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  • Committer: Bazaar Package Importer
  • Author(s): Stefano Zacchiroli
  • Date: 2005-03-29 11:06:39 UTC
  • mfrom: (2.1.2 hoary)
  • Revision ID: james.westby@ubuntu.com-20050329110639-5p39hz1d4aq3r2ec
Tags: 1.1.95-6
* Rebuilt against ocaml 3.08.3
* No longer built with wlex support (since wlex is no longer supported
  upstream and corresponding package has been removed from the debian
  archive)

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examples/eventparser/expr.mly
 
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%token Space Newline Stop
 
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%token Add Sub Mult Div LParen RParen
 
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%token<int> Number
 
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%start topexpr
 
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%type<int> topexpr
 
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%left Add Sub
 
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%left Mult Div
 
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%nonassoc Number LParen RParen
 
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%%
 
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topexpr:
 
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  expr Stop { $1 }
 
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;
 
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expr:
 
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  expr Add expr        { $1 + $3 }
 
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| expr Sub expr        { $1 - $3 }
 
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| expr Mult expr       { $1 * $3 }
 
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| expr Div expr        { $1 / $3 }
 
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| LParen expr RParen   { $2 }
 
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| Number               { $1 }
 
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;
 
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