expand.c

/*
 * Bill Lin
 * University of California, Berkeley
 * Comments to billlin@ic.Berkeley.EDU
 *
 * Copyright (c) 1989 Bill Lin, UC Berkeley CAD Group
 *     Permission is granted to do anything with this
 *     code except sell it or remove this message.
 */
#include "jedi.h"

int expand_code();			/* forward declaration */

expand_code()
{
    int i, j, c;

    for (i=0; i<ne; i++) {
	for (j=0; j<enumtypes[i].ns; j++) {
	    c = enumtypes[i].symbols[j].code_ptr;
	    expand_actual_code(i, c);
	}
    }
}

expand_actual_code(i, c)
int i;		/* enumtype */
int c;		/* code */
{
     FILE *fp;
     int k, nc, nb;
     int diff, j;
     char line[BUFSIZE];
     char p1, p2;

     nc = enumtypes[i].nc;
     nb = enumtypes[i].nb;

     fp = my_fopen("temp1", "w");
     (void) fprintf(fp, ".i %d\n", nb);
     (void) fprintf(fp, ".o 1\n");
     (void) fprintf(fp, "%s 1\n", enumtypes[i].codes[c].bit_vector);
     for (k=0;k<nc;k++) {
	 if (!enumtypes[i].codes[k].assigned) {
	     (void) fprintf(fp, "%s -\n", enumtypes[i].codes[k].bit_vector);
	 }
     }
     (void) fclose(fp);
     (void) util_csystem("espresso < temp1 > temp2");
     fp = my_fopen("temp2", "r");
     (void) fgets(line, BUFSIZE, fp);
     (void) fgets(line, BUFSIZE, fp);
     (void) fgets(line, BUFSIZE, fp);
     (void) fgets(line, BUFSIZE, fp);
     for (j=0;j<nb; j++) {
	 enumtypes[i].codes[c].bit_vector[j] = line[j];
     }
     (void) fclose(fp);
     (void) util_csystem("rm -f temp1 temp2");

     /* now remove unused codes */
     for (k=0;k<nc;k++) {
	 if (!enumtypes[i].codes[k].assigned) {
	     diff = 0;
	     for (j=0; j<nb; j++) {
		 p1 = enumtypes[i].codes[k].bit_vector[j];
		 p2 = line[j];
		 if (p1 != p2 && p1 != '-' && p2 != '-') diff++;
	     }
	     if (diff == 0) enumtypes[i].codes[k].assigned = TRUE;
	 }
     }
}