I suppose that would work. Sam suggested on #racket that I include the name of the argument in the macro definition:<div><br></div><div><span class="Apple-style-span" style="font-family: 'courier new', monospace; font-size: 13px; background-color: rgb(255, 255, 255); ">(define-syntax-rule (foo bar form ...)<br> </span><span class="Apple-style-span" style="font-family: 'courier new', monospace; font-size: 13px; background-color: rgb(255, 255, 255); "> ((lambda (bar) form ...) "ARG"))<br></span></div><div><font class="Apple-style-span" face="'courier new', monospace"><br> </font></div><div><font class="Apple-style-span" face="arial, helvetica, sans-serif">Then you could say:</font></div><div><font class="Apple-style-span" face="arial, helvetica, sans-serif"><br></font></div><div><font class="Apple-style-span" face="'courier new', monospace">(foo bar</font></div> <div><font class="Apple-style-span" face="'courier new', monospace"> ; Do stuff with bar here...</font></div><div><font class="Apple-style-span" face="'courier new', monospace"> )</font></div><div><font class="Apple-style-span" face="'courier new', monospace"><br> </font></div><div><div class="gmail_quote">On Fri, Sep 16, 2011 at 1:12 PM, Matthias Felleisen <span dir="ltr"><<a href="mailto:matthias@ccs.neu.edu">matthias@ccs.neu.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> <br> <br> Why not just store the arguments to lambda in some 'register' and ask for them?<br> <div><div></div><div class="h5"><br> <br> <br> <br> On Sep 16, 2011, at 4:09 PM, Daniel MacDougall wrote:<br> <br> > In this example it should return "ARG".<br> ><br> > On Fri, Sep 16, 2011 at 1:08 PM, Matthias Felleisen <<a href="mailto:matthias@ccs.neu.edu">matthias@ccs.neu.edu</a>> wrote:<br> ><br> ><br> > What should (foo bar) return?<br> ><br> ><br> > On Sep 16, 2011, at 3:46 PM, Daniel MacDougall wrote:<br> ><br> > > Is there any way to define a macro that expands out to a lambda, and then access the arguments passed to that lambda from outside the macro in the calling context?<br> > > Here's an example of what I mean:<br> > ><br> > > #lang racket<br> > ><br> > > (define-syntax-rule (foo form ...)<br> > > ((lambda (bar) form ...) "ARG"))<br> > ><br> > > (foo "Hello") ; => returns "Hello"<br> > ><br> > > (foo bar) ; => expand: unbound identifier in module in: bar<br> > ><br> > ><br> > > I'd like access to the "bar" argument on the last line. Is this possible with Racket macros?<br> > ><br> > > Thanks,<br> > > Daniel<br> > > _________________________________________________<br> > > For list-related administrative tasks:<br> > > <a href="http://lists.racket-lang.org/listinfo/users" target="_blank">http://lists.racket-lang.org/listinfo/users</a><br> ><br> ><br> <br> </div></div></blockquote></div><br></div>