Re: Opening a zipped file in RunRev?

[Jim Hurley]

Message: 8
Date: Wed, 3 Mar 2004 13:58:20 -0500
From: Brian Yennie <[EMAIL PROTECTED]>
Subject: Re: Opening a zipped file in RunRev?
To: How to use Revolution <[EMAIL PROTECTED]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=US-ASCII; format=flowed
    save this stack as compress(url "file:Macintosh HD/Desktop
 Folder/MyStackFile2.rev")
 (This produces gibberish for the file name on my HD.)
I think you want something more like:

put compress(this stack) into url "file:Macintosh HD/Desktop
Folder/MyStackFile2.rev.gz"
 And then what? Are you assuming the user (the person downloading this
 file from the web) is running Run Rev and that the Run Rev application
 has the instructions for decompressing the downloaded file and then
 opening it? And what does that code look like? Anything like:
     uncompress(url "file:??????)

 > And are we talking about zip files or gzip files?

Rev's compression is gzip.

To open the above, you could do:

put uncompress(url "file:Macintosh HD/Desktop
Folder/MyStackFile2.rev.gz") into url "file:Macintosh HD/Desktop
Folder/MyStackFile2.rev"
OR open it directly without saving to disk:

go stack uncompress(url "file:Macintosh HD/Desktop
Folder/MyStackFile2.rev.gz")
HTH,
Brian


Brian,

Thank you for this. I was successful with: put compress(field 1) into 
url "file:xxx"

But I was not able to retrieve the compressed data from the file xxx, 
that is, put decompress(url "file:xxx") into field 1, produced a 
"string is not compressed data" error.

While I was at least able to compress field data, I was not able to 
compress a stack. As you may have seen, Chipp Walters says this is 
not possible to zip or unzip a stack. (I assume he also means that 
you cannot compress a stack.)  If you try, you get an error: "Source 
is not a container." I ran across something to this effect in the 
Docs yesterday, but I can't relocate it today.

But I am still puzzled as to how you decompress a stored file. I can 
compress a field but not decompress the file--something like an empty 
can of coke.

Jim

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