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require 'strscan'
module ActiveSupport #:nodoc:
module CoreExtensions #:nodoc:
module String #:nodoc:
# Custom string iterators
module Iterators
def self.append_features(base)
super unless '1.9'.respond_to?(:each_char)
end
# Yields a single-character string for each character in the string.
# When $KCODE = 'UTF8', multi-byte characters are yielded appropriately.
def each_char
scanner, char = StringScanner.new(self), /./mu
loop { yield(scanner.scan(char) || break) }
end
end
end
end
end
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