Class RegexFunction

Class representing the SPARQL REGEX function.

Inheritance
System.Object
RegexFunction
Implements
Inherited Members
object.Equals(object)
object.Equals(object, object)
object.GetHashCode()
object.GetType()
object.MemberwiseClone()
object.ReferenceEquals(object, object)
Namespace: VDS.RDF.Query.Expressions.Functions.Sparql.Boolean
Assembly: dotNetRdf.dll
Syntax
public class RegexFunction : ISparqlExpression

Constructors

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RegexFunction(ISparqlExpression, ISparqlExpression, ISparqlExpression)

Creates a new Regex() function expression.

Declaration
public RegexFunction(ISparqlExpression text, ISparqlExpression pattern, ISparqlExpression options)
Parameters
Type Name Description
ISparqlExpression text

Text to apply the Regular Expression to.
ISparqlExpression pattern

Regular Expression Pattern.
ISparqlExpression options

Regular Expression Options.
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RegexFunction(ISparqlExpression, ISparqlExpression)

Creates a new Regex() function expression.

Declaration
public RegexFunction(ISparqlExpression text, ISparqlExpression pattern)
Parameters
Type Name Description
ISparqlExpression text

Text to apply the Regular Expression to.
ISparqlExpression pattern

Regular Expression Pattern.

Properties

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Arguments

Gets the Arguments of the Expression.

Declaration
public IEnumerable<ISparqlExpression> Arguments { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<T><ISparqlExpression>
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CanParallelise

Gets whether an expression can safely be evaluated in parallel.

Declaration
public virtual bool CanParallelise { get; }
Property Value
Type Description
System.Boolean
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CompiledRegex

Get the compiled constant regular expression. This is only non-null if the pattern expression is constant and the options expression is either null or constant.

Declaration
public Regex CompiledRegex { get; }
Property Value
Type Description
System.Text.RegularExpressions.Regex
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FixedOptions

True if OptionsExpression is a constant.

Declaration
public bool FixedOptions { get; }
Property Value
Type Description
System.Boolean
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FixedPattern

True if PatternExpression is a constant.

Declaration
public bool FixedPattern { get; }
Property Value
Type Description
System.Boolean
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Functor

Gets the Functor of the Expression.

Declaration
public string Functor { get; }
Property Value
Type Description
string
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OptionsExpression

Get the expression that yields the options to apply to the regular expression evaulation.

Declaration
public ISparqlExpression OptionsExpression { get; }
Property Value
Type Description
ISparqlExpression
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Pattern

Get the pattern part of the regular expression if FixedPattern is true.

Declaration
public string Pattern { get; }
Property Value
Type Description
string
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PatternExpression

Get the expression that yields the regular expression pattern to use.

Declaration
public ISparqlExpression PatternExpression { get; }
Property Value
Type Description
ISparqlExpression
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TextExpression

Get the expression that yields the text to be tested.

Declaration
public ISparqlExpression TextExpression { get; }
Property Value
Type Description
ISparqlExpression
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Type

Gets the Type of the Expression.

Declaration
public SparqlExpressionType Type { get; }
Property Value
Type Description
SparqlExpressionType
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Variables

Gets the enumeration of Variables involved in this Expression.

Declaration
public IEnumerable<string> Variables { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<T><string>

Methods

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Accept<T>(ISparqlExpressionVisitor<T>)

Declaration
public T Accept<T>(ISparqlExpressionVisitor<T> visitor)
Parameters
Type Name Description
ISparqlExpressionVisitor<T> visitor
Returns
Type Description
T
Type Parameters
Name Description
T
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Accept<TResult, TContext, TBinding>(ISparqlExpressionProcessor<TResult, TContext, TBinding>, TContext, TBinding)

Declaration
public TResult Accept<TResult, TContext, TBinding>(ISparqlExpressionProcessor<TResult, TContext, TBinding> processor, TContext context, TBinding binding)
Parameters
Type Name Description
ISparqlExpressionProcessor<TResult, TContext, TBinding> processor
TContext context
TBinding binding
Returns
Type Description
TResult
Type Parameters
Name Description
TResult
TContext
TBinding
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GetOptions(INode, bool)

Configures the Options for the Regular Expression.

Declaration
public static RegexOptions GetOptions(INode n, bool throwErrors)
Parameters
Type Name Description
INode n

Node detailing the Options.
System.Boolean throwErrors

Whether errors should be thrown or suppressed.
Returns
Type Description
System.Text.RegularExpressions.RegexOptions
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ToString()

Gets the String representation of this Expression.

Declaration
public override string ToString()
Returns
Type Description
string
Overrides
object.ToString()
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Transform(IExpressionTransformer)

Transforms the Expression using the given Transformer.

Declaration
public ISparqlExpression Transform(IExpressionTransformer transformer)
Parameters
Type Name Description
IExpressionTransformer transformer

Expression Transformer.
Returns
Type Description
ISparqlExpression

Implements

Extension Methods