diff -r 5acf520f2115 -r 67e9fb23a32b hgkw/pretxnkw.py
--- a/hgkw/pretxnkw.py	Thu Dec 21 11:02:21 2006 +0100
+++ b/hgkw/pretxnkw.py	Thu Dec 21 16:00:45 2006 +0100
@@ -1,8 +1,7 @@
+from hgkw import kwutil
 from mercurial.i18n import _
 from mercurial import cmdutil, commands, util
-import os.path, re, sys
-
-hgkeywords = 'Id|Header|Author|Date|Revision|RCSFile|Source'
+import re, sys
 
 def pretxnkw(ui, repo, hooktype, **args):
     '''Collects candidates for keyword expansion on commit
@@ -43,28 +42,15 @@
         return False
 
     user, date = repo.changelog.read(repo.changelog.tip())[1:3]
-    strdate = util.datestr(date=date)
-    shortuser = util.shortuser(user)
-    shortdate = util.datestr(date=date, format=util.defaultdateformats[0])
-                                               # %Y-%m-%d %H:%M:%S
-
-    re_kw = re.compile(r'\$(%s)(: [^$]+? )?\$' % hgkeywords)
+    re_kw = re.compile(r'\$(%s)(: [^$]+? )?\$' % kwutil.hgkeywords)
 
     for f in files:
         data = repo.wfile(f).read()
         if not util.binary(data):
 
             def kwexpand(matchobj):
-                RCSFile = os.path.basename(f)+',v'
-                Source = os.path.join(repo.root, f)+',v'
-                Revision = args['node'][:12]
-                Date = strdate
-                Author = user
-                revdateauth = '%s %s %s' % (Revision, shortdate, shortuser)
-                Header = '%s %s' % (Source, revdateauth)
-                Id = '%s %s' % (RCSFile, revdateauth)
-                return '$%s: %s $' % (
-                        matchobj.group(1), eval(matchobj.group(1)))
+                return kwutil.kwexpand(matchobj,
+                        repo, args['node'][:12], f, date, user)
 
             data, kwct = re_kw.subn(kwexpand, data)
             if kwct: