diff options
Diffstat (limited to 'activesupport/lib/active_support/multibyte/chars.rb')
| -rw-r--r-- | activesupport/lib/active_support/multibyte/chars.rb | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/multibyte/chars.rb b/activesupport/lib/active_support/multibyte/chars.rb index a00b165222..60f082bcc1 100644 --- a/activesupport/lib/active_support/multibyte/chars.rb +++ b/activesupport/lib/active_support/multibyte/chars.rb @@ -344,7 +344,19 @@ module ActiveSupport #:nodoc: end alias_method :[], :slice - # Converts first character in the string to Unicode value + # Like <tt>String#slice!</tt>, except instead of byte offsets you specify character offsets. + # + # Example: + # s = 'こんにちは' + # s.mb_chars.slice!(2..3).to_s #=> "にち" + # s #=> "こんは" + def slice!(*args) + slice = self[*args] + self[*args] = '' + slice + end + + # Returns the codepoint of the first character in the string. # # Example: # 'こんにちは'.mb_chars.ord #=> 12371 @@ -432,7 +444,7 @@ module ActiveSupport #:nodoc: chars(self.class.tidy_bytes(@wrapped_string)) end - %w(lstrip rstrip strip reverse upcase downcase slice tidy_bytes capitalize).each do |method| + %w(lstrip rstrip strip reverse upcase downcase tidy_bytes capitalize).each do |method| define_method("#{method}!") do |*args| unless args.nil? @wrapped_string = send(method, *args).to_s @@ -617,6 +629,8 @@ module ActiveSupport #:nodoc: # Replaces all ISO-8859-1 or CP1252 characters by their UTF-8 equivalent resulting in a valid UTF-8 string. def tidy_bytes(string) string.split(//u).map do |c| + c.force_encoding(Encoding::ASCII) if c.respond_to?(:force_encoding) + if !UTF8_PAT.match(c) n = c.unpack('C')[0] n < 128 ? n.chr : |