Bug #13008: File::basename fails if extension contains a colon

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.2.4p230 (2015-12-16 revision 53155) [x86_64-cygwin]
• Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN

[rovf (Ronald Fischer)]

 File.basename('a/b/c.d:12')

returns

c.d

but should return

c.d:12

[jeremyevans0 (Jeremy Evans)]

I don't think this is a bug. : is the file stream separator in NTFS (https://blogs.technet.microsoft.com/askcore/2013/03/24/alternate-data-streams-in-ntfs/). On *nix systems, you do get c.d:12.

[nobu (Nobuyoshi Nakada)]

I did think so, but on recent cygwin, touch c.d:12 makes a file "c.d\u{F03A}12".
Seems : is mapped to that Private Use Area character.
I'm not sure if we should support it now.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset r57009.

---

file.c: cygwin behavior

• file.c: recent cygwin hides NTFS specific features.
  [ruby-core:78497] [Bug #13008]