static std::string argvToCommandLine()

in src/unix-adapter/main.cc [323:358]

• 36 lines of code
• 10 McCabe index (conditional complexity)

static std::string argvToCommandLine(const std::vector<std::string> &argv)
{
    std::string result;
    for (size_t argIndex = 0; argIndex < argv.size(); ++argIndex) {
        if (argIndex > 0)
            result.push_back(' ');
        const char *arg = argv[argIndex].c_str();
        const bool quote =
            strchr(arg, ' ') != NULL ||
            strchr(arg, '\t') != NULL ||
            *arg == '\0';
        if (quote)
            result.push_back('\"');
        int bsCount = 0;
        for (const char *p = arg; *p != '\0'; ++p) {
            if (*p == '\\') {
                bsCount++;
            } else if (*p == '\"') {
                result.append(bsCount * 2 + 1, '\\');
                result.push_back('\"');
                bsCount = 0;
            } else {
                result.append(bsCount, '\\');
                bsCount = 0;
                result.push_back(*p);
            }
        }
        if (quote) {
            result.append(bsCount * 2, '\\');
            result.push_back('\"');
        } else {
            result.append(bsCount, '\\');
        }
    }
    return result;
}