[Checkins] SVN: megrok.chameleon/branches/ulif-z3c.pt-less/src/megrok/chameleon/expressions.py Register the TALES translators using grok.

[Uli Fouquet]

Log message for revision 109549:
  Register the TALES translators using grok.
  
  We now have a working Chameleon engine that still supports ``path``,
  ``exists`` and ``provider`` without ``z3c.pt``, but only as regular
  TALES expressions, i.e. as ``tal:content="exists: varname"`` and not
  as Python expressions any more
  (``tal:content="exists('varname')"``). As this is neighter supported
  by z3c.pt anymore, there might be not much loss.
  
  In the long run we might try to get rid of ``path`` and ``exists``
  anyway, as they are expression types one usually needs when no
  appropriate Python expression is available or it is too cumbersome to
  write down the ``python:`` prefix all the time (which is not necessary
  with megrok.chameleon).
  

Changed:
  U   megrok.chameleon/branches/ulif-z3c.pt-less/src/megrok/chameleon/expressions.py

-=-
Modified: megrok.chameleon/branches/ulif-z3c.pt-less/src/megrok/chameleon/expressions.py
===================================================================
--- megrok.chameleon/branches/ulif-z3c.pt-less/src/megrok/chameleon/expressions.py	2010-03-02 01:02:44 UTC (rev 109548)
+++ megrok.chameleon/branches/ulif-z3c.pt-less/src/megrok/chameleon/expressions.py	2010-03-02 01:22:15 UTC (rev 109549)
@@ -1,3 +1,4 @@
+import grokcore.component as grok
 import re
 import namespaces
 import zope.event
@@ -207,9 +208,13 @@
 
         return value
 
-class NotTranslator(expressions.ExpressionTranslator):
-    zope.component.adapts(IExpressionTranslator)
 
+class NotTranslator(expressions.ExpressionTranslator, grok.Adapter):
+    #zope.component.adapts(IExpressionTranslator)
+    grok.name('not')
+    grok.context(IExpressionTranslator)
+    grok.provides(IExpressionTranslator)
+
     recursive = True
 
     def __init__(self, translator):
@@ -289,3 +294,7 @@
 exists_translator = ExistsTranslator()
 path_translator = PathTranslator()
 provider_translator = ProviderTranslator()
+
+grok.global_utility(ExistsTranslator, name='exists')
+grok.global_utility(PathTranslator, name='path')
+grok.global_utility(ProviderTranslator, name='provider')