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Re: Tid's 'n AS
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Re: Tid's 'n AS


  • Subject: Re: Tid's 'n AS
  • From: Axel Luttgens <email@hidden>
  • Date: Sat, 09 Nov 2002 18:34:06 +0100

Paul Berkowitz wrote:

>On 11/8/02 8:12 AM, "Axel Luttgens" <email@hidden> wrote:
>
>
>
>>[snip]
>>
>>That value is a list with one item: the empty string.
>>
>>
>Yes? And so what?
>
I just wanted to make clear that AppleScript's TIDs definitely have a
value when a script starts: they are not arbitrary nor random nor
undefined, as some statements emitted througout this thread tended to
let think.
Second, their initial value is not the "nul character", nor a single
character, as I could read in the thread too.
Third, their value is a list of strings, what sometimes may lead to
confusing behaviors within contexts where the string<->list coercion is
not applicable.

>
>bill's very important point was that you can _never_ assume that someone
> (including yourself in the same script/session) has not changed the default,
> or neglected to restore it. therefore any time you intend to coerce a list
> to string, you should declare what TIDs to use.
>
That's quite immediate as soon as you know that the TIDs are just a
property initialized by AppleScript with a given value.
The same can be said for every (writable) entity that has a global
scope, and is not specific to TIDs.

I had the feeling that the thread tended to give some mysterious status
to TIDs.
For example, one could imagine similar threads about how to change/not
to change the value of return or tab or pi within a script.
But wouldn't all those threads just tell the same thing: don't use a
global entity without knowing what you are doing?

>
>
>>Makes me remind of something.
>>Haven't tried yet if a multi-items list is now fully handled by
>>AppleScript for its TID.
>>
>>
>
>Very funny. Don't expect that to happen.
>
>
>
>
Hmm... sincerely, I was not trying to joke. I thought having read some
times ago (on this list) that this was still in the plans of the
AppleScript team.
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References: 
 >Re: Tid's 'n AS (From: Paul Berkowitz <email@hidden>)

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