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Added recursive= options to first_defined(), any_defined() and all_defined()

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Revar Desmera 2019-07-10 21:52:47 -07:00
parent edcca67968
commit 58857b439a
1 changed files with 19 additions and 3 deletions
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22
common.scad
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@ -33,7 +33,17 @@ function default(v,dflt=undef) = is_undef(v)? dflt : v;
// Description:
// Returns the first item in the list that is not `undef`.
// If all items are `undef`, or list is empty, returns `undef`.
function first_defined(v,_i=0) = _i<len(v) && is_undef(v[_i])? first_defined(v,_i+1) : v[_i];
// Arguments:
// v = The list whose items are being checked.
// recursive = If true, sublists are checked recursively for defined values. The first sublist that has a defined item is returned.
function first_defined(v,recursive=false,_i=0) =
_i<len(v) && (
is_undef(v[_i]) || (
recursive &&
is_list(v[_i]) &&
is_undef(first_defined(v[_i],recursive=recursive))
)
)? first_defined(v,recursive=recursive,_i=_i+1) : v[_i];
// Function: num_defined()
@ -44,13 +54,19 @@ function num_defined(v,_i=0,_cnt=0) = _i>=len(v)? _cnt : num_defined(v,_i+1,_cnt
// Function: any_defined()
// Description:
// Returns true if any item in the given array is not `undef`.
function any_defined(v) = first_defined(v) != undef;
// Arguments:
// v = The list whose items are being checked.
// recursive = If true, any sublists are evaluated recursively.
function any_defined(v,recursive=false) = first_defined(v,recursive=recursive) != undef;
// Function: all_defined()
// Description:
// Returns true if all items in the given array are not `undef`.
function all_defined(v,_i=0) = _i<len(v) && !is_undef(v[_i])? all_defined(v,_i+1) : (_i >= len(v));
// Arguments:
// v = The list whose items are being checked.
// recursive = If true, any sublists are evaluated recursively.
function all_defined(v,recursive=false) = max([for (x=v) is_undef(x)||(recursive&&is_list(x)&&!all_defined(x))? 1 : 0])==0;
// Section: Argument Helpers