Use more descriptive method names

activesupport/lib/active_support/multibyte/chars.rb

@@ -90,7 +90,7 @@ def slice!(*args)
       # Example:
       #   'Café'.mb_chars.reverse.to_s # => 'éfaC'
       def reverse
-        chars(Unicode.g_unpack(@wrapped_string).reverse.flatten.pack('U*'))
+        chars(Unicode.unpack_graphemes(@wrapped_string).reverse.flatten.pack('U*'))
       end
 
       # Limit the byte size of the string to a number of bytes without breaking characters. Usable
@@ -170,7 +170,7 @@ def compose
       #   'क्षि'.mb_chars.length   # => 4
       #   'क्षि'.mb_chars.g_length # => 3
       def g_length
-        Unicode.g_unpack(@wrapped_string).length
+        Unicode.unpack_graphemes(@wrapped_string).length
       end
 
       # Replaces all ISO-8859-1 or CP1252 characters by their UTF-8 equivalent resulting in a valid UTF-8 string.

activesupport/lib/active_support/multibyte/unicode.rb

@@ -73,9 +73,9 @@ def in_char_class?(codepoint, classes)
       # Unpack the string at grapheme boundaries. Returns a list of character lists.
       #
       # Example:
-      #   Unicode.g_unpack('क्षि') # => [[2325, 2381], [2359], [2367]]
-      #   Unicode.g_unpack('Café') # => [[67], [97], [102], [233]]
-      def g_unpack(string)
+      #   Unicode.unpack_graphemes('क्षि') # => [[2325, 2381], [2359], [2367]]
+      #   Unicode.unpack_graphemes('Café') # => [[67], [97], [102], [233]]
+      def unpack_graphemes(string)
         codepoints = string.codepoints.to_a
         unpacked = []
         pos = 0
@@ -105,11 +105,11 @@ def g_unpack(string)
         unpacked
       end
 
-      # Reverse operation of g_unpack.
+      # Reverse operation of unpack_graphemes.
       #
       # Example:
-      #   Unicode.g_pack(Unicode.g_unpack('क्षि')) # => 'क्षि'
-      def g_pack(unpacked)
+      #   Unicode.pack_graphemes(Unicode.unpack_graphemes('क्षि')) # => 'क्षि'
+      def pack_graphemes(unpacked)
         unpacked.flatten.pack('U*')
       end