void WordPrint( word gs )
{
if ( gs->g != EOW ) {
if ( gs->g > 0 ) {
PrintGen( gs->g );
if ( gs->e > (exp)1 )
#ifdef LONGLONG
printf( "^%Ld", gs->e );
#else
printf( "^%d", gs->e );
#endif
}
else {
PrintGen( -gs->g );
#ifdef LONGLONG
printf( "^-%Ld", gs->e );
#else
printf( "^-%d", gs->e );
#endif
}
}
else {
printf( "1" );
return;
}
gs++;
while ( gs->g != EOW ) {
putchar( '*' );
if ( gs->g > 0 ) {
PrintGen( gs->g );
if ( gs->e > (exp)1 )
#ifdef LONGLONG
printf( "^%Ld", gs->e );
#else
printf( "^%d", gs->e );
#endif
}
else {
PrintGen( -gs->g );
#ifdef LONGLONG
printf( "^-%Ld", gs->e );
#else
printf( "^-%d", gs->e );
#endif
}
gs++;
}
}
/*
** PrintNode() just looks at the type of a node and then calls the
** appropriate print function.
*/
void PrintNode(node *n) {
switch (n->type) {
case TNUM:
{ PrintNum(n->cont.n); break; }
case TGEN:
{ PrintGen(n->cont.g); break; }
case TMULT:
{ PrintMult(n->cont.op.l, n->cont.op.r); break; }
case TPOW:
{ PrintPow(n->cont.op.l, n->cont.op.r); break; }
case TCONJ:
{ PrintConj(n->cont.op.l, n->cont.op.r); break; }
case TCOMM:
{ PrintComm(n->cont.op.l, n->cont.op.r, 1); break; }
case TREL:
{ PrintRel(n->cont.op.l, n->cont.op.r); break; }
case TDRELL:
{ PrintDRelL(n->cont.op.l, n->cont.op.r); break; }
case TDRELR:
{ PrintDRelR(n->cont.op.l, n->cont.op.r); break; }
case TENGEL: {
PrintEngel(n->cont.op.l, n->cont.op.r,
n->cont.op.e);
break;
}
default:
{ fprintf(OutFp, "\nunknown node type\n"); exit(5); }
}
}
/*
** PrintPresentation() prints the presentation stored in the global
** variable Pres.
*/
void PrintPresentation(FILE *fp) {
gen g;
int r;
InitPrint(fp);
if (Pres.nragens == 0) return;
/* Open the presentation. */
fprintf(OutFp, "< ");
/* Print the generators first. */
PrintGen(1);
for (g = 2; g <= (gen)Pres.nragens; g++) {
fprintf(OutFp, ", ");
PrintGen(g);
}
if (Pres.nrigens > 0) {
fprintf(OutFp, "; ");
PrintGen(Pres.nragens + 1);
for (g = Pres.nragens + 2; g <= (gen)(Pres.nragens + Pres.nrigens); g++) {
fprintf(OutFp, ", ");
PrintGen(g);
}
}
/* Now the delimiter. */
fprintf(OutFp, " |\n");
/* Now the relations. */
if (Pres.rels[0] != (node *)0) {
fprintf(OutFp, " ");
PrintNode(Pres.rels[0]);
}
for (r = 1; Pres.rels[r] != (node *)0; r++) {
fprintf(OutFp, ",\n ");
PrintNode(Pres.rels[r]);
}
/* And close the presentation. */
fprintf(OutFp, " >\n");
}