Class Operator

Methods to create OperatorTableRow<TToken, T> values.

Inheritance

Object

Operator

Namespace: Pidgin.Expression

Assembly: Pidgin.dll

Syntax

public static class Operator : object

Methods

Binary<TToken, T>(BinaryOperatorType, Parser<TToken, Func<T, T, T>>)

Creates a row in a table of operators which contains a single binary infix operator with the specified associativity. Can be combined with other OperatorTableRow<TToken, T>s using And(OperatorTableRow<TToken, T>) to build a larger row.

Declaration

public static OperatorTableRow<TToken, T> Binary<TToken, T>(BinaryOperatorType type, Parser<TToken, Func<T, T, T>> opParser)

Parameters

Type	Name	Description
BinaryOperatorType	type	The associativity of the infix operator
Parser<TToken, Func<T, T, T>>	opParser	A parser for an infix operator

Returns

Type	Description
OperatorTableRow<TToken, T>	A row in a table of operators which contains a single infix operator.

Type Parameters

Name	Description
TToken
T

InfixL<TToken, T>(Parser<TToken, Func<T, T, T>>)

Creates a row in a table of operators which contains a single left-associative infix operator. Can be combined with other OperatorTableRow<TToken, T>s using And(OperatorTableRow<TToken, T>) to build a larger row.

Declaration

public static OperatorTableRow<TToken, T> InfixL<TToken, T>(Parser<TToken, Func<T, T, T>> opParser)

Parameters

Type	Name	Description
Parser<TToken, Func<T, T, T>>	opParser	A parser for an infix operator

Returns

Type	Description
OperatorTableRow<TToken, T>	A row in a table of operators which contains a single infix operator.

Type Parameters

Name	Description
TToken
T

InfixN<TToken, T>(Parser<TToken, Func<T, T, T>>)

Creates a row in a table of operators which contains a single non-associative infix operator. Can be combined with other OperatorTableRow<TToken, T>s using And(OperatorTableRow<TToken, T>) to build a larger row.

Declaration

public static OperatorTableRow<TToken, T> InfixN<TToken, T>(Parser<TToken, Func<T, T, T>> opParser)

Parameters

Type	Name	Description
Parser<TToken, Func<T, T, T>>	opParser	A parser for an infix operator

Returns

Type	Description
OperatorTableRow<TToken, T>	A row in a table of operators which contains a single infix operator.

Type Parameters

Name	Description
TToken
T

InfixR<TToken, T>(Parser<TToken, Func<T, T, T>>)

Creates a row in a table of operators which contains a single right-associative infix operator. Can be combined with other OperatorTableRow<TToken, T>s using And(OperatorTableRow<TToken, T>) to build a larger row.

Declaration

public static OperatorTableRow<TToken, T> InfixR<TToken, T>(Parser<TToken, Func<T, T, T>> opParser)

Parameters

Type	Name	Description
Parser<TToken, Func<T, T, T>>	opParser	A parser for an infix operator

Returns

Type	Description
OperatorTableRow<TToken, T>	A row in a table of operators which contains a single infix operator.

Type Parameters

Name	Description
TToken
T

Postfix<TToken, T>(Parser<TToken, Func<T, T>>)

Creates a row in a table of operators which contains a single postfix operator. Can be combined with other OperatorTableRow<TToken, T>s using And(OperatorTableRow<TToken, T>) to build a larger row.

Declaration

public static OperatorTableRow<TToken, T> Postfix<TToken, T>(Parser<TToken, Func<T, T>> opParser)

Parameters

Type	Name	Description
Parser<TToken, Func<T, T>>	opParser	A parser for an postfix operator

Returns

Type	Description
OperatorTableRow<TToken, T>	A row in a table of operators which contains a single postfix operator.

Type Parameters

Name	Description
TToken
T

PostfixChainable<TToken, T>(IEnumerable<Parser<TToken, Func<T, T>>>)

Creates a row in a table of operators which contains a chainable collection of postfix operators. By default Postfix<TToken, T>(Parser<TToken, Func<T, T>>) operators can only appear onc, so foo()() would not be parsed as "call(call(foo))".

This method is equivalent to:

Postfix(
    OneOf(opParsers)
        .AtLeastOnce()
        .Select<Func<T, T>>(fs => z => fs.Aggregate(z, (x, f) => f(x)))
)

Declaration

public static OperatorTableRow<TToken, T> PostfixChainable<TToken, T>(IEnumerable<Parser<TToken, Func<T, T>>> opParsers)

Parameters

Type	Name	Description
IEnumerable<Parser<TToken, Func<T, T>>>	opParsers	A collection of parsers for individual postfix operators

Returns

Type	Description
OperatorTableRow<TToken, T>	A row in a table of operators which contains a chainable collection of postfix operators

Type Parameters

Name	Description
TToken
T

PostfixChainable<TToken, T>(Parser<TToken, Func<T, T>>[])

Creates a row in a table of operators which contains a chainable collection of postfix operators. By default Postfix<TToken, T>(Parser<TToken, Func<T, T>>) operators can only appear onc, so foo()() would not be parsed as "call(call(foo))".

