https://github.com/jrincayc/ucblogo-code
Tip revision: e21e43605dee2b49f4701fde229cc65c445439b9 authored by Joshua Cogliati on 27 December 2019, 15:07:13 UTC
Merge pull request #19 from jrincayc/pre_release_6_1
Merge pull request #19 from jrincayc/pre_release_6_1
Tip revision: e21e436
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]