https://github.com/jrincayc/ucblogo-code
Tip revision: 60b5e2779508ed4effa3994d71251b9b5f67076b authored by Barak A. Pearlmutter on 13 January 2022, 14:08:22 UTC
log changes
log changes
Tip revision: 60b5e27
foreach
;;; -*- logo -*-
.macro foreach [:foreach.inputs] 2
catch "foreach.catchtag ~
[op foreach.done runresult ~
[foreach1 bl :foreach.inputs last :foreach.inputs 1]]
op []
end
to foreach1 :template.lists :foreach.template :template.number
if emptyp first :template.lists [throw "foreach.catchtag]
apply :foreach.template firsts :template.lists
.maybeoutput foreach1 bfs :template.lists :foreach.template :template.number+1
end
to foreach.done :foreach.result
if emptyp :foreach.result [op [stop]]
op (list "output "first (list first :foreach.result))
end
to ?rest [:which 1]
output bf item :which :template.lists
end
bury [foreach foreach1 foreach.done ?rest]