Function IsReductionOnSymbolsTrue

util/charset/wide.cpp:95–106

template <typename T>
static bool IsReductionOnSymbolsTrue(const TWtringBuf text, T&& f) {
    const auto* p = text.data();
    const auto* const pe = text.data() + text.length();
    while (p != pe) {
        const auto symbol = ReadSymbolAndAdvance(p, pe);
        if (!f(symbol)) {
            return false;
        }
    }

    return true;
}

bool IsLowerWord(const TWtringBuf text) noexcept {
    return IsReductionOnSymbolsTrue(text, [](const wchar32 s) { return IsLower(s); });