On Fri, 12 May 2006 00:40:25 +0200, Alexander Neundorf
<[EMAIL PROTECTED]> wrote:
Hi,
Von: Gaetan Lehmann <[EMAIL PROTECTED]>
Hi,
We have implemented for WrapITK some list functions in pure cmake. It
would be
nice to be able to replace them by native functions. Some of them are
already
there (SORT for example), but some are missing:
- LIST(UNIQUE <list>) remove all the duplicate items in the list.
- LIST(INTERSECT <list> <element> [<element> ...]) compute the
intersection
of the list and the list of element given in parameter. I think the
output
variable should not contain any duplicate item, but it should be
discussed.
- LIST(HAS_ITEM <list> <item> <output variable>) set output variable
to
ON if
the item is in the list, and to OFF otherwise.
Also, I'm surprised to see that the LIST commands always modify the
list,
and
does not produce a new one. It is definitively not always the desired
behavior. It is not a important issue - some macro can easily be
created to workaround that.
You could just use SET() to create a copy beore the LIST() command.
Finally, I think REMOVE and REMOVE_ITEM should be swapped - for me, the
item
is what is removed from the list, not its index. Currently, we have:
LIST(REMOVE <variable> <value> [<value> ...])
LIST(REMOVE_ITEM <variable> <index> [<index> ...])
Maybe REMOVE_VALUE and REMOVE_INDEX ?
yes :-)
And I forgot a missing command:
LIST(REMOVE_VALUES <list> <element> [<element> ...]) to remove all the
element in the list, not only the first one.
SET(list 1 1 2 2 3 4)
LIST(REMOVE_VALUE list 1) # list is 1 2 2 3 4
LSIT(REMOVE_VALUES list 2) # list is 1 3 4
Gaetan
--
Gaëtan Lehmann
Biologie du Développement et de la Reproduction
INRA de Jouy-en-Josas (France)
tel: +33 1 34 65 29 66 fax: 01 34 65 29 09
http://voxel.jouy.inra.fr
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