/// <inheritdoc />
public TypedLiteralExpression <string> Substr(TypedLiteralExpression <string> str, NumericExpression <int> startingLoc, VariableExpression length)
{
return(Substr(str.Expression, startingLoc.Expression, length.Expression));
}
/// <inheritdoc />
public TypedLiteralExpression <string> Substr(TypedLiteralExpression <string> str, int startingLoc, VariableExpression length)
{
return(Substr(str.Expression, startingLoc.ToConstantTerm(), length.Expression));
}
/// <inheritdoc />
public TypedLiteralExpression <string> Substr(TypedLiteralExpression <string> str, int startingLoc)
{
return(Substr(str.Expression, startingLoc.ToConstantTerm(), null));
}
/// <inheritdoc />
public TypedLiteralExpression <string> Substr(TypedLiteralExpression <string> str, NumericExpression <int> startingLoc, int length)
{
return(Substr(str.Expression, startingLoc.Expression, length.ToConstantTerm()));
}
/// <inheritdoc />
public TypedLiteralExpression <string> Substr(TypedLiteralExpression <string> str, NumericExpression <int> startingLoc)
{
return(Substr(str.Expression, startingLoc.Expression, null));
}
/// <inheritdoc />
public TypedLiteralExpression <string> Substr(TypedLiteralExpression <string> str, VariableExpression startingLoc)
{
return(Substr(str.Expression, startingLoc.Expression, null));
}
public BlankNodeExpression BNode(TypedLiteralExpression <string> stringLiteral)
{
return(new BlankNodeExpression(new BNodeFunction(stringLiteral.Expression)));
}
/// <inheritdoc />
public NumericExpression <int> StrLen(TypedLiteralExpression <string> str)
{
return(new NumericExpression <int>(new StrLenFunction(str.Expression)));
}
/// <summary>
/// Creates a call to the BNODE function with a string literal parameter
/// </summary>
/// <param name="eb"> </param>
/// <param name="stringLiteral">a SPARQL string literal</param>
public static BlankNodeExpression BNode(this ExpressionBuilder eb, TypedLiteralExpression <string> stringLiteral)
{
return(new BlankNodeExpression(new BNodeFunction(stringLiteral.Expression)));
}
/// <summary>
/// Creates a call to the SUBSTR function with a string literal, interger expression and a variable parameters
/// </summary>
/// <param name="eb"> </param>
/// <param name="str">a string literal parameter</param>
/// <param name="startingLoc">a SPARQL variable</param>
/// <param name="length">substring length </param>
public static TypedLiteralExpression <string> Substr(this ExpressionBuilder eb, TypedLiteralExpression <string> str, VariableExpression startingLoc, VariableExpression length)
{
return(Substr(str.Expression, startingLoc.Expression, length.Expression));
}
/// <summary>
/// Creates a call to the SUBSTR function with a string literal, interger and integer expression parameters
/// </summary>
/// <param name="eb"> </param>
/// <param name="str">a string literal parameter</param>
/// <param name="startingLoc">1-based start index</param>
/// <param name="length">substring length </param>
public static TypedLiteralExpression <string> Substr(this ExpressionBuilder eb, TypedLiteralExpression <string> str, int startingLoc, NumericExpression <int> length)
{
return(Substr(str.Expression, startingLoc.ToConstantTerm(), length.Expression));
}
/// <summary>
/// Creates a call to the SUBSTR function with a string literal and variable parameters
/// </summary>
/// <param name="eb"> </param>
/// <param name="str">a string literal parameter</param>
/// <param name="startingLoc">1-based start index</param>
public static TypedLiteralExpression <string> Substr(this ExpressionBuilder eb, TypedLiteralExpression <string> str, NumericExpression <int> startingLoc)
{
return(Substr(str.Expression, startingLoc.Expression, null));
}
/// <summary>
/// Creates a call to the STRLEN function with a string literal parameter
/// </summary>
/// <param name="eb"> </param>
/// <param name="str">a string literal parameter</param>
public static NumericExpression <int> StrLen(this ExpressionBuilder eb, TypedLiteralExpression <string> str)
{
return(new NumericExpression <int>(new StrLenFunction(str.Expression)));
}