public static ASLScript Parse(string code)
{
var grammar = new ASLGrammar();
var parser = new Parser(grammar);
var tree = parser.Parse(code);
if (tree.HasErrors())
throw new Exception("ASL parse error(s): " + string.Join("\n", tree.ParserMessages));
var root_childs = tree.Root.ChildNodes;
var methods_node = root_childs.First(x => x.Term.Name == "methodList");
var states_node = root_childs.First(x => x.Term.Name == "stateList");
var states = new Dictionary<string, List<ASLState>>();
foreach (var state_node in states_node.ChildNodes)
{
var process_name = (string)state_node.ChildNodes[2].Token.Value;
var version =
state_node.ChildNodes[3].ChildNodes.Skip(1).Select(x => (string) x.Token.Value).FirstOrDefault() ??
string.Empty;
var value_definition_nodes = state_node.ChildNodes[6].ChildNodes;
var state = new ASLState();
foreach (var value_definition_node in value_definition_nodes.Where(x => x.ChildNodes.Count > 0))
{
var child_nodes = value_definition_node.ChildNodes;
var type = (string)child_nodes[0].Token.Value;
var identifier = (string)child_nodes[1].Token.Value;
var module =
child_nodes[3].ChildNodes.Take(1).Select(x => (string) x.Token.Value).FirstOrDefault() ??
string.Empty;
var module_base = child_nodes[4].ChildNodes.Select(x => (int)x.Token.Value).First();
var offsets = child_nodes[4].ChildNodes.Skip(1).Select(x => (int)x.Token.Value).ToArray();
var value_definition = new ASLValueDefinition()
{
Identifier = identifier,
Type = type,
Pointer = new DeepPointer(module, module_base, offsets)
};
state.ValueDefinitions.Add(value_definition);
}
state.GameVersion = version;
if (!states.ContainsKey(process_name))
states.Add(process_name, new List<ASLState>());
states[process_name].Add(state);
}
var methods = new ASLScript.Methods();
foreach (var method in methods_node.ChildNodes[0].ChildNodes)
{
var method_name = (string)method.ChildNodes[0].Token.Value;
var script = new ASLMethod((string)method.ChildNodes[2].Token.Value);
switch (method_name)
{
case "init": methods.init = script; break;
case "exit": methods.exit = script; break;
case "update": methods.update = script; break;
case "start": methods.start = script; break;
case "split": methods.split = script; break;
case "isLoading": methods.isLoading = script; break;
case "gameTime": methods.gameTime = script; break;
case "reset": methods.reset = script; break;
case "startup": methods.startup = script; break;
case "shutdown": methods.shutdown = script; break;
}
}
return new ASLScript(methods, states);
}
public static ASLScript Parse(string code)
{
var grammar = new ASLGrammar();
var parser = new Parser(grammar);
var tree = parser.Parse(code);
if (tree.HasErrors())
{
var error_msg = new StringBuilder("ASL parse error(s):");
foreach (var msg in parser.Context.CurrentParseTree.ParserMessages)
{
var loc = msg.Location;
error_msg.Append($"\nat Line {loc.Line + 1}, Col {loc.Column + 1}: {msg.Message}");
}
throw new Exception(error_msg.ToString());
}
var root_childs = tree.Root.ChildNodes;
var methods_node = root_childs.First(x => x.Term.Name == "methodList");
var states_node = root_childs.First(x => x.Term.Name == "stateList");
var states = new Dictionary <string, List <ASLState> >();
foreach (var state_node in states_node.ChildNodes)
{
var process_name = (string)state_node.ChildNodes[2].Token.Value;
var version =
state_node.ChildNodes[3].ChildNodes.Skip(1).Select(x => (string)x.Token.Value).FirstOrDefault() ??
string.Empty;
var value_definition_nodes = state_node.ChildNodes[6].ChildNodes;
var state = new ASLState();
foreach (var value_definition_node in value_definition_nodes.Where(x => x.ChildNodes.Count > 0))
{
var child_nodes = value_definition_node.ChildNodes;
var type = (string)child_nodes[0].Token.Value;
var identifier = (string)child_nodes[1].Token.Value;
var module =
child_nodes[3].ChildNodes.Take(1).Select(x => (string)x.Token.Value).FirstOrDefault() ??
string.Empty;
var module_base = child_nodes[4].ChildNodes.Select(x => (long)x.Token.Value).First();
var offsets = child_nodes[4].ChildNodes.Skip(1).Select(x => (long)x.Token.Value).ToArray();
var value_definition = new ASLValueDefinition()
{
Identifier = identifier,
Type = type,
Pointer = new DeepPointer(module, module_base, offsets)
};
state.ValueDefinitions.Add(value_definition);
}
state.GameVersion = version;
if (!states.ContainsKey(process_name))
{
states.Add(process_name, new List <ASLState>());
}
states[process_name].Add(state);
}
var methods = new ASLScript.Methods();
foreach (var method in methods_node.ChildNodes[0].ChildNodes)
{
var body = (string)method.ChildNodes[2].Token.Value;
var method_name = (string)method.ChildNodes[0].Token.Value;
var line = method.ChildNodes[2].Token.Location.Line + 1;
var script = new ASLMethod(body, method_name, line)
{
ScriptMethods = methods
};
switch (method_name)
{
case "init": methods.init = script; break;
case "exit": methods.exit = script; break;
case "update": methods.update = script; break;
case "start": methods.start = script; break;
case "split": methods.split = script; break;
case "isLoading": methods.isLoading = script; break;
case "gameTime": methods.gameTime = script; break;
case "reset": methods.reset = script; break;
case "startup": methods.startup = script; break;
case "shutdown": methods.shutdown = script; break;
}
}
return(new ASLScript(methods, states));
}
