marci@281: // -*- c++ -*-
marci@281: #include <iostream>
marci@281: #include <vector>
marci@281: #include <string>
marci@281: 
marci@281: #include <list_graph.h>
marci@281: //#include <smart_graph.h>
marci@303: #include <bfs_iterator.h>
marci@303: #include <graph_wrapper.h>
marci@281: 
marci@281: using namespace hugo;
marci@281: using std::cout; 
marci@281: using std::endl;
marci@281: using std::string;
marci@281: 
marci@281: template <typename Graph, typename NodeNameMap>
marci@281: class EdgeNameMap {
marci@281:   Graph& graph;
marci@281:   NodeNameMap& node_name_map;
marci@281: public:
marci@281:   EdgeNameMap(Graph& _graph, NodeNameMap& _node_name_map) : 
marci@281:     graph(_graph), node_name_map(_node_name_map) { }
marci@281:   string get(typename Graph::Edge e) const { 
marci@281:     return 
marci@281:       (node_name_map.get(graph.tail(e))+"->"+node_name_map.get(graph.head(e)));
marci@281:   }
marci@281: };
marci@281: 
marci@281: int main (int, char*[])
marci@281: {
marci@281:   //typedef SmartGraph Graph;
marci@281:   typedef ListGraph Graph;
marci@281: 
marci@281:   typedef Graph::Node Node;
marci@281:   typedef Graph::Edge Edge;
marci@281:  
marci@281:   Graph G;
marci@281: 
marci@281:   Node s=G.addNode();
marci@281:   Node v1=G.addNode();
marci@281:   Node v2=G.addNode();
marci@281:   Node v3=G.addNode();
marci@281:   Node v4=G.addNode();
marci@281:   Node t=G.addNode();
marci@281:   
marci@281:   Graph::NodeMap<string> node_name(G);
marci@281:   node_name.set(s, "s");
marci@281:   node_name.set(v1, "v1");
marci@281:   node_name.set(v2, "v2");
marci@281:   node_name.set(v3, "v3");
marci@281:   node_name.set(v4, "v4");
marci@281:   node_name.set(t, "t");
marci@281: 
marci@281:   G.addEdge(s, v1);
marci@281:   G.addEdge(s, v2);
marci@281:   G.addEdge(v1, v2);
marci@281:   G.addEdge(v2, v1);
marci@281:   G.addEdge(v1, v3);
marci@281:   G.addEdge(v3, v2);
marci@281:   G.addEdge(v2, v4);
marci@281:   G.addEdge(v4, v3);
marci@281:   G.addEdge(v3, t);
marci@281:   G.addEdge(v4, t);
marci@281: 
marci@281:   cout << "    /-->    ------------->            "<< endl;
marci@281:   cout << "   / /-- v1 <-\\      /---- v3-\\      "<< endl;
marci@281:   cout << "  / |          |    /  /->     \\     "<< endl;
marci@281:   cout << " /  |          |   /  |    ^    \\  "<< endl;
marci@281:   cout << "s   |          |  /   |    |     \\->  t "<< endl;
marci@281:   cout << " \\  |          | /    |    |     /->  "<< endl;
marci@281:   cout << "  \\ |       --/ /     |    |    /     "<< endl;
marci@281:   cout << "   \\ \\-> v2 <--/       \\-- v4 -/      "<< endl;
marci@281:   cout << "    \\-->    ------------->         "<< endl;
marci@281:   
marci@281: //   typedef TrivGraphWrapper<const Graph> CGW;
marci@281: //   CGW gw(G);
marci@281: 
marci@281: //   cout << "bfs and dfs demo on the directed graph" << endl;
marci@281: //   for(CGW::NodeIt n=gw.first<CGW::NodeIt>(); n.valid(); ++n) { 
marci@281: //     cout << n << ": ";
marci@281: //     cout << "out edges: ";
marci@281: //     for(CGW::OutEdgeIt e=gw.first<CGW::OutEdgeIt>(n); e.valid(); ++e) 
marci@281: //       cout << e << " ";
marci@281: //     cout << "in edges: ";
marci@281: //     for(CGW::InEdgeIt e=gw.first<CGW::InEdgeIt>(n); e.valid(); ++e) 
marci@281: //       cout << e << " ";
marci@281: //     cout << endl;
marci@281: //   }
marci@281: 
marci@281:   {
marci@281:     typedef TrivGraphWrapper<const Graph> GW;
marci@281:     GW gw(G);
marci@281: 
