racket/collects/scribblings/gui/editor-stream-out-base-class.scrbl
Eli Barzilay ac26fe7554 A ton of @scheme*' -> @racket*' and related updates.
Also, updates some of the mzlib files to point at `racket/*' libraries
rather than to `scheme/*' ones.
2011-06-25 04:08:47 -04:00

51 lines
1.1 KiB
Racket

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