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#!/usr/bin/env python
#
# $Id: make_interfaces.py,v 1.2 2000/11/21 04:54:32 mrnolta Exp $
#
gnu_licence = """\
# Copyright (C) 2000 Mike Nolta <mrnolta@users.sourceforge.net>
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
"""
import os, re, string, sys
LIBPLOT_VER = sys.argv[1]
LIBPLOT_H = "plot-%s.h" % LIBPLOT_VER # library header file (input)
LIBPLOT_I = "_libplot.i" # swig interface (output)
LIBPLOT_PY = "libplot.py" # python interface (output)
NAME_CMODULE = "_libplot"
NAME_PYMODULE = "libplot"
###############################################################################
HEADER_I = """\
%module """ + NAME_CMODULE + """
%{
#include <plot.h>
%}
/* allows us to pass Python file objects to pl_newpl_r */
%typemap(python,in) FILE * {
if ( $source == Py_None )
{
$target = NULL;
}
else if ( PyFile_Check( $source ) )
{
$target = PyFile_AsFile( $source );
}
else
{
PyErr_SetString( PyExc_TypeError, "not a file" );
return NULL;
}
}
/* we assume you only pass strings to pl_setplparam */
%typemap(python,in) void *value {
if ( !PyString_Check( $source ) )
{
PyErr_SetString( PyExc_TypeError, "not a string" );
return NULL;
}
$target = (void *) PyString_AsString( $source );
}
/* Marker symbols */
enum
{ M_NONE, M_DOT, M_PLUS, M_ASTERISK, M_CIRCLE, M_CROSS,
M_SQUARE, M_TRIANGLE, M_DIAMOND, M_STAR, M_INVERTED_TRIANGLE,
M_STARBURST, M_FANCY_PLUS, M_FANCY_CROSS, M_FANCY_SQUARE,
M_FANCY_DIAMOND, M_FILLED_CIRCLE, M_FILLED_SQUARE, M_FILLED_TRIANGLE,
M_FILLED_DIAMOND, M_FILLED_INVERTED_TRIANGLE, M_FILLED_FANCY_SQUARE,
M_FILLED_FANCY_DIAMOND, M_HALF_FILLED_CIRCLE, M_HALF_FILLED_SQUARE,
M_HALF_FILLED_TRIANGLE, M_HALF_FILLED_DIAMOND,
M_HALF_FILLED_INVERTED_TRIANGLE, M_HALF_FILLED_FANCY_SQUARE,
M_HALF_FILLED_FANCY_DIAMOND, M_OCTAGON, M_FILLED_OCTAGON
};
/* PlotterParams */
extern plPlotterParams * pl_newplparams (void);
extern int pl_deleteplparams (plPlotterParams *plotter_params);
extern plPlotterParams * pl_copyplparams (const plPlotterParams *plotter_params);
extern int pl_setplparam (plPlotterParams *plotter_params, const char *parameter, void *value);
/* Plotter */
extern plPlotter * pl_newpl_r (const char *type, FILE *infile, FILE *outfile, FILE *errfile, const plPlotterParams *plotter_params);
extern int pl_deletepl_r (plPlotter *plotter);
/* Plotter member functions */
"""
###############################################################################
HEADER_PY = """\
#
# libplot.py
#
""" + gnu_licence + """\
from """ + NAME_CMODULE + """ import *
class LibplotError( Exception ):
pass
class Plotter:
def __init__( self, type="X", params=None,
outfile=None, infile=None, errfile=None ):
self.plparams = pl_newplparams()
if params:
for key,value in params.items():
pl_setplparam( self.plparams, key, value )
self.this = pl_newpl_r( type, infile, outfile, errfile, self.plparams )
if self.this < 0:
raise LibplotError( "could not create plotter" )
def __del__( self ):
pl_deletepl_r( self.this )
pl_deleteplparams( self.plparams )
"""
###############################################################################
re_pl_name = re.compile( r"pl_(\w+)_r" )
re_pl_cdef = re.compile( r"(.+)\((.+)\)" )
ignore_functions_list = [ "deletepl", "outfile" ]
def is_plotter_method( cdef ):
word = string.split( cdef )
if len(word) > 2 and (word[0] == "int" or word[0] == "double"):
m = re_pl_name.match( word[1] )
if m:
return m.group(1) not in ignore_functions_list
return 0 # false
def swig_def( cdef ):
return "extern " + cdef
def last_word( str ):
return string.split( str )[-1]
def python_def( cdef ):
m = re_pl_cdef.match( cdef )
cname = last_word( m.group(1) )
pyname = re_pl_name.match( cname ).group(1)
args = []
for x in string.split( m.group(2), "," ):
args.append( last_word(x) )
args = args[1:] # strip off *plotter
pyargs = string.join( ["self"] + args, "," )
cargs = string.join( ["self.this"] + args, "," )
pyargs = string.replace( pyargs, "*", "" )
cargs = string.replace( cargs, "*", "" )
return """
def %s(%s):
return %s(%s)
""" % (pyname, pyargs, cname, cargs)
###############################################################################
def preprocessed( file ):
return os.popen( "gcc -E " + file )
if __name__ == '__main__':
fi = open( LIBPLOT_I, 'w' )
fpy = open( LIBPLOT_PY, 'w' )
fi.write( HEADER_I )
fpy.write( HEADER_PY )
fh = preprocessed( LIBPLOT_H )
for line in fh.readlines():
if is_plotter_method( line ):
fi.write( swig_def(line) )
fpy.write( python_def(line) )
fh.close()
fi.close()
fpy.close()
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