[Pythonmac-SIG] appscript terminology caching

[has]

Bob wrote:

>>one small consideration to add: some apps update their terminology 
>>without a version change.. the means i have in mind is that some 
>>XTensions to QuarkXPress (4.x, at least) would dynamically extend 
>>the dictionary when the app launched.. the new terminology could 
>>only be obtained when the app was running, not from parsing the 
>>AETE in the resource fork.. i don't  how or whether this situation 
>>has changed with Mac OS X versions of XPress or other apps.. 
>>Frontier did a parse of the static AETE, and so i had to hand add 
>>entries to the glue table, but if the AETE API that appscript uses 
>>ensures that dynamic entries are returned to queries, then i guess 
>>this isn't an issue
>
>appscript shouldn't be reading anything directly from resources, so 
>that's not an issue.  However, if appscript gets ahold of the 
>QuarkXPress aete before it's loaded all of its extensions (which 
>might happen if appscript does the launching, I guess), then you 
>have an issue.

Appscript uses OSAGetAppTerminology, so supply the right aete(s) is 
the OS's responsibility.

One scenario where it would have a problem is when the user adds or 
removes scriptable application extensions while the app is running - 
this change wouldn't be picked up by appscript/ATS so it wouldn't 
know the cached terminology has gotten out of date.

has
-- 
http://freespace.virgin.net/hamish.sanderson/