RE: RE: Remove '.' and '..' from a list of filenames

I didn't vote you down, but I can see perhaps why someone did. Isn't your reply incorrect? For example, if I write the following:

@vals = (".","..",".\n","..\n","foo","foo\n","bar","bar\n");

foreach (grep !/^[.]{1,2}$/,@vals) {
  print "$_\n";
}
[download]

It spits out:

foo
foo

bar
bar
[download]

...as I would expect. It filtered out ".\n" and "..\n" just fine. Can you elaborate?

Comment on RE: RE: Remove '.' and '..' from a list of filenames Select or Download Code

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RE: RE: RE: Remove '.' and '..' from a list of filenames by mikfire (Deacon) on Aug 23, 2000 at 00:48 UTC
..\n is a valid, albeit very bizarre, file name. This regex would incorrectly filter them out. I believe a more correct solution is to say `/\.\.?\z/` \z is a zero width assertion that is true when you are at the actual end of the line as opposed to $, which anchors to the end of the line or possibly \n and the end of the line. mikfire	[reply] [d/l]
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RE: RE: RE: Remove '.' and '..' from a list of filenames by merlyn (Sage) on Aug 23, 2000 at 00:44 UTC
Ahh, the problem is that it filters those out when it shouldn't. Sorry, reversed logic strikes. In other words, `/^\.$/` [download] matches both dot and dot-newline, and if you were expecting it to match only dot, you could be in for a big shock. I've edited the original note to reflect what I meant, not what I said. {grin} -- Randal L. Schwartz, Perl hacker	[reply] [d/l]