52 lines
899 B
Text
52 lines
899 B
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{Pwhile}
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While a condition holds, repeatedly embed stream@section{categories}
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Streams-Patterns-Events>Patterns>Language Control
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@section{description}
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Repeatedly strong::embed:: a link::Classes/Stream:: while the result of
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@racketblock[func:: is ]
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@racketblock[true::.
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]
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@section{classmethods}
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@section{method}
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new
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@section{argument}
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func
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Stream function. In an event stream receives the current link::Classes/Event:: as argument.
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@section{argument}
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pattern
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A link::Classes/Pattern::.
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@section{examples}
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@racketblock[
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(
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z = true;
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a = Pwhile({ z }, Pseq(#[1, 2, 3]));
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x = a.asStream;
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);
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7.do({ x.next.postln; }); // while z == true, the values are embedded
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z = false; // set z to false
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x.next; // the rest of the stream is still embedded
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x.next;
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x.next; // but then it is not continued.
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x.next;
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x.next;
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x.next;
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::
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]
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