47 lines
673 B
Ruby
47 lines
673 B
Ruby
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class Object
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def to_param
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to_s
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end
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end
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class TrueClass
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def to_param
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self
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end
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end
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class FalseClass
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def to_param
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self
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end
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end
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class NilClass
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def to_param
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self
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end
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end
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class Regexp #:nodoc:
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def number_of_captures
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Regexp.new("|#{source}").match('').captures.length
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end
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class << self
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def optionalize(pattern)
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case unoptionalize(pattern)
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when /\A(.|\(.*\))\Z/ then "#{pattern}?"
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else "(?:#{pattern})?"
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end
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end
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def unoptionalize(pattern)
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[/\A\(\?:(.*)\)\?\Z/, /\A(.|\(.*\))\?\Z/].each do |regexp|
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return $1 if regexp =~ pattern
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end
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return pattern
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end
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end
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end
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