# interhg.py - interhg

#

# Copyright 2007 OHASHI Hideya <ohachige@gmail.com>

#

# This software may be used and distributed according to the terms

# of the GNU General Public License, incorporated herein by reference.

#

# The `interhg' Mercurial extension allows you to change changelog and

# summary text just like InterWiki way.

#

# To enable this extension:

#

#   [extensions]

#   interhg =

#

# This is an example to link to a bug tracking system.

#

#   [interhg]

#   pat1 = s/issue(\d+)/ <a href="http:\/\/bts\/issue\1">issue\1<\/a> /

#

# You can add patterns to use pat2, pat3, ...

# For exapmle.

#

#   pat2 = s/(^|\s)#(\d+)\b/ <b>#\2<\/b> /

import re

from mercurial.hgweb import hgweb_mod

from mercurial import templater

orig_escape = templater.common_filters["escape"]

interhg_table = []

def interhg_escape(x):

    escstr = orig_escape(x)

    for pat in interhg_table:

        regexp = pat[0]

        format = pat[1]

        escstr = regexp.sub(format, escstr)

    return escstr

templater.common_filters["escape"] = interhg_escape

orig_refresh = hgweb_mod.hgweb.refresh

def interhg_refresh(self):

    interhg_table[:] = []

    num = 1

    while True:

        key = 'pat%d' % num

        pat = self.config('interhg', key)

        if pat == None:

            break

        pat = pat[2:-1]

        span = re.search(r'[^\\]/', pat).span()

        regexp = pat[:span[0] + 1]

        format = pat[span[1]:]

        format = re.sub(r'\\/', '/', format)

        regexp = re.compile(regexp)

        interhg_table.append((regexp, format))

        num += 1

    return orig_refresh(self)

hgweb_mod.hgweb.refresh = interhg_refresh