Using C++ Boost lib "read_graphviz()" to convert a graph int LEDA graph format

dot2leda.cpp

//=======================================================================
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
/*
   f=dot2leda
   g++ -O3 -Wall -pedantic -Wextra $f.cpp -o $f -lboost_graph
   cpplint --filter=-legal/copyright,-build/namespaces $f.cpp
   cppcheck --enable=all --suppress=missingIncludeSystem $f.cpp --check-config
*/
//=======================================================================
#include <boost/graph/graphviz.hpp>
#include <boost/graph/adjacency_list.hpp>

using namespace boost;
using namespace std;

int main(int argc, char *argv[]) {
    assert(argc == 2);

    typedef adjacency_list< vecS, vecS, undirectedS,
                property< vertex_name_t, string > > graph_t;

    graph_t graph(0);
    dynamic_properties dp;

    property_map< graph_t, vertex_name_t >::type vname
        = get(vertex_name, graph);
    dp.property("node_id", vname);

    ifstream gvgraph(argv[1]);

    assert(read_graphviz(gvgraph, graph, dp, "node_id"));

    cout << "LEDA.GRAPH" << "\n";
    cout << "string" << "\n";
    cout << "int" << "\n";

    cout << num_vertices(graph) << "\n";

    BOOST_FOREACH(graph_t::vertex_descriptor v, vertices(graph)) {
        cout << get("node_id", dp, v) << "\n";
    }

    cout << num_edges(graph) << "\n";

    BOOST_FOREACH(graph_t::edge_descriptor e, edges(graph)) {
        cout << 1+source(e, graph) << " " << 1+target(e, graph)
             << " " << 0 << "\n";
    }

    return 0;
}

Together with straight_line_graphviz.cpp and GraphvizFiddle.py gists allows to display planar straight line drawing in browser (layout is done by straight_line_graphviz.cpp, neato only used to display graph, does no layout itself):

$ GraphvizFiddle.py chromium-browser <(../straight_line_graphviz <(./dot2leda <(curl -s https://stamm-wilbrandt.de/C60.dot)))
$ 

Result is this planar straight line drawing of C60 fullerene in browser.

Layout is a bit big; after manually adding size="10,200" at bottom of editor and pressing Draw button you get below. The bold edges belong to C60, the dotted edges are part of the triangulation needed because of straight_line_drawing algorithm only working on maximal planar graph:

You might know C60 well, it is called "football fullerene" as well (it has twenty 6-gons and twelve 5-gons):
https://en.wikipedia.org/wiki/Buckminsterfullerene

After

sudo apt install libboost-doc
cd
cp -r /usr/share/doc/libboost1.74-doc/examples/libs/graph/example .
cd example

many of the examples making use of read_graphviz() do not even compile:

$ head -14 scc.cpp | tail -6
/*
   IMPORTANT!!!
   ~~~~~~~~~~~~
   This example uses interfaces that have been deprecated and removed from
   Boost.Grpah. Someone needs to update it, as it does NOT compile.
*/
$ 

This demo works, and was the basis I started with for ending in this gist code:

$ g++ graph-thingie.cpp -lboost_graph
$ ./a.out 
graph GRAPH (CX2A1Z)

vertex a (NODE_A)
vertex b (NODE_B)
vertex c ()
$

This is the demo input graph:

$ head -89 graph-thingie.cpp | tail -12
    const char* dot = "digraph \
{ \
  graph [name=\"GRAPH\", identifier=\"CX2A1Z\"] \
    \
    a [label=\"NODE_A\", root=\"1\"] \
    b [label=\"NODE_B\", root=\"0\"] \
 \
 a -> b [label=\"EDGE_1\"] \
 b -> c [label=\"EDGE_2\"] \
}";

    istringstream gvgraph(dot);
$