Function parse

native/cocos/base/csscolorparser.cpp:279–385

}

Color parse(const ccstd::string &cssStr) {
    ccstd::string str = cssStr;

    // Remove all whitespace, not compliant, but should just be more accepting.
    str.erase(std::remove(str.begin(), str.end(), ' '), str.end());

    // Convert to lowercase.
    std::transform(str.begin(), str.end(), str.begin(), ::tolower);

    for (const auto &namedColor : NAMED_COLORS) {
        if (str == namedColor.name) {
            return namedColor.color;
        }
    }

    // #abc and #abc123 syntax.
    if (str.length() && str.front() == '#') {
        if (str.length() == 4) {
            int64_t iv =
                parseInt(str.substr(1), 16); // REFINE(deanm): Stricter parsing.
            if (!(iv >= 0 && iv <= 0xfff)) {
                return {};
            }

            return Color(
                static_cast<uint8_t>(((iv & 0xf00) >> 4) | ((iv & 0xf00) >> 8)),
                static_cast<uint8_t>((iv & 0xf0) | ((iv & 0xf0) >> 4)),
                static_cast<uint8_t>((iv & 0xf) | ((iv & 0xf) << 4)), 1);
        }

        if (str.length() == 7) {
            int64_t iv = parseInt(str.substr(1), 16); // REFINE(deanm): Stricter parsing.
            if (!(iv >= 0 && iv <= 0xffffff)) {
                return {}; // Covers NaN.
            }

            return Color(static_cast<uint8_t>((iv & 0xff0000) >> 16),
                         static_cast<uint8_t>((iv & 0xff00) >> 8),
                         static_cast<uint8_t>(iv & 0xff), 1);
        }

        return Color();
    }

    size_t op = str.find_first_of('(');
    size_t ep = str.find_first_of(')');
    if (op != ccstd::string::npos && ep + 1 == str.length()) {
        const ccstd::string fname = str.substr(0, op);
        const ccstd::vector<ccstd::string> params =
            split(str.substr(op + 1, ep - (op + 1)), ',');

        float alpha = 1.0f;

        if (fname == "rgba" || fname == "rgb") {
            if (fname == "rgba") {
                if (params.size() != 4) {
                    return {};
                }