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-rw-r--r--src/Configuration.cpp179
1 files changed, 166 insertions, 13 deletions
diff --git a/src/Configuration.cpp b/src/Configuration.cpp
index 2a5e69f7..9c9402c0 100644
--- a/src/Configuration.cpp
+++ b/src/Configuration.cpp
@@ -14,24 +14,27 @@
along with Ingen. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <iostream>
+
#include "ingen/Configuration.hpp"
namespace Ingen {
Configuration::Configuration()
- : Raul::Configuration(
- "A realtime modular audio processor.",
- "Ingen is a flexible modular system that be used in various ways.\n"
- "The engine can run as a stand-alone server controlled via network protocol,\n"
- "or internal to another process (e.g. the GUI). The GUI, or other\n"
- "clients, can communicate with the engine via any supported protocol, or host the\n"
- "engine in the same process. Many clients can connect to an engine at once.\n\n"
- "Examples:\n"
- " ingen -e # Run an engine, listen for connections\n"
- " ingen -g # Run a GUI, connect to running engine\n"
- " ingen -eg # Run an engine and a GUI in one process\n"
- " ingen -egl foo.ttl # Run an engine and a GUI and load a graph\n"
- " ingen -egl foo.ingen # Run an engine and a GUI and load a graph")
+ : _shortdesc("A realtime modular audio processor.")
+ , _desc(
+"Ingen is a flexible modular system that be used in various ways.\n"
+"The engine can run as a stand-alone server controlled via network protocol,\n"
+"or internal to another process (e.g. the GUI). The GUI, or other\n"
+"clients, can communicate with the engine via any supported protocol, or host the\n"
+"engine in the same process. Many clients can connect to an engine at once.\n\n"
+"Examples:\n"
+" ingen -e # Run an engine, listen for connections\n"
+" ingen -g # Run a GUI, connect to running engine\n"
+" ingen -eg # Run an engine and a GUI in one process\n"
+" ingen -egl foo.ttl # Run an engine and a GUI and load a graph\n"
+" ingen -egl foo.ingen # Run an engine and a GUI and load a graph")
+ , _max_name_length(0)
{
add("client-port", 'C', "Client port", INT, Value());
add("connect", 'c', "Connect to engine URI", STRING, Value("unix:///tmp/ingen.sock"));
@@ -50,4 +53,154 @@ Configuration::Configuration()
add("run", 'r', "Run script", STRING, Value());
}
+/** Add a configuration option.
+ *
+ * @param name Long name (without leading "--")
+ * @param letter Short name (without leading "-")
+ * @param desc Description
+ * @param type Type
+ * @param value Default value
+ */
+Configuration&
+Configuration::add(
+ const std::string& name,
+ char letter,
+ const std::string& desc,
+ const OptionType type,
+ const Value& value)
+{
+ assert(value.type() == type || value.type() == 0);
+ _max_name_length = std::max(_max_name_length, name.length());
+ _options.insert(make_pair(name, Option(name, letter, desc, type, value)));
+ if (letter != '\0') {
+ _short_names.insert(make_pair(letter, name));
+ }
+ return *this;
+}
+
+void
+Configuration::print_usage(const std::string& program, std::ostream& os)
+{
+ os << "Usage: " << program << " [OPTION]..." << std::endl;
+ os << _shortdesc << std::endl << std::endl;
+ os << _desc << std::endl << std::endl;
+ os << "Options:" << std::endl;
+ for (Options::iterator o = _options.begin(); o != _options.end(); ++o) {
+ Option& option = o->second;
+ os << " ";
+ if (option.letter != '\0')
+ os << "-" << option.letter << ", ";
+ else
+ os << " ";
+ os.width(_max_name_length + 4);
+ os << std::left << (std::string("--") + o->first);
+ os << option.desc << std::endl;
+ }
+}
+
+int
+Configuration::set_value_from_string(Configuration::Option& option,
+ const std::string& value)
+ throw (Configuration::CommandLineError)
+{
+ int intval = 0;
+ char* endptr = NULL;
+ switch (option.type) {
+ case INT:
+ intval = static_cast<int>(strtol(value.c_str(), &endptr, 10));
+ if (endptr && *endptr == '\0') {
+ option.value = Value(intval);
+ } else {
+ throw CommandLineError("option `" + option.name
+ + "' has non-integer value `" + value + "'");
+ }
+ break;
+ case STRING:
+ option.value = Value(value.c_str());
+ assert(option.value.type() == STRING);
+ break;
+ default:
+ throw CommandLineError(std::string("bad option type `--") + option.name + "'");
+ }
+ return EXIT_SUCCESS;
+}
+
+/** Parse command line arguments. */
+void
+Configuration::parse(int argc, char** argv) throw (Configuration::CommandLineError)
+{
+ for (int i = 1; i < argc; ++i) {
+ if (argv[i][0] != '-' || !strcmp(argv[i], "-")) {
+ _files.push_back(argv[i]);
+ } else if (argv[i][1] == '-') {
+ const std::string name = std::string(argv[i]).substr(2);
+ Options::iterator o = _options.find(name);
+ if (o == _options.end()) {
+ throw CommandLineError(std::string("unrecognized option `--") + name + "'");
+ }
+ if (o->second.type == BOOL) {
+ o->second.value = Value(true);
+ } else {
+ if (++i >= argc)
+ throw CommandLineError("missing value for `--" + name + "'");
+ set_value_from_string(o->second, argv[i]);
+ }
+ } else {
+ const size_t len = strlen(argv[i]);
+ for (size_t j = 1; j < len; ++j) {
+ char letter = argv[i][j];
+ ShortNames::iterator n = _short_names.find(letter);
+ if (n == _short_names.end())
+ throw CommandLineError(std::string("unrecognized option `-") + letter + "'");
+ Options::iterator o = _options.find(n->second);
+ if (j < len - 1) {
+ if (o->second.type != BOOL)
+ throw CommandLineError(std::string("missing value for `-") + letter + "'");
+ o->second.value = Value(true);
+ } else {
+ if (o->second.type == BOOL) {
+ o->second.value = Value(true);
+ } else {
+ if (++i >= argc)
+ throw CommandLineError(std::string("missing value for `-") + letter + "'");
+ set_value_from_string(o->second, argv[i]);
+ }
+ }
+ }
+ }
+ }
+}
+
+void
+Configuration::print(std::ostream& os, const std::string mime_type) const
+{
+ for (Options::const_iterator o = _options.begin(); o != _options.end(); ++o) {
+ const Option& option = o->second;
+ os << o->first << " = " << option.value << std::endl;
+ }
+}
+
+const Configuration::Value&
+Configuration::option(const std::string& long_name) const
+{
+ static const Value nil;
+ Options::const_iterator o = _options.find(long_name);
+ if (o == _options.end()) {
+ return nil;
+ } else {
+ return o->second.value;
+ }
+}
+
+bool
+Configuration::set(const std::string& long_name, const Value& value)
+{
+ Options::iterator o = _options.find(long_name);
+ if (o != _options.end()) {
+ o->second.value = value;
+ return true;
+ }
+ return false;
+}
+
} // namespace Ingen