line(0,1) : error AC0618: assigment is not permitted outside of a :Class or :Namespace " output←regexes(op Run args)input;from;to;options;lines;Expand;repeat;s;r;last;fns;q;hasrepeat;postproc;combine;Quote;Nest;a;n"
^
line(1,1) : error AC0618: assigment is not permitted outside of a :Class or :Namespace " output←⍬⊤⍬ ⍝ default result is empty matrix"
^