std::string AlibabaCloud::PDS::UrlDecode()

in sdk/src/utils/Utils.cc [70:98]

• 27 lines of code
• 3 McCabe index (conditional complexity)

std::string AlibabaCloud::PDS::UrlDecode(const std::string & src)
{
    std::stringstream unescaped;
    unescaped.fill('0');
    unescaped << std::hex;

    size_t safeLength = src.size();
    const char *safe = src.c_str();
    for (auto i = safe, n = safe + safeLength; i != n; ++i)
    {
        char c = *i;
        if(c == '%')
        {
            char hex[3];
            hex[0] = *(i + 1);
            hex[1] = *(i + 2);
            hex[2] = 0;
            i += 2;
            auto hexAsInteger = strtol(hex, nullptr, 16);
            unescaped << (char)hexAsInteger;
        }
        else
        {
            unescaped << *i;
        }
    }

    return unescaped.str();
}