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Presentation type definition question
Try this. This should give you the error message
"The object read, <foo>, was not a mumble form."
(DEFINE-PRESENTATION-TYPE MUMBLE-FORM ()
:HISTORY T
:PARSER ((STREAM &KEY ORIGINAL-TYPE)
(ACCEPT '((AND SYS:FORM ((SATISFIES HNAME:FORM-P))) :description "a mumble form")
:PROMPT NIL
:DEFAULT (DW:PRESENTATION-TYPE-DEFAULT 'MUMBLE-FORM)
:STREAM STREAM
:ORIGINAL-TYPE ORIGNINAL-TYPE))
:PRINTER ((OBJECT STREAM)
(HNAME::PRINT-FORM OBJECT STREAM 0)))
Laura D. Bagnall 617-253-2621
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