share/common/quvi/debug.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 function M.line()  return debug.getinfo(2, 'l').currentline end
  24 function M.short() return debug.getinfo(2, 'S').short_src end
  25 function M.file()  return debug.getinfo(2, 'S').source end
  26 function M.func()  return debug.getinfo(2, 'n').name end
  27
  28 function M.say(...)
  29   local s = os.getenv("LIBQUVI_SCRIPTS_VERBOSE")
  30   if s and #s >0 then
  31     io.stderr:write(string.format('%s\n', string.format(...)))
  32   end
  33 end
  34
  35 --[[
  36 function M.foo()
  37   M.say('%s:%s: foo=%s', M.file(), M.line(), 1)
  38   M.say('bar')
  39 end
  40 M.foo()
  41 ]]--
  42
  43 return M
  44
  45 -- vim: set ts=2 sw=2 tw=72 expandtab: