Add eatery point and __main__.py

homotopy/__main__.py

@@ -0,0 +1,14 @@
+import argparse
+import homotopy.parser
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Compile a snippet.")
+    parser.add_argument('snippet', nargs=1, type=str, help='a snippet to be compiled')
+
+    snippet = parser.parse_args().snippet[0]
+
+    print(homotopy.parser.parser.parse(snippet).compile())
+
+if __name__ == "__main__":
+    main()

setup.py

@@ -11,5 +11,10 @@
     description='snippet engine',
     install_requires=[
           'ply',
-    ]
+    ],
+    entry_points={
+        'console_scripts': [
+            'homotopy = homotopy.__main__:main'
+        ]
+    }
 )