Added an important note about matrices.

nrubin29 · Oct 23, 2017 · d57b0fa · d57b0fa
1 parent 2e46eb7
commit d57b0fa
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/ast.py b/ast.py
@@ -24,6 +24,7 @@ def _fixed(self, node):
                 del node.matched[i]
 
         # This flattens rules with a single matched rule.
+        # TODO: Flattening messes up smaller matrices ([1], [1,2], [1|2], etc.).
         if len(node.matched) is 1 and isinstance(node.matched[0], RuleMatch):
             return self._fixed(node.matched[0])
 

diff --git a/common.py b/common.py
@@ -89,8 +89,8 @@ def key_at(self, i):
 rules_map = ImmutableIndexedDict((
     ('asn', ('IDT EQL mat',)),
     ('mat', ('LBR mbd RBR',)),
-    ('mbd', ('mrw PPE mbd',)),
-    ('mrw', ('add CMA mrw',)),
+    ('mbd', ('mrw PPE mbd', 'mrw')),
+    ('mrw', ('add CMA mrw', 'add')),
     ('add', ('mul ADD add',)),
     ('mui', ('pow mul',)),
     ('mul', ('pow MUL mul',)),