JRuby defaults to "\r\n" newlines on Windows, where MRI 1.8 and 1.9 use just
"\n"
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Key: JRUBY-4253
URL: http://jira.codehaus.org/browse/JRUBY-4253
Project: JRuby
Issue Type: Bug
Components: Parser
Affects Versions: JRuby 1.4
Environment: Windows XP Pro SP3
Reporter: Steve Shreeve
Assignee: Thomas E Enebo
Priority: Minor
On Windows, Ruby scripts are normally saved with the default "\r\n" line
endings. When using DATA.gets to read text below the "__END__" tag, however,
MRI 1.8 and 1.9 silently remove the "\r" character (leaving just "\n"). This
means that the same script performs differently on Windows using MRI 1.8/1.9
versus JRuby 1.4. I can force the file to save with UNIX-style line endings,
but it would be convenient if JRuby performed identically to MRI 1.8/1.9.
Here's an example:
=8<===8<===8<===8<===8<===8<===8<===8<===8<==
p "group 1", DATA.gets("\n\n")
p "group 2", DATA.gets("\n\n")
p "group 3", DATA.gets("\n\n")
__END__
This is group number 1
It contains some text here
And a little more text
This is group number 2
It also has some text
Again, we've got group number three
With even a little more text than the others
It sort of rambles on a bit and then, with a poof...
It's done!
=8<===8<===8<===8<===8<===8<===8<===8<===8<==
When I run this in MRI 1.8/1.9, I get the following:
"group 1"
"\nThis is group number 1\nIt contains some text here\nAnd a little more
text\n\n"
"group 2"
"This is group number 2\nIt also has some text\n\n"
"group 3"
"Again, we've got group number three\nWith even a little more text than the
others\nIt sort of rambles on a bit and then, with a poof...\nIt's done!\n"
When I run this in JRuby 1.4, I get the following:
"group 1"
"\r\nThis is group number 1\r\nIt contains some text here\r\nAnd a little more
text\r\n\r\nThis is group number 2\r\nIt also has some text\r\n\r\nAgain, we've
got group number three\r\nWith even a little more text than the others\r\nIt
sort of rambles on a bit and then, with a poof...\r\nIt's done!\r\n"
"group 2"
nil
"group 3"
nil
This is not a huge deal, but it would be helpful to fix.
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