/usr/lib/ruby/vendor_ruby/active_support/core_ext/string/multibyte.rb is in ruby-activesupport 2:4.2.6-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | # encoding: utf-8
require 'active_support/multibyte'
class String
# == Multibyte proxy
#
# +mb_chars+ is a multibyte safe proxy for string methods.
#
# It creates and returns an instance of the ActiveSupport::Multibyte::Chars class which
# encapsulates the original string. A Unicode safe version of all the String methods are defined on this proxy
# class. If the proxy class doesn't respond to a certain method, it's forwarded to the encapsulated string.
#
# name = 'Claus Müller'
# name.reverse # => "rell??M sualC"
# name.length # => 13
#
# name.mb_chars.reverse.to_s # => "rellüM sualC"
# name.mb_chars.length # => 12
#
# == Method chaining
#
# All the methods on the Chars proxy which normally return a string will return a Chars object. This allows
# method chaining on the result of any of these methods.
#
# name.mb_chars.reverse.length # => 12
#
# == Interoperability and configuration
#
# The Chars object tries to be as interchangeable with String objects as possible: sorting and comparing between
# String and Char work like expected. The bang! methods change the internal string representation in the Chars
# object. Interoperability problems can be resolved easily with a +to_s+ call.
#
# For more information about the methods defined on the Chars proxy see ActiveSupport::Multibyte::Chars. For
# information about how to change the default Multibyte behavior see ActiveSupport::Multibyte.
def mb_chars
ActiveSupport::Multibyte.proxy_class.new(self)
end
def is_utf8?
case encoding
when Encoding::UTF_8
valid_encoding?
when Encoding::ASCII_8BIT, Encoding::US_ASCII
dup.force_encoding(Encoding::UTF_8).valid_encoding?
else
false
end
end
end
|