private static void CompleteToken(ref SqlTokenizationType? currentTokenizationType, ITokenList tokenContainer, StringBuilder currentValue)
{
if (currentTokenizationType == null)
throw new Exception("Cannot complete Token, as there is no current Tokenization Type");
switch (currentTokenizationType)
{
case SqlTokenizationType.BlockComment:
tokenContainer.Add(new Token(SqlTokenType.MultiLineComment, currentValue.ToString()));
break;
case SqlTokenizationType.OtherNode:
tokenContainer.Add(new Token(SqlTokenType.OtherNode, currentValue.ToString()));
break;
case SqlTokenizationType.PseudoName:
tokenContainer.Add(new Token(SqlTokenType.PseudoName, currentValue.ToString()));
break;
case SqlTokenizationType.SingleLineComment:
tokenContainer.Add(new Token(SqlTokenType.SingleLineComment, currentValue.ToString()));
break;
case SqlTokenizationType.SingleLineCommentCStyle:
tokenContainer.Add(new Token(SqlTokenType.SingleLineCommentCStyle, currentValue.ToString()));
break;
case SqlTokenizationType.SingleHyphen:
tokenContainer.Add(new Token(SqlTokenType.OtherOperator, "-"));
break;
case SqlTokenizationType.SingleDollar:
tokenContainer.Add(new Token(SqlTokenType.MonetaryValue, "$"));
break;
case SqlTokenizationType.SingleSlash:
tokenContainer.Add(new Token(SqlTokenType.OtherOperator, "/"));
break;
case SqlTokenizationType.WhiteSpace:
tokenContainer.Add(new Token(SqlTokenType.WhiteSpace, currentValue.ToString()));
break;
case SqlTokenizationType.SingleN:
tokenContainer.Add(new Token(SqlTokenType.OtherNode, "N"));
break;
case SqlTokenizationType.SingleExclamation:
tokenContainer.Add(new Token(SqlTokenType.OtherNode, "!"));
break;
case SqlTokenizationType.SinglePipe:
tokenContainer.Add(new Token(SqlTokenType.OtherNode, "|"));
break;
case SqlTokenizationType.SingleGT:
tokenContainer.Add(new Token(SqlTokenType.OtherOperator, ">"));
break;
case SqlTokenizationType.SingleLT:
tokenContainer.Add(new Token(SqlTokenType.OtherOperator, "<"));
break;
case SqlTokenizationType.NString:
tokenContainer.Add(new Token(SqlTokenType.NationalString, currentValue.ToString()));
break;
case SqlTokenizationType.String:
tokenContainer.Add(new Token(SqlTokenType.String, currentValue.ToString()));
break;
case SqlTokenizationType.QuotedString:
tokenContainer.Add(new Token(SqlTokenType.QuotedString, currentValue.ToString()));
break;
case SqlTokenizationType.BracketQuotedName:
tokenContainer.Add(new Token(SqlTokenType.BracketQuotedName, currentValue.ToString()));
break;
case SqlTokenizationType.OtherOperator:
case SqlTokenizationType.SingleOtherCompoundableOperator:
tokenContainer.Add(new Token(SqlTokenType.OtherOperator, currentValue.ToString()));
break;
case SqlTokenizationType.SingleZero:
tokenContainer.Add(new Token(SqlTokenType.Number, "0"));
break;
case SqlTokenizationType.SinglePeriod:
tokenContainer.Add(new Token(SqlTokenType.Period, "."));
break;
case SqlTokenizationType.SingleAsterisk:
tokenContainer.Add(new Token(SqlTokenType.Asterisk, currentValue.ToString()));
break;
case SqlTokenizationType.SingleEquals:
tokenContainer.Add(new Token(SqlTokenType.EqualsSign, currentValue.ToString()));
break;
case SqlTokenizationType.Number:
case SqlTokenizationType.DecimalValue:
case SqlTokenizationType.FloatValue:
tokenContainer.Add(new Token(SqlTokenType.Number, currentValue.ToString()));
break;
case SqlTokenizationType.BinaryValue:
tokenContainer.Add(new Token(SqlTokenType.BinaryValue, currentValue.ToString()));
break;
case SqlTokenizationType.MonetaryValue:
tokenContainer.Add(new Token(SqlTokenType.MonetaryValue, currentValue.ToString()));
break;
default:
throw new Exception("Unrecognized SQL Node Type");
}
currentTokenizationType = null;
}
private static void ProcessOrOpenToken(ref SqlTokenizationType? currentTokenizationType, StringBuilder currentNodeValue, char currentCharacter, ITokenList tokenContainer)
{
if (currentTokenizationType != null)
throw new Exception("Cannot start a new Token: existing Tokenization Type is not null");
//start a new value.
