Re: break a variable length list at a specific element

A simple approach.


Am 29.09.24 um 21:08 schrieb Peter P.:
> Hi list,
>
> I am having lists with a variable number of items and I want to break them
> up two lists dependent on the presence of a specific item. I can't seem to
> understand how to do it though. Here's a quick example of what I mean:
>
> 1 2 3 4 5 6
> look for the number 4 and output two lists (at separate outlets) which
> are before and after that number 4, giving:
> 1 2 3
> and
> 5 6
> respectively
>
> I'd need the solution to work for lists of other lengths as well, i.e.
> 55 66 77 88 4 102 -33
> should be broken up into
> 55 66 77 88
> and 102 -33
> alike.
>
> I tried [route] and [list] objects but can't get them to do what I want.
>
> thanks!
> P
>
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#N canvas 547 67 208 243 10;
#N canvas 750 206 194 241 list-drip 0;
#X obj 37 37 inlet;
#X obj 37 152 list store;
#X obj 37 83 until;
#X obj 37 106 f;
#X obj 67 106 + 1;
#X msg 37 129 get \$1 1;
#X obj 78 84 0;
#X obj 37 175 outlet;
#X obj 94 175 outlet;
#X obj 37 60 t b b a;
#X connect 0 0 9 0;
#X connect 1 0 7 0;
#X connect 1 1 8 0;
#X connect 1 1 2 1;
#X connect 2 0 3 0;
#X connect 3 0 5 0;
#X connect 3 0 4 0;
#X connect 4 0 3 1;
#X connect 5 0 1 0;
#X connect 6 0 3 1;
#X connect 9 0 2 0;
#X connect 9 1 6 0;
#X connect 9 2 1 1;
#X restore 38 61 pd list-drip;
#X obj 38 153 list store;
#X msg 83 107 append \$1;
#X obj 38 176 print;
#X msg 136 38 4;
#X obj 38 107 t b b;
#X obj 107 84 t b b;
#X msg 38 38 1 2 3 4 5 6;
#X obj 38 84 sel;
#X connect 0 0 8 0;
#X connect 0 1 6 0;
#X connect 1 0 3 0;
#X connect 2 0 1 0;
#X connect 4 0 8 1;
#X connect 5 0 1 1;
#X connect 5 1 1 0;
#X connect 6 0 1 1;
#X connect 6 1 1 0;
#X connect 7 0 0 0;
#X connect 8 0 5 0;
#X connect 8 1 2 0;