#! /bin/sh
#
# Copyright (C) 1996-2015 John W. Eaton
#
# This file is part of Octave.
#
# Octave 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.
#
# Octave 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 Octave; see the file COPYING.  If not, see
# <http://www.gnu.org/licenses/>.

if test $# -lt 2; then
  echo "usage: mkbuiltins --header|--source f1 f2 ..." 1>&2
  exit 1
fi

SED=${SED:-'sed'}

make_header=false
make_source=false
case "$1" in
  --header)
    make_header=true
    shift
  ;;
  --source)
    make_source=true
    shift
  ;;
  *)
    echo "mkbuiltins: unrecognized option: $1" 1>&2
    exit 1
  ;;
esac

if $make_header; then

  cat << \EOF
// DO NOT EDIT!  Generated automatically by mkbuiltins.

#if !defined (octave_builtin_defun_decls_h)
#define octave_builtin_defun_decls_h 1

#include "oct-obj.h"

#define DEFUN_DECL(name) \
  extern OCTINTERP_API octave_value_list \
  name (const octave_value_list& = octave_value_list (), int = 0);

EOF

 $SED -n -e 's/ *\(XDEFUN\|XDEFCONSTFUN\)_INTERNAL *( *\([_A-Za-z][_A-Za-z0-9]*\) *,.*$/DEFUN_DECL (F\2);/p; s/^ *XDEFUNX_INTERNAL *( *"\([_A-Za-z][_A-Za-z0-9]*\)" *,.*$/DEFUN_DECL (F\1);/p' "$@"

  cat << \EOF

#undef DEFUN_DECL

#endif

EOF

else

  cat << \EOF
// DO NOT EDIT!  Generated automatically by mkbuiltins.

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "defun.h"
#include "help.h"
#include "oct-obj.h"
#include "variables.h"
#include "builtins.h"

#if defined (quad)
#undef quad
#endif

#if defined (ENABLE_DYNAMIC_LINKING)

#define XDEFUN_DLD_INTERNAL(name, args_name, nargout_name, doc)

#define XDEFUNX_DLD_INTERNAL(name, fname, args_name, nargout_name, doc)

#else

#define XDEFUN_DLD_INTERNAL(name, args_name, nargout_name, doc) \
  XDEFUN_INTERNAL(name, args_name, nargout_name, doc)

#define XDEFUNX_DLD_INTERNAL(name, fname, args_name, nargout_name, doc) \
  XDEFUNX_INTERNAL(name, fname, args_name, nargout_name, doc)

#endif

#define XDEFUN_FILE_NAME(name) \
  std::string file = name;

#define XDEFUN_INTERNAL(name, args_name, nargout_name, doc) \
  extern DECLARE_FUN (name, args_name, nargout_name); \
  install_builtin_function (F ## name, #name, file, doc); \

#define XDEFCONSTFUN_INTERNAL(name, args_name, nargout_name, doc) \
  extern DECLARE_FUN (name, args_name, nargout_name); \
  install_builtin_function (F ## name, #name, file, doc, false); \

#define XDEFUNX_INTERNAL(name, fname, args_name, nargout_name, doc) \
  extern DECLARE_FUNX (fname, args_name, nargout_name); \
  install_builtin_function (fname, name, file, doc); \

#define XDEFALIAS_INTERNAL(alias, name) \
  alias_builtin (#alias, #name);

#define XDEFCONST_INTERNAL(name, defn, doc)

EOF

  for arg
  do
    fcn=`echo "$arg" | $SED 's,.*/,,; s/\.df//; s/-/_/g;'`
    echo "static void"
    echo "install_${fcn}_fcns (void)"
    echo "{"
    cat "$arg"
    echo "}"
    echo ""
  done

  cat << \EOF

void
install_builtins (void)
{
EOF

  for arg
  do
    fcn=`echo "$arg" | $SED 's,.*/,,; s/\.df//; s/-/_/g;'`
    echo "  install_${fcn}_fcns ();"
  done

  cat << \EOF

  install_built_in_docstrings ();
}

EOF

fi

exit 0