This method is equivalent to:

Postfix(
    OneOf(opParsers)
        .AtLeastOnce()
        .Select<Func<T, T>>(fs => z => fs.Aggregate(z, (x, f) => f(x)))
)

Declaration

public static OperatorTableRow<TToken, T> PostfixChainable<TToken, T>(params Parser<TToken, Func<T, T>>[] opParsers)

Parameters

Type	Name	Description
Parser<TToken, Func<T, T>>[]	opParsers	A collection of parsers for individual postfix operators

Returns

Type	Description
OperatorTableRow<TToken, T>	A row in a table of operators which contains a chainable collection of postfix operators

Type Parameters

Name	Description
TToken
T

Prefix<TToken, T>(Parser<TToken, Func<T, T>>)

Creates a row in a table of operators which contains a single prefix operator. Can be combined with other OperatorTableRow<TToken, T>s using And(OperatorTableRow<TToken, T>) to build a larger row.

Declaration

public static OperatorTableRow<TToken, T> Prefix<TToken, T>(Parser<TToken, Func<T, T>> opParser)

Parameters

Type	Name	Description
Parser<TToken, Func<T, T>>	opParser	A parser for an prefix operator

Returns

Type	Description
OperatorTableRow<TToken, T>	A row in a table of operators which contains a single prefix operator.

Type Parameters

Name	Description
TToken
T

PrefixChainable<TToken, T>(IEnumerable<Parser<TToken, Func<T, T>>>)

Creates a row in a table of operators which contains a chainable collection of prefix operators. By default Prefix<TToken, T>(Parser<TToken, Func<T, T>>) operators can only appear onc, so - - 1 would not be parsed as "minus minus 1".

This method is equivalent to:

Prefix(
    OneOf(opParsers)
        .AtLeastOnce()
        .Select<Func<T, T>>(fs => z => fs.AggregateR(z, (f, x) => f(x)))
)

Declaration

public static OperatorTableRow<TToken, T> PrefixChainable<TToken, T>(IEnumerable<Parser<TToken, Func<T, T>>> opParsers)

Parameters

Type	Name	Description
IEnumerable<Parser<TToken, Func<T, T>>>	opParsers	A collection of parsers for individual prefix operators

Returns

Type	Description
OperatorTableRow<TToken, T>	A row in a table of operators which contains a chainable collection of prefix operators

Type Parameters

Name	Description
TToken
T

PrefixChainable<TToken, T>(Parser<TToken, Func<T, T>>[])

Creates a row in a table of operators which contains a chainable collection of prefix operators. By default Prefix<TToken, T>(Parser<TToken, Func<T, T>>) operators can only appear onc, so - - 1 would not be parsed as "minus minus 1".

This method is equivalent to:

Prefix(
    OneOf(opParsers)
        .AtLeastOnce()
        .Select<Func<T, T>>(fs => z => fs.AggregateR(z, (f, x) => f(x)))
)

Declaration

public static OperatorTableRow<TToken, T> PrefixChainable<TToken, T>(params Parser<TToken, Func<T, T>>[] opParsers)

Parameters

Type	Name	Description
Parser<TToken, Func<T, T>>[]	opParsers	A collection of parsers for individual prefix operators

Returns

Type	Description
OperatorTableRow<TToken, T>	A row in a table of operators which contains a chainable collection of prefix operators

Type Parameters

Name	Description
TToken
T

Unary<TToken, T>(UnaryOperatorType, Parser<TToken, Func<T, T>>)

Creates a row in a table of operators which contains a single unary operator - either a prefix operator or a postfix operator. Can be combined with other OperatorTableRow<TToken, T>s using And(OperatorTableRow<TToken, T>) to build a larger row.

Declaration

public static OperatorTableRow<TToken, T> Unary<TToken, T>(UnaryOperatorType type, Parser<TToken, Func<T, T>> opParser)

Parameters

Type	Name	Description
UnaryOperatorType	type	The type of the unary operator
Parser<TToken, Func<T, T>>	opParser	A parser for a unary operator

Returns

Type	Description
OperatorTableRow<TToken, T>	A row in a table of operators which contains a single unary operator.

Type Parameters

Name	Description
TToken
T