Operator-precedence parser: Difference between revisions

Revision as of 20:00, 11 July 2006

Revision as of 19:10, 23 August 2006

Line 83:

<pre>

#include <stdio.h>

#include <string.h>

char *intable[] = { NULL, "^", "*", "/", "+", "-", "" };

int main(int argc, char **argv[]){

char *outtable[] = { "))))\n", ")^(", "))*((", "))/((", ")))+(((", ")))-(((", "((((" };

int i, tab;

int main(int argc, char **argv)

{

printf("((((");

int i, tab;

for (argv[i=0]=""1; i <!= argc; i++) {

if( strcmp(argv[i], "^")==0) printf(")^(");

for (tab = 0; tab < (sizeof(outtable)/sizeof(char *)); tab += 1) {

else if ((!argv[i]) || (tab && !strcmp(argv[i], intable[tab]"*")==0) printf(") {)*((");

else if(strcmp(argv[i], "/")==0) printf("%s))/((", outtable[tab]); break;

} else if (tab && !*intablestrcmp(argv[tabi], "+")==0) printf("%s)))+(((", argv[i]);

else if(strcmp(argv[i], "-")==0) printf(")))-(((");

}

else printf("%s", argv[i]);

}

printf("))))\n");

return 0;

}

</pre>