public Graph load(string filename)
{
bool nodes_finished = false;
Graph g = new Graph();
IEnumerable <string> lines = File.ReadLines(filename);
foreach (string s in lines)
{
string[] parts = s.Split(':');
if (parts[0] == "N")
{
if (nodes_finished)
{
throw new Exception("You can't do this");
}
g.addNode(parts[1]);
}
else if (parts[0] == "E")
{
nodes_finished = true;
string[] parts2 = parts[1].Split('-');
g.addEdge(parts2[0], parts2[1]);
}
}
return(g);
}
public Graph load(string filename)
{
Graph g = new Graph();
IEnumerable <string> lines = File.ReadLines(filename);
var nodes = new List <int>();
var edges = new Dictionary <int, List <int> >();
foreach (var line in lines)
{
var parts = line.Split();
switch (parts[0][0])
{
case 'c':
// Comment
break;
case 'e':
// Edge
int node1 = int.Parse(parts[1]);
int node2 = int.Parse(parts[2]);
if (!nodes.Contains(node1))
{
nodes.Add(node1);
}
if (!nodes.Contains(node2))
{
nodes.Add(node2);
}
if (!edges.ContainsKey(node1))
{
edges.Add(node1, new List <int>());
}
edges[node1].Add(node2);
break;
case 'p':
// Parameter
switch (parts[1])
{
case "edge":
var amountOfNodes = parts[2];
var amountOfEdges = parts[3];
break;
default:
Console.Error.WriteLine("Invalid parameter {0}", parts[1]);
break;
}
break;
default:
Console.Error.WriteLine("Invalid operation {1}", parts[0][0]);
break;
}
}
foreach (var node in nodes)
{
g.addNode(node.ToString());
}
foreach (var edgeList in edges)
{
foreach (var edge in edgeList.Value)
{
g.addEdge(edgeList.Key.ToString(), edge.ToString());
}
}
return(g);
}