IO.Directory.GetFiles algorithm Bug?

[Hawk]

I was writing my own wildcard compare algorithm and making a custom GetFiles
routine when I came across what I think is a bug in .net's own GetFiles.

My routine was coming up with different results than GetFiles so naturally I
thought it was my routine that was bugged but when I investigated it the
results from my algorithm where exactly what I would expect.

call: System.IO.Directory.GetFiles("d:\\windows\\system3 2\\", "*ae?*.*",
SearchOption.AllDirectories);

a sample of the results:
d:\windows\system32\dllcache\kbdgae.dll

Correct me if I am wrong but is '?' not mean 1 and only 1 of any character?

should it not skip the above file because there is no character between the
"ae" and the '.'?

I bring this up because I use GetFiles often and want to make sure I
understand what it is doing.

[Greg Young]

This method actually calls the API method FindFirstFile underneath the
covers, this behavior is handled there so it is consistant with other
windows apps.

From what I hear the API under the covers still uses 8.3 resolution and gets
confused with some more complex search strings (i.e. combining ? and *)

Easy work around, bring back the files and do a regexp on your own.

Cheers,

Greg
"Hawk" <Ha**@discussions.microsoft.com> wrote in message
news:A6**********************************@microsof t.com...

I was writing my own wildcard compare algorithm and making a custom
GetFiles
routine when I came across what I think is a bug in .net's own GetFiles.

My routine was coming up with different results than GetFiles so naturally
I
thought it was my routine that was bugged but when I investigated it the
results from my algorithm where exactly what I would expect.

call: System.IO.Directory.GetFiles("d:\\windows\\system3 2\\", "*ae?*.*",
SearchOption.AllDirectories);

a sample of the results:
d:\windows\system32\dllcache\kbdgae.dll

Correct me if I am wrong but is '?' not mean 1 and only 1 of any
character?

should it not skip the above file because there is no character between
the
"ae" and the '.'?

I bring this up because I use GetFiles often and want to make sure I
understand what it is doing.