share/common/quvi/entity.lua

   1 -- libquvi-scripts
   2 -- Copyright (C) 2012  Toni Gundogdu <legatvs@gmail.com>
   3 --
   4 -- This file is part of libquvi-scripts <http://quvi.sourceforge.net/>.
   5 --
   6 -- This program is free software: you can redistribute it and/or
   7 -- modify it under the terms of the GNU Affero General Public
   8 -- License as published by the Free Software Foundation, either
   9 -- version 3 of the License, or (at your option) any later version.
  10 --
  11 -- This program is distributed in the hope that it will be useful,
  12 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 -- GNU Affero General Public License for more details.
  15 --
  16 -- You should have received a copy of the GNU Affero General
  17 -- Public License along with this program.  If not, see
  18 -- <http://www.gnu.org/licenses/>.
  19 --
  20
  21 local M = {}
  22
  23 local a = {
  24 -- 5 standard entities:
  25   {from='&amp;', to='&'},
  26   {from='&lt;',  to='<'},
  27   {from='&gt;',  to='>'},
  28   {from='&quot;',to='"'},
  29   {from='&apos;',to="'"},
  30 }
  31
  32 -- Standard HTML entities to ASCII.
  33 function M.convert_html(s)
  34   for _,t in pairs(a) do
  35     s = s:gsub(t.from, t.to)
  36   end
  37   -- Numeric HTML entities to UTF8.
  38   local H = require 'quvi/html'
  39   return (s:gsub('&#(%d+);', H.to_utf8))
  40 end
  41
  42 --[[
  43 function M.foo()
  44   local s = 'foo &amp;&quot;bar &#220;&apos;'
  45   print(M.convert_html(s))
  46 end
  47 package.path = package.path .. ';../?.lua'
  48 M.foo()
  49 ]]--
  50
  51 return M
  52
  53 -- vim: set ts=2 sw=2 tw=72 expandtab: