Method parse_string_to_bytes

src/lib/parse/ParseContext.cpp:24–53

Convert a raw quoted string token (including surrounding quotes) to bytes.

// Convert a raw quoted string token (including surrounding quotes) to bytes.
std::string ParseContext::parse_string_to_bytes(const std::string& raw) {
    // strip surrounding quotes
    std::string str = raw.substr(1, raw.size() - 2);
    std::string datastr;
    for (auto it = str.begin(); it != str.end(); it = std::next(it)) {
        if (*it != '\\') { datastr += *it; continue; }
        it = std::next(it);
        switch (*it) {
            case 't':  datastr += '\t'; break;
            case 'n':  datastr += '\n'; break;
            case 'r':  datastr += '\r'; break;
            case '"':  datastr += '"';  break;
            case '\'': datastr += '\''; break;
            case '\\': datastr += '\\'; break;
            case 'u': {
                it = std::next(it, 2); // skip 'u{'
                std::string valstr;
                while (*it != '}') { valstr += *it; it = std::next(it); }
                u32_t val = std::stoul(removeUnderscore(valstr), nullptr, 16);
                if (val == 0) { datastr += '\0'; }
                else { while (val) { datastr += (char)(val & 0xff); val >>= 8; } }
            } break;
            default: {
                datastr += (char)std::stoi(std::string() + *it + *std::next(it), nullptr, 16);
                it = std::next(it);
            } break;
        }
    }
    return datastr;
}

// ── Constructor / entry point ────────────────────────────────────────────────