share/lua/util/trim.lua

   1
   2 -- libquvi-scripts
   3 -- Copyright (C) 2010  Toni Gundogdu <legatvs@gmail.com>
   4 --
   5 -- This file is part of libquvi-scripts <http://quvi.sourceforge.net/>.
   6 --
   7 -- This library is free software; you can redistribute it and/or
   8 -- modify it under the terms of the GNU Lesser General Public
   9 -- License as published by the Free Software Foundation; either
  10 -- version 2.1 of the License, or (at your option) any later version.
  11 --
  12 -- This library is distributed in the hope that it will be useful,
  13 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 -- Lesser General Public License for more details.
  16 --
  17 -- You should have received a copy of the GNU Lesser General Public
  18 -- License along with this library; if not, write to the Free Software
  19 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20 -- 02110-1301  USA
  21 --
  22
  23 function trim_fields(video)
  24     for k,v in pairs(video) do
  25         if (type(v) == 'table') then
  26             video[k] = trim_fields(v)
  27         elseif (type(v) == 'string') then
  28             video[k] = trim(v)
  29         end
  30     end
  31     return video
  32 end
  33
  34 function trim(s) -- Based on http://lua-users.org/wiki/StringTrim (trim1)
  35     s = (s:gsub("^%s*(.-)%s*$", "%1"))
  36     return (s:gsub("%s%s+", " "))
  37 end
  38
  39 -- vim: set ts=4 sw=4 tw=72 expandtab: