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341
packages/pyswip/COPYING
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@ -1,340 +1,7 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (c) 2007-2012 Yüce Tekol
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
Preamble
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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46
packages/pyswip/INSTALL
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@ -1,58 +1,58 @@
PySWIP INSTALL
==============
PySWIP requires SWI-Prolog as a shared library since it uses ctypes to access SWI-Prolog/C functions. The shared library is present in Win32 installer, but missing by default from the builds made directly from the source.
PySWIP requires SWI-Prolog as a shared library since it uses ctypes to access SWI-Prolog/C functions. The shared library is present in the Win32 installer, but missing by default from the builds made directly from the source.
Installing on Linux
-------------------
These instructions are tested on a Linux system, but should also work for POSIX systems. Also, you may want to install development packages for readline and libgmp (not required for basics).
These instructions are tested on a Linux system, but should also work for POSIX systems. Also, you may want to install development packages for readline, libncurses, and libgmp.
You need to do the following to install a shared library enabled version of SWI-Prolog. We use version 5.6.34 of SWI-Prolog but any other recent version should work fine. Please make the necessary modifications for your environment.
You need to do the following to install a shared library enabled version of SWI-Prolog. We use version 6.0.2 of SWI-Prolog. Please make the necessary modifications for your environment.
1) Get the source from: http://www.swi-prolog.org/download.html::
1) Get the source from http://www.swi-prolog.org/download/stable:
$ wget http://gollem.science.uva.nl/cgi-bin/nph-download/SWI-Prolog/pl-5.6.34.tar.gz
$ wget http://www.swi-prolog.org/download/stable/src/pl-6.0.2.tar.gz
2) Extract the archive and cd into it::
2) Extract the archive and cd into it:
$ tar xzvf pl-5.6.34.tar.gz
$ cd pl-5.6.34
$ tar xzvf pl-6.0.2.tar.gz
$ cd pl-6.0.2.tar.gz
3) Configure the source with shared library enabled::
3) Configure the source with shared library enabled:
$ ./configure --prefix=/usr --enable-shared
$ ./configure --enable-shared
4) Compile the source::
*** If using a 64-bit system, you may have to compile with the -ggdb flag in order to get PySWIP to work with SWI-Prolog without segfaults (But not necessarily. YMMV.):
$ CFLAGS=-ggdb ./configure --enable-shared
4) Compile the source:
$ make
5) Install the source::
5) Install the source:
$ sudo make install
6) clp library is useful for constraint handling problems, so let's install that too::
6) *** This is perhaps no longer relevant, as it appears clp is installed by default with SWI-Prolog
clp library is useful for constraint handling problems, so let's install that too:
$ cd cd packages/clpqr
$ ./configure --prefix=/usr --enable-shared
$ ./configure --enable-shared
$ make && make install
7) If you are not using Python 2.5 or later, you should install ctypes, or get a new version of Python (apt-get is fine if you're using Ubuntu).
7) Create a soft link to ``libpol.so``::
8) Unpack PySwIP package and install it with, ``python setup.py install``.
$ sudo ln -s /usr/lib/pl-5.6.34/lib/i686-linux/libpl.so.5.6.34 /usr/lib/libpl.so
8) Next, get and install ctypes from: http://starship.python.net/crew/theller/ctypes . Note that you don't need to install it if you are using Python 2.5.
9) Unpack PySwIP package and install it with, ``python setup.py install``.
10) After you install it, you can test it with the following at your Python shell::
9) After you install it, you can test it with the following at your Python shell::
>>> from pyswip import Prolog
>>> prolog = Prolog()
>>> prolog.assertz("father(michael,john)")
If you get an error, such as "libpl (shared) not found." or "FATAL ERROR: Resource not found" be sure you have installed SWI-Prolog as a share library. Check your default library directory (usually ``/usr/lib``) for ``libpl.so``.
If you get an error, such as "libpl (shared) not found." or "FATAL ERROR: Resource not found" be sure you have installed SWI-Prolog as a shared library. Check your default library directory (usually ``/usr/lib``) for ``libswipl.so``.
Installing on Win32

