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unless String.method_defined? :delete_prefix
require 'backports/tools/arguments'
class String
def delete_prefix(prefix)
prefix = Backports.coerce_to_str(prefix)
if rindex(prefix, 0)
self[prefix.length..-1]
else
dup
end
end
end
end
unless String.method_defined? :delete_prefix!
require 'backports/tools/arguments'
class String
def delete_prefix!(prefix)
prefix = Backports.coerce_to_str(prefix)
chomp! if frozen?
len = prefix.length
if len > 0 && rindex(prefix, 0)
self[0...prefix.length] = ''
self
else
nil
end
end
end
end
|
