diff options
| author | Aryadev Chavali <aryadev@aryadevchavali.com> | 2025-02-10 07:25:43 +0000 |
|---|---|---|
| committer | Aryadev Chavali <aryadev@aryadevchavali.com> | 2025-02-11 00:40:19 +0000 |
| commit | 279437cb81478bc5807674d15120fb38f7ebc3c3 (patch) | |
| tree | 90a1299379b98428c18a46a04f2d088b18847179 | |
| parent | 2d49ed25acc03550036b124e2ffade0edf812150 (diff) | |
| download | cantedraw-279437cb81478bc5807674d15120fb38f7ebc3c3.tar.gz cantedraw-279437cb81478bc5807674d15120fb38f7ebc3c3.tar.bz2 cantedraw-279437cb81478bc5807674d15120fb38f7ebc3c3.zip | |
Implement `split` function.
Given a list and index into that list, return a cons where the car is
all elements up to that index (exclusive) and the cdr is the rest of
the list.
| -rw-r--r-- | lib.functions.lisp | 4 | ||||
| -rw-r--r-- | packages.lisp | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/lib.functions.lisp b/lib.functions.lisp index 30c1e64..8eb2304 100644 --- a/lib.functions.lisp +++ b/lib.functions.lisp @@ -32,3 +32,7 @@ each member is STEP distance apart." (fn take (n lst) (-> (fixnum list) list) (subseq lst 0 n)) + +(fn split (n lst) (-> (fixnum list) list) + (cons (take n lst) + (subseq lst n))) diff --git a/packages.lisp b/packages.lisp index 58c848e..72d4dc5 100644 --- a/packages.lisp +++ b/packages.lisp @@ -29,7 +29,7 @@ (:use :cl :lib.macros) (:export :parse-integer* - :range :take)) + :range :take :split)) (defpackage main (:use :cl :lib.macros) |