//-----------------------------------------------------------------------------
// Array Methods
//-----------------------------------------------------------------------------
// Get an enumerable list of an array paraneter's children.
public IEnumerable <CommandReferenceParam> GetChildren()
{
for (CommandReferenceParam child = children; child != null; child = child.nextParam)
{
yield return(child);
}
}
//-----------------------------------------------------------------------------
// Command Parameter ToString
//-----------------------------------------------------------------------------
// Returns a string representation of a reference command parameter.
public static string ToString(CommandReferenceParam param)
{
string result = "";
if (param.Type == CommandParamType.Array)
{
result += "(";
CommandReferenceParam child = param.Children;
while (child != null)
{
result += ToString(child);
if (child.NextParam != null)
{
result += ", ";
}
child = child.NextParam;
}
result += ")";
}
else
{
if (param.Type == CommandParamType.String)
{
result += "string";
}
else if (param.Type == CommandParamType.Integer)
{
result += "int";
}
else if (param.Type == CommandParamType.Float)
{
result += "float";
}
else if (param.Type == CommandParamType.Boolean)
{
result += "bool";
}
else if (param.Type == CommandParamType.Any)
{
result += "var";
}
result += " " + param.Name;
}
// Show the variadic ellipses.
if (param.IsVariadic)
{
result += "...";
}
// Append the default value.
if (param.DefaultValue != null)
{
result += " = " + ToString(param.DefaultValue);
}
return(result);
}
public ScriptCommand(string name, string[] parameterOverloads, Action <CommandParam> action) :
this(name, action)
{
for (int i = 0; i < parameterOverloads.Length; i++)
{
CommandReferenceParam p = CommandParamParser.ParseReferenceParams(parameterOverloads[i]);
p.Name = parameterOverloads[i];
this.parameterOverloads.Add(p);
}
}
private static void CompleteToken(ParseData data)
{
bool isVariadic = false;
if (data.Token.EndsWith("..."))
{
data.Token = data.Token.Substring(0, data.Token.Length - 3);
isVariadic = true;
}
if (data.Token.Length > 0 || isVariadic)
{
if (data.Token.Length > 0)
{
data.Tokens.Add(data.Token);
}
if (data.IsParsingValue && data.Token.Length > 0)
{
CommandParam p;
if (data.IsParsingDefaultValue)
{
CommandReferenceParam refParam = data.RefParamStack
.Peek().GetChildren().ElementAt(data.ValParamStack.Peek().ChildCount);
p = new CommandParam(refParam);
p.SetValueByParse(data.Tokens[0]);
}
else
{
p = new CommandParam(data.Tokens[0]);
}
data.ValParamStack.Peek().AddChild(p);
data.Tokens.Clear();
}
if (!data.IsParsingValue)
{
if (data.Token.Length > 0 && data.Tokens.Count == 2)
{
data.RefParamStack.Peek().AddChild(new CommandReferenceParam()
{
Type = ParseCommandParamType(data.Tokens[0]),
Name = data.Tokens[1],
IsVariadic = isVariadic
});
data.Tokens.Clear();
}
else if (isVariadic)
{
data.RefParamStack.Peek().GetChildren().Last().IsVariadic = true;
}
}
data.Token = "";
}
}
public CommandReferenceParam(CommandParamType type)
{
this.type = type;
this.nextParam = null;
this.parent = null;
this.children = null;
this.defaultValue = null;
this.value = null;
this.name = "";
if (type == CommandParamType.Array)
value = (int) 0;
}
public CommandReferenceParam(CommandParamType type)
{
this.type = type;
this.nextParam = null;
this.parent = null;
this.children = null;
this.defaultValue = null;
this.value = null;
this.name = "";
if (type == CommandParamType.Array)
{
value = (int)0;
}
}
public CommandParam(CommandReferenceParam referenceParam) :
this()
{
this.name = referenceParam.Name;
this.type = referenceParam.Type;
// Copy array children.
this.count = 0;
if (type == CommandParamType.Array)
{
CommandReferenceParam copyChild = referenceParam.Children;
while (copyChild != null)
{
AddChild(new CommandParam(copyChild));
copyChild = copyChild.NextParam;
}
}
}
//-----------------------------------------------------------------------------
// Command Parameter ToString
//-----------------------------------------------------------------------------
// Returns a string representation of a reference command parameter.
