Function ParseHexStr

src/script/miniscript.h:1825–1835

/** Parse a hex string fully contained within a fragment with the name given by 'func' */
template<typename Ctx>
std::optional<std::vector<unsigned char>> ParseHexStr(const std::string& func, std::span<const char>& in, const size_t expected_size,
                                                                         const Ctx& ctx)
{
    std::span<const char> expr = script::Expr(in);
    if (!script::Func(func, expr)) return {};
    std::string val = std::string(expr.begin(), expr.end());
    if (!IsHex(val)) return {};
    auto hash = ParseHex(val);
    if (hash.size() != expected_size) return {};
    return hash;
}

/** BuildBack pops the last two elements off `constructed` and wraps them in the specified Fragment */
template<typename Key>