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|
%{
// **********************************************************************
//
// Copyright (c) 2003-2017 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <NodeI.h>
#include <Parser.h>
#ifdef _MSC_VER
// I get these warnings from some bison versions:
// warning C4102: 'yyoverflowlab' : unreferenced label
# pragma warning( disable : 4102 )
// warning C4065: switch statement contains 'default' but no 'case' labels
# pragma warning( disable : 4065 )
#endif
using namespace std;
using namespace Ice;
void
yyerror(const char* s)
{
parser->error(s);
}
%}
%pure_parser
%expect 4
%token TOK_NUMBER
%%
start
: expr
{
parser->setResult($$);
}
;
expr
: TOK_NUMBER
{
$$ = $1;
}
| expr '+' expr
{
$$ = new Complex::AddNodeI($1, $3);
}
| '(' expr ')'
{
$$ = $2;
}
| expr '*' expr
{
$$ = new Complex::MultiplyNodeI($1, $3);
}
;
%%
|
