src/lua/modify_pkgpath.c

   1 /* libquvi
   2  * Copyright (C) 2012  Toni Gundogdu <legatvs@gmail.com>
   3  *
   4  * This file is part of libquvi <http://quvi.sourceforge.net/>.
   5  *
   6  * This library 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 library 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 library.  If not, see
  18  * <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "config.h"
  22
  23 #include <glib.h>
  24 #include <lua.h>
  25
  26 #include "quvi.h"
  27 /* -- */
  28 #include "_quvi_s.h"
  29
  30 /* Append a new path to the "package.path" string. */
  31 void l_modify_pkgpath(_quvi_t q, const gchar *path)
  32 {
  33   lua_State *l = q->handle.lua;
  34
  35   lua_getglobal(l, "package");
  36   lua_getfield(l, -1, "path");
  37   {
  38     GString *s = g_string_new(lua_tostring(l, -1));
  39     g_string_append_printf(s, ";%s/?.lua", path);
  40
  41     lua_pop(l, 1);
  42     lua_pushstring(l, s->str);
  43     lua_setfield(l, -2, "path");
  44     lua_pop(l, 1);
  45
  46     g_string_free(s, TRUE);
  47     s = NULL;
  48   }
  49 }
  50
  51 /* vim: set ts=2 sw=2 tw=72 expandtab: */