Пример #1
0
static void
defineDotEdges(pANTLR3_BASE_TREE_ADAPTOR adaptor, void * t, pANTLR3_STRING dotSpec)
{
	// How many nodes are we talking about?
	//
	int	nCount;
	int i;

	if	(t == NULL)
	{
		// No tree, so do nothing
		//
		return;
	}

	// Count the nodes
	//
	nCount = adaptor->getChildCount(adaptor, t);

	if	(nCount == 0)
	{
		// This will already have been included as a child of another node
		// so there is nothing to add.
		//
		return;
	}

	// For each child, define an edge from this parent, then process
	// and children of this child in the same way
	//
	for	(i=0; i<nCount; i++)
	{
		pANTLR3_BASE_TREE child;
		char	buff[128];

		// Next child
		//
		child	= adaptor->getChild(adaptor, t, i);

		// Create the edge relation
		//
		sprintf(buff, "\t\tn%p -> n%p\t\t// ",  t, child);
		dotSpec->append8(dotSpec, buff);

		// Document the relationship
		//
		dotSpec->appendS(dotSpec, adaptor->getText(adaptor, t));
		dotSpec->append8(dotSpec, " -> ");
		dotSpec->appendS(dotSpec, adaptor->getText(adaptor, child));
		dotSpec->append8(dotSpec, "\n");

		// Define edges for this child
		//
		defineDotEdges(adaptor, child, dotSpec);
	}

	// Done
	//
	return;
}
static  void
toStringWork    (pANTLR3_TREE_NODE_STREAM tns, pANTLR3_BASE_TREE p, pANTLR3_BASE_TREE stop, pANTLR3_STRING buf)
{

        ANTLR3_UINT32   n;
        ANTLR3_UINT32   c;

        if      (!p->isNilNode(p) )
        {
                pANTLR3_STRING  text;

                text    = p->toString(p);

                if  (text == NULL)
                {
                        text = tns->ctns->stringFactory->newRaw(tns->ctns->stringFactory);

                        text->addc      (text, ' ');
                        text->addi      (text, p->getType(p));
                }

                buf->appendS(buf, text);
        }

        if      (p == stop)
        {
                return;         /* Finished */
        }

        n = p->getChildCount(p);

        if      (n > 0 && ! p->isNilNode(p) )
        {
                buf->addc   (buf, ' ');
                buf->addi   (buf, ANTLR3_TOKEN_DOWN);
        }

        for     (c = 0; c<n ; c++)
        {
                pANTLR3_BASE_TREE   child;

                child = p->getChild(p, c);
                tns->toStringWork(tns, child, stop, buf);
        }

        if      (n > 0 && ! p->isNilNode(p) )
        {
                buf->addc   (buf, ' ');
                buf->addi   (buf, ANTLR3_TOKEN_UP);
        }
}