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.
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