marci@281:     EdgeNameMap< GW, Graph::NodeMap<string> > edge_name(gw, node_name);
marci@281:     
marci@281:     cout << "bfs and dfs iterator demo on the directed graph" << endl;
marci@281:     for(GW::NodeIt n(gw); gw.valid(n); gw.next(n)) { 
marci@281:       cout << node_name.get(n) << ": ";
marci@281:       cout << "out edges: ";
marci@281:       for(GW::OutEdgeIt e(gw, n); gw.valid(e); gw.next(e)) 
marci@281: 	cout << edge_name.get(e) << " ";
marci@281:       cout << "in edges: ";
marci@281:       for(GW::InEdgeIt e(gw, n); gw.valid(e); gw.next(e)) 
marci@281: 	cout << edge_name.get(e) << " ";
marci@281:       cout << endl;
marci@281:     }
marci@281: 
marci@281:     cout << "bfs from s ..." << endl;
marci@281:     BfsIterator5< GW, GW::NodeMap<bool> > bfs(gw);
marci@281:     bfs.pushAndSetReached(s);
marci@281:     while (!bfs.finished()) {
marci@281:       //cout << "edge: ";
marci@281:       if (gw.valid(bfs)) {
marci@281: 	cout << edge_name.get(bfs) << /*endl*/", " << 
marci@281: 	  node_name.get(gw.aNode(bfs)) << 
marci@281: 	  (bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") << 
marci@281: 	  node_name.get(gw.bNode(bfs)) << 
marci@281: 	  (bfs.isBNodeNewlyReached() ? ": is newly reached." : 
marci@281: 	   ": is not newly reached.");
marci@281:       } else { 
marci@281: 	cout << "invalid" << /*endl*/", " << 
marci@281: 	  node_name.get(bfs.aNode()) << 
marci@281: 	  (bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") << 
marci@281: 	  
marci@281: 	  "invalid.";
marci@281:       }
marci@281:       cout << endl;
marci@281:       ++bfs;
marci@281:     }
marci@281: 
marci@281:     cout << "    /-->    ------------->            "<< endl;
marci@281:     cout << "   / /-- v1 <-\\      /---- v3-\\      "<< endl;
marci@281:     cout << "  / |          |    /  /->     \\     "<< endl;
marci@281:     cout << " /  |          |   /  |    ^    \\  "<< endl;
marci@281:     cout << "s   |          |  /   |    |     \\->  t "<< endl;
marci@281:     cout << " \\  |          | /    |    |     /->  "<< endl;
marci@281:     cout << "  \\ |       --/ /     |    |    /     "<< endl;
marci@281:     cout << "   \\ \\-> v2 <--/       \\-- v4 -/      "<< endl;
marci@281:     cout << "    \\-->    ------------->         "<< endl;
marci@281: 
marci@281:     cout << "dfs from s ..." << endl;
marci@281:     DfsIterator5< GW, GW::NodeMap<bool> > dfs(gw);
marci@281:     dfs.pushAndSetReached(s);
marci@281:     while (!dfs.finished()) {
marci@281:       ++dfs;
marci@281:       //cout << "edge: ";
marci@281:       if (gw.valid(dfs)) {
marci@281: 	cout << edge_name.get(dfs) << /*endl*/", " << 
marci@281: 	  node_name.get(gw.aNode(dfs)) << 
marci@281: 	  (dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") << 
marci@281: 	  node_name.get(gw.bNode(dfs)) << 
marci@281: 	  (dfs.isBNodeNewlyReached() ? ": is newly reached." : 
marci@281: 	   ": is not newly reached.");
marci@281:       } else { 
marci@281: 	cout << "invalid" << /*endl*/", " << 
marci@281: 	  node_name.get(dfs.aNode()) << 
marci@281: 	  (dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") << 
marci@281: 	  
marci@281: 	  "invalid.";
marci@281:       }
marci@281:       cout << endl;
marci@281:     }
marci@281:   }
marci@281: 
marci@281: 
marci@281:   {
marci@281:     typedef RevGraphWrapper<const TrivGraphWrapper<const Graph> > GW;
marci@281:     GW gw(G);
marci@281:     
marci@281:     EdgeNameMap< GW, Graph::NodeMap<string> > edge_name(gw, node_name);
