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Re: case-insensitive file extensions
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From: |
Richard Frith-Macdonald |
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Subject: |
Re: case-insensitive file extensions |
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Date: |
Sat, 12 Apr 2003 15:35:28 +0100 |
On Saturday, April 12, 2003, at 12:37 pm, Rob Burns wrote:
In NSWorkspace the methods concerned with selecting icons, and apps
for files with a given extension operate as if extensions were case
insensitive. There are comments to the effect that they are supposed
to be case-insensitive. But, I couldn't find this in the documentation
anywhere. My question is, should apps wanting to do checks on a file
extension, always assume that they could be getting either a .ZIP file
or a .zip file. (because an app that advertises for just .zip files
could recieve both) or should NSOpenPanel, gopen, and GWorkspace be
providing filenames with only lowercase extensions, as extensions are
supposed to be case-insensitive. Currently those three places provide
the actual filename, preserving the case of the extension.
The filename the app receives should be the actual file name it is to
open ... There may be
a file.zip and a file.ZIP and a file.ZiP etc all in the same directory,
and the app needs to know
which one it is being asked to open.
The app should therefore do
if ([[name pathExtension] caseInsensitiveCompare: @"zip"] ==
NSOrderedSame)