Function transcode

trunk/win/Source/LUpdateString/cpp.cpp:676–721

static QString transcode(const QString &str, bool utf8)
{
    static const char tab[] = "abfnrtv";
    static const char backTab[] = "\a\b\f\n\r\t\v";
    const QString in = (!utf8 || yySourceIsUnicode)
        ? str : QString::fromUtf8(yySourceCodec->fromUnicode(str).data());
    QString out;

    out.reserve(in.length());
    for (int i = 0; i < in.length();) {
        ushort c = in[i++].unicode();
        if (c == '\\') {
            if (i >= in.length())
                break;
            c = in[i++].unicode();

            if (c == '\n')
                continue;

            if (c == 'x') {
                QByteArray hex;
                while (i < in.length() && isxdigit((c = in[i].unicode()))) {
                    hex += c;
                    i++;
                }
                out += hex.toUInt(0, 16);
            } else if (c >= '0' && c < '8') {
                QByteArray oct;
                int n = 0;
                oct += c;
                while (n < 2 && i < in.length() && (c = in[i].unicode()) >= '0' && c < '8') {
                    i++;
                    n++;
                    oct += c;
                }
                out += oct.toUInt(0, 8);
            } else {
                const char *p = strchr(tab, c);
                out += QChar(QLatin1Char(!p ? c : backTab[p - tab]));
            }
        } else {
            out += c;
        }
    }
    return out;
}

static void recordMessage(
    Translator *tor, int line, const QString &context, const QString &text, const QString &comment,