public virtual void Visit(SoqlLiteralExpression v)
{
if (v.LiteralValue is String)
{
Output.Write('\'');
Output.Write(((string)v.LiteralValue).Replace("'", "''"));
Output.Write('\'');
}
else if (v.LiteralValue is DateTime)
{
Output.Write('\'');
Output.Write(((DateTime)v.LiteralValue).ToString("yyyyMMdd HH:mm:ss"));
Output.Write('\'');
}
else if (v.LiteralValue == null)
{
Output.Write("null");
}
else
{
Output.Write(v.LiteralValue);
}
}
private SoqlExpression ParseLiteralExpression()
{
if (tokenizer.IsToken(SoqlTokenType.LeftParen))
{
tokenizer.GetNextToken();
SoqlExpression e;
if (tokenizer.IsKeyword("select"))
e = ParseQuery();
else
e = ParseExpression();
tokenizer.Expect(SoqlTokenType.RightParen);
return e;
};
if (tokenizer.IsNumber())
{
string numberString = (string)tokenizer.TokenValue;
tokenizer.GetNextToken();
if (numberString.IndexOf('.') >= 0)
{
return new SoqlLiteralExpression(Double.Parse(numberString, CultureInfo.InvariantCulture));
}
else
{
return new SoqlLiteralExpression(Int32.Parse(numberString, CultureInfo.InvariantCulture));
}
}
if (tokenizer.TokenType == SoqlTokenType.String)
{
SoqlExpression e = new SoqlLiteralExpression(tokenizer.StringTokenValue);
tokenizer.GetNextToken();
return e;
}
if (tokenizer.TokenType == SoqlTokenType.LeftCurlyBrace)
{
tokenizer.GetNextToken();
int val = Int32.Parse((string)tokenizer.TokenValue);
tokenizer.GetNextToken();
if (tokenizer.TokenType == SoqlTokenType.Colon)
{
tokenizer.GetNextToken();
SoqlLiteralValueModifiers modifiers = ParseLiteralValueModifiers();
tokenizer.Expect(SoqlTokenType.RightCurlyBrace);
return new SoqlParameterLiteralExpression(val, modifiers);
}
else
{
tokenizer.Expect(SoqlTokenType.RightCurlyBrace);
return new SoqlParameterLiteralExpression(val);
}
}
if (tokenizer.TokenType == SoqlTokenType.Asterisk)
{
tokenizer.GetNextToken();
return new SoqlAsteriskExpression(null);
}
if (tokenizer.TokenType == SoqlTokenType.Keyword)
{
string keyword = tokenizer.EatKeyword();
if (0 == String.Compare(keyword, "not", true, System.Globalization.CultureInfo.InvariantCulture))
return new SoqlBooleanNegationExpression((SoqlBooleanExpression)ParseBooleanPredicate());
if (0 == String.Compare(keyword, "null", true, System.Globalization.CultureInfo.InvariantCulture))
return new SoqlNullLiteral();
if (0 == String.Compare(keyword, "true", true, System.Globalization.CultureInfo.InvariantCulture))
return new SoqlBooleanLiteralExpression(true);
if (0 == String.Compare(keyword, "false", true, System.Globalization.CultureInfo.InvariantCulture))
return new SoqlBooleanLiteralExpression(false);
/*if (tokenizer.IsKeyword("as"))
{
tokenizer.GetNextToken();
string alias = tokenizer.EatKeyword();
string className = keyword;
return ParseSimplifiedQuery(className, alias);
}
*/
if (tokenizer.IsKeyword("where"))
{
// className WHERE expr
return ParseSimplifiedQuery(keyword, String.Empty);
}
return ParsePathLikeExpression(keyword);
}
if (tokenizer.TokenType == SoqlTokenType.Sub)
{
tokenizer.GetNextToken();
return new SoqlUnaryNegationExpression(ParseLiteralExpression());
}
throw new SoqlException("Unexpected token: " + tokenizer.TokenValue, tokenizer.TokenPosition);
}
private SoqlExpression ParseLiteralExpression()
{
if (tokenizer.IsToken(SoqlTokenType.LeftParen))
{
tokenizer.GetNextToken();
SoqlExpression e;
