File: filter

package info (click to toggle)
scheme9 2025.08.12-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 4,080 kB
  • sloc: lisp: 16,752; ansic: 11,869; sh: 806; makefile: 237; sed: 6
file content (7 lines) | stat: -rw-r--r-- 229 bytes parent folder | download | duplicates (5) 
1
2
3
4
5
6
7
 
S9 LIB  (filter procecure^1 list)  ==>  list

Extract elements from a list. PROCEDURE describes the property
of the elements to be extracted. It must be a procedure of one
argument.

(filter number? '(a 1 b 2 c 3))  ==>  (1 2 3)