rxpy.graph.opcode.Split

Class Split

Branch the graph, providing alternative matches for the current context (eg via backtracking on failure).

label is a string for display (since this node represents many different parts of a regexp, like | and *).

lazy is used during graph construction.

next contains the alternatives, in ordered priority (next[0] first). There should be more than 1, but only | should give more than 2. However, the number of alternatives is not something the engine should assume (I may be wrong, or there may be a "bug" that generates a single entry in some cases, for example).

Instance Methods

[hide private]

__init__(self, label, lazy=False)
Subclasses should pay attention to the relationship between constructor kargs and attributes assumed in .clone. source code

__str__(self)
Subclasses must implement something useful here, which will be displayed in the graphviz node (see repr).

source code

visit(self, visitor, state=None)
The visitor pattern - used to evaluate the graph by an interpreter, for example.

source code

Inherited from support.BaseSplitNode: concatenate

Inherited from support.BaseNode: __repr__, clone, consumer, deep_eq, size, start

Inherited from support.BaseNode (private): _kargs, _node_eq

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __subclasshook__

Properties

[hide private]

Inherited from object: __class__

init(self, label, lazy=False)
(Constructor)

source code

Subclasses should pay attention to the relationship between constructor kargs and attributes assumed in .clone.

Overrides: object.__init__: (inherited documentation)

str(self)
(Informal representation operator)

source code

Subclasses must implement something useful here, which will be displayed in the graphviz node (see repr).

Overrides: object.__str__: (inherited documentation)

visit(self, visitor, state=None)

source code

The visitor pattern - used to evaluate the graph by an interpreter, for example. Calls back to the visitor via the interface described in rxpy.parser.visitor.Visitor.

Overrides: support.BaseNode.visit: (inherited documentation)

Class Split

__init__(self, label, lazy=False) (Constructor)

__str__(self) (Informal representation operator)

visit(self, visitor, state=None)

init(self, label, lazy=False)
(Constructor)

str(self)
(Informal representation operator)