Re: Performance when Checking if File Exists
Re: Performance when Checking if File Exists
- Subject: Re: Performance when Checking if File Exists
- From: Arthur J Knapp <email@hidden>
- Date: Fri, 22 Feb 2002 13:17:40 -0500
>
Date: Fri, 22 Feb 2002 06:40:42 -0800 (PST)
>
From: Daniel Shockley <email@hidden>
>
Subject: Re: Performance when Checking if File Exists
>
I need to post a MAJOR correction. Richard Morton reminded me that
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what I thought I had worked on was completely his work, posted on
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the applescript-users list.
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> One thing I find a little, err, curious about this is that it
>
> bears more than a passing resemblance to the one I posted to AS
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> Users on 7 Jan of this year, on a thread you had contributed to -
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> "Re: How can i do?... ("exists" handler)".
I am suspicious of the whole affair: I say that we should convene a
meeting of the AppleScript-Users Ethics and Protocols Committee.
;-)
>
>> if inputPath is not equal to "" then try
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>> get alias inputPath as string
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>> return true
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>> end try
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>> return false
That "if" is a great addition. :)
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This second handler is just an example of how you can extract
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more information about the existence/non-existence of the path:
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>
on verifyPath( pathString )
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try
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alias pathString
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on error errmsg number errnum
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if errnum = -35 then
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return "disk does not exist"
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else if errnum = -120 then
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return "a folder does not exist"
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else if errnum = -43 then
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return "the file does not exist"
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else
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error errmsg number errnum
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end if
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end try
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return "exists"
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>
end verifyPath
{ Arthur J. Knapp, of <
http://www.STELLARViSIONs.com>
<
mailto:email@hidden>
try
<
http://homepage.mac.com/kshook/applescript.html>
on error number -128
end try
}
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