langs a-z

2013-04-10 22:43:41 -07:00 · 2013-04-10 22:43:41 -07:00 · d066446780
commit d066446780
parent db842d013d
11389 changed files with 98361 additions and 1020 deletions
--- a/Task/Loop-over-multiple-arrays-simultaneously/PostScript/loop-over-multiple-arrays-simultaneously.ps
+++ b/Task/Loop-over-multiple-arrays-simultaneously/PostScript/loop-over-multiple-arrays-simultaneously.ps
@ -0,0 +1,10 @@
+% transpose is defined in initlib like this.
+/transpose {
+    [ exch {
+        { {empty? exch pop} map all?} {pop exit} ift
+        [ exch {} {uncons {exch cons} dip exch} fold counttomark 1 roll] uncons
+    } loop ] {reverse} map
+}.
+
+% using it.
+[[/a /b /c] [/A /B /C] [1 2 3]] transpose