C++ (Cpp) vector::find_first_not_of Examples

Example #1

File: smallut.cpp Project: amotzkau/upmpdcli

// Date is Y[-M[-D]]
static bool parsedate(vector<string>::const_iterator& it,
                      vector<string>::const_iterator end, DateInterval *dip)
{
    dip->y1 = dip->m1 = dip->d1 = dip->y2 = dip->m2 = dip->d2 = 0;
    if (it->length() > 4 || !it->length() ||
            it->find_first_not_of("0123456789") != string::npos) {
        return false;
    }
    if (it == end || sscanf(it++->c_str(), "%d", &dip->y1) != 1) {
        return false;
    }
    if (it == end || *it == "/") {
        return true;
    }
    if (*it++ != "-") {
        return false;
    }

    if (it->length() > 2 || !it->length() ||
            it->find_first_not_of("0123456789") != string::npos) {
        return false;
    }
    if (it == end || sscanf(it++->c_str(), "%d", &dip->m1) != 1) {
        return false;
    }
    if (it == end || *it == "/") {
        return true;
    }
    if (*it++ != "-") {
        return false;
    }

    if (it->length() > 2 || !it->length() ||
            it->find_first_not_of("0123456789") != string::npos) {
        return false;
    }
    if (it == end || sscanf(it++->c_str(), "%d", &dip->d1) != 1) {
        return false;
    }

    return true;
}

Example #2

File: smallut.cpp Project: amotzkau/upmpdcli

// Called with the 'P' already processed. Period ends at end of string
// or at '/'. We dont' do a lot effort at validation and will happily
// accept 10Y1Y4Y (the last wins)
static bool parseperiod(vector<string>::const_iterator& it,
                        vector<string>::const_iterator end, DateInterval *dip)
{
    dip->y1 = dip->m1 = dip->d1 = dip->y2 = dip->m2 = dip->d2 = 0;
    while (it != end) {
        int value;
        if (it->find_first_not_of("0123456789") != string::npos) {
            return false;
        }
        if (sscanf(it++->c_str(), "%d", &value) != 1) {
            return false;
        }
        if (it == end || it->empty()) {
            return false;
        }
        switch (it->at(0)) {
        case 'Y':
        case 'y':
            dip->y1 = value;
            break;
        case 'M':
        case 'm':
            dip->m1 = value;
            break;
        case 'D':
        case 'd':
            dip->d1 = value;
            break;
        default:
            return false;
        }
        it++;
        if (it == end) {
            return true;
        }
        if (*it == "/") {
            return true;
        }
    }
    return true;
}