Details
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Type:
Bug
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Status:
Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: JRuby 1.1.2
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Fix Version/s: JRuby 1.1.3
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Component/s: Interpreter
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Labels:None
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Environment:WinXP SP2
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Number of attachments :
Description
I'm a Chinese user, the language set of my system is Simplified Chinese.
For example, here is a test.rb:
#------------------------------
ARGV.each do |arg|
puts "#
\n"
end
#-----------------------------
And I will use @ to replace any Simplified Chinese Characters(Take the consideration of your non-Chinese Support system).
Now test.rb is under D:@@\
The command is : jruby.bat D:@@\test.rb arg1 @@@ arg3
Then jruby told me that she can't find D:??\test.rb. As you see, jruby use the same amouts of ? to replace Chinese Characters which results to an error.
Well, I move test.rb to D:\test\ , then execute : jruby.bat D:\test\test.rb arg1 @@@ arg3 .
Now the output is :
arg1
???
arg3
It seems that this bug exists in every case involed command line arguments.
Yesterday I downloaded the source code and find something maybe useful(Now I'm using another machine, I can only write them down according to my memory):
In org\jruby\utils\RubyFile.java , there is a createfile method. After "filepath=new String(filepath.getBytes("ISO-8859-1"),"UTF-8")", the Chinese Characters in the String "filepath" are replaced with '?'. I don't understand the meaning of this line of code, but I know the "ISO-8859-1" is the main encoding method of English speaking countries, when there is a Chinese character in "filepath", "getBytes()" can't recognize it within ISO-5589-1, and then replace it with '?' in the return bytes.
Then I commented this line, and it worked! Jruby can process .rb files whose path including Chinese characters. But maybe this line of code is of use somewhere else, which I hope you can tell me.
Now the problem is only the arguments.
I traced it from org\jruby\RubyGlobal.java to the build_lib\ByteList.jar which I can't find source code(why?), now I'm sure the problem lies in Bytelist.jar, and it should be something like "getBytes("ISO-8859-1")".
In org\jruby\RubyGlobal.java, there's a RubyArray called argvArray[], the program adds every arguments to it, then define it as "ARGV". Just after "argvArray.add(runtime.newString(argv[i]))", the Chinese characters in the argv[i] is replaced with '?'. When I start with runtime.newString finally I got nothing because I only traced it to ByteList.jar.
Then I replace that line with simply "argvArray.add(argv[i])". But in my WinXP SP2 it still didn't work(useing the same example, the output text is arg1\n <TextOfAMess>\n arg3\n), but things is getting better because there is no longer '?'s. Later I restart my computer to enter my Linux, whose locale is UTF-8, what surprised me is that everything became OK. Thinking of my WinXp's locale is GB2312(Simplified Chinese), maybe jruby had converted the arguments in the ARGV to UTF-8, and the problem of XP is XP just can't display them normally.
But if I use the arguments as a path, more complex problem occurs.
For example: jruby.bat test2.rb "D:\test@@\readme.txt"
And I tried to read the contents of "readme.txt" in the test2.rb, even in Linux, jruby would told my can't find D:\test\<TextOfAMess>\readme.txt.
Then I have to stopped because things was worse than I had expected.
My English is poor, and I hope you can get want I'm writing about. Thanks for reading, thanks for your help.
Activity
About one hour after I post last comment, I found I can open that url.
But nothing is improved.
From cmd.exe from WinXP:
F:\MyStudio\jruby-1.1.2\bin>.\jruby.bat -v
jruby 1.1.3-dev (ruby 1.8.6 patchlevel 114) (2008-07-15 rev 7174) [x86-java]
F:\MyStudio\jruby-1.1.2\bin>type test_en.rb
puts ARGV[0]
puts '中文字符串'
F:\MyStudio\jruby-1.1.2\bin>.\jruby.bat test_en.rb 中文参数
????
中文字符串
F:\MyStudio\jruby-1.1.2\bin>ren test_en.rb test_中文.rb
F:\MyStudio\jruby-1.1.2\bin>.\jruby.bat test_中文.rb 中文参数
Error opening script file: F:/MyStudio/jruby-1.1.2/bin/test_??.rb (文件名、目录名或卷标语法不正确。)
From Linux:
[Dice@localhost lib]$ java -jar jruby.jar -v
jruby 1.1.3-dev (ruby 1.8.6 patchlevel 114) (2008-07-15 rev 7174) [i386-java]
[Dice@localhost lib]$ cat test_en.rb
puts ARGV[0]
puts '中文字符串'
[Dice@localhost lib]$ java -jar jruby.jar test_en.rb 中文参数
????
中文字符串
[Dice@localhost lib]$ mv test_en.rb test_中文.rb
[Dice@localhost lib]$ java -jar jruby.jar test_中文.rb 中文参数
Error opening script file: /mnt/hda8/MyStudio/jruby-1.1.2/lib/test_??.rb (No such file or directory)
"test_en.rb" is encoded with GB2312 in WinXP, but UTF-8 in Linux.
Ok, I pushed another attempt at this. Unfortunately, as you suspected, I do not have access to a machine that isn't UTF-8 by default. So I will have to rely on you for testing 
The additional change is based on your suggestion that always creating a UTF-8 string will be incorrect when UTF-8 is not default. So I allow Java to encode the ARGV strings as whatever the platform default encoding is supposed to be.
I have just started a new dist build on http://jruby.headius.com:8080/hudson. Hopefully you will be able to try it again.
Very helpful, thank you! I think we should modify that filePath line for certain to use whatever the host encoding is. As for the arguments, I think the only issue is that when feeding them into ARGV we need to make sure they're encoded from host encoding to UTF-8, rather than assuming they're coming in as ISO-8859-1 as on western systems.
This shouldn't be hard to fix, so I'm marking it for 1.1.3 and we'll try to get it in soon. Thank you for the report!