/////////////////////////////////////////////////////////////////////////////////////////////////////
// OBJECT
/////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Initializes a new instance of the <c>LuatLexicalParser</c> class.
/// </summary>
public LuatLexicalParser()
{
// Initialize keywords
for (int index = (int)LuatTokenId.KeywordStart + 1; index < (int)LuatTokenId.KeywordEnd; index++)
{
keywords.Add(LuatTokenId.GetTokenKey(index).ToLowerInvariant(), index);
}
}
/// <summary>
/// Gets the token string representation for the specified token ID.
/// </summary>
/// <param name="tokenId">The ID of the token to examine.</param>
/// <returns>The token string representation for the specified token ID.</returns>
public override string GetTokenString(int tokenId)
{
if ((tokenId > LuatTokenId.KeywordStart) && (tokenId < LuatTokenId.KeywordEnd))
{
return(LuatTokenId.GetTokenKey(tokenId).ToLower());
}
switch (tokenId)
{
// General
case LuatTokenId.DocumentEnd:
return("Document end");
case LuatTokenId.Whitespace:
return("Whitespace");
case LuatTokenId.LineTerminator:
return("Line terminator");
case LuatTokenId.SingleLineComment:
return("Single-line comment");
case LuatTokenId.MultiLineComment:
return("Multi-line comment");
case LuatTokenId.Number:
return("Number");
case LuatTokenId.Identifier:
return("Identifier");
// Operators
case LuatTokenId.OpenCurlyBrace:
return("{");
case LuatTokenId.CloseCurlyBrace:
return("}");
case LuatTokenId.OpenParenthesis:
return("(");
case LuatTokenId.CloseParenthesis:
return(")");
case LuatTokenId.OpenSquareBracket:
return("[");
case LuatTokenId.CloseSquareBracket:
return("]");
case LuatTokenId.Comma:
return(",");
case LuatTokenId.SemiColon:
return(";");
case LuatTokenId.Addition:
return("+");
case LuatTokenId.Subtraction:
return("-");
case LuatTokenId.Multiplication:
return("*");
case LuatTokenId.Division:
return("/");
case LuatTokenId.Assignment:
return("=");
case LuatTokenId.Equality:
return("==");
case LuatTokenId.Inequality:
return("!=");
}
return(null);
}