<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=us-ascii" http-equiv=Content-Type> <META name=GENERATOR content="MSHTML 9.00.8112.16457"></HEAD> <BODY> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013>In some cases I want a namespace that includes more than racket/base only, preferably a namespace that includes all of module racket. For example, a base-namespace does not include procedure force (as clearly documented) I see two methods to require all of racket into a base-namespace (I imagine there are more methods)</SPAN></FONT></DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013></SPAN></FONT> </DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013>Method 1:</SPAN></FONT></DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013></SPAN></FONT> </DIV> <DIV><FONT size=2 face="Courier New">#lang racket</FONT></DIV> <DIV><FONT size=2 face="Courier New"></FONT> </DIV> <DIV><FONT size=2 face="Courier New">(define namespace-1<BR> (parameterize ((current-namespace (make-base-namespace)))<BR>  (namespace-require 'racket)<BR>  (current-namespace)))</FONT></DIV> <DIV><FONT size=2 face="Courier New"></FONT> </DIV> <DIV><FONT size=2 face="Courier New">(eval 'force namespace-1) ; -> #<procedure:force></FONT></DIV> <DIV><FONT size=2 face="Courier New"></FONT> </DIV> <DIV><SPAN class=706572521-03012013><FONT size=2 face="Courier New">Method 2:</FONT></SPAN></DIV> <DIV><SPAN class=706572521-03012013><FONT size=2 face="Courier New"></FONT></SPAN> </DIV> <DIV><SPAN class=706572521-03012013><FONT size=2 face="Courier New">#lang racket</FONT></SPAN></DIV> <DIV><FONT size=2 face="Courier New"></FONT> </DIV> <DIV><FONT size=2 face="Courier New">(define namespace-2<BR> (let ((namespace (make-base-namespace)))<BR>  (eval '(require racket) namespace)<BR>  namespace))</FONT></DIV> <DIV><FONT size=2 face="Courier New"></FONT> </DIV> <DIV><FONT size=2 face="Courier New">(eval 'force namespace-2) ; -> #<procedure:force></FONT></DIV> <DIV><FONT size=2 face="Courier New"></FONT> </DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013>I have also seen that nowadays even </SPAN></FONT><FONT size=2 face="Courier New"><SPAN class=706572521-03012013>the following is accepted:</SPAN></FONT></DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013></SPAN></FONT> </DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013>(eval '(define list 1) (make-base-namespace))</SPAN></FONT></DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013></SPAN></FONT> </DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013>IIRC this was not accepted in earlier versions.</SPAN></FONT></DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013>The above is in DrRacket's definitions window version 5.3.1.10--2012-12-21(8d5a069/a) [3m]. </SPAN></FONT></DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013></SPAN></FONT> </DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013>Questions:</SPAN></FONT></DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013>What is preferable? (e.g. method 1 does not require procedure eval)</SPAN></FONT></DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013>Do the methods work under all circumstances?</SPAN></FONT></DIV> <DIV><FONT size=2 face="Courier New"><SPAN class=706572521-03012013>Possibly there are differences and pitfalls I have not noticed? </SPAN></FONT></DIV> <DIV><FONT size=2 face="Courier New"></FONT> </DIV> <DIV><SPAN class=706572521-03012013><FONT size=2 face="Courier New">My questions stems from the fact that even after many years, I am still playing with my own interpreters (meta-recursive and correctly treating tail positions). It is handy to have a namespace that provides all primitives I need/want. Taking the whole as a namespace is fast and easy, especially when testing meta-recursivity. Mods shaddow the namespace or I simply use namespace-set-variable-value!</FONT></SPAN></DIV> <DIV><SPAN class=706572521-03012013><FONT size=2 face="Courier New"></FONT></SPAN> </DIV> <DIV><SPAN class=706572521-03012013><FONT size=2 face="Courier New">Thanks, Jos</FONT></SPAN></DIV></BODY></HTML>