61 lines
2.2 KiB
ReStructuredText
61 lines
2.2 KiB
ReStructuredText
|
list
|
||
|
|
----
|
||
|
|
|
||
|
|
List operations.
|
||
|
|
|
||
|
|
::
|
||
|
|
|
||
|
|
list(LENGTH <list> <output variable>)
|
||
|
|
list(GET <list> <element index> [<element index> ...]
|
||
|
|
<output variable>)
|
||
|
|
list(APPEND <list> [<element> ...])
|
||
|
|
list(FIND <list> <value> <output variable>)
|
||
|
|
list(INSERT <list> <element_index> <element> [<element> ...])
|
||
|
|
list(REMOVE_ITEM <list> <value> [<value> ...])
|
||
|
|
list(REMOVE_AT <list> <index> [<index> ...])
|
||
|
|
list(REMOVE_DUPLICATES <list>)
|
||
|
|
list(REVERSE <list>)
|
||
|
|
list(SORT <list>)
|
||
|
|
|
||
|
|
LENGTH will return a given list's length.
|
||
|
|
|
||
|
|
GET will return list of elements specified by indices from the list.
|
||
|
|
|
||
|
|
APPEND will append elements to the list.
|
||
|
|
|
||
|
|
FIND will return the index of the element specified in the list or -1
|
||
|
|
if it wasn't found.
|
||
|
|
|
||
|
|
INSERT will insert elements to the list to the specified location.
|
||
|
|
|
||
|
|
REMOVE_AT and REMOVE_ITEM will remove items from the list. The
|
||
|
|
difference is that REMOVE_ITEM will remove the given items, while
|
||
|
|
REMOVE_AT will remove the items at the given indices.
|
||
|
|
|
||
|
|
REMOVE_DUPLICATES will remove duplicated items in the list.
|
||
|
|
|
||
|
|
REVERSE reverses the contents of the list in-place.
|
||
|
|
|
||
|
|
SORT sorts the list in-place alphabetically.
|
||
|
|
|
||
|
|
The list subcommands APPEND, INSERT, REMOVE_AT, REMOVE_ITEM,
|
||
|
|
REMOVE_DUPLICATES, REVERSE and SORT may create new values for the list
|
||
|
|
within the current CMake variable scope. Similar to the SET command,
|
||
|
|
the LIST command creates new variable values in the current scope,
|
||
|
|
even if the list itself is actually defined in a parent scope. To
|
||
|
|
propagate the results of these operations upwards, use SET with
|
||
|
|
PARENT_SCOPE, SET with CACHE INTERNAL, or some other means of value
|
||
|
|
propagation.
|
||
|
|
|
||
|
|
NOTES: A list in cmake is a ; separated group of strings. To create a
|
||
|
|
list the set command can be used. For example, set(var a b c d e)
|
||
|
|
creates a list with a;b;c;d;e, and set(var "a b c d e") creates a
|
||
|
|
string or a list with one item in it.
|
||
|
|
|
||
|
|
When specifying index values, if <element index> is 0 or greater, it
|
||
|
|
is indexed from the beginning of the list, with 0 representing the
|
||
|
|
first list element. If <element index> is -1 or lesser, it is indexed
|
||
|
|
from the end of the list, with -1 representing the last list element.
|
||
|
|
Be careful when counting with negative indices: they do not start from
|
||
|
|
0. -0 is equivalent to 0, the first list element.
|