Function FiosMakeFilename

src/fios.cpp:194–209

* Construct a filename from its components in destination buffer \a buf. * @param path Directory path, may be \c nullptr. * @param name Filename. * @param ext Filename extension (use \c "" for no extension). * @return The completed filename. */

 * @return The completed filename.
 */
static std::string FiosMakeFilename(const std::string *path, std::string_view name, std::string_view ext)
{
	std::string_view base_path;

	if (path != nullptr) {
		base_path = *path;
		/* Remove trailing path separator, if present */
		if (!base_path.empty() && base_path.back() == PATHSEPCHAR) base_path.remove_suffix(1);
	}

	/* Don't append the extension if it is already there */
	auto period = name.find_last_of('.');
	if (period != std::string_view::npos && StrEqualsIgnoreCase(name.substr(period), ext)) ext = "";

	return fmt::format("{}{}{}{}", base_path, PATHSEP, name, ext);
}

/**
 * Make a save game or scenario filename from a name.