Re: Advice for writing small Scheme interpreter
- To: mathgroup at smc.vnet.net
- Subject: [mg74522] Re: Advice for writing small Scheme interpreter
- From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
- Date: Fri, 23 Mar 2007 19:20:20 -0500 (EST)
- Organization: The Open University, Milton Keynes, UK
- References: <ett6c9$gba$1@smc.vnet.net>
wooks wrote: > I need to write a very small Scheme interpreter in Mathematica to > complete my project. > > How can I stop Mathematica from evaluating statements so that they can > be parsed in their raw form by the interpreter code. > > For example I don't want (+ 7 8) converted into 56 before I can parse > it. > > What you want is to modify Mathematica main evaluation loop. The following section of the Mathematica book should explain it all. See section "2.14.1 The Main Loop" at http://documents.wolfram.com/mathematica/book/section-2.14.1 Also, check the documentation for $Pre and the like. Regards, Jean-Marc