Class: Neg::Parser::AlternativeParser

Inherits:
CompositeParser show all
Defined in:
lib/neg/parser.rb

Instance Method Summary collapse

Methods inherited from CompositeParser

#initialize

Methods inherited from SubParser

#*, #+, #[], #parse

Constructor Details

This class inherits a constructor from Neg::Parser::CompositeParser

Instance Method Details

#do_parse(i) ⇒ Object 



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# File 'lib/neg/parser.rb', line 299

def do_parse(i)

  result = []

  @children.each { |c|
    result << c.parse(i)
    break if result.last[1]
  }

  [ result.last[1], result ]
end

#to_s(parent = nil) ⇒ Object 



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# File 'lib/neg/parser.rb', line 311

def to_s(parent=nil)

  "(#{@children.collect { |c| c.to_s(self) }.join(' | ')})"
end

#|(pa) ⇒ Object 



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# File 'lib/neg/parser.rb', line 292

def |(pa)

  @children << pa

  self
end