On 03/11/2010 04:41, J. Landman Gay wrote:
Right. You can't have an empty last item, and if you try, the last
delimiter is removed. There's a comment about it in the dictionary
under "item".
You can have an empty last item - see the end of the email.
But even without that special case, you can have a trailing delimiter -
if you do this in the message box of LC 4.5
put "a,b,c" into t ; put empty into item -1 of t; put t
then you get
a,b,
i.e. the trailing comma remains. If instead you say "delete item -1 of
temp" then the trailing delimiter disappears.
I guess it just *is* that way, and always has been. The problem is that
the docs are completely wrong when they say
delete /chunk/ of /container /
is the same as
put empty into /chunk/ of /container/
But it can be tricky to follow the logic. Here's a quiz .... without
trying it :-) what do you get from
put "a,b,c" into t
put empty into the last item of t
put empty into the last item of t
put empty into the last item of t
put t
answer follows below ....
You get "a,,"
the first "put empty ..." removes "c"
The second one removes "b"
The third one does nothing - because the last item is empty.
-- Alex.
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