// Reads a line in the script as a command.
protected virtual bool PerformCommand(string commandName, CommandParam parameters)
{
List <string> matchingFormats = new List <string>();
CommandParam newParams = null;
// Search for the correct command.
for (int i = 0; i < commands.Count; i++)
{
ScriptCommand command = commands[i];
if (command.HasName(commandName))
{
if (command.HasParameters(parameters, out newParams))
{
// Run the command.
command.Action(newParams);
return(true);
}
else
{
// Preemptively append the possible overloads to the error message.
for (int j = 0; j < command.ParameterOverloads.Count; j++)
{
matchingFormats.Add(command.Name + " " +
CommandParamParser.ToString(command.ParameterOverloads[j]));
}
}
}
}
// Throw an error because the command was not found.
if (matchingFormats.Count > 0)
{
Console.WriteLine(CommandParamParser.ToString(parameters));
string msg = "No matching overload found for the command " + commandName + "\n";
msg += "Possible overloads include:\n";
for (int i = 0; i < matchingFormats.Count; i++)
{
msg += " * " + matchingFormats[i];
if (i + 1 < matchingFormats.Count)
{
msg += "\n";
}
}
ThrowCommandParseError(msg);
}
else
{
ThrowCommandParseError(commandName + " is not a valid command");
}
return(false);
}
private static object[] _GetParams(Type type, string command, string args, CommandParamParser[] command_param_parsers)
{
string pattern = @"[\w\.]+";
var rgx = new System.Text.RegularExpressions.Regex(pattern, System.Text.RegularExpressions.RegexOptions.IgnoreCase);
var matches = rgx.Matches(args);
var method = type.GetMethod(command, System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance);
if (method != null)
{
var parameterInfos = method.GetParameters().ToArray();
var argments = (from System.Text.RegularExpressions.Match match in matches select match.Value).ToArray();
object[] retArgs = new object[parameterInfos.Count()];
for (int i = 0; i < parameterInfos.Count(); ++i)
{
var parser = (from cpp in command_param_parsers where cpp.Type == parameterInfos[i].ParameterType select cpp.Parser).FirstOrDefault();
if (parser != null)
{
try
{
retArgs[i] = parser.Invoke(argments[i]);
}
catch(SystemException e)
{
throw new SystemException("參數解析失敗" + e.ToString());
}
}
else
{
retArgs[i] = parameterInfos[i].DefaultValue;
}
}
return retArgs;
}
return null;
}
// 填入解析參數 , 命令參數皆由string 傳入 , 匹配對應的傳出值
// P.S 最少要實做 int float string
public void Initialize(CommandParamParser[] parsers)
{
_CommandParamParsers = parsers;
}
