Want info on Abstract Syntax Trees

kucera@mindspring.com (Mark Kucera)
8 Oct 1997 00:36:59 -0400

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Want info on Abstract Syntax Trees kucera@mindspring.com (1997-10-08)
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From: kucera@mindspring.com (Mark Kucera)
Newsgroups: comp.compilers
Date: 8 Oct 1997 00:36:59 -0400
Organization: MindSpring Enterprises
Keywords: parse, question
X-Server-Date: 3 Oct 1997 17:34:14 GMT

I need some help understanding Abstract Syntax Trees. I understand
their purpose, and how to implement simple expresions but could
someone please show me what something like a variable decl would look
like in a AST? do they exist? or does a variable dec. just get put in
the Symbol Table, and is not represented at all in the AST? If the
AST has a root node that is the start symbol, how do i include a
function declaration (not a function call mind you) in the AST, with
out degenerating the ast into a parse tree. i know exactly how to do
that, but can't find any good resources on ast's that show more than
simple arithmetic expressions.

Please Help

we would appreciate it SO much!!!

Mark and Jay

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