Bug in find's -regex switch?

[Aleksander Adamowski]

Hi!
I think I've found a bug in find's regex option. I'm using findutils-

I have the directory with a following subdirectory:

2003-04-22

When I launch "find ./" I get:

./
./2003-04-22

When I launch "find ./ -regex '.*[0-9]*-.*'" I get:

 ./2003-04-22

So far so good. When I launch "find ./ -regex '.*[0-9]{4}-.*'" I get empty 
results.
Ok, maybe those are basic regular expressiona (as deatiled in regex in 
chapter 7 of manpages), and I need to escape boundary's curly braces:
I try to launch "find ./ -regex '.*[0-9]\{4\}-.*'". I get empty results. I 
launch "find ./ -regex '.*[0-9]\{4,4\}-.*'". I get empty results. I launch 
"find ./ -regex '.*[0-9]{4,4}-.*'". I get empty results.

So it seems that the regex switch only implements some undocumented subset 
of regular expressions syntax.


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