51 lines
1.1 KiB
Racket
51 lines
1.1 KiB
Racket
#lang scribble/doc
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@(require "common.ss")
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@defclass/title[editor-stream-out-base% object% ()]{
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An @scheme[editor-stream-out-base%] object is used by an
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@scheme[editor-stream-out%] object to perform low-level writing of
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data.
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The @scheme[editor-stream-out-base%] class is never instantiated
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directly, but the derived class
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@scheme[editor-stream-out-bytes-base%] can be instantiated. New
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derived classes must override all of the methods described in this
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section.
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@defmethod[(bad?)
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boolean?]{
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Returns @scheme[#t] if there has been an error writing to the stream,
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@scheme[#f] otherwise.
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}
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@defmethod[(seek [pos exact-nonnegative-integer?])
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void?]{
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Moves to the specified absolute position in the stream.
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}
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@defmethod[(tell)
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exact-nonnegative-integer?]{
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Returns the current stream position.
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}
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@defmethod[(write [data (listof char?)])
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void?]{
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Writes data (encoded as Latin-1 characters) to the stream. This method
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is implemented by default via @method[editor-stream-out-base%
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write-bytes].}
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@defmethod[(write-bytes [bstr bytes?]) void?]{
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Writes data to the stream.}}
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