marci@281:     
marci@281:     cout << "bfs and dfs iterator demo on the reversed directed graph" << endl;
marci@281:     for(GW::NodeIt n(gw); gw.valid(n); gw.next(n)) { 
marci@281:       cout << node_name.get(n) << ": ";
marci@281:       cout << "out edges: ";
marci@281:       for(GW::OutEdgeIt e(gw, n); gw.valid(e); gw.next(e)) 
marci@281: 	cout << edge_name.get(e) << " ";
marci@281:       cout << "in edges: ";
marci@281:       for(GW::InEdgeIt e(gw, n); gw.valid(e); gw.next(e)) 
marci@281: 	cout << edge_name.get(e) << " ";
marci@281:       cout << endl;
marci@281:     }
marci@281: 
marci@281:     cout << "bfs from t ..." << endl;
marci@281:     BfsIterator5< GW, GW::NodeMap<bool> > bfs(gw);
marci@281:     bfs.pushAndSetReached(t);
marci@281:     while (!bfs.finished()) {
marci@281:       //cout << "edge: ";
marci@281:       if (gw.valid(bfs)) {
marci@281: 	cout << edge_name.get(bfs) << /*endl*/", " << 
marci@281: 	  node_name.get(gw.aNode(bfs)) << 
marci@281: 	  (bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") << 
marci@281: 	  node_name.get(gw.bNode(bfs)) << 
marci@281: 	  (bfs.isBNodeNewlyReached() ? ": is newly reached." : 
marci@281: 	   ": is not newly reached.");
marci@281:       } else { 
marci@281: 	cout << "invalid" << /*endl*/", " << 
marci@281: 	  node_name.get(bfs.aNode()) << 
marci@281: 	  (bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") << 
marci@281: 	  
marci@281: 	  "invalid.";
marci@281:       }
marci@281:       cout << endl;
marci@281:       ++bfs;
marci@281:     }
marci@281: 
marci@281:     cout << "    /-->    ------------->            "<< endl;
marci@281:     cout << "   / /-- v1 <-\\      /---- v3-\\      "<< endl;
marci@281:     cout << "  / |          |    /  /->     \\     "<< endl;
marci@281:     cout << " /  |          |   /  |    ^    \\  "<< endl;
marci@281:     cout << "s   |          |  /   |    |     \\->  t "<< endl;
marci@281:     cout << " \\  |          | /    |    |     /->  "<< endl;
marci@281:     cout << "  \\ |       --/ /     |    |    /     "<< endl;
marci@281:     cout << "   \\ \\-> v2 <--/       \\-- v4 -/      "<< endl;
marci@281:     cout << "    \\-->    ------------->         "<< endl;
marci@281:     
marci@281:     cout << "dfs from t ..." << endl;
marci@281:     DfsIterator5< GW, GW::NodeMap<bool> > dfs(gw);
marci@281:     dfs.pushAndSetReached(t);
marci@281:     while (!dfs.finished()) {
marci@281:       ++dfs;
marci@281:       //cout << "edge: ";
marci@281:       if (gw.valid(dfs)) {
marci@281: 	cout << edge_name.get(dfs) << /*endl*/", " << 
marci@281: 	  node_name.get(gw.aNode(dfs)) << 
marci@281: 	  (dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") << 
marci@281: 	  node_name.get(gw.bNode(dfs)) << 
marci@281: 	  (dfs.isBNodeNewlyReached() ? ": is newly reached." : 
marci@281: 	   ": is not newly reached.");
marci@281:       } else { 
marci@281: 	cout << "invalid" << /*endl*/", " << 
marci@281: 	  node_name.get(dfs.aNode()) << 
marci@281: 	  (dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") << 
marci@281: 	  
marci@281: 	  "invalid.";
marci@281:       }
marci@281:       cout << endl;
marci@281:     }
marci@281:   }
marci@281: 
marci@281:   {
marci@281:     //typedef UndirGraphWrapper<const Graph> GW;
marci@281:     typedef UndirGraphWrapper<const TrivGraphWrapper<const Graph> > GW;
marci@281:     GW gw(G);
marci@281:     
marci@281:     EdgeNameMap< GW, Graph::NodeMap<string> > edge_name(gw, node_name);
