Zhi Peng wrote:
> I often get type error when I pass some parameters inside a function while I
> am using appscript MacPython. I saw some documents mentioning sth like
> AEType('sf '). What does it mean? Anyone knew?
The AEType class is defined in the aem package that underpins appscript, and
represents (not surprisingly) an AE type as used by the Apple Event Manager.
Appscript normally converts AEType instances to attributes of its k namespace,
e.g. aem.AEType('long') -> k.Integer, but every so often it'll encounter one
whose code it doesn't recognise (i.e. not defined in the application's
dictionary or in appscript's built-in tables) so it'll just pass it on as-is.
(In AppleScript, the equivalent raw representation looks like <<class CODE>>.)
See the 'Classes and Enumerated Types' chapter of appscript's manual and the
aem documentation for more info.
The 'sf ' code you mention is a pseudo-type defined in the AppleScript
component that's only used [AFAIK] in aete resources, where it translates as
'alias or string'. It's a kludge used to get around the aete format's inability
to specify multiple types for a single property/argument. Appscript doesn't
bother mapping this to its k namespace (not unless an application defines it
itself), but the help system in the latest source release does now display it
as 'Alias | String' instead of "AEType('sf ')".
As for the type errors you're getting, you'd really need to provide some
example code and tracebacks for a definite answer as it might be related or
could be something completely different.
has
--
http://freespace.virgin.net/hamish.sanderson/
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