4
packages/pyswip/README
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@ -5,7 +5,7 @@ PySWIP README
0.2.2
:Author:
Yuce Tekol. <http://www.geocities.com/yucetekol>
Yuce Tekol. <yucetekol@gmail.com>
:Project Website:
http://code.google.com/p/pyswip
@ -14,7 +14,7 @@ PySWIP README
Introduction
------------
PySWIP is a GPL'd Python - SWI-Prolog bridge enabling to query SWI-Prolog in your Python programs. It features an (incomplete) SWI-Prolog foreign language interface, a utility class that makes it easy querying with Prolog and also a Pythonic interface.
PySWIP is a Python - SWI-Prolog bridge enabling to query SWI-Prolog in your Python programs. It features an (incomplete) SWI-Prolog foreign language interface, a utility class that makes it easy querying with Prolog and also a Pythonic interface.
Since PySWIP uses SWI-Prolog as a shared library and ctypes to access it, it doesn't require compilation to be installed.

2
packages/pyswip/examples/coins/coins.pl
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@ -1,7 +1,7 @@
% Coins -- 2007 by Yuce Tekol <yucetekol@gmail.com>
:- use_module(library('clpfd')).
:- use_module(library(clpfd)).
coins(S, Count, Total) :-
% A=1, B=5, C=10, D=50, E=100

1
packages/pyswip/examples/create_term.py
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@ -13,6 +13,7 @@ def main():
animal2 = PL_new_functor(PL_new_atom("animal"), 2)
assertz = PL_new_functor(PL_new_atom("assertz"), 1)
PL_put_atom_chars(a1, "gnu")
PL_put_integer(a2, 50)
#PL_cons_functor(t, animal2, a1, a2)

7
packages/pyswip/examples/draughts/puzzle1.pl
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@ -4,7 +4,7 @@
solve(Board) :-
Board = [NW,N,NE,W,E,SW,S,SE],
domains(Board,0..12),
maplist(in_board(0..12), Board),
sum(Board, #=, 12),
NW + N + NE #= 5,
NE + E + SE #= 5,
@ -12,7 +12,4 @@ solve(Board) :-
SW + S + SE #= 5,
label(Board).
domains([],_).
domains([Pos|Board],D) :-
Pos in D,
domains(Board,D).
in_board(D, V) :- V in D.

2
packages/pyswip/examples/knowledgebase.py
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@ -17,9 +17,7 @@ call(assertz(parent("gina", "bob")), module=test2)
print "knowledgebase test1"
X = Variable()
print "ok"
q = Query(parent(X, "bob"), module=test1)
print "ok"
while q.nextSolution():
print X.value
q.closeQuery()

9
packages/pyswip/examples/sendmoremoney/money.pl
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@ -2,11 +2,11 @@
% SEND + MORE = MONEY
% Adapted from: http://en.wikipedia.org/wiki/Constraint_programming
:- use_module(library(clpfd)).
:- use_module(library('bounds')).
sendmore(Digits) :-
Digits = [S,E,N,D,M,O,R,Y], % Create variables
allin(Digits, 0..9), % Associate domains to variables
Digits in 0..9, % Associate domains to variables
S #\= 0, % Constraint: S must be different from 0
M #\= 0,
all_different(Digits), % all the elements must take different values
@ -15,8 +15,3 @@ sendmore(Digits) :-
#= 10000*M + 1000*O + 100*N + 10*E + Y,
label(Digits). % Start the search
allin([],_).
allin([Pos|Board],D) :-
Pos in D,
allin(Board,D).

8
packages/pyswip/examples/sudoku/sudoku.pl
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@ -8,7 +8,7 @@
sudoku(Pss) :-
flatten(Pss, Ps),
allin(Ps, 1..9),
maplist(all_in(1..9), Ps),
maplist(all_different, Pss),
Pss = [R1,R2,R3,R4,R5,R6,R7,R8,R9],
columns(R1, R2, R3, R4, R5, R6, R7, R8, R9),
@ -25,7 +25,5 @@ blocks([X1,X2,X3|R1], [X4,X5,X6|R2], [X7,X8,X9|R3]) :-
all_different([X1,X2,X3,X4,X5,X6,X7,X8,X9]),
blocks(R1, R2, R3).
allin([],_).
allin([Pos|Board],D) :-
Pos in D,
allin(Board,D).
all_in(D, Pos) :-
Pos in D.

