Class: Aurum::CharacterClassDefinition

Inherits:
Object
  • Object
show all
Defined in:
lib/aurum/grammar.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CharacterClassDefinition

Returns a new instance of CharacterClassDefinition.



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# File 'lib/aurum/grammar.rb', line 14

def initialize
	@definitions = {}
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, char_set, &block) ⇒ Object 



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# File 'lib/aurum/grammar.rb', line 30

def method_missing name, char_set, &block
    @definitions[name] = char_set unless @definitions.has_key? name
end

Instance Attribute Details

#definitions ⇒ Object (readonly)

Returns the value of attribute definitions.



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# File 'lib/aurum/grammar.rb', line 12

def definitions
  @definitions
end

Instance Method Details

#enum(a) ⇒ Object 



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# File 'lib/aurum/grammar.rb', line 24

def enum a
    result = CharacterSet.new
    result << a
    result            
end

#range(a, b) ⇒ Object 



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# File 'lib/aurum/grammar.rb', line 18

def range a, b
    a = a[0] if a.kind_of? String
    b = b[0] if b.kind_of? String
    CharacterSet::Interval.new(a, b).to_char_set
end