--- a/hgext/interhg.py	Sat Mar 01 16:20:15 2014 -0600
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,83 +0,0 @@
-# interhg.py - interhg
-#
-# Copyright 2007 OHASHI Hideya <ohachige@gmail.com>
-#
-# Contributor(s):
-#   Edward Lee <edward.lee@engineering.uiuc.edu>
-#
-# This software may be used and distributed according to the terms of the
-# GNU General Public License version 2 or any later version.
-
-'''expand expressions into changelog and summaries
-
-This extension allows the use of a special syntax in summaries, which
-will be automatically expanded into links or any other arbitrary
-expression, much like InterWiki does.
-
-A few example patterns (link to bug tracking, etc.) that may be used
-in your hgrc::
-
-  [interhg]
-  issues = s!issue(\\d+)!<a href="http://bts/issue\\1">issue\\1</a>!
-  bugzilla = s!((?:bug|b=|(?=#?\\d{4,}))(?:\\s*#?)(\\d+))!<a..=\\2">\\1</a>!i
-  boldify = s!(^|\\s)#(\\d+)\\b! <b>#\\2</b>!
-'''
-
-import re
-from mercurial.hgweb import hgweb_mod
-from mercurial import templatefilters, extensions
-from mercurial.i18n import _
-
-testedwith = 'internal'
-
-interhg_table = []
-
-def uisetup(ui):
-    orig_escape = templatefilters.filters["escape"]
-
-    def interhg_escape(x):
-        escstr = orig_escape(x)
-        for regexp, format in interhg_table:
-            escstr = regexp.sub(format, escstr)
-        return escstr
-
-    templatefilters.filters["escape"] = interhg_escape
-
-def interhg_refresh(orig, self, *args, **kwargs):
-    interhg_table[:] = []
-    for key, pattern in self.repo.ui.configitems('interhg'):
-        # grab the delimiter from the character after the "s"
-        unesc = pattern[1]
-        delim = re.escape(unesc)
-
-        # identify portions of the pattern, taking care to avoid escaped
-        # delimiters. the replace format and flags are optional, but delimiters
-        # are required.
-        match = re.match(r'^s%s(.+)(?:(?<=\\\\)|(?<!\\))%s(.*)%s([ilmsux])*$'
-                         % (delim, delim, delim), pattern)
-        if not match:
-            self.repo.ui.warn(_("interhg: invalid pattern for %s: %s\n")
-                              % (key, pattern))
-            continue
-
-        # we need to unescape the delimiter for regexp and format
-        delim_re = re.compile(r'(?<!\\)\\%s' % delim)
-        regexp = delim_re.sub(unesc, match.group(1))
-        format = delim_re.sub(unesc, match.group(2))
-
-        # the pattern allows for 6 regexp flags, so set them if necessary
-        flagin = match.group(3)
-        flags = 0
-        if flagin:
-            for flag in flagin.upper():
-                flags |= re.__dict__[flag]
-
-        try:
-            regexp = re.compile(regexp, flags)
-            interhg_table.append((regexp, format))
-        except re.error:
-            self.repo.ui.warn(_("interhg: invalid regexp for %s: %s\n")
-                              % (key, regexp))
-    return orig(self, *args, **kwargs)
-
-extensions.wrapfunction(hgweb_mod.hgweb, 'refresh', interhg_refresh)

--- a/tests/test-help.t	Sat Mar 01 16:20:15 2014 -0600
+++ b/tests/test-help.t	Sat Mar 01 19:44:14 2014 -0600
@@ -259,7 +259,6 @@
        hgk           browse the repository in a graphical way
        highlight     syntax highlighting for hgweb (requires Pygments)
        histedit      interactive history editing
-       interhg       expand expressions into changelog and summaries
        keyword       expand keywords in tracked files
        largefiles    track large binary files
        mq            manage a stack of patches