HelpSource/Classes/Pwhile.schelp

   1 class:: Pwhile
   2 summary:: While a condition holds, repeatedly embed stream
   3 categories:: Streams-Patterns-Events>Patterns>Language Control
   4
   5 description::
   6 Repeatedly strong::embed:: a link::Classes/Stream:: while the result of code::func:: is code::true::.
   7
   8
   9 classmethods::
  10
  11 method:: new
  12 argument:: func
  13 Stream function. In an event stream receives the current link::Classes/Event:: as argument.
  14 argument:: pattern
  15 A link::Classes/Pattern::.
  16
  17
  18 examples::
  19 code::
  20 (
  21 z = true;
  22 a = Pwhile({ z }, Pseq(#[1, 2, 3]));
  23 x = a.asStream;
  24 );
  25
  26 7.do({ x.next.postln; }); // while z == true, the values are embedded
  27 z = false; // set z to false
  28 x.next; // the rest of the stream is still embedded
  29 x.next;
  30 x.next; // but then it is not continued.
  31 x.next;
  32 x.next;
  33 x.next;
  34 ::