public static string ToString(CommandReferenceParam param)
{
string result = "";
if (param.Type == CommandParamType.Array) {
result += "(";
CommandReferenceParam child = param.Children;
while (child != null) {
result += ToString(child);
if (child.NextParam != null)
result += ", ";
child = child.NextParam;
}
result += ")";
}
else {
if (param.Type == CommandParamType.String)
result += "string";
else if (param.Type == CommandParamType.Integer)
result += "int";
else if (param.Type == CommandParamType.Float)
result += "float";
else if (param.Type == CommandParamType.Boolean)
result += "bool";
else if (param.Type == CommandParamType.Any)
result += "var";
result += " " + param.Name;
}
// Show the variadic ellipses.
if (param.IsVariadic)
result += "...";
// Append the default value.
if (param.DefaultValue != null) {
result += " = " + ToString(param.DefaultValue);
}
return result;
}
// Add a parameter child.
public CommandReferenceParam AddChild(CommandReferenceParam child)
{
if (type == CommandParamType.Array)
{
if (children == null)
{
children = child;
value = (int)1;
}
else
{
CommandReferenceParam lastChild = children;
while (lastChild.NextParam != null)
{
lastChild = lastChild.NextParam;
}
lastChild.nextParam = child;
value = ((int)value + 1);
}
}
return(child);
}
//-----------------------------------------------------------------------------
// Constructor
//-----------------------------------------------------------------------------
// Recursively check whether the parameters are matching, outputting the new parameters.
private static bool AreParametersMatching(CommandReferenceParam reference, CommandParam userParams, out CommandParam newParameters)
{
newParameters = null;
if (reference == null)
{
newParameters = new CommandParam(userParams);
return(true);
}
if (!userParams.IsValidType(reference.Type))
{
newParameters = null;
return(false);
}
// Make sure arrays are matching.
if (reference.Type == CommandParamType.Array)
{
newParameters = new CommandParam(CommandParamType.Array);
newParameters.Name = reference.Name;
// Find the child index of the first parameter with a default value.
int defaultIndex = 0;
for (CommandReferenceParam p = reference.Children; p != null; p = p.NextParam)
{
if (p.DefaultValue != null)
{
break;
}
defaultIndex++;
}
// Check if the reference is variadic on the last parameter.
CommandReferenceParam lastRefChild = reference.GetChildren().LastOrDefault();
bool isVariadic = false;
if (lastRefChild != null && lastRefChild.IsVariadic)
{
isVariadic = true;
}
// Verify the user parameter's child count is within the valid range.
if (userParams.ChildCount < defaultIndex ||
(userParams.ChildCount > reference.ChildCount && !isVariadic))
{
newParameters = null;
return(false);
}
// Verify each child paremeter matches the reference.
CommandReferenceParam referenceChild = reference.Children;
CommandParam userChild = userParams.Children;
int count = reference.ChildCount;
if (isVariadic)
{
count = Math.Max(count, userParams.ChildCount);
}
for (int i = 0; i < count; i++)
{
CommandParam newChild;
if (i < userParams.ChildCount)
{
if (!AreParametersMatching(referenceChild, userChild, out newChild))
{
newParameters = null;
return(false);
}
userChild = userChild.NextParam;
}
else
{
newChild = new CommandParam(referenceChild.DefaultValue);
}
newParameters.AddChild(newChild);
if (referenceChild.NextParam != null)
{
referenceChild = referenceChild.NextParam;
}
}
}
else
{
if (userParams.Type == CommandParamType.Array)
{
newParameters = new CommandParam(CommandParamType.Array);
foreach (CommandParam userChild in userParams.GetChildren())
{
newParameters.AddChild(new CommandParam(userChild));
}
}
else
{
newParameters = new CommandParam(reference);
newParameters.SetValueByParse(userParams.StringValue);
}
}
return(true);
}
private static ParseData ParseParameters(string format, bool parseValue)
{
ParseData parseData = new ParseData();
parseData.RefParamStack = new Stack<CommandReferenceParam>();
parseData.ValParamStack = new Stack<CommandParam>();
parseData.Tokens = new List<string>();
parseData.Token = "";
parseData.IsParsingValue = parseValue;
// Create the root parameter.
