26 lines
928 B
Racket
26 lines
928 B
Racket
#reader(lib "defreader.ss" "scribble")
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@require["common.ss"]
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@definterface[readable-snip<%> ()]{
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A @scheme[readable-snip<%>] object is treated specially by the port
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generated by @scheme[open-input-text-editor]. When a
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@scheme[readable-snip<%>] object is encountered for the input stream,
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its @method[readable-snip<%> read-special] method is called to
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generate the read result for the snip.
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@defmethod[(read-special [source any/c]
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[line (or/c nonnegative-exact-integer? false/c)]
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[column (or/c nonnegative-exact-integer? false/c)]
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[position (or/c nonnegative-exact-integer? false/c)])
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any/c]{
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The arguments are the same as the arguments to a procedure returned by
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a custom input port's @scheme[read]; see @secref["mz:customport"] for
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details. The result is also the same as the result from a
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@scheme[read]-produced procedure.
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}}
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