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Deprecate Unicode's #pack_graphemes and #unpack_graphemes methods #34254



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@frodsan frodsan commented Oct 18, 2018

in favor of array.flatten.pack("U*") and string.scan(/\X/).map(&:codepoints), respectively.

r? @jeremy

in favor of `array.flatten.pack("U*")` and `string.scan(/\X/).map(&:codepoints)`, respectively.
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Thanks for the pull request, and welcome! The Rails team is excited to review your changes, and you should hear from @jeremy (or someone else) soon.

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frodsan commented Oct 18, 2018

Also, what do you think about this change? 😄

diff --git a/activesupport/lib/active_support/multibyte/chars.rb b/activesupport/lib/active_support/multibyte/chars.rb
index bd8cab3460..44ece3fe67 100644
--- a/activesupport/lib/active_support/multibyte/chars.rb
+++ b/activesupport/lib/active_support/multibyte/chars.rb
@@ -122,7 +122,7 @@ def reverse
       #   'こんにちは'.mb_chars.limit(7).to_s # => "こん"
       def limit(limit)
-        slice(0...translate_offset(limit))
+        chars(@wrapped_string.truncate_bytes(limit, omission: nil))
       # Capitalizes the first letter of every word, when possible.
@@ -208,18 +208,6 @@ def as_json(options = nil) #:nodoc:
-        def translate_offset(byte_offset)
-          return nil if byte_offset.nil?
-          return 0   if @wrapped_string == ""
-          begin
-            @wrapped_string.byteslice(0...byte_offset).unpack("U*").length
-          rescue ArgumentError
-            byte_offset -= 1
-            retry
-          end
-        end
         def chars(string)

@jeremy jeremy merged commit b0f3070 into rails:master Oct 18, 2018
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3 participants