Changeset 496

Timestamp:

01/02/08 06:01:56 (1 year ago)

Author:

athomas

Message:

Clarify user_context docs with another example.

Files:

• cly/trunk/doc/developers-guide.rst (modified) (1 diff)

cly/trunk/doc/developers-guide.rst

@@ -499 +499 @@
-parameter.
-
+.. code-block:: python
+  from cly import *
+
+  def echo(context):
+    print context
+
+  grammar = Grammar(one=Node(Action(with_user_context=True, callback=echo)))
+
+  my_context = 'hi'
+  parser = Parser(grammar)
+  parser.execute('one', user_context=my_context)
+
+Will print::
+
+  hi
+
+
-One way of applying this is by binding all callbacks to methods on a
-single *class*, then passing an instance of that class as the context: