Turing.Instruction

Represents a single instruction in a two-dimensional Turing machine.

Constructors

Instruction

public Instruction(string stateIn, string stateOut, string fieldIn, string fieldOut, int horizontal, int vertical)

Create a new turing instruction.

Parameters:

stateIn (string)
stateOut (string)
fieldIn (string)
fieldOut (string)
horizontal (int)
vertical (int)

Properties

FieldIn

public string FieldIn { get; }

Gets the filter string for field content. This may be a straight up name, or a wildcard expression.

FieldOut

public string FieldOut { get; }

Gets the name to assign to the cell. If null, it indicates the cell content is to be left unmolested.

HorizontalMovement

public int HorizontalMovement { get; }

Gets the horizontal movement of the caret upon completion of this instruction.

IsFieldModifier

public bool IsFieldModifier { get; }

Gets whether this instruction changes the value of the field.

IsFieldWildcard

public bool IsFieldWildcard { get; }

Gets whether the field filter has wildcards.

IsStateModifier

public bool IsStateModifier { get; }

Gets whether this instruction changes the value of the state.

IsStateWildcard

public bool IsStateWildcard { get; }

Gets whether the state filter has wildcards.

IsTerminal

public bool IsTerminal { get; }

Gets whether this instruction represents the final one, after which there will be no more changes to the sheet. A terminal instruction has zero movement and leaves both the state and the current field intact.

StateIn

public string StateIn { get; }

Gets the filter string for states. This can be a straight up name, or a wildcard expression.

StateOut

public string StateOut { get; }

Gets the name of the state the machine is left in after this instruction completes. If null, it indicates the state is to be left unmolested.

VerticalMovement

public int VerticalMovement { get; }

Gets the vertical movement of the caret upon completion of this instruction.

Methods

CreateTerminalInstruction

public static Turing.Instruction CreateTerminalInstruction(string state, string field)

Create a terminating instruction.

Parameters:

state (string)	State name filter.
field (string)	Field content filter.

Returns: A terminating instruction for the specific field and state pair.

MatchesField

public bool MatchesField(string field)

Gets whether this instruction matches the given field.

Parameters:

field (string)

Field to match.

Returns: True if the field is covered by this instruction.

MatchesState

public bool MatchesState(string state)

Gets whether this instruction matches the given state.

Parameters:

state (string)

State to match.

Returns: True if the state is covered by this instruction.

Parse

public static Turing.Instruction Parse(string description)

Try to parse a turing instruction from a descriptive string.

Parameters:

description (string)

ToString

public override string ToString()

Create a string representation of this instruction.

Overrides: Object.ToString

TryParse

public static bool TryParse(string description, out Instruction instruction)

Try to parse a turing instruction from a descriptive string.

Parameters:

description (string)
instruction (out Turing.Instruction)

Convertors

Operation			Result	Description
	implicit	string	Turing.Instruction	Convert a valid description into an instruction.