Rails - May 2005 - Easy Regular Expression and File Uploading Questions

I am trying to access the filename of an uploaded file. I have tried to 
follow the steps and examples of several howtos, but it isn''t working.
I
might be forgetting some important part, but here is what I have:

def testaction
        @just_filename =
@params[''post''][''file''].original_filename
        @just_filename = File.basename(@just_filename)
        @just_filename = @just_filename.sub(/[^\w\.\-]/,''_'')
end

The file uploaded "test file with spaces.jpg" in linux gives out 
"test_file with spaces.jpg". Notice the underscore only works once.
Using Internet Explorer on Windows will give me "C_\...\to\my\test file 
with spaces.jpg". Notice an underscore only appears once and replaces 
the colon that would normally appear.
Of course, I want the C:\...\path\to\ stuff to disappear, but my sub 
method isn''t working either. It only gets rid of the first invalid 
argument and replaces it with an underscore, but neglects to recursively 
act throughout the entire string. I copied this directly from the howto 
at http://wiki.rubyonrails.com/rails/show/HowtoUploadFiles but it isn''t
working. I would fix the sub method but I have no grasp on regular 
expressions as I have little PHP experience and am starting RoR.

So I have two problems:
1. Wipe out the absolute path given by Internet Explorer, leave only the 
filename.
2. "Sanitize" my filenames to be inserted into the filesystem and make
sure it recursively pursues through the string.

I would seriously appreciate any help or code snippets! Thank you for 
your help in advance!
---
[This E-mail scanned for viruses by Declude Virus]

Alexey Verkhovsky <alex@...> writes:
> 
> Michael Klein wrote:
> 
> > The file uploaded "test file with spaces.jpg" in linux gives
out
> > "test_file with spaces.jpg". Notice the underscore only
works once.
> 
> String#sub replaces only the first match. String#gsub replaces all 
> matches. That''s your problem.
> 
Thank you very much, that answers the first question!

Now does anyone know an effective way to get rid of Internet Explorer''s
original_filename?

Michael Klein wrote:
> The file uploaded "test file with spaces.jpg" in linux gives out 
> "test_file with spaces.jpg". Notice the underscore only works
once.
String#sub replaces only the first match. String#gsub replaces all 
matches. That''s your problem.

-- 
Best regards,

Alexey Verkhovsky

Ruby Forum: http://ruby-forum.org        (moderator)
RForum:     http://rforum.andreas-s.net  (co-author)
Instiki:    http://instiki.org           (maintainer)

On Tuesday, May 3, 2005, 10:42:46 AM, Michael wrote:
> Alexey Verkhovsky <alex@...> writes:
>> 
>> Michael Klein wrote:
>> 
>> > The file uploaded "test file with spaces.jpg" in linux
gives out
>> > "test_file with spaces.jpg". Notice the underscore only
works once.
>> 
>> String#sub replaces only the first match. String#gsub replaces all 
>> matches. That''s your problem.
>> 
> Thank you very much, that answers the first question!
> Now does anyone know an effective way to get rid of Internet
Explorer''s
> original_filename?
I found your original post hard to read, but I suspect you may want

  File.basename(''C:\blah\blah\blah.txt'') ->
''blah.txt''

Gavin

Gavin Sinclair <gsinclair@...> writes:
> 
> I found your original post hard to read, but I suspect you may want
> 
>   File.basename(''C:\blah\blah\blah.txt'') ->
''blah.txt''
> 
> Gavin
> 
Gavin,

that''s exactly it. sorry about being unclear.

Michael