#!/bin/sh

# libctl: flexible Guile-based control files for scientific software 
# Copyright (C) 1998, 1999, 2000, 2001, 2002, Steven G. Johnson
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
# 
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA  02111-1307, USA.
#
# Steven G. Johnson can be contacted at stevenj@alum.mit.edu.

code=false
header=false
cxx=false
swig=false
output_file=""

while test $# -ge 1; do
    case $1 in
        -o) shift; output_file=$1 ;;
        --cxx) cxx=true ;;
        --code) code=true; header=false; swig=false ;;
        --header) header=true; code=false; swig=false ;;
        --swig) swig=true; header=false; code=false ;;
        *) break;;
    esac
    shift
done

if test $code = true; then
    if test $cxx = true; then
	default_output_file=ctl-io.cpp
    else
	default_output_file=ctl-io.c
    fi
elif test $header = true; then
    if test $cxx = true; then
	default_output_file=ctl-io.hpp
    else
	default_output_file=ctl-io.h
    fi
elif test $swig = true; then
    default_output_file=ctl-io.i
else
#   No output specified.  Backwards compatibility mode (code + header output).
    $0 --header $*
    $0 --code $*
    exit 0
fi

if test "x$output_file" = x; then
    output_file=$default_output_file
fi

spec_file=$1
if test ! -f "$spec_file"; then
    echo "cannot read specification file $spec_file"
    exit 1
fi

if test "$#" = "2"; then
    libctl_dir="$2"
else
    prefix="/usr/pkg"
    datarootdir="${prefix}/share"
    libctl_dir="${datarootdir}/libctl"
fi
case $libctl_dir in .*) libctl_dir=`pwd`/$libctl_dir ;; esac
if test ! -r $libctl_dir/utils/ctl-io.scm; then
    echo "couldn't find $libctl_dir/utils/ctl-io.scm"
    exit 1
fi

ok=yes

###########################################################################

if test $header = true; then

rm -f $output_file

cat > $output_file <<EOF
/* THIS FILE WAS AUTOMATICALLY GENERATED.  DO NOT MODIFY! */
/* generated from the file: $spec_file */

#ifndef CTL_IO_H
#define CTL_IO_H

#include <ctl.h>

EOF

if test $cxx = true; then
    cat >> $output_file <<EOF
#define CXX_CTL_IO 1
namespace ctlio {
EOF
else
    cat >> $output_file <<EOF
#ifdef __cplusplus
extern "C" {
#endif                          /* __cplusplus */
EOF
fi

echo >> $output_file

(guile -l $libctl_dir/base/include.scm \
      -c "(include "'"'"$libctl_dir/base/ctl.scm"'"'") (include "'"'"$libctl_dir/utils/ctl-io.scm"'"'") (set"'!'" cxx $cxx) (include "'"'"$spec_file"'"'") (output-header)" >> $output_file) || ok=no

if test $ok = no; then rm -f $output_file; exit 1; fi

echo >> $output_file

if test $cxx = true; then
    cat >> $output_file <<EOF
} /* namespace */
EOF
else
    cat >> $output_file <<EOF
#ifdef __cplusplus
}                               /* extern "C" */
#endif                          /* __cplusplus */
EOF
fi

cat >> $output_file <<EOF

#endif                          /* CTL_IO_H */

EOF

if test $cxx = false; then
  indent $output_file > /dev/null 2>&1
  rm -f ${output_file}~ ${output_file}.BAK
fi

fi # header = true

###########################################################################

if test $code = true; then

rm -f $output_file

cat > $output_file <<EOF
/* THIS FILE WAS AUTOMATICALLY GENERATED.  DO NOT MODIFY! */
/* generated from the file: $spec_file */

#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "ctl-io.h"

#ifdef CXX_CTL_IO
using namespace ctlio;
#endif

EOF

(guile -l $libctl_dir/base/include.scm \
      -c "(include "'"'"$libctl_dir/base/ctl.scm"'"'") (include "'"'"$libctl_dir/utils/ctl-io.scm"'"'") (set"'!'" cxx $cxx) (include "'"'"$spec_file"'"'") (output-source)" >> $output_file) || ok=no

if test $ok = no; then rm -f $output_file; exit 1; fi

if test $cxx = false; then
  indent $output_file > /dev/null 2>&1
  rm -f ${output_file}~ ${output_file}.BAK
fi

fi # code = true

###########################################################################

if test $swig = true; then

    cat > $output_file <<EOF
/* THIS FILE WAS AUTOMATICALLY GENERATED.  DO NOT MODIFY! */
/* generated from the file: $spec_file */

EOF

    (guile -l $libctl_dir/base/include.scm \
      -c "(include "'"'"$libctl_dir/base/ctl.scm"'"'") (include "'"'"$libctl_dir/utils/ctl-io.scm"'"'") (set"'!'" cxx $cxx) (include "'"'"$spec_file"'"'") (output-swig-header)" >> $output_file) || ok=no

    if test $ok = no; then rm -f $output_file; exit 1; fi

    cat >> $output_file <<EOF

/******* SWIG type-conversion mappings for basic libctl types *******/

%typemap(guile,in) vector3 { \$1 = ctl_convert_vector3_to_c(\$input); }
%typemap(guile,out) vector3 { \$result = ctl_convert_vector3_to_scm(\$1); }

%typemap(guile,in) matrix3x3 { \$1 = ctl_convert_matrix3x3_to_c(\$input); }
%typemap(guile,out) matrix3x3 { \$result = ctl_convert_matrix3x3_to_scm(\$1); }

%typemap(guile,in) cvector3 { \$1 = ctl_convert_cvector3_to_c(\$input); }
%typemap(guile,out) cvector3 { \$result = ctl_convert_cvector3_to_scm(\$1); }

%typemap(guile,in) cmatrix3x3 { \$1 = ctl_convert_cmatrix3x3_to_c(\$input); }
%typemap(guile,out) cmatrix3x3 { \$result = ctl_convert_cmatrix3x3_to_scm(\$1); }

%typemap(guile,in) cnumber { \$1 = ctl_convert_cnumber_to_c(\$input); }
%typemap(guile,out) cnumber { \$result = ctl_convert_cnumber_to_scm(\$1); }

%typemap(guile,in) function { \$1 = ctl_convert_function_to_c(\$input); }
%typemap(guile,out) function { \$result = ctl_convert_function_to_scm(\$1); }

%typemap(guile,in) object { \$1 = ctl_convert_object_to_c(\$input); }
%typemap(guile,out) object { \$result = ctl_convert_object_to_scm(\$1); }

EOF

fi