currentNodeValue.Length = 0;
if (IsWhitespace(currentCharacter))
{
currentTokenizationType = SqlTokenizationType.WhiteSpace;
currentNodeValue.Append(currentCharacter);
}
else if (currentCharacter == '-')
{
currentTokenizationType = SqlTokenizationType.SingleHyphen;
}
else if (currentCharacter == '$')
{
currentTokenizationType = SqlTokenizationType.SingleDollar;
}
else if (currentCharacter == '/')
{
currentTokenizationType = SqlTokenizationType.SingleSlash;
}
else if (currentCharacter == 'N')
{
currentTokenizationType = SqlTokenizationType.SingleN;
}
else if (currentCharacter == '\'')
{
currentTokenizationType = SqlTokenizationType.String;
}
else if (currentCharacter == '"')
{
currentTokenizationType = SqlTokenizationType.QuotedString;
}
else if (currentCharacter == '[')
{
currentTokenizationType = SqlTokenizationType.BracketQuotedName;
}
else if (currentCharacter == '(')
{
tokenContainer.Add(new Token(SqlTokenType.OpenParens, currentCharacter.ToString()));
}
else if (currentCharacter == ')')
{
tokenContainer.Add(new Token(SqlTokenType.CloseParens, currentCharacter.ToString()));
}
else if (currentCharacter == ',')
{
tokenContainer.Add(new Token(SqlTokenType.Comma, currentCharacter.ToString()));
}
else if (currentCharacter == '.')
{
currentTokenizationType = SqlTokenizationType.SinglePeriod;
}
else if (currentCharacter == '0')
{
currentTokenizationType = SqlTokenizationType.SingleZero;
}
else if (currentCharacter >= '1' && currentCharacter <= '9')
{
currentTokenizationType = SqlTokenizationType.Number;
currentNodeValue.Append(currentCharacter);
}
else if (IsCurrencyPrefix(currentCharacter))
{
currentTokenizationType = SqlTokenizationType.MonetaryValue;
currentNodeValue.Append(currentCharacter);
}
else if (currentCharacter == ';')
{
tokenContainer.Add(new Token(SqlTokenType.Semicolon, currentCharacter.ToString()));
}
else if (currentCharacter == ':')
{
tokenContainer.Add(new Token(SqlTokenType.Colon, currentCharacter.ToString()));
}
else if (currentCharacter == '*')
{
currentTokenizationType = SqlTokenizationType.SingleAsterisk;
}
else if (currentCharacter == '=')
{
currentTokenizationType = SqlTokenizationType.SingleEquals;
}
else if (currentCharacter == '<')
{
currentTokenizationType = SqlTokenizationType.SingleLT;
}
else if (currentCharacter == '>')
{
currentTokenizationType = SqlTokenizationType.SingleGT;
}
else if (currentCharacter == '!')
{
currentTokenizationType = SqlTokenizationType.SingleExclamation;
}
else if (currentCharacter == '|')
{
currentTokenizationType = SqlTokenizationType.SinglePipe;
}
else if (IsCompoundableOperatorCharacter(currentCharacter))
{
currentTokenizationType = SqlTokenizationType.SingleOtherCompoundableOperator;
currentNodeValue.Append(currentCharacter);
}
else if (IsOperatorCharacter(currentCharacter))
{
tokenContainer.Add(new Token(SqlTokenType.OtherOperator, currentCharacter.ToString()));
}
else
{
currentTokenizationType = SqlTokenizationType.OtherNode;
currentNodeValue.Append(currentCharacter);
}
}