Function GetOptS3

gpcontrib/gpcloud/src/s3utils.cpp:437–455

GetOptS3 returns first value according to given key. key=value pair are separated by whitespace.

// GetOptS3 returns first value according to given key.
// key=value pair are separated by whitespace.
string GetOptS3(const string &urlWithOptions, const string &key) {
    string keyStr = " ";
    keyStr += key;
    keyStr += "=";

    size_t beginIndex = urlWithOptions.find(keyStr);
    if (beginIndex == urlWithOptions.npos) {
        return "";
    } else {
        beginIndex += keyStr.length();
        size_t endIndex = urlWithOptions.find(" ", beginIndex);

        if (endIndex == urlWithOptions.npos) {
            return urlWithOptions.substr(beginIndex);
        } else {
            return urlWithOptions.substr(beginIndex, endIndex - beginIndex);
        }
    }
}

// TruncateOptions truncates substring after first whitespace.
string TruncateOptions(const string &urlWithOptions) {