2
packages/pyswip/pyswip/__init__.py
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@ -18,7 +18,7 @@
# MA 02110-1301, USA.
# PySWIP version
__VERSION__ = "0.2.2b"
__VERSION__ = "0.2.2"
from pyswip.prolog import Prolog
from pyswip.easy import *

292
packages/pyswip/pyswip/core.py
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@ -1,7 +1,9 @@
# -*- coding: utf-8 -*-
# pyswip -- Python SWI-Prolog bridge
# (c) 2006-2007 Yüce TEKOL
# (c) 2010-2011 Manuel ROTTER
# 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
@ -17,35 +19,184 @@
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
import sys
try:
import os
import warnings
from subprocess import Popen, PIPE
from ctypes import *
except ImportError:
print>>sys.stderr, "A required module: 'ctypes' not found."
sys.exit(1)
from ctypes.util import find_library
try:
if sys.platform[:3] == "win":
# we're on windows
_lib = CDLL("yap.dll")
elif sys.platform[:3] == "dar":
# we're on Mac OS
_lib = CDLL("libYap.dylib")
else:
# UNIX-like
try:
_lib = CDLL("libYap.so")
except IndexError:
# let's try the cwd
_lib = CDLL("./libYap.so")
def _fixWindowsPath(dll):
"""
When the path to the DLL is not in Windows search path, Windows will not be
able to find other DLLs on the same directory, so we have to add it to the
path. This function takes care of it.
:param dll: File name of the DLL
:type dll: string
"""
if sys.platform[:3] != 'win':
return # Nothing to do here
pathToDll = os.path.dirname(dll)
currentWindowsPath = os.getenv('PATH')
if pathToDll not in currentWindowsPath:
# We will prepend the path, to avoid conflicts between DLLs
newPath = pathToDll + ';' + currentWindowsPath
os.putenv('PATH', newPath)
def _findYap():
"""
This function makes a big effort to find the path to the SWI-Prolog shared
library. Since this is both OS dependent and installation dependent, we may
not aways succeed. If we do, we return a name/path that can be used by
CDLL(). Otherwise we raise an exception.
:return: Name or path to the library that can be used by CDLL
:rtype: String
:raises ImportError: If we cannot guess the name of the library
"""
# No matter what the platform is, the first try should alway be
# find_library.
path = find_library('Yap') # or find_library('swipl') or find_library('pl')
if path is not None:
return path
# Now begins the guesswork
platform = sys.platform[:3]
if platform == 'win': # In Windows, we have the default installer path and
# the registry to look
dllName = 'yap.dll'
# First try: check the usual installation path (this is faster but
# hardcoded)
programFiles = os.getenv('ProgramFiles')
path = os.path.join(programFiles, r'pl\bin', dllName)
if os.path.exists(path):
return path
# Second try: use reg.exe to find the installation path in the registry
# (reg should be installed in all Windows XPs)
try:
cmd = Popen(['reg', 'query',
r'HKEY_LOCAL_MACHINE\Software\SWI\Prolog',
'/v', 'home'], stdout=PIPE)
ret = cmd.communicate()
# Result is like:
# ! REG.EXE VERSION 3.0
#
# HKEY_LOCAL_MACHINE\Software\SWI\Prolog
# home REG_SZ C:\Program Files\pl
# (Note: spaces are \t in the output)
ret = ret[0].splitlines()
ret = [line for line in ret if len(line) > 0]
data = ret[-1].split('\t')
path = data[-1]
path = os.path.join(path, 'bin', dllName)
if os.path.exists(path):
return path
except OSError:
print>>sys.stderr, "libYap (shared) not found. Possible reasons:"
print>>sys.stderr, "1) YAP has not been installed as a shared library, use --with-java)"
