Index: pyyaml/trunk/lib/yaml/scanner.py
===================================================================
--- pyyaml/trunk/lib/yaml/scanner.py	(revision 222)
+++ pyyaml/trunk/lib/yaml/scanner.py	(revision 328)
@@ -808,5 +808,5 @@
         length = 0
         ch = self.peek(length)
-        while u'0' <= ch <= u'9' or u'A' <= ch <= 'Z' or u'a' <= ch <= 'z'  \
+        while u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z'    \
                 or ch in u'-_':
             length += 1
@@ -847,5 +847,5 @@
         # See the specification for details.
         ch = self.peek()
-        if not (u'0' <= ch <= '9'):
+        if not (u'0' <= ch <= u'9'):
             raise ScannerError("while scanning a directive", start_mark,
                     "expected a digit, but found %r" % ch.encode('utf-8'),
@@ -913,5 +913,5 @@
         start_mark = self.get_mark()
         indicator = self.peek()
-        if indicator == '*':
+        if indicator == u'*':
             name = 'alias'
         else:
@@ -920,5 +920,5 @@
         length = 0
         ch = self.peek(length)
-        while u'0' <= ch <= u'9' or u'A' <= ch <= 'Z' or u'a' <= ch <= 'z'  \
+        while u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z'    \
                 or ch in u'-_':
             length += 1
@@ -1369,5 +1369,5 @@
         ch = self.peek(length)
         if ch != u' ':
-            while u'0' <= ch <= u'9' or u'A' <= ch <= 'Z' or u'a' <= ch <= 'z'  \
+            while u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z'    \
                     or ch in u'-_':
                 length += 1
@@ -1389,5 +1389,5 @@
         length = 0
         ch = self.peek(length)
-        while u'0' <= ch <= u'9' or u'A' <= ch <= 'Z' or u'a' <= ch <= 'z'  \
+        while u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z'    \
                 or ch in u'-;/?:@&=+$,_.!~*\'()[]%':
             if ch == u'%':