27 lines
367 B
Plaintext
27 lines
367 B
Plaintext
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%option noyywrap
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DIG [0-9]
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%%
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{DIG}+ { printf("int(%d) ",atoi(yytext)); }
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[+*()] { printf("'%c' ",*yytext); }
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[ \n] { /* ignore */ }
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%%
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int main (int argc, char **argv)
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{
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YY_BUFFER_STATE buffer;
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buffer = yy_scan_string("100+5*2");
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yylex();
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yy_delete_buffer(buffer);
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buffer = yy_scan_string("20+30");
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yylex();
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yy_delete_buffer(buffer);
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puts("");
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}
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