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<p class=MsoNormal><span lang=EN-US>I’m trying to find a match library
for r6rs. Using the match library from mzlib didn’t work.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Following program worked for r5rs:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>(module match-testing mzscheme <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> (require (lib
"plt-match.ss" "mzlib"))<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> (match '(1 2 1)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> ((list a b a) (display
"foo")))<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US> )<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Trying to write it in r6rs leads to an
error message:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>#!r6rs<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>(library (match-test)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
(export)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
(import (rnrs)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
(mzlib plt-match)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
(match '(1 2 1)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
((list a b a) (display
"foo")))<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>match: no matching clause for {1 2 1}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I also tried mzscheme/match or scheme/match
with the same results. I don’t even know, if they are the same library.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>In the Ikarus code I also found a match
library that was ported to r6rs. But using this library with DrScheme leads to
following error message:<o:p></o:p></span></p>
<p class=MsoNormal style='text-align:justify'><span lang=EN-US>match.ss:377:6:
compile: bad syntax; function application is not allowed, because no #%app
syntax transformer is bound<o:p></o:p></span></p>
<p class=MsoNormal style='text-align:justify'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-align:justify'><span lang=EN-US>Now, I can’t
see any solution. <o:p></o:p></span></p>
<p class=MsoNormal style='text-align:justify'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-align:justify'><span lang=EN-US>Thanks. Stefan
Ballnat<o:p></o:p></span></p>
<p class=MsoNormal style='text-align:justify'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-align:justify'><span lang=EN-US>PS: I’m
using DrScheme 3.99.0.24. <o:p></o:p></span></p>
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