marci@281:     
marci@281:     cout << "bfs and dfs iterator demo on the undirected graph" << endl;
marci@281:     for(GW::NodeIt n(gw); gw.valid(n); gw.next(n)) { 
marci@281:       cout << node_name.get(n) << ": ";
marci@281:       cout << "out edges: ";
marci@281:       for(GW::OutEdgeIt e(gw, n); gw.valid(e); gw.next(e)) 
marci@281: 	cout << edge_name.get(e) << " ";
marci@281:       cout << "in edges: ";
marci@281:       for(GW::InEdgeIt e(gw, n); gw.valid(e); gw.next(e)) 
marci@281: 	cout << edge_name.get(e) << " ";
marci@281:       cout << endl;
marci@281:     }
marci@281: //     for(GW::EdgeIt e=gw.first<GW::EdgeIt>(); gw.valid(e); gw.next(e)) { 
marci@281: //       cout << edge_name.get(e) << " ";
marci@281: //     }
marci@281: //     cout << endl;
marci@281: 
marci@281:     cout << "bfs from t ..." << endl;
marci@281:     BfsIterator5< GW, GW::NodeMap<bool> > bfs(gw);
marci@281:     bfs.pushAndSetReached(t);
marci@281:     while (!bfs.finished()) {
marci@281:       //cout << "edge: ";
marci@281:       if (gw.valid(GW::OutEdgeIt(bfs))) {
marci@281: 	cout << edge_name.get(GW::OutEdgeIt(bfs)) << /*endl*/", " << 
marci@281: 	  node_name.get(gw.aNode(bfs)) << 
marci@281: 	  (bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") << 
marci@281: 	  node_name.get(gw.bNode(bfs)) << 
marci@281: 	  (bfs.isBNodeNewlyReached() ? ": is newly reached." : 
marci@281: 	   ": is not newly reached.");
marci@281:       } else { 
marci@281: 	cout << "invalid" << /*endl*/", " << 
marci@281: 	  node_name.get(bfs.aNode()) << 
marci@281: 	  (bfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") << 
marci@281: 	  
marci@281: 	  "invalid.";
marci@281:       }
marci@281:       cout << endl;
marci@281:       ++bfs;
marci@281:     }
marci@281: 
marci@281:     cout << "    /-->    ------------->            "<< endl;
marci@281:     cout << "   / /-- v1 <-\\      /---- v3-\\      "<< endl;
marci@281:     cout << "  / |          |    /  /->     \\     "<< endl;
marci@281:     cout << " /  |          |   /  |    ^    \\  "<< endl;
marci@281:     cout << "s   |          |  /   |    |     \\->  t "<< endl;
marci@281:     cout << " \\  |          | /    |    |     /->  "<< endl;
marci@281:     cout << "  \\ |       --/ /     |    |    /     "<< endl;
marci@281:     cout << "   \\ \\-> v2 <--/       \\-- v4 -/      "<< endl;
marci@281:     cout << "    \\-->    ------------->         "<< endl;
marci@281:     
marci@281:     cout << "dfs from t ..." << endl;
marci@281:     DfsIterator5< GW, GW::NodeMap<bool> > dfs(gw);
marci@281:     dfs.pushAndSetReached(t);
marci@281:     while (!dfs.finished()) {
marci@281:       ++dfs;
marci@281:       //cout << "edge: ";
marci@281:       if (gw.valid(GW::OutEdgeIt(dfs))) {
marci@281: 	cout << edge_name.get(GW::OutEdgeIt(dfs)) << /*endl*/", " << 
marci@281: 	  node_name.get(gw.aNode(dfs)) << 
marci@281: 	  (dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") << 
marci@281: 	  node_name.get(gw.bNode(dfs)) << 
marci@281: 	  (dfs.isBNodeNewlyReached() ? ": is newly reached." : 
marci@281: 	   ": is not newly reached.");
marci@281:       } else { 
marci@281: 	cout << "invalid" << /*endl*/", " << 
marci@281: 	  node_name.get(dfs.aNode()) << 
marci@281: 	  (dfs.isANodeExamined() ? ": is examined, " : ": is not examined, ") << 
marci@281: 	  
marci@281: 	  "invalid.";
marci@281:       }
marci@281:       cout << endl;
marci@281:     }
marci@281:   }
marci@281: 
marci@281:   return 0;
marci@281: }