32 lines
865 B
Text
32 lines
865 B
Text
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%{
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#include <stdlib.h>
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#include "calc.tab.h"
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#include "calculator.h"
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%}
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%option outfile="calc.yy.cpp" header-file="calc.yy.h"
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%option case-sensitive
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%option array
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D [0-9]
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E [Ee][+-]?{D}+
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%%
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pi { return MATHPI; }
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sin { return FCESIN; }
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cos { return FCECOS; }
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exp { return FCEEXP; }
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log { return FCELOG; }
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[a-zA-Z]+ { yylval.svalue = strdup (yytext); return IDENT; }
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{D}+ { yylval.svalue = strdup (yytext); return INTEGER; }
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{D}*\.{D}+({E})? { yylval.svalue = strdup (yytext); return DOUBLE; }
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{D}*\.{D}*({E})? { yylval.svalue = strdup (yytext); return DOUBLE; }
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\{.*\}
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[ \t]+ /* ignored */
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\n { return ENDLINE; }
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. { return yytext[0]; }
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%%
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void prevent_unused (void) {
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(void) yyunput;
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/* (void) input; */
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}
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