if (tokenizer.IsKeyword("select"))
{
e = ParseQuery();
}
else
{
e = ParseExpression();
}
tokenizer.Expect(SoqlTokenType.RightParen);
return(e);
}
;
if (tokenizer.IsNumber())
{
string numberString = (string)tokenizer.TokenValue;
tokenizer.GetNextToken();
if (numberString.IndexOf('.') >= 0)
{
return(new SoqlLiteralExpression(Double.Parse(numberString, CultureInfo.InvariantCulture)));
}
else
{
return(new SoqlLiteralExpression(Int32.Parse(numberString, CultureInfo.InvariantCulture)));
}
}
if (tokenizer.TokenType == SoqlTokenType.String)
{
SoqlExpression e = new SoqlLiteralExpression(tokenizer.StringTokenValue);
tokenizer.GetNextToken();
return(e);
}
if (tokenizer.TokenType == SoqlTokenType.LeftCurlyBrace)
{
tokenizer.GetNextToken();
int val = Int32.Parse((string)tokenizer.TokenValue);
tokenizer.GetNextToken();
if (tokenizer.TokenType == SoqlTokenType.Colon)
{
tokenizer.GetNextToken();
SoqlLiteralValueModifiers modifiers = ParseLiteralValueModifiers();
tokenizer.Expect(SoqlTokenType.RightCurlyBrace);
return(new SoqlParameterLiteralExpression(val, modifiers));
}
else
{
tokenizer.Expect(SoqlTokenType.RightCurlyBrace);
return(new SoqlParameterLiteralExpression(val));
}
}
if (tokenizer.TokenType == SoqlTokenType.Asterisk)
{
tokenizer.GetNextToken();
return(new SoqlAsteriskExpression(null));
}
if (tokenizer.TokenType == SoqlTokenType.Keyword)
{
string keyword = tokenizer.EatKeyword();
if (0 == String.Compare(keyword, "not", true, System.Globalization.CultureInfo.InvariantCulture))
{
return(new SoqlBooleanNegationExpression((SoqlBooleanExpression)ParseBooleanPredicate()));
}
if (0 == String.Compare(keyword, "null", true, System.Globalization.CultureInfo.InvariantCulture))
{
return(new SoqlNullLiteral());
}
if (0 == String.Compare(keyword, "true", true, System.Globalization.CultureInfo.InvariantCulture))
{
return(new SoqlBooleanLiteralExpression(true));
}
if (0 == String.Compare(keyword, "false", true, System.Globalization.CultureInfo.InvariantCulture))
{
return(new SoqlBooleanLiteralExpression(false));
}
/*if (tokenizer.IsKeyword("as"))
* {
* tokenizer.GetNextToken();
* string alias = tokenizer.EatKeyword();
* string className = keyword;
*
* return ParseSimplifiedQuery(className, alias);
* }
*/
if (tokenizer.IsKeyword("where"))
{
// className WHERE expr
return(ParseSimplifiedQuery(keyword, String.Empty));
}
return(ParsePathLikeExpression(keyword));
}
if (tokenizer.TokenType == SoqlTokenType.Sub)
{
tokenizer.GetNextToken();
return(new SoqlUnaryNegationExpression(ParseLiteralExpression()));
}
throw new SoqlException("Unexpected token: " + tokenizer.TokenValue, tokenizer.TokenPosition);
}
public virtual void Visit(SoqlLiteralExpression v)
{
if (v.LiteralValue is String)
{
Output.Write('\'');
Output.Write(((string)v.LiteralValue).Replace("'", "''"));
Output.Write('\'');
}
else if (v.LiteralValue is DateTime)
{
Output.Write('\'');
Output.Write(((DateTime)v.LiteralValue).ToString("yyyyMMdd HH:mm:ss"));
Output.Write('\'');
}
else if (v.LiteralValue == null)
{
Output.Write("null");
}
else
{
Output.Write(v.LiteralValue);
}
}
void Sooda.QL.ISoqlVisitor.Visit(SoqlLiteralExpression v)
{
// nothing here
}
void Sooda.QL.ISoqlVisitor.Visit(SoqlLiteralExpression v)
{
// nothing here
}
public override void Visit(SoqlLiteralExpression v)
{
OutputLiteral(v.LiteralValue, v.Modifiers);
}
