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

Ruby IronRuby
1

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_newhttp://www.ruby-doc.org/doxygen/1.8.4/string_8c-source.html#l00078
, 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

2

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 S. <

3

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 S.
<[email protected]