StringIO::ungetc can't handle the ";" character correctly.
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Key: JRUBY-5455
URL: http://jira.codehaus.org/browse/JRUBY-5455
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules, Ruby 1.9
Affects Versions: JRuby 1.6RC1
Environment: $ uname -a
Darwin MacBook-Pro.local 10.6.0 Darwin Kernel Version 10.6.0: Wed Nov 10
18:13:17 PST 2010; root:xnu-1504.9.26~3/RELEASE_I386 i386
$ jruby --version
jruby 1.6.0.RC1 (ruby 1.9.2 trunk 136) (2011-01-10 769f847) (Java HotSpot(TM)
64-Bit Server VM 1.6.0_22) [darwin-x86_64-java]
Reporter: Kiyoka Nishiyama
Attachments: t3.rb
I found this issue with this source code.
{code:title=t3.rb|borderStyle=solid}
# -*- coding: utf-8 -*-
require 'stringio'
def ungetc_test( )
f = StringIO.open(";\n", "r:utf-8")
ch = f.getc
printf( "first : [%s]\n", ch )
f.ungetc( ch )
ch2 = f.getc
printf( "second : [%s]\n", ch2 )
end
ungetc_test( )
{code}
{code:title=result of JRuby 1.6.0 RC1}
$ jruby t3.rb
first : [59]
second : [59]
{code}
{code:title=result of CRuby 1.9.2p136}
ruby t3.rb
first : [;]
second : [;]
{code}
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