34 lines
1.4 KiB
HTML
34 lines
1.4 KiB
HTML
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<HTML><HEAD><TITLE>STk procedure - repl-display-prompt manual page</TITLE></HEAD>
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<BR>
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<BODY bgcolor = #c3ffc3>
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<H2><IMG ALIGN=BOTTOM SRC="./Img/ManPageGreen.gif"> repl-display-prompt, repl-display-result</H2>
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<I>Display a prompt/result in
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interactive mode</I><P><IMG ALIGN=TOP SRC="./Img/line-red.gif">
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<H3><A NAME="M2">SYNOPSIS</A></H3>
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(<B>repl-display-prompt </B><I>module</I>)<BR>
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(<B>repl-display-result </B><I>value</I>)<BR>
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<H3><A NAME="M3">DESCRIPTION</A></H3>
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<B>Repl-display-prompt</B> is called by the interactive toplevel loop
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before reading a <I>sexpr</I>. This procedure is called with one parameter:
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the selected module in the toplevel loop.
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<P>
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A simple form of this procedure could be:
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<PRE>(define (repl-display-prompt module)
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(let ((p (current-error-port)))
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(format p "~A> " (module-name module))
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(flush p)))</PRE>
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<P>
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<B>Repl-display-result</B> is called by the interactive toplevel loop
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after the evaluation of a <I>sexpr</I>. This procedure is called with the
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result of this evaluation as parameter.
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<P>
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A simple form, mimicking the MIT Scheme way of presenting results, could be:
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<PRE>(define (repl-display-result value)
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(format #t "\\n;Value: ~S\\n\\n" value))</PRE>
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<P><IMG ALIGN=TOP SRC="./Img/line-red.gif"><P>
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<A HREF=./STk-hlp.html><IMG ALIGN=BOTTOM SRC="./Img/RefBookGreen.gif"> Back to the <B>STk</B> main page</A>
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</BODY></HTML>
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