<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.6000.16414" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV>May be the Debug button of Drscheme can be useful for you. It allows stepwise evaluation, breakpoints to be set and cleared and so on. This functionality is available without corrupting your source code with tracing command. All functions speek for themselves; you dont need a manual to use it. In my opinion it's a fine tool.</DIV> <DIV>Jos Koot</DIV> <DIV> </DIV> <DIV>(((((lambda(x)((((((((x x)x)x)x)x)x)x)x))<BR>    (lambda(x)(lambda(y)(x(x y)))))<BR>   (lambda(x)(x)x))<BR>  (lambda()(printf "Greetings, Jos~n"))))</DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=grettke@acm.org href="mailto:grettke@acm.org">Grant Rettke</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=plt-scheme@list.cs.brown.edu href="mailto:plt-scheme@list.cs.brown.edu">plt-scheme@list.cs.brown.edu</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, April 26, 2007 10:50 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> [plt-scheme] trace forms?</DIV> <DIV><BR></DIV>Hi,<BR><BR>In Chez Scheme, there are trace forms for let and lambda (trace-let,<BR>for example).<BR><BR>It is pretty convenient. Is there something like this in MzScheme?<BR><BR>How difficult is it to implement something like this?<BR>_________________________________________________<BR>  For list-related administrative tasks:<BR>  <A href="http://list.cs.brown.edu/mailman/listinfo/plt-scheme">http://list.cs.brown.edu/mailman/listinfo/plt-scheme</A><BR></BLOCKQUOTE></BODY></HTML>