Add keyword with special character

Question

I'm trying to add a language (Scheme) in the lstlisting package.

\section{Scheme}
\lstdefinelanguage{Scheme}
{morekeywords={,lambda, cond, case, display, let, import, quote, quasiquote, unquote,
define, begin, newline, if, list, apply, null?, car, cdr, or, not, and, for-each, 
make-vector, vector-length, vector-ref, vector-set!, eqv?, eq?, equal?, else, set!, 
define-record-type, fields, mutable, immutable, assert, parent, with-exception-handler, }
sensitive=false,
morecomment=[l]{;},
morecomment=[s]{/*}{*/},
morestring=[b]",
}

But, it does when I use a lstlisting it does not recognize the keyword with "!", "?", "-"...

Do you know how can I fix it?

Thank you,

Answer 1

Andreas Stuhlmüller (stuhlmueller) in github developed a Scheme syntax highlighting for the LaTeX listings package. Please, see:

https://github.com/stuhlmueller/scheme-listings

Another possibility is to use SLaTeX, available in http://evalwhen.com/slatex/slatxdoc.html

At http://evalwhen.com/slatex/slatxdoc-Z-H-3.html#node_sec_3 there are examples of use of the "?" for word termination.