < length && isOctalDigit(source[index])) {
                            octal = true;
                            code = code * 8 + "01234567".indexOf(source[index++]); // 3 digits are only allowed when string starts
                            // with 0, 1, 2, 3
                            if ("0123".indexOf(ch) >= 0 && index < length && isOctalDigit(source[index])) code = code * 8 + "01234567".indexOf(source[index++]);
                        }
                        str += String.fromCharCode(code);
                    } else str += ch;
                    break;
            }
            else if (ch === "\r" && source[index] === "\n") ++index;
        } else if (isLineTerminator(ch.charCodeAt(0))) break;
        else str += ch;
    }
    if (quote !== "") throwError({}, MessageUnexpectedToken, ILLEGAL);