Re: When Is A String Not A String
Re: When Is A String Not A String
- Subject: Re: When Is A String Not A String
- From: Luther Fuller <email@hidden>
- Date: Mon, 11 Aug 2008 13:10:17 -0500
On Aug 11, 2008, at 12:46 PM, email@hidden wrote:
At 11:29 AM -0500 8/11/08, Luther Fuller wrote:
I have a variable, x, which is either a string or an alias to a
folder. When x encounters this code ...
if (class of x) is string then
A
else -- x is an alias
B
end if
... it works perfectly in Leopard. But, I've just discovered, not
in Tiger 10.4.11.
In Tiger, if x = "a text message" (which is certainly a string),
then block A is skipped and block B runs with an error message
containing "a text message". (Which is certainly impossible.)
Who knows what's happening here?
Me!
To be safe, use the trilogy:
if (class of x) is in {Unicode text, text, string} then
Your string is probably Unicode text, while for Tiger "text" means
good old 8-bit MacRoman.
My original code said something like ...
, x:"a text message",
In Leopard, this returns class 'text', but in Tiger it returns class
'Unicode text'.
(That's what my diagnostic message said!)
I've just changed my code to ...
, x:"a text message" as text,
In Leopard, this still returns class 'text', but in Tiger it now
returns class 'string'.
My code now works properly in both Leopard and Tiger.
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