Re: Searching dictionaries
Re: Searching dictionaries
- Subject: Re: Searching dictionaries
- From: Bill Cheeseman <email@hidden>
- Date: Sat, 11 Oct 2003 06:43:54 -0400
on 03-10-10 11:37 PM, April Gendill at email@hidden wrote:
>
I have a data structure. The root is a dictionary which contains
>
string items and other dictionaries (possibly nested). I tried
>
enumerating the dictionary but I cannot remove an item or other wise
>
use it because the enumerator only provides either a string or
>
dictionary object.
Once you solve the problem of enumerating the dictionary, you will have to
face the documented fact that you should never remove objects from a
collection while enumerating it (using NSEnumerator). You cannot work around
this issue by using a reverse enumerator, because the issue is not a matter
of keeping the indexes straight.
Often the easiest way to do this is to use the enumerator to construct a
separate, temporary collection of the items to be removed (or their
indexes), then remove the identical items from the original collection.
--
Bill Cheeseman - email@hidden
Quechee Software, Quechee, Vermont, USA
http://www.quecheesoftware.com
The AppleScript Sourcebook -
http://www.AppleScriptSourcebook.com
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