# Copyright (C) 2000 by Peter J. Gawthrop

###############################################################
## Version control history
###############################################################
## $Id$
## $Log$



## Revision 1.44  2002/05/01 17:30:56  geraint
## Improved pre-processor directives to better accommodate future alternatives (matlab)
## if necessary.
##
## Revision 1.43  2002/04/30 23:27:00  geraint
## Replaced octave_map with columnvector in simpar.cc. Not quite as descriptive but
## standardises the interfaces somewhat and reduces the dependency on liboctinterp

	    fi
        fi
    done
    echo ${ans}
}


write_DLD_header()
{
    cat <<EOF
#if (CODEGENTARGET == OCTAVEDLD)
#include <octave/oct.h>
#include <octave/toplev.h>
#include <math.h>
#include "useful-functions.hh"
#include "${system}_cr.h"
#include "${system}_def.h"
#include "${system}_sympar.h"

DEFUN_DLD (${system}_${rep}, args, ,
"Usage: [$output] = ${system}_${rep}($args)\nOctave ${rep} representation of system ${system}\nGenerated by MTT on `date`")
{

  octave_value_list retval;
#endif // (CODEGENTARGET == OCTAVEDLD)

EOF
}


map_DLD_inputs ()
{
    s=${1:-""}					# comma separated input list
    if [ -z ${s:-""} ];then return; fi
    printf "#if (CODEGENTARGET == OCTAVEDLD)\n"
    c=`get_field ${s} 0`			# count of inputs
    i=0
    printf "  if (${c} != args.length ()) usage (\"${fun_name} expected ${c} argument(s): ${s}\");\n\n"
    while [ ${i} -lt ${c} ]; do
	j=${i}
	i=`expr ${i} + 1`
	w=`get_field ${s} ${i}`		# argument name
	get_arg_specific_stuff ${w}
	case ${arg_type} in
	    "const double")
		printf "  ${arg_type}\t${w}\t= args(${j}).double_value ();\n"
		;;
	    ColumnVector | Matrix | *)
		printf "  ${arg_type}\t${w}\t= args(${j}).%s ();\n" ${vector_value}
		;;
	esac
    done
    printf "#endif // (CODEGENTARGET == OCTAVEDLD)\n\n"
}	


declare_DLD_outputs ()
{
    s=${1:-""}					# comma separated output list
    c=`get_field ${s} 0`			# count of outputs
    i=0
    while [ ${i} -lt ${c} ]; do
	i=`expr ${i} + 1`
	w=`get_field ${s} ${i}`		# argument name
	get_arg_specific_stuff ${w}
	printf "  static ${arg_type}\t${w}\t${arg_init};\n"
    done
}


return_DLD_outputs ()
{
    s=${1:-""}					# comma separated output list
    c=`get_field ${s} 0`			# count of outputs
    i=0
    cat <<EOF

\/\/ END Code

#if (CODEGENTARGET == OCTAVEDLD)
EOF
    while [ ${i} -lt ${c} ]; do
	j=${i}
	i=`expr ${i} + 1`
	w=`get_field ${s} ${i}`
	printf "  retval (${j})\t= octave_value (${w});\n"
    done
    cat <<EOF
  return (retval);
}
#endif // (CODEGENTARGET == OCTAVEDLD)
EOF
}

write_standalone_header ()
{
    get_arg_specific_stuff ${output}
    cat <<EOF

// Code generation directives
#define STANDALONE 0
#define OCTAVEDLD  1
#if (! defined (CODEGENTARGET))
#define CODEGENTARGET STANDALONE
#endif // (! defined (CODEGENTARGET))

#if (CODEGENTARGET == STANDALONE)
#include <octave/oct.h>
#include "useful-functions.hh"
#include "${system}_cr.h"
#include "${system}_def.h"
#include "${system}_sympar.h"









${arg_type} F${system}_${rep} (
EOF
    if [ -z ${args:-""} ]; then
	printf "\tvoid"
    else
	c=`get_field ${args:-""} 0`
	i=0
	while [ ${i} -lt ${c} ]; do
	    i=`expr ${i} + 1`
	    if [ ${i} -lt ${c} ]; then
		comma=","
	    else
		comma=""
	    fi
	    w=`get_field ${args} ${i}`
	    get_arg_specific_stuff ${w}
	    printf "\t${arg_type}\t&${w}${comma}\n"
	done
    fi

    cat <<EOF
)
{

#endif // (CODEGENTARGET == STANDALONE)
EOF
}






return_standalone_output ()


{































    cat <<EOF
#if (CODEGENTARGET == STANDALONE)










  return ${output};
}
#endif // (CODEGENTARGET == STANDALONE)
EOF
}


# Header information
cat<<EOF
$modeline
$function $declaration
$Lc $declaration
$Lc System $system, representation $rep, language $language; $Rc
$Lc File $1_$rep.$language; $Rc
$Lc Generated by MTT on `date`; $Rc
EOF

if [ -n "${header_only}" ]; then
    exit
else
    get_sizes;
fi

if [ ${language} = "oct" ];then
    write_standalone_header
    write_DLD_header
    map_DLD_inputs ${args}
    undeclared=`get_extra_fields ${args:-"nil"} ${output:-"nil"}`
    declare_DLD_outputs ${undeclared}
    array2constant
    cat <<EOF

// BEGIN Code

EOF
    return_DLD_outputs ${output}
    return_standalone_output
else

if [ -n "$noglobals" ]; then
cat<<EOF

## Horrible fudge to make mtt_m2p work
global ...