Function Expr

src/script/descriptor.cpp:397–414

Return the expression that sp begins with, and update sp to skip it. */

/** Return the expression that sp begins with, and update sp to skip it. */
Span<const char> Expr(Span<const char>& sp)
{
    int level = 0;
    auto it = sp.begin();
    while (it != sp.end()) {
        if (*it == '(') {
            ++level;
        } else if (level && *it == ')') {
            --level;
        } else if (level == 0 && (*it == ')' || *it == ',')) {
            break;
        }
        ++it;
    }
    Span<const char> ret = sp.first(it - sp.begin());
    sp = sp.subspan(it - sp.begin());
    return ret;
}

/** Split a string on every instance of sep, returning a vector. */
std::vector<Span<const char>> Split(const Span<const char>& sp, char sep)