[Chicken-users] Silex & Lalr example wanted

[Joe Anonimist]

(newbie)

Hi all,

I am trying to figure out how Silex and Lalr work together.
The "official" lalr example works but I can't figure out
how to make it work with Silex. The only example I was able
to find online is here:

http://compgroups.net/comp.lang.scheme/a-quick-getting-started-example-with-silex-l/1183462

(apparently posted by another newbie, who actually managed
to make it work)

but when I follow the steps from the example
I get the following error:

Error: call of non-procedure: (lr-driver (quote #(((*default* *error*) (ID 1)) 
((*default* -8)) ((*default* -7)) ((*default* -4)
...
        Call history:

        <eval>    [apply-hooks306] (loop (cdr l))
        <eval>    [apply-hooks306] (cdr l)
        <eval>    [apply-hooks306] (pair? l)
        <eval>    [lexer-init] (lexer-get-func-line IS)
        <eval>    [lexer-get-func-line] (cdr (assq (quote get-user-line) IS))
        <eval>    [lexer-get-func-line] (assq (quote get-user-line) IS)
        <eval>    [lexer-init] (lexer-get-func-getc IS)
        <eval>    [lexer-get-func-getc] (cdr (assq (quote user-getc) IS))
        <eval>    [lexer-get-func-getc] (assq (quote user-getc) IS)
        <eval>    [lexer-init] (lexer-get-func-ungetc IS)
        <eval>    [lexer-get-func-ungetc] (cdr (assq (quote user-ungetc) IS))
        <eval>    [lexer-get-func-ungetc] (assq (quote user-ungetc) IS)
        <syntax>          (print (expr-parser lexer print))
        <syntax>          (expr-parser lexer print)
        <eval>    (print (expr-parser lexer print))
        <eval>    (expr-parser lexer print)     <--

So I would appreciate any examples of a simple 
"calculator" lexer-parser with Silex/Lalr
or any pointers how to make them work together.