# HG changeset patch
# User meillo@marmaro.de
# Date 1180370629 -7200
# Node ID 8d8b41f7c0bc65f61a396ee581d47569bfd22e3b
# Parent  21d9547ef242b6842263732385cd742ef551ec4f
added --help to the cpp edition

diff -r 21d9547ef242 -r 8d8b41f7c0bc graph
Binary file graph has changed
diff -r 21d9547ef242 -r 8d8b41f7c0bc graph.cpp
--- a/graph.cpp	Mon May 28 17:41:28 2007 +0200
+++ b/graph.cpp	Mon May 28 18:43:49 2007 +0200
@@ -148,6 +148,20 @@
           cout << "====================" << endl;
           cout << "by Julian Forster (and a little bit by Markus Schnalke)" << endl;
           cout << "http://progmaschine.de.vu" << endl;
+        } else if (strcmp(argv[1], "--help") == 0) {
+          cout << "Buddylistgrapher 2.0" << endl;
+          cout << "====================" << endl;
+          cout << "usage: " << argv[0] << " <input.txt>" << endl;
+          cout << endl;
+          cout << "The grapher generates output to stdout." << endl;
+          cout << "This output is the input for the graphviz tools." << endl;
+          cout << endl;
+          cout << "You can use it like this:" << endl;
+          cout << argv[0] << " input.txt | dot -Tpng > pic.png" << endl;
+          cout << endl;
+          cout << "ToDo:" << endl;
+          cout << "The program was written for one specific kind of input data," << endl;
+          cout << "so there is still some work to do to use it for general input." << endl;
         } else {
           readGraph(argv[1]); 
         }