The Case Of The Unreadable File

[Ray G. Miller]

From: Yennie at aol.com
>> 
> What kind of value do you get for "increment" in your script by the time you
> get an error in "the result"? 

The "increment" value is "8256" on a file that the Finder lists as
184,358 bytes.
The time it takes is about 1800 ticks. On a valid file its about 20-30 ticks.
It looks like MC is a "I'm-Not-Gonna-Give-Up" loop when it encounters a
read error. Seems like it should jump out as soon as it encounters a
read error....

A couple of times MC DID return a "Can't read" error... but not consistently.

> Is it larger than the supposed file size returned by the detailed files()?

Don't know, but I'll check the results of detailed Files() vs. the finder.


> Here's one idea if it is:
> 
> function isValid theFile, fileSize
>      open file theFile for read
>      read from file theFile for 1 at (fileSize+1)
>      put (the result = "eof") into vBool
>      close file theFile
>      return vBool
> end isValid
> 

Looks good. I'll try it.

> I tested a variation here, and it works for valid files. Dunno if it helps
> any with your invalid ones- that might be hardwired underneath into whatever
> system file routine is returning the error.
> 

Thanks your help.

Ray
-- 


Ray G. Miller
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