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refactor: use list comprehension

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This commit is contained in:
Justin Lin 2022-04-18 16:32:06 +08:00
parent 3dc5a9fea2
commit 493645bc7e
2 changed files with 6 additions and 9 deletions
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6
src/util/_impl/_zip_impl.scad
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@ -1,6 +0,0 @@
_identity = function(elems) elems;
function _zipAll_sub(lts, list_to, elem_to, combine, i = 0) =
i > elem_to ? [] : [combine([for(j = [0:list_to]) lts[j][i]]), each _zipAll_sub(lts, list_to, elem_to, combine, i + 1)];
function _zipAll(lts, combine = _identity) = _zipAll_sub(lts, len(lts) - 1, len(lts[0]) - 1, combine);

9
src/util/zip.scad
View File

@ -8,6 +8,9 @@
*
**/
use <_impl/_zip_impl.scad>;
function zip(lts, combine) = is_function(combine) ? _zipAll(lts, combine) : _zipAll(lts);
function zip(lts, combine = function(elems) elems) =
let(end_lts = len(lts) - 1)
[
for(i = [0:len(lts[0]) - 1])
combine([for(j = [0:end_lts]) lts[j][i]])
];