insert for odict

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10368 221aa14e-8319-0410-a670-987f0aec2ac5

diff --git a/grc/src/utils/__init__.py b/grc/src/utils/__init__.py
index 21af4a8be307828d6d6253a9431859b70cd17b9e..73a2ed562f10ccdbb81baf2317d35da104c0467c 100644 (file)
--- a/grc/src/utils/__init__.py
+++ b/grc/src/utils/__init__.py
@@ -46,6 +46,32 @@ class odict(DictMixin):
                copy_dict._keys = list(self._keys)
                return copy_dict
 
+       def insert_after(self, pos_key, key, val):
+               """
+               Insert the new key, value entry after the entry given by the position key.
+               If the positional key is None, insert at the end.
+               @param pos_key the positional key
+               @param key the key for the new entry
+               @param val the value for the new entry
+               """
+               index = (pos_key is None) and len(self._keys) or self._keys.index(pos_key)
+               assert key not in self._keys
+               self._keys.insert(index+1, key)
+               self._data[key] = val
+
+       def insert_before(self, pos_key, key, val):
+               """
+               Insert the new key, value entry before the entry given by the position key.
+               If the positional key is None, insert at the begining.
+               @param pos_key the positional key
+               @param key the key for the new entry
+               @param val the value for the new entry
+               """
+               index = (pos_key is not None) and self._keys.index(pos_key) or 0 
+               assert key not in self._keys
+               self._keys.insert(index, key)
+               self._data[key] = val
+
 def exists_or_else(d, key, alt):
        if d.has_key(key): return d[key]
        else: return alt