Class: RegularExpression::AST::Character

Inherits:

Object

• Object
• RegularExpression::AST::Character

Defined in:

lib/regular_expression/ast.rb

Instance Attribute Summary

• #value ⇒ Object readonly

  String.

Instance Method Summary

• #initialize(value) ⇒ Character constructor

  A new instance of Character.

• #to_dot(parent) ⇒ Object
• #to_nfa(start, finish) ⇒ Object
• #to_nfa_values ⇒ Object

Constructor Details

#initialize(value) ⇒ Character

Returns a new instance of Character.

# File 'lib/regular_expression/ast.rb', line 179

def initialize(value)
  @value = value
end

Instance Attribute Details

#value ⇒ Object (readonly)

String

# File 'lib/regular_expression/ast.rb', line 177

def value
  @value
end

Instance Method Details

#to_dot(parent) ⇒ Object

# File 'lib/regular_expression/ast.rb', line 183

def to_dot(parent)
  parent.add_node(object_id, label: value, shape: "box")
end

#to_nfa(start, finish) ⇒ Object

# File 'lib/regular_expression/ast.rb', line 191

def to_nfa(start, finish)
  start.add_transition(NFA::Transition::Value.new(finish, value))
end

#to_nfa_values ⇒ Object

# File 'lib/regular_expression/ast.rb', line 187

def to_nfa_values
  [value]
end