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unless ("check partition".partition(" ") rescue false)
require 'backports/tools/alias_method_chain'
require 'backports/tools/arguments'
class String
def partition_with_new_meaning(pattern = Backports::Undefined)
return partition_without_new_meaning{|c| yield c} if pattern == Backports::Undefined
pattern = Backports.coerce_to(pattern, String, :to_str) unless pattern.is_a? Regexp
i = index(pattern)
return [self, "", ""] unless i
if pattern.is_a? Regexp
match = Regexp.last_match
[match.pre_match, match[0], match.post_match]
else
last = i+pattern.length
[self[0...i], self[i...last], self[last...length]]
end
end
Backports.alias_method_chain self, :partition, :new_meaning
end
end
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