internal static void SkipWhitespace(PositionalTokenizer tokenizer)
{
tokenizer.SkipWhitespace();
while (tokenizer.Match("//"))
{
var expressionTokenizer = tokenizer as ExpressionTokenizer;
if (expressionTokenizer != null)
{
int line = tokenizer.Line;
int column = tokenizer.Column - 2;
var comment = tokenizer.ReadTo('\n');
if (comment.Length > 0 && comment[comment.Length - 1] == '\r')
{
comment = comment.SubToken(0, comment.Length - 1);
}
expressionTokenizer.AddComment(new CommentExpression("//" + comment.ToString())
{
Location = new TextRange(line, column, line, column + comment.Length + 1)
});
}
else
{
tokenizer.ReadTo('\n');
}
tokenizer.SkipWhitespace();
}
}
private ParseErrorExpression ProcessRichPresenceDisplay(StringConstantExpression stringExpression, InterpreterScope scope, out string displayString)
{
displayString = null;
ExpressionBase result;
var varargs = GetParameter(scope, "varargs", out result) as ArrayExpression;
if (varargs == null)
{
var error = result as ParseErrorExpression;
if (error == null)
{
error = new ParseErrorExpression("unexpected varargs", stringExpression);
}
return(error);
}
var context = scope.GetContext <RichPresenceDisplayContext>();
var builder = context.DisplayString;
var tokenizer = new PositionalTokenizer(Tokenizer.CreateTokenizer(stringExpression.Value));
while (tokenizer.NextChar != '\0')
{
var token = tokenizer.ReadTo('{');
builder.Append(token.ToString());
if (tokenizer.NextChar == '\0')
{
break;
}
var positionalTokenColumn = tokenizer.Column;
tokenizer.Advance();
var index = tokenizer.ReadNumber();
if (tokenizer.NextChar != '}')
{
return(new ParseErrorExpression("Invalid positional token",
stringExpression.Line, stringExpression.Column + positionalTokenColumn,
stringExpression.Line, stringExpression.Column + tokenizer.Column - 1));
}
tokenizer.Advance();
var parameterIndex = Int32.Parse(index.ToString());
if (parameterIndex >= varargs.Entries.Count)
{
return(new ParseErrorExpression("Invalid parameter index: " + parameterIndex,
stringExpression.Line, stringExpression.Column + positionalTokenColumn,
stringExpression.Line, stringExpression.Column + tokenizer.Column - 1));
}
var functionCall = varargs.Entries[parameterIndex] as FunctionCallExpression;
var functionDefinition = scope.GetFunction(functionCall.FunctionName.Name);
if (functionDefinition == null)
{
return(new ParseErrorExpression("Unknown function: " + functionCall.FunctionName.Name));
}
var richPresenceFunction = functionDefinition as FunctionDefinition;
if (richPresenceFunction == null)
{
return(new ParseErrorExpression(functionCall.FunctionName.Name + " cannot be called as a rich_presence_display parameter", functionCall));
}
var error = richPresenceFunction.BuildMacro(context, scope, functionCall);
if (error != null)
{
return(new ParseErrorExpression(error, functionCall));
}
}
displayString = builder.ToString();
return(null);
}
public string GetFormattedErrorMessage(Tokenizer tokenizer)
{
var neededLines = new List <int>();
var error = Error;
while (error != null)
{
for (int i = error.Location.Start.Line; i <= error.Location.End.Line; i++)
{
if (!neededLines.Contains(i))
{
neededLines.Add(i);
}
}
error = error.InnerError;
}
neededLines.Sort();
var lineDictionary = new TinyDictionary <int, string>();
var positionalTokenizer = new PositionalTokenizer(tokenizer);
int lineIndex = 0;
while (lineIndex < neededLines.Count)
{
while (positionalTokenizer.NextChar != '\0' && positionalTokenizer.Line != neededLines[lineIndex])
{
positionalTokenizer.ReadTo('\n');
positionalTokenizer.Advance();
}
lineDictionary[neededLines[lineIndex]] = positionalTokenizer.ReadTo('\n').TrimRight().ToString();
lineIndex++;
}
var builder = new StringBuilder();
error = Error;
while (error != null)
{
builder.AppendFormat("{0}:{1} {2}", error.Location.Start.Line, error.Location.Start.Column, error.Message);
builder.AppendLine();
//for (int i = error.Line; i <= error.EndLine; i++)
int i = error.Location.Start.Line; // TODO: show all lines associated to error?
