diff options
Diffstat (limited to 'activesupport/lib/active_support/multibyte/chars.rb')
| -rw-r--r-- | activesupport/lib/active_support/multibyte/chars.rb | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/multibyte/chars.rb b/activesupport/lib/active_support/multibyte/chars.rb index 96ed35f0e0..64a35dca40 100644 --- a/activesupport/lib/active_support/multibyte/chars.rb +++ b/activesupport/lib/active_support/multibyte/chars.rb @@ -206,7 +206,22 @@ module ActiveSupport #:nodoc: # 'Café périferôl'.mb_chars.index('ô') #=> 12 # 'Café périferôl'.mb_chars.index(/\w/u) #=> 0 def index(needle, offset=0) - index = @wrapped_string.index(needle, offset) + wrapped_offset = self.first(offset).wrapped_string.length + index = @wrapped_string.index(needle, wrapped_offset) + index ? (self.class.u_unpack(@wrapped_string.slice(0...index)).size) : nil + end + + # Returns the position _needle_ in the string, counting in + # codepoints, searching backward from _offset_ or the end of the + # string. Returns +nil+ if _needle_ isn't found. + # + # Example: + # 'Café périferôl'.mb_chars.rindex('é') #=> 6 + # 'Café périferôl'.mb_chars.rindex(/\w/u) #=> 13 + def rindex(needle, offset=nil) + offset ||= length + wrapped_offset = self.first(offset).wrapped_string.length + index = @wrapped_string.rindex(needle, wrapped_offset) index ? (self.class.u_unpack(@wrapped_string.slice(0...index)).size) : nil end |