modules/shadow.c

/* GNU m4 -- A simple macro processor
   Copyright (C) 1999, 2000, 2006, 2007, 2008 Free Software
   Foundation, Inc.

   This file is part of GNU M4.

   GNU M4 is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   GNU M4 is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <config.h>

/* Build using only the exported interfaces, unless NDEBUG is set, in
   which case use private symbols to speed things up as much as possible.  */
#ifndef NDEBUG
#  include <m4/m4module.h>
#else
#  include "m4private.h"
#endif

/* Rename exported symbols for dlpreload()ing.  */
#define m4_builtin_table	shadow_LTX_m4_builtin_table
#define m4_macro_table		shadow_LTX_m4_macro_table

/*	   function	macros	blind	side	minargs	maxargs */
#define builtin_functions			\
  BUILTIN (shadow,	false,	false,	false,	0,	-1 )	\
  BUILTIN (test,	false,	false,	false,	0,	-1 )	\


#define BUILTIN(handler, macros, blind, side, min, max) M4BUILTIN (handler)
  builtin_functions
#undef BUILTIN

m4_builtin m4_builtin_table[] =
{
#define BUILTIN(handler, macros, blind, side, min, max)			\
  M4BUILTIN_ENTRY (handler, #handler, macros, blind, side, min, max)

  builtin_functions
#undef BUILTIN

  { NULL, NULL, 0, 0, 0 },
};

m4_macro m4_macro_table[] =
{
  /* name		text		min	max */
  { "__test__",		"`shadow'",	0,	0 },
  { NULL,		NULL,		0,	0 },
};



M4INIT_HANDLER (shadow)
{
  const char *s = "Shadow module loaded.";
  int refcount = m4_module_refcount (module);

  /* Only display the message on first load.  */
  if (obs && refcount == 1)
    obstack_grow (obs, s, strlen (s));
}



/**
 * shadow()
 **/
M4BUILTIN_HANDLER (shadow)
{
  const char *s = "Shadow::`shadow' called.";
  obstack_grow (obs, s, strlen (s));
}

/**
 * test()
 **/
M4BUILTIN_HANDLER (test)
{
  const char *s = "Shadow::`test' called.";
  obstack_grow (obs, s, strlen (s));
}