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