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Re: the Holy Grail of AppleScript lists
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Re: the Holy Grail of AppleScript lists


  • Subject: Re: the Holy Grail of AppleScript lists
  • From: Christopher Nebel <email@hidden>
  • Date: Wed, 19 Mar 2003 13:16:14 -0800

On Wednesday, March 19, 2003, at 10:09 AM, Paul Skinner wrote:

Here's where I got a shock. I wanted to test the speed so I upped the size of the list...

set delim to return
set l to {"3", "a", "C", "c", "B", 2, "A", 1}
repeat 10 times
set l to l & l
end repeat
set AppleScript's text item delimiters to delim
set t to text items of (do shell script ("echo '" & l as text) & "' | tr '" & delim & "' '\n' | sort -f")
-->list of 8291 items.

!!! WHAT!? how many? how the... That can't... DAMN! wow.

Why this is possible I can't say. I'm hoping Nigel or Chris will comment on the underlying reason.

Here's a hint:

set s to do shell script ("echo '" & l as text) & "' | tr '" & delim & "' '\n' | sort -f")
text items of s --> (an 8192 item list)
class of s --> Unicode text

Here's another hint:

text items of (s as string) --> Error: Stack overflow.

"Unicode text" doesn't suffer from the stack-imposed limit that "string" does. In another release, neither will "string".


--Chris Nebel
Apple Development Tools
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