# HG changeset patch
# User Sean Farley <sean.michael.farley@gmail.com>
# Date 1395678061 18000
# Node ID 3b96075bffa75bbc1c4986f7085df536324e05d8
# Parent  75745298d99d689df40e1f1842e9caa20d1414f1
maps: add custom __contains__

Similar to dict.__contains__ except we our own matching function, _findkey.

diff --git a/hgsubversion/maps.py b/hgsubversion/maps.py
--- a/hgsubversion/maps.py
+++ b/hgsubversion/maps.py
@@ -94,6 +94,10 @@ class BaseMap(dict):
             key = re.compile(re.escape(key))
         super(BaseMap, self).__setitem__(key, value)
 
+    def __contains__(self, key):
+        '''Similar to dict.get, except we use our own matcher, _findkey.'''
+        return self._findkey(key) is not None
+
     def load(self, path):
         '''Load mappings from a file at the specified path.'''
         path = os.path.expandvars(path)