if (parseData.IsParsingValue)
parseData.ValParamStack.Push(new CommandParam(CommandParamType.Array));
else
parseData.RefParamStack.Push(new CommandReferenceParam(CommandParamType.Array));
// Parse the format, character by character.
bool quotes = false;
for (int i = 0; i < format.Length; i++) {
char c = format[i];
// Parse strings between quotes.
if (quotes) {
if (c == '"') {
quotes = false;
CompleteToken(parseData);
}
else
parseData.Token += c;
}
else if (c == '"')
quotes = true;
// Whitespace.
else if (c == ' ' || c == '\t')
CompleteToken(parseData);
// Parameter delimiter (comma)
else if (c == ',') {
CompleteToken(parseData);
CompleteDefaultValue(parseData);
}
// Parameter array begin
else if (c == '(') {
if (parseData.IsParsingValue) {
if (parseData.IsParsingDefaultValue) {
parseData.RefParamStack.Push(parseData.RefParamStack.Peek()
.GetChildren().ElementAt(parseData.ValParamStack.Peek().ChildCount));
}
parseData.ValParamStack.Push(parseData.ValParamStack.Peek()
.AddChild(new CommandParam(CommandParamType.Array)));
}
else {
parseData.RefParamStack.Push(parseData.RefParamStack.Peek()
.AddChild(new CommandReferenceParam(CommandParamType.Array)));
}
}
// Parameter array end.
else if (c == ')') {
CompleteToken(parseData);
if (parseData.IsParsingValue)
parseData.ValParamStack.Pop();
if (!parseData.IsParsingValue || (parseData.IsParsingValue && parseData.IsParsingDefaultValue))
parseData.RefParamStack.Pop();
}
// Default parameter value.
else if (c == '=') {
parseData.IsParsingValue = true;
parseData.IsParsingDefaultValue = true;
CommandReferenceParam refParent = new CommandReferenceParam(CommandParamType.Array);
refParent.AddChild(parseData.RefParamStack.Peek().GetChildren().Last());
parseData.RefParamStack.Push(refParent);
parseData.ValParamStack.Push(new CommandParam(CommandParamType.Array));
}
//else if (c == '.') { TODO: variadic parameters.
//}
else {
parseData.Token += c;
}
}
CompleteToken(parseData);
CompleteDefaultValue(parseData);
return parseData;
}
public CommandParam(CommandReferenceParam referenceParam)
: this()
{
this.name = referenceParam.Name;
this.type = referenceParam.Type;
// Copy array children.
this.count = 0;
if (type == CommandParamType.Array) {
CommandReferenceParam copyChild = referenceParam.Children;
while (copyChild != null) {
AddChild(new CommandParam(copyChild));
copyChild = copyChild.NextParam;
}
}
}
//-----------------------------------------------------------------------------
// Constructor
//-----------------------------------------------------------------------------
// Recursively check whether the parameters are matching, outputting the new parameters.
private static bool AreParametersMatching(CommandReferenceParam reference, CommandParam userParams, out CommandParam newParameters)
{
newParameters = null;
if (reference == null) {
newParameters = new CommandParam(userParams);
return true;
}
if (!userParams.IsValidType(reference.Type)) {
newParameters = null;
return false;
}
// Make sure arrays are matching.
if (reference.Type == CommandParamType.Array) {
newParameters = new CommandParam(CommandParamType.Array);
newParameters.Name = reference.Name;
// Find the child index of the first parameter with a default value.
int defaultIndex = 0;
for (CommandReferenceParam p = reference.Children; p != null; p = p.NextParam) {
if (p.DefaultValue != null)
break;
defaultIndex++;
}
// Check if the reference is variadic on the last parameter.
CommandReferenceParam lastRefChild = reference.GetChildren().LastOrDefault();
bool isVariadic = false;
if (lastRefChild != null && lastRefChild.IsVariadic)
isVariadic = true;
// Verify the user parameter's child count is within the valid range.
if (userParams.ChildCount < defaultIndex ||
(userParams.ChildCount > reference.ChildCount && !isVariadic))
{
newParameters = null;
return false;
}
// Verify each child paremeter matches the reference.
