On Jun 29, 2006, at 9:28 AM, Adam Bell wrote:
At the heart of a more complex script failure, I discovered this:
{count 1234, count "1234"} --> {0, 4} in an editor, but
fails with "1234 doesn't understand the count message" if compiled.
Why does this work from the editors, but not when compiled?
Because (1) messages that AppleScript can't handle are delegated to
the application, and (2) Cocoa Scripting is being over-enthusiastic
about handling "count". (Or AppleScript is being over-enthusiastic
about delegating. It's a matter of perspective.) Script Editor,
being a scriptable Cocoa application, has the Cocoa Scripting
machinery, but an applet isn't and doesn't, hence the error.
(How do I know you meant "Script Editor"? Because you don't get the
same behavior in all editors. Smile 3 says "Expected a reference.")
By the way, "count" doesn't mean quite what you think it does.
"Count" is actually defined as "count <container> [each <class>]",
where the "each" parameter defaults to "item". AppleScript cleverly
[1] transmogrifies things like "count every x of y" into "count y
each x", but if you don't have something like that -- say you're
giving it a plain value, like a string -- you're effectively saying
"count <thing> each item". Strings do indeed have "items" --
they're synonymous with characters (not text items!) -- but numbers
do not.
--Chris Nebel
AppleScript Engineering
[1] For some definition of "cleverly". I wish they hadn't done
that, because it makes some constructions mean un-obvious things,
and I'm pretty sure it's not necessary.
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