diff options
Diffstat (limited to 'doc/lispref/lists.texi')
| -rw-r--r-- | doc/lispref/lists.texi | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/lispref/lists.texi b/doc/lispref/lists.texi index 69f93009520..31cc3190854 100644 --- a/doc/lispref/lists.texi +++ b/doc/lispref/lists.texi @@ -667,6 +667,18 @@ non-@code{nil}, it copies vectors too (and operates recursively on their elements). @end defun +@defun flatten-tree tree +Take @var{tree} and "flatten" it. +This always returns a list containing all the terminal nodes, or +leaves, of @var{tree}. Dotted pairs are flattened as well, and nil +elements are removed. +@end defun + +@example +(flatten-tree '(1 (2 . 3) nil (4 5 (6)) 7)) + @result{}(1 2 3 4 5 6 7) +@end example + @defun number-sequence from &optional to separation This returns a list of numbers starting with @var{from} and incrementing by @var{separation}, and ending at or just before |