Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!jdevoto
From: jdevoto@Apple.COM (Jeanne A. E. DeVoto)
Newsgroups: comp.sys.mac.hypercard
Subject: Re: save stack as
Summary: "if there is a file..."
Message-ID: <48829@apple.Apple.COM>
Date: 5 Feb 91 04:52:13 GMT
References: <4646@mindlink.UUCP> <1991Feb4.054700.2881@fennel.cc.uwa.oz.au>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 31

In article <1991Feb4.054700.2881@fennel.cc.uwa.oz.au>
n_hays@fennel.cc.uwa.oz.au writes in reply to John Miller:
>> A problem with the "save stack" command is that it fails
>> if the a file already exists with the name given.  There
>> doesn't seem to be any magical keywords such as "with
>> overwrite" or "with extreme prejudice" to cause it to
>> overwrite a file that already exists
>
>Sounds like what you might need is the "File Exists" XFCN. As the name
>suggests it tests whether or not a file exists given a full pathname.
>You could then quizz the user in Hypertalk as to whether or not they 
>want to overwrite the file and use one of the various "delete file"
>XCMD's if they do, or just automatically add a "1" to the name otherwise.

Actually, you don't need FileExists any more, since 2.0 has an operator
"there is".

  if there is a file "Unknown Magnanimity:Stuff:Gigs:CI$" then beep
  if there is a card button "foo"
  if there is a card ID 22314
  if there is not a window "My Palette"
  if there is no menuItem "Paste" of menu "Edit"

you get the idea. This very handy operator doesn't seem very well known.
-- 
========= jeanne a. e. devoto ========================================
 jdevoto@apple.com     |  You may not distribute this article under a
 jdevoto@well.sf.ca.us |  compilation copyright without my permission.
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 Apple Computer and I are not authorized      |        CI$: 72411,165
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