# 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, incorporated herein by reference. '''expand expressions into changelog and summaries This extension allows the use of a special syntax in summaries, whichwill be automatically expanded into links or any other arbitraryexpression, much like InterWiki does. A few example patterns (link to bug tracking, etc.) that may be usedin 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 refrom mercurial.hgweb import hgweb_modfrom mercurial import templatefilters, extensionsfrom mercurial.i18n import _ orig_escape = templatefilters.filters["escape"] interhg_table = [] 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):    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) extensions.wrapfunction(hgweb_mod.hgweb, 'refresh', interhg_refresh)