Method findInputFile

src/base/application.cpp:313–376

}

string Application::findInputFile(const string& name)
{
    std::unique_lock<std::mutex> dirLock(dir_mutex);
    string::size_type islash = name.find('/');
    string::size_type ibslash = name.find('\\');
    string::size_type icolon = name.find(':');
    vector<string>& dirs = inputDirs;

    // Expand "~/" to user's home directory, if possible
    if (name.find("~/") == 0 || name.find("~\\") == 0) {
        char* home = getenv("HOME"); // POSIX systems
        if (!home) {
            home = getenv("USERPROFILE"); // Windows systems
        }
        if (home) {
            string full_name = home + name.substr(1, npos);
            std::ifstream fin(full_name);
            if (fin) {
                return full_name;
            } else {
                throw CanteraError("Application::findInputFile",
                                   "Input file '{}' not found", name);
            }
        }
    }

    // If this is an absolute path, just look for the file there
    if (islash == 0 || ibslash == 0
        || (icolon == 1 && (ibslash == 2 || islash == 2)))
    {
        std::ifstream fin(name);
        if (fin) {
            return name;
        } else {
            throw CanteraError("Application::findInputFile",
                               "Input file '{}' not found", name);
        }
    }

    // Search the Cantera data directories for the input file, and return
    // the full path if a match is found
    size_t nd = dirs.size();
    for (size_t i = 0; i < nd; i++) {
        string full_name = dirs[i] + "/" + name;
        std::ifstream fin(full_name);
        if (fin) {
            return full_name;
        }
    }
    string msg = "\nInput file " + name + " not found in director";
    msg += (nd == 1 ? "y " : "ies ");
    for (size_t i = 0; i < nd; i++) {
        msg += "\n'" + dirs[i] + "'";
        if (i+1 < nd) {
            msg += ", ";
        }
    }
    msg += "\n\n";