/// Produce a DOT specification for graphviz
//
static pANTLR3_STRING
makeDot (pANTLR3_BASE_TREE_ADAPTOR adaptor, void * theTree)
{
// The string we are building up
//
pANTLR3_STRING dotSpec;
dotSpec = adaptor->strFactory->newStr
(
adaptor->strFactory,
// Default look and feel
//
(pANTLR3_UINT8)
"digraph {\n\n"
"\tordering=out;\n"
"\tranksep=.4;\n"
"\tbgcolor=\"lightgrey\"; node [shape=box, fixedsize=false, fontsize=12, fontname=\"Helvetica-bold\", fontcolor=\"blue\"\n"
"\twidth=.25, height=.25, color=\"black\", fillcolor=\"white\", style=\"filled, solid, bold\"];\n\n"
"\tedge [arrowsize=.5, color=\"black\", style=\"bold\"]\n\n"
);
// First produce the node defintions
//
defineDotNodes(adaptor, theTree, dotSpec);
dotSpec->append8(dotSpec, "\n");
defineDotEdges(adaptor, theTree, dotSpec);
// Terminate the spec
//
dotSpec->append8(dotSpec, "\n}");
// Result
//
return dotSpec;
}
/// Produce a DOT specification for graphviz
//
static pANTLR3_STRING
makeDot (pANTLR3_BASE_TREE_ADAPTOR adaptor, void * theTree)
{
// The string we are building up
//
pANTLR3_STRING dotSpec;
char buff[64];
pANTLR3_STRING text;
int j;
dotSpec = adaptor->strFactory->newStr8
(
adaptor->strFactory,
// Default look and feel
//
(pANTLR3_UINT8)
"digraph {\n\n"
"\tordering=out;\n"
"\tranksep=.4;\n"
"\tbgcolor=\"lightgrey\"; node [shape=box, fixedsize=false, fontsize=12, fontname=\"Helvetica-bold\", fontcolor=\"blue\"\n"
"\twidth=.25, height=.25, color=\"black\", fillcolor=\"white\", style=\"filled, solid, bold\"];\n\n"
"\tedge [arrowsize=.5, color=\"black\", style=\"bold\"]\n\n"
);
if (theTree == NULL)
{
// No tree, so create a blank spec
//
dotSpec->append8(dotSpec, "n0[label=\"EMPTY TREE\"]\n");
return dotSpec;
}
sprintf(buff, "\tn%p[label=\"", theTree);
dotSpec->append8(dotSpec, buff);
text = adaptor->getText(adaptor, theTree);
for (j = 0; j < (ANTLR3_INT32)(text->len); j++)
{
switch(text->charAt(text, j))
{
case '"':
dotSpec->append8(dotSpec, "\\\"");
break;
case '\n':
dotSpec->append8(dotSpec, "\\n");
break;
case '\r':
dotSpec->append8(dotSpec, "\\r");
break;
default:
dotSpec->addc(dotSpec, text->charAt(text, j));
break;
}
}
dotSpec->append8(dotSpec, "\"]\n");
// First produce the node defintions
//
defineDotNodes(adaptor, theTree, dotSpec);
dotSpec->append8(dotSpec, "\n");
defineDotEdges(adaptor, theTree, dotSpec);
// Terminate the spec
//
dotSpec->append8(dotSpec, "\n}");
// Result
//
return dotSpec;
}
static void
defineDotNodes(pANTLR3_BASE_TREE_ADAPTOR adaptor, void * t, pANTLR3_STRING dotSpec )
{
// How many nodes are we talking about?
//
int nCount;
int i;
pANTLR3_BASE_TREE child;
char buff[64];
pANTLR3_STRING text;
int j;
// 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 of the current tree, define a node using the
// memory address of the node to name it
//
for (i = 0; i<nCount; i++)
{
// Pick up a pointer for the child
//
child = (pANTLR3_BASE_TREE)adaptor->getChild(adaptor, t, i);
// Name the node
//
sprintf(buff, "\tn%p[label=\"", child);
dotSpec->append8(dotSpec, buff);
text = adaptor->getText(adaptor, child);
for (j = 0; j < (ANTLR3_INT32)(text->len); j++)
{
switch(text->charAt(text, j))
{
case '"':
dotSpec->append8(dotSpec, "\\\"");
break;
case '\n':
dotSpec->append8(dotSpec, "\\n");
break;
case '\r':
dotSpec->append8(dotSpec, "\\r");
break;
default:
dotSpec->addc(dotSpec, text->charAt(text, j));
break;
}
}
dotSpec->append8(dotSpec, "\"]\n");
// And now define the children of this child (if any)
//
defineDotNodes(adaptor, child, dotSpec);
}
// Done
//
return;
}