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refactor

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This commit is contained in:
Justin Lin
2019-06-24 18:02:24 +08:00
parent 5f3bfb391d
commit 53a69477d6
1 changed files with 5 additions and 5 deletions
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10
src/util/sub_str.scad
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@@ -8,8 +8,8 @@
*
**/
function sub_str(t, begin, end, result = "") =
is_undef(end) ? sub_str(t, begin, len(t)) : (
begin == end ? result : sub_str(t, begin + 1, end, str(result, t[begin]))
);
function _sub_str(t, begin, end) =
begin == end ? "" : str(t[begin], sub_str(t, begin + 1, end));
function sub_str(t, begin, end) =
is_undef(end) ? _sub_str(t, begin, len(t)) : _sub_str(t, begin, end);