MoinMoin: macro/InsertTeasers.py

   1 """
   2     MoinMoin - IncludeTeasers macro
   3 
   4     Copyright (c) 2003 by Th.Fanslau <tfanslau@gmx.de>
   5     All rights reserved, see COPYING for details.
   6 
   7     This macro calls "IncludeTeaser" for a set of Pages that match a certain
   8     regular Expression.
   9 
  10     Usage:
  11         [[IncludeTeasers(pagepattern, max)]]
  12 
  13         pagepattern Pattern of the page(s) to include
  14         max         Number of Top Files to include
  15 
  16     Examples:
  17         [[IncludeTeaser(FooBar)]]
  18            -- includes page FooBar
  19 
  20     $Id$
  21 """
  22 
  23 import re
  24 from MoinMoin import wikiutil
  25 from MoinMoin import config
  26 from MoinMoin.i18n import _
  27 import MoinMoin.macro.IncludeTeaser
  28 
  29 _arg_max = r',\s*(?P<max>\d+)'
  30 _args_re_pattern = r'^(?P<pattern>[^,]+)(%s)?$' % (_arg_max,)
  31 
  32 def execute(macro, text, args_re=re.compile(_args_re_pattern)):
  33     ret = ''
  34 
  35     # parse and check arguments
  36     args = args_re.match(text)
  37     if not args:
  38         return ('<p><strong class="error">%s</strong></p>' % _('Invalid include arguments "%s"!')) % (text,)
  39 
  40     # get the pages
  41     inc_pattern = args.group('pattern')
  42     if args.group('max'):
  43         max = int(args.group('max'))
  44     else:
  45         max = 1
  46 
  47     try:
  48         needle_re = re.compile(inc_pattern, re.IGNORECASE)
  49     except re.error, e:
  50         return ('<p><strong class="error">%s</strong></p>' %
  51             _("ERROR in regex '%s'") % (inc_pattern,), e)
  52 
  53     all_pages = wikiutil.getPageList(config.text_dir)
  54     hits = filter(needle_re.search, all_pages)
  55     hits.sort()
  56     hits.reverse()
  57 
  58     if max > len(hits):
  59         max = len(hits)
  60 
  61     for i in range(0, max):
  62         params = hits[i]
  63         ret = ret + MoinMoin.macro.IncludeTeaser.execute(macro, params)
  64 
  65     # return include text
  66     return ret