<!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 6.00.6000.16674" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space" bgColor=#ffffff> <DIV><FONT face="Courier New" size=2>You mean</FONT></DIV> <DIV><FONT face="Courier New" size=2></FONT> </DIV> <DIV><FONT face="Courier New" size=2>(require scheme/base)<BR>(define mm '(module mm mzscheme (provide z) (define z 3)))<BR>(define ns (make-base-namespace))<BR>(eval mm ns)<BR>(eval '(require 'mm) ns)<BR>(eval 'z ns) ;--> 3</FONT></DIV> <DIV><FONT face="Courier New" size=2></FONT> </DIV> <DIV><FONT face="Courier New" size=2>???</FONT></DIV> <DIV><FONT face="Courier New" size=2>Jos</FONT></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=gregory.woodhouse@sbcglobal.net href="mailto:gregory.woodhouse@sbcglobal.net">Gregory Woodhouse</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, July 17, 2008 10:09 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> [plt-scheme] Can I create module on the fly?</DIV> <DIV><BR></DIV> <DIV style="MARGIN: 0px"><FONT style="FONT: 12px Helvetica" face=Helvetica size=3>(Actually, I'd like the module to be something I can read from a file port at runtime)</FONT></DIV> <DIV style="MIN-HEIGHT: 14px; MARGIN: 0px; FONT: 12px Helvetica"><BR></DIV> <DIV style="MARGIN: 0px"><FONT style="FONT: 12px Helvetica" face=Helvetica size=3>My initial attempt was</FONT></DIV> <DIV style="MIN-HEIGHT: 14px; MARGIN: 0px; FONT: 12px Helvetica"><BR></DIV> <DIV style="MARGIN: 0px"><FONT style="FONT: 12px Helvetica" face=Helvetica size=3>> (define md (quote</FONT></DIV> <DIV style="MARGIN: 0px"><FONT style="FONT: 12px Helvetica" face=Helvetica size=3>              (module m scheme/base</FONT></DIV> <DIV style="MARGIN: 0px"><FONT style="FONT: 12px Helvetica" face=Helvetica size=3>                (define x 11))))</FONT></DIV> <DIV style="MARGIN: 0px"><FONT style="FONT: 12px Helvetica" face=Helvetica size=3>> (define ns (module->namespace ....</FONT></DIV> <DIV style="MIN-HEIGHT: 14px; MARGIN: 0px; FONT: 12px Helvetica"><BR></DIV> <DIV style="MARGIN: 0px"><FONT style="FONT: 12px Helvetica" face=Helvetica size=3>But here I'm stuck. By itself, md or 'md isn't a legitimate module path, but I'd like to create a namespace for eval, so I can evaluate expressions in the module environment.</FONT></DIV> <DIV><BR></DIV><BR> <DIV><SPAN class=Apple-style-span style="WORD-SPACING: 0px; FONT: 12px Helvetica; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); TEXT-INDENT: 0px; WHITE-SPACE: normal; LETTER-SPACING: normal; BORDER-COLLAPSE: separate; orphans: 2; widows: 2; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0"><SPAN class=Apple-style-span style="WORD-SPACING: 0px; FONT: 12px Helvetica; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); TEXT-INDENT: 0px; WHITE-SPACE: normal; LETTER-SPACING: normal; BORDER-COLLAPSE: separate; orphans: 2; widows: 2; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"> <DIV><BR class=Apple-interchange-newline><BR class=khtml-block-placeholder></DIV> <DIV>"The art of asking the right questions in mathematics is more important than the art of solving them."</DIV> <DIV>--Georg Cantor</DIV> <DIV><BR></DIV> <DIV> <DIV><A href="http://www.gwoodhouse.com">http://www.gwoodhouse.com</A></DIV> <DIV><A href="http://GregWoodhouse.ImageKind.com">http://GregWoodhouse.ImageKind.com</A></DIV> <DIV><BR></DIV></DIV> <DIV><BR class=khtml-block-placeholder></DIV><BR class=Apple-interchange-newline></SPAN><BR class=Apple-interchange-newline></SPAN></DIV><BR> <P> <HR> <P></P>_________________________________________________<BR>  For list-related administrative tasks:<BR>  http://list.cs.brown.edu/mailman/listinfo/plt-scheme<BR></BLOCKQUOTE></BODY></HTML>