{
var line = lineDictionary[error.Location.Start.Line];
builder.Append(":: ");
var startColumn = 0;
while (Char.IsWhiteSpace(line[startColumn]))
{
startColumn++;
}
if (i == error.Location.Start.Line)
{
builder.Append("{{color|#C0C0C0|");
builder.Append(line.Substring(startColumn, error.Location.Start.Column - startColumn - 1));
builder.Append("}}");
startColumn = error.Location.Start.Column - 1;
}
if (i == error.Location.End.Line)
{
builder.Append(line.Substring(startColumn, error.Location.End.Column - startColumn));
builder.Append("{{color|#C0C0C0|");
builder.Append(line.Substring(error.Location.End.Column));
builder.Append("}}");
}
else
{
builder.Append(line.Substring(startColumn));
}
builder.AppendLine();
}
builder.AppendLine();
error = error.InnerError;
}
while (builder.Length > 0 && Char.IsWhiteSpace(builder[builder.Length - 1]))
{
builder.Length--;
}
return(builder.ToString());
}
public override bool Evaluate(InterpreterScope scope, out ExpressionBase result)
{
var stringExpression = GetStringParameter(scope, "format_string", out result);
if (stringExpression == null)
{
return(false);
}
var varargs = GetParameter(scope, "varargs", out result) as ArrayExpression;
if (varargs == null)
{
if (!(result is ParseErrorExpression))
{
result = new ParseErrorExpression("unexpected varargs", stringExpression);
}
return(false);
}
var builder = new StringBuilder();
var tokenizer = new PositionalTokenizer(Tokenizer.CreateTokenizer(stringExpression.Value));
while (tokenizer.NextChar != '\0')
{
var token = tokenizer.ReadTo('{');
builder.Append(token.ToString());
if (tokenizer.NextChar == '\0')
{
break;
}
var positionalTokenColumn = tokenizer.Column;
tokenizer.Advance();
if (tokenizer.NextChar == '}')
{
result = new ParseErrorExpression("Empty parameter index",
stringExpression.Location.Start.Line, stringExpression.Location.Start.Column + positionalTokenColumn,
stringExpression.Location.Start.Line, stringExpression.Location.Start.Column + tokenizer.Column - 1);
return(false);
}
var index = tokenizer.ReadNumber();
if (tokenizer.NextChar != '}')
{
result = new ParseErrorExpression("Invalid positional token",
stringExpression.Location.Start.Line, stringExpression.Location.Start.Column + positionalTokenColumn,
stringExpression.Location.Start.Line, stringExpression.Location.Start.Column + tokenizer.Column - 1);
return(false);
}
tokenizer.Advance();
Int32 parameterIndex;
if (!Int32.TryParse(index.ToString(), out parameterIndex) ||
parameterIndex < 0 || parameterIndex >= varargs.Entries.Count)
{
result = new ParseErrorExpression("Invalid parameter index: " + index.ToString(),
stringExpression.Location.Start.Line, stringExpression.Location.Start.Column + positionalTokenColumn,
stringExpression.Location.Start.Line, stringExpression.Location.Start.Column + tokenizer.Column - 1);
return(false);
}
result = varargs.Entries[parameterIndex];
var functionCall = result as FunctionCallExpression;
if (functionCall != null)
{
if (!functionCall.Evaluate(scope, out result))
{
return(false);
}
}
if (result.IsLiteralConstant)
{
result.AppendStringLiteral(builder);
}
else
{
result = new ParseErrorExpression("Cannot convert expression to string", result);
return(false);
}
}
result = new StringConstantExpression(builder.ToString());
return(true);
}
