Forum: IronRuby Encoding::InvalidByteSequenceError: character U+7453 can't be encoded in IBM437

Hello,

I'm getting the following error while running one of the examples 
(Enumerate
Top Level Windows <https://github.com/ffi/ffi/wiki/Windows-Examples>) 
from
the FFI wiki:

*Encoding::InvalidByteSequenceError: character U+7453 can't be encoded 
in
IBM437*
*        from (irb):26:in `puts'*

The example works fine in MRI 1.9.2, so I'm curious if this might be a 
bug,
or if I'm screwing something up in my FFI impl. Official FFI uses
*str_new<http://www.ruby-doc.org/doxygen/1.8.4/string_8c-so...
*, which in turn performs a simple *memcopy* given a *char**, which is 
more
or less what I'm doing to construct my string...

At any rate, the example, which features callbacks, makes it this far 
(which
is exciting):

*[001] Found ''*
*[002] Found ''*
*[003] Found ''*
*[004] Found ''*
*[005] Found ''*
*[006] Found ''*
*[007] Found ''*
*[008] Found ''*
*Encoding::InvalidByteSequenceError: character U+7453 can't be encoded 
in
IBM437*
*        from (irb):26:in `puts'*


-Charles

On second thought (and with a little more rest), I'm pretty positive 
this my
problem :).

-Charles

On Fri, Apr 8, 2011 at 10:42 PM, Charles Strahan <

Nope - must be a bug in IronRuby:

*MRI v1.9.2:*
*
irb(main):001:0> str = "%s" % "\u00c2"
=> "\u00C2"
irb(main):002:0> str.encoding
=> #<Encoding:UTF-8>
irb(main):003:0> puts str
Â
*

*IronRuby v1.1.3:*
*
irb(main):001:0> str = "%s" % "\u00c2"
=> "\xC2"
irb(main):002:0> str.encoding
=> #<Encoding:IBM437>
irb(main):003:0> puts str
Encoding::InvalidByteSequenceError: character U+00C2 can't be encoded in
IBM437
        from (irb):3:in `puts'
        from (irb):3
        from C:/IronRuby/bin/irb:13
*



*String#%* seems to handle encoding differently between the two Rubies. 
If
I can figure it out, I'll send a pull request.


Cheers,
-Charles


On Sat, Apr 9, 2011 at 7:18 PM, Charles Strahan 
<charles.c.strahan@gmail.com