23 lines
442 B
Plaintext
23 lines
442 B
Plaintext
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%%
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%jayscanner calcscanner
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%jayparser calcparser
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%class calclexer
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%eofval{
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return new EOF();
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%eofval}
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ws = [ \t\r\n]+
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%%
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[0-9]+ { return new INT(yytext());}
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[0-9]+\.[0-9]+ { return new FLOAT(yytext());}
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"(" { return new OPEN(yytext());}
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")" { return new CLOSE(yytext());}
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"+" { return new ADD(yytext());}
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"-" { return new SUBTRACT(yytext());}
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"*" { return new MULTIPLY(yytext());}
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"/" { return new DIVIDE(yytext());}
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{ws} { /*ignore*/ }
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