On Aug 20, 2006, at 4:21 AM, Mark Smith wrote:
The number of items in "a,b,c,d,e,f,g" is 7
The number of items in "a,b,c,d,e,f," is 6
The number of items in "a,b,c,d,e,," is 6
The number of items in "a,,,,,," is 6
It is the same with cr's (lines)
The trailing comma is not counted as delimiting an empty item.
This is true. And it's also worth noting that this might surprise
you when using negative indices.
So as well as Jims counting examples,
get item -1 of "a,b," -- returns "b"
whereas when getting and setting items by positive index
get item 3 of "a,b," -- returns empty (as you'd expect)
put "a,b," into tLine
put "d" into item 4 of tLine
-- leaves tLine as: "a,b,,d"
If you think of the delimiter as being after the data, then this
makes sense. The 'tween delimiter notion fails.
The "delimiter after" also allows both representation of a single
empty item distinct from an empty list of items.
The comma operator doesn't support this notion very well, put a loop
with 'put it & comma after stuff' does.
On the other hand I think the following is awkward and others might
feel it make sense:
put item 3 of (1,2 &lf& 3,4)
==>4
It seems the line end should be an item delimiter along with whatever
the current delimiter character is.
Dar
_______________________________________________
use-revolution mailing list
use-revolution@lists.runrev.com
Please visit this url to subscribe, unsubscribe and manage your subscription
preferences:
http://lists.runrev.com/mailman/listinfo/use-revolution
