Function infix

contrib/intarray/_int_bool.c:563–637

}

static void
infix(INFIX *in, bool first)
{
	/* since this function recurses, it could be driven to stack overflow. */
	check_stack_depth();

	if (in->curpol->type == VAL)
	{
		RESIZEBUF(in, 11);
		sprintf(in->cur, "%d", in->curpol->val);
		in->cur = strchr(in->cur, '\0');
		in->curpol--;
	}
	else if (in->curpol->val == (int32) '!')
	{
		bool		isopr = false;

		RESIZEBUF(in, 1);
		*(in->cur) = '!';
		in->cur++;
		*(in->cur) = '\0';
		in->curpol--;
		if (in->curpol->type == OPR)
		{
			isopr = true;
			RESIZEBUF(in, 2);
			sprintf(in->cur, "( ");
			in->cur = strchr(in->cur, '\0');
		}
		infix(in, isopr);
		if (isopr)
		{
			RESIZEBUF(in, 2);
			sprintf(in->cur, " )");
			in->cur = strchr(in->cur, '\0');
		}
	}
	else
	{
		int32		op = in->curpol->val;
		INFIX		nrm;

		in->curpol--;
		if (op == (int32) '|' && !first)
		{
			RESIZEBUF(in, 2);
			sprintf(in->cur, "( ");
			in->cur = strchr(in->cur, '\0');
		}

		nrm.curpol = in->curpol;
		nrm.buflen = 16;
		nrm.cur = nrm.buf = (char *) palloc(sizeof(char) * nrm.buflen);

		/* get right operand */
		infix(&nrm, false);

		/* get & print left operand */