Class: Docopt::Either

Inherits:
ParentPattern show all
Defined in:
lib/docopt.rb

Instance Attribute Summary

Attributes inherited from ParentPattern

#children

Attributes inherited from Pattern

#children

Instance Method Summary collapse

Methods inherited from ParentPattern

#flat, #initialize, #inspect

Methods inherited from Pattern

#==, #dump, #either, #fix, #fix_identities, #fix_repeating_arguments, #to_str

Constructor Details

This class inherits a constructor from Docopt::ParentPattern

Instance Method Details

#match(left, collected = nil) ⇒ Object


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# File 'lib/docopt.rb', line 355

def match(left, collected=nil)
  collected ||= []
  outcomes = []
  for p in self.children
    matched, _, _ = found = p.match(left, collected)
    if matched
      outcomes << found
    end
  end

  if outcomes.count > 0
    return outcomes.min_by do |outcome|
      outcome[1] == nil ? 0 : outcome[1].count
    end
  end
  return [false, left, collected]
end