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%{
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#define YYSTYPE double
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#include "calc.tab.h"
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extern YYSTYPE yylval;
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%}
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%%
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[0-9]+\.?[0-9]* { yylval = atof( yytext ); return NUMBER; };
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[ \t] ; /* ignore whitespace */
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\n { return yytext[0]; };
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. { return yytext[0]; }
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<<EOF>> { printf("eof\n"); return 0; };
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%%
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