lib/dot: rename `exemples` to `examples`

[nit.git] / lib / dot / examples / hello.nit

diff --git a/lib/dot/examples/hello.nit b/lib/dot/examples/hello.nit
new file mode 100644 (file)
index 0000000..645620e
--- /dev/null
+++ b/lib/dot/examples/hello.nit
@@ -0,0 +1,29 @@
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Example from http://www.graphviz.org/content/hello
+
+import dot
+
+var graph = new DotGraph("G", "digraph")
+
+var hello = graph.add_node("hello")
+var world = graph.add_node("world")
+graph.add_edge(hello, world)
+
+if args.is_empty then
+       print graph.to_dot
+else
+       graph.to_dot.write_to_file args.first
+end