Re: Solving a shift/reduce conflict with an explicit precedence

Derk Gwen <derkgwen@HotPOP.com>
25 Jul 2003 21:15:23 -0400

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Solving a shift/reduce conflict with an explicit precedence mdhe51@dial.pipex.com (Paul Davis) (2003-07-23)
Re: Solving a shift/reduce conflict with an explicit precedence haberg@matematik.su.se (2003-07-25)
Re: Solving a shift/reduce conflict with an explicit precedence derkgwen@HotPOP.com (Derk Gwen) (2003-07-25)
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From: Derk Gwen <derkgwen@HotPOP.com>
Newsgroups: comp.compilers
Date: 25 Jul 2003 21:15:23 -0400
Organization: Quick STOP Groceries
References: 03-07-170
Keywords: parse, design, comment
Posted-Date: 25 Jul 2003 21:15:23 EDT

# production is ambiguous. The obvious solution to fix this is to
# rewrite 'const_expr' so that it doesn't include NAME. However, the


Perhaps the less obvious solution is that this is part of the context
sensitive grammar and cannot be captured with a fixed number of context
free rules. Why not drop trying to parse const_expr, just parse all
expression and then decide if the parse tree is a constant or not.


--
Derk Gwen http://derkgwen.250free.com/html/index.html
[I agree. You can produce much better error messages that way. -John]


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