Dear list,
I want to check if a file extension is registered as a text file. So I made a
little category method on NSString like this:
- (BOOL)isText
{
BOOL fileIsText = NO;
CFStringRef fileExtension = (CFStringRef) self;
CFStringRef fileUTI =
UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension,
fileExtension, NULL);
if (UTTypeConformsTo(fileUTI, kUTTypeText)) {
fileIsText = YES;
}
CFRelease(fileUTI);
return fileIsText;
}
This works fine on 10.7. On 10.6.8 when
self = @"tex"
this returns NO and fileUTI is dyn.age81k3p2.
Anybody got an idea what this dyn.* means?
Cheers,
Martin
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