CommandReferenceParam referenceChild = reference.Children;
CommandParam userChild = userParams.Children;
int count = reference.ChildCount;
if (isVariadic)
count = Math.Max(count, userParams.ChildCount);
for (int i = 0; i < count; i++) {
CommandParam newChild;
if (i < userParams.ChildCount) {
if (!AreParametersMatching(referenceChild, userChild, out newChild)) {
newParameters = null;
return false;
}
userChild = userChild.NextParam;
}
else {
newChild = new CommandParam(referenceChild.DefaultValue);
}
newParameters.AddChild(newChild);
if (referenceChild.NextParam != null)
referenceChild = referenceChild.NextParam;
}
}
else {
if (userParams.Type == CommandParamType.Array) {
newParameters = new CommandParam(CommandParamType.Array);
foreach (CommandParam userChild in userParams.GetChildren())
newParameters.AddChild(new CommandParam(userChild));
}
else {
newParameters = new CommandParam(reference);
newParameters.SetValueByParse(userParams.StringValue);
}
}
return true;
}
// Add a parameter child.
public CommandReferenceParam AddChild(CommandReferenceParam child)
{
if (type == CommandParamType.Array) {
if (children == null) {
children = child;
value = (int) 1;
}
else {
CommandReferenceParam lastChild = children;
while (lastChild.NextParam != null)
lastChild = lastChild.NextParam;
lastChild.nextParam = child;
value = ((int) value + 1);
}
}
return child;
}
private static ParseData ParseParameters(string format, bool parseValue)
{
ParseData parseData = new ParseData();
parseData.RefParamStack = new Stack <CommandReferenceParam>();
parseData.ValParamStack = new Stack <CommandParam>();
parseData.Tokens = new List <string>();
parseData.Token = "";
parseData.IsParsingValue = parseValue;
// Create the root parameter.
if (parseData.IsParsingValue)
{
parseData.ValParamStack.Push(new CommandParam(CommandParamType.Array));
}
else
{
parseData.RefParamStack.Push(new CommandReferenceParam(CommandParamType.Array));
}
// Parse the format, character by character.
bool quotes = false;
for (int i = 0; i < format.Length; i++)
{
char c = format[i];
// Parse strings between quotes.
if (quotes)
{
if (c == '"')
{
quotes = false;
CompleteToken(parseData);
}
else
{
parseData.Token += c;
}
}
else if (c == '"')
{
quotes = true;
}
// Whitespace.
else if (c == ' ' || c == '\t')
{
CompleteToken(parseData);
}
// Parameter delimiter (comma)
else if (c == ',')
{
CompleteToken(parseData);
CompleteDefaultValue(parseData);
}
// Parameter array begin
else if (c == '(')
{
if (parseData.IsParsingValue)
{
if (parseData.IsParsingDefaultValue)
{
parseData.RefParamStack.Push(parseData.RefParamStack.Peek()
.GetChildren().ElementAt(parseData.ValParamStack.Peek().ChildCount));
}
parseData.ValParamStack.Push(parseData.ValParamStack.Peek()
.AddChild(new CommandParam(CommandParamType.Array)));
}
else
{
parseData.RefParamStack.Push(parseData.RefParamStack.Peek()
.AddChild(new CommandReferenceParam(CommandParamType.Array)));
}
}
// Parameter array end.
else if (c == ')')
{
CompleteToken(parseData);
if (parseData.IsParsingValue)
{
parseData.ValParamStack.Pop();
}
if (!parseData.IsParsingValue || (parseData.IsParsingValue && parseData.IsParsingDefaultValue))
{
parseData.RefParamStack.Pop();
}
}
// Default parameter value.
else if (c == '=')
{
parseData.IsParsingValue = true;
parseData.IsParsingDefaultValue = true;
CommandReferenceParam refParent = new CommandReferenceParam(CommandParamType.Array);
refParent.AddChild(parseData.RefParamStack.Peek().GetChildren().Last());
parseData.RefParamStack.Push(refParent);
parseData.ValParamStack.Push(new CommandParam(CommandParamType.Array));
}
//else if (c == '.') { TODO: variadic parameters.
//}
else
{
parseData.Token += c;
}
}
CompleteToken(parseData);
CompleteDefaultValue(parseData);
return(parseData);
}
