# Strange error in jcode.rb when converting range to array **URL:** \ **Category:** Ruby\ **Created:** [September 27, 2006, 11:44pm UTC](https://www.ruby-forum.com/t/strange-error-in-jcode-rb-when-converting-range-to-array/70282 "2006-09-27T23:44:16Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Hammed\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/7feea3/32.png) [@Hammed\_M](https://www.ruby-forum.com/u/Hammed_M)\ **Post date:** [September 27, 2006, 11:44pm UTC](https://www.ruby-forum.com/t/strange-error-in-jcode-rb-when-converting-range-to-array/70282/1 "2006-09-27T23:44:16Z")
In my rails app I’ve line with the following code: (“a”…“z”).to\_a Simple enough and it’s been working for a while. Last night this line started throwing the following error: undefined method `[]' for nil:NilClass /usr/local/lib/ruby/1.8/jcode.rb:83:in`succ!’ /usr/local/lib/ruby/1.8/jcode.rb:94 I looked up jcode.rb and the comments for this file say that it’s “# jcode.rb - ruby code to handle japanese (EUC/SJIS) string” This is the part of jcode.rb that throws the error (line 83) 78 def succ! 79 reg = end\_regexp 80 if self =~ reg 81 succ\_table = SUCC[$KCODE[0,1].downcase] 83 begin 84 self[-1] += succ\_table[self[-1]] 85 self[-2] += 1 if self[-1] == 0 86 end while self !~ reg 87 self 88 else 89 original\_succ! 90 end 91 end Debugging is difficult because if I restart the app, the problem goes away…for a while. Has anyone else encountered this error before? It’s obviously being caused by something I’ve added to my app recently. I just can’t figure out what. ruby -v ruby 1.8.4 (2005-12-24) [i686-darwin8.5.2] Thanks Hammed ---
**Author:** ![Hammed\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/7feea3/32.png) [@Hammed\_M](https://www.ruby-forum.com/u/Hammed_M)\ **Post date:** [September 28, 2006, 7:21pm UTC](https://www.ruby-forum.com/t/strange-error-in-jcode-rb-when-converting-range-to-array/70282/2 "2006-09-28T19:21:04Z")
Hammed M. wrote: > In my rails app I’ve line with the following code: > > (“a”…“z”).to\_a When I try this with jcode loaded it immediately breaks. It looks like other people have noticed it too and there is a fix: [http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-dev/28980](http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-dev/28980) I guess you will have to work around it for now. ---
**Author:** ![Hammed\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/7feea3/32.png) [@Hammed\_M](https://www.ruby-forum.com/u/Hammed_M)\ **Post date:** [September 29, 2006, 2:16am UTC](https://www.ruby-forum.com/t/strange-error-in-jcode-rb-when-converting-range-to-array/70282/3 "2006-09-29T02:16:19Z")
Hi, In message “Re: Strange error in jcode.rb when converting range to array” on Fri, 29 Sep 2006 02:20:18 +0900, “Manfred Stienstra” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes: |Hammed M. wrote: |\> In my rails app I’ve line with the following code: |\> |\> (“a”…“z”).to\_a | |When I try this with jcode loaded it immediately breaks. It looks like |other people have noticed it too and there is a fix: | |[http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-dev/28980](http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-dev/28980) No, it’s about 1.9 and the OP was using 1.8.4. I will examine it later. ``` matz. ``` ---
**Author:** ![Hammed\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/7feea3/32.png) [@Hammed\_M](https://www.ruby-forum.com/u/Hammed_M)\ **Post date:** [September 29, 2006, 5:28am UTC](https://www.ruby-forum.com/t/strange-error-in-jcode-rb-when-converting-range-to-array/70282/4 "2006-09-29T05:28:59Z")
Hi, In message “Re: Strange error in jcode.rb when converting range to array” on Fri, 29 Sep 2006 09:49:03 +0900, “Hammed M.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes: |The perplexing part for me was why jcode.rb was even being used by my |code. A bit embarrasing to admit on a mailing list but somehow the |line include “jcode” got included in one of my less used rails |controller. I don’t have any need for Japanese characters in my app so |I can’t imagine adding that line myself. I’m suspecting Textmate has a |hotkey for inserting that line that I pressed inadvertantly. I’ve heard Rails uses jcode to handle UTF-8. I was telling the article in the ruby-dev list has nothing related to your problem. It is caused by a bug in jcode.rb, and is just fixed in the CVS. ``` matz. ``` ---
**Author:** ![Hammed\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/7feea3/32.png) [@Hammed\_M](https://www.ruby-forum.com/u/Hammed_M)\ **Post date:** [September 29, 2006, 2:50am UTC](https://www.ruby-forum.com/t/strange-error-in-jcode-rb-when-converting-range-to-array/70282/5 "2006-09-29T02:50:21Z")
Hi Matz, The perplexing part for me was why jcode.rb was even being used by my code. A bit embarrasing to admit on a mailing list but somehow the line include “jcode” got included in one of my less used rails controller. I don’t have any need for Japanese characters in my app so I can’t imagine adding that line myself. I’m suspecting Textmate has a hotkey for inserting that line that I pressed inadvertantly. Hammed