4 ms·

In many languages it's difficult fixing the string type without breaking existing code. In Ruby: String#upcase only handles ASCII (by spec), #length counts code

by judofyr 13y ago

In many languages it's difficult fixing the string type without breaking existing code. In Ruby: String#upcase only handles ASCII (by spec), #length counts codepoints, #reverse reverses codepoints. You can use UnicodeUtils if you need "full" Unicode support: >> UnicodeUtils.upcase("baﬄe") => "BAFFLE" >> graphemes = UnicodeUtils.each_grapheme("noe\u0308l").to_a >> graphemes.reverse.join => "lëon" >> graphemes.size => 4 >> graphemes[0, 3] => "noë"

lelf 13y ago
> String#upcase only handles ASCII (by spec) Bad for Ruby > You can use UnicodeUtils if you need "full" Unicode support: Oh, sure Betty:~ lelf$ ruby -r unicode_utils/u -e 'puts UnicodeUtils.each_grapheme("A‮͜CB‬D").to_a.reverse.join' D‬BC͜‮A So, "full" (it's not) Unicode support won't help you if you have little idea about what you're doing (like indexing stringه҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿s)
- jhull 13y ago
  what are these characters printing here?
  - preek 13y ago
    It's an awesome little gadget - looks like one character, but is a really big messy bunch of bytes: "\xD9\x87\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\ x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD 2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\ xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xB F\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\ xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xC C\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\ xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x8 8\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\ x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD 2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\ xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xB F\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\ xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xC C\xBF\n"
    - jhull 13y ago
      funny that an ad comes up when you search that character on google. http://imgur.com/Y5vkbHF http://imgur.com/Y5vkbHF
    - notJim 13y ago
      Ugh your post is totally breaking the page layout!
- cpeterso 13y ago
  Strange. Chrome indents those characters into a >-shaped "flock formation", but Firefox renders them as a vertical column.

by judofyr 13y ago

lelf 13y ago

> String#upcase only handles ASCII (by spec) Bad for Ruby > You can use UnicodeUtils if you need "full" Unicode support: Oh, sure Betty:~ lelf$ ruby -r unicode_utils/u -e 'puts UnicodeUtils.each_grapheme("A‮͜CB‬D").to_a.reverse.join' D‬BC͜‮A So, "full" (it's not) Unicode support won't help you if you have little idea about what you're doing (like indexing stringه҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿s)

jhull 13y ago
what are these characters printing here?
- preek 13y ago
  It's an awesome little gadget - looks like one character, but is a really big messy bunch of bytes: "\xD9\x87\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\ x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD 2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\ xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xB F\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\ xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xC C\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\ xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x8 8\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\ x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD 2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\ xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xB F\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\ xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xCC\xBF\xD2\x88\xC C\xBF\n"
  - jhull 13y ago
    funny that an ad comes up when you search that character on google. http://imgur.com/Y5vkbHF http://imgur.com/Y5vkbHF
  - notJim 13y ago
    Ugh your post is totally breaking the page layout!
cpeterso 13y ago
Strange. Chrome indents those characters into a >-shaped "flock formation", but Firefox renders them as a vertical column.