Index: /pyyaml/trunk/lib3/yaml/emitter.py
===================================================================
--- /pyyaml/trunk/lib3/yaml/emitter.py	(revision 351)
+++ /pyyaml/trunk/lib3/yaml/emitter.py	(revision 355)
@@ -580,5 +580,7 @@
         handle = None
         suffix = tag
-        for prefix in self.tag_prefixes:
+        prefixes = self.tag_prefixes.keys()
+        prefixes.sort()
+        for prefix in prefixes:
             if tag.startswith(prefix)   \
                     and (prefix == '!' or len(prefix) < len(tag)):
@@ -1024,4 +1026,5 @@
                 if ch is None or ch in ' \n\x85\u2028\u2029':
                     data = text[start:end]
+                    self.column += len(data)
                     if self.encoding:
                         data = data.encode(self.encoding)