Bug #3882: REGRESSION: File.extname() broken (at least >= 1.8.7)

• Status: Closed
• Assignee: wyhaines (Kirk Haines)
• Target version: -
• Backport: 2.5: UNKNOWN, 2.6: UNKNOWN

[AndiM (Andreas Mohr)]

=begin
Hi,

#!/usr/bin/ruby

require 'pathname'

mytest_filename = ARGV.shift

#mytest_filename_cleaned = Pathname.new(mytest_filename).cleanpath
mytest_filename_cleaned = mytest_filename

puts "mytest_filename #{mytest_filename} mytest_filename_cleaned #{mytest_filename_cleaned}"

myext = File.extname(mytest_filename_cleaned)
puts "mytest_filename_cleaned #{mytest_filename_cleaned} myext #{myext}"

Try .//test.out
Won't do what it should, at least on u10.04 ruby1.8 1.8.7.249-2 and ruby1.9.1 1.9.1.378-1,
as opposed to correct behaviour on ruby-1.8.5-5.el5_4.8.

Since http://ruby-doc.org/core/classes/File.html#M002543 doesn't really specify extname() argument composition constraints
(other than it being a path), it should accept duplicate slashes since this syntax is treated as a valid path pretty much everywhere.

Do you happen to have a test suite for these core API things? Since extname() also had some other issues (spaces before extension etc.),
this would be useful.

Other than this rather disturbing behaviour, I'm VERY impressed with Ruby.

Thanks,

Andreas Mohr
=end

[usa (Usaku NAKAMURA)]

• Status changed from Open to Assigned
• Assignee set to wyhaines (Kirk Haines)
• Priority changed from 5 to Normal

=begin
It's already fixed at 1.8.7-p302.

BTW, ruby_1_8_6 branch has this problem yet.
=end

[nobu (Nobuyoshi Nakada)]

=begin
Backport r27404.
=end

[nobu (Nobuyoshi Nakada)]

• Category set to core

=begin

=end

[jeremyevans0 (Jeremy Evans)]

• Tracker changed from Backport to Bug
• Project changed from 11 to Ruby
• Description updated (diff)
• Status changed from Assigned to Closed
• Backport set to 2.5: UNKNOWN, 2.6: UNKNOWN