print>>sys.stderr, "1) set LD_LIBRARY_PATH=/usr/local/lib or somewhere elser where libYap.so can be found"
sys.exit(1)
# reg.exe not found? Weird...
pass
# Last try: maybe it is in the current dir
if os.path.exists(dllName):
return dllName
elif platform == 'lin':
# In Linux we will try some hardcoded paths. find_library will have
# already done almost all we can
paths = ['/lib', '/usr/lib', '/usr/local/lib', '.', './lib']
name = 'libYap.so' #, 'libswipl.so', 'libpl.so']
for path in paths:
path = os.path.join(path, name)
if os.path.exists(path):
return path
spaths=os.getenv('LD_LIBRARY_DIR')
if (spaths):
paths = spaths.split(':')
for path in paths:
path = os.path.join(path, name)
if os.path.exists(path):
return path
elif platform == "dar": # Help with MacOS is welcome!!
paths = ['.', './lib']
names = ['libYap.dylib'] #, 'libswipl.dylib', 'libpl.dylib']
for name in names:
for path in paths:
path = os.path.join(path, name)
if os.path.exists(path):
return path
# unix in general
path=os.getenv('YAPLIBDIR')
path = os.path.join(path, name)
if os.path.exists(path):
return path
# Last resource: see if executable is on the path
try: # try to get library path from swipl executable.
cmd = Popen(['yap', '-dump-runtime-variables'], stdout=PIPE)
ret = cmd.communicate()
# Parse the output into a dictionary
ret = ret[0].replace(';', '').splitlines()
ret = [line.split('=', 1) for line in ret]
rtvars = dict((name, value[1:-1]) for name, value in ret)
if rtvars['PLSHARED'] == 'yes':
# determine platform specific path
if platform in ("win", "cyg"):
dllName = rtvars['PLLIB'][:-4] + '.' + rtvars['PLSOEXT']
path = os.path.join(rtvars['PLBASE'],
'bin')
else: # assume UNIX-like
dllName = 'lib' + rtvars['PLLIB'][2:] + '.' + rtvars['PLSOEXT']
path = os.path.join(rtvars['PLBASE'],
'lib',
rtvars['PLARCH'])
fullName = os.path.join(path, dllName)
if os.path.exists(fullName):
return fullName
# If it does not exist, search for a name like dllName in path
files = os.listdir(path)
for f in files:
if dllName in f:
fullName = os.path.join(path, f)
return fullName
else: # PLSHARED="no"
raise ImportError('SWI-Prolog is not installed as a shared library.')
except (OSError, KeyError): # KeyError from accessing rtvars
pass
# This is a catch all raise
raise ImportError('Could not find the SWI-Prolog library in this platform. '
'If you are sure it is installed, please open an issue.')
class c_void(Structure):
_fields_ = [('dummy', c_int)]
c_void_p = POINTER(c_void)
# Load the library
path = _findYap()
_fixWindowsPath(path)
_lib = CDLL(path)
# PySWIP constants
PYSWIP_MAXSTR = 1024
@ -178,13 +329,12 @@ functor_t = c_ulong
PL_atomic_t = c_ulong
foreign_t = c_ulong
pl_wchar_t = c_wchar
atom_t_p = c_void_p
##_lib.PL_initialise(len(sys.argv), _argv)
PL_initialise = _lib.PL_initialise
##PL_initialise.argtypes = [c_int, c_c
PL_initialise.argtypes = [c_int, POINTER(c_char_p)]
PL_open_foreign_frame = _lib.PL_open_foreign_frame
PL_open_foreign_frame.restype = fid_t
@ -210,6 +360,9 @@ PL_discard_foreign_frame.argtypes = [fid_t]
PL_put_list_chars = _lib.PL_put_list_chars
PL_put_list_chars.argtypes = [term_t, c_char_p]
#PL_put_list_chars = _lib.PL_put_list_nchars
#PL_put_list_nchars.argtypes = [term_t, c_size_t, c_char_p]
#PL_EXPORT(void) PL_register_atom(atom_t a);
PL_register_atom = _lib.PL_register_atom
PL_register_atom.argtypes = [atom_t]
@ -230,27 +383,32 @@ PL_functor_arity.argtypes = [functor_t]
# /* Get C-values from Prolog terms */
#PL_EXPORT(int) PL_get_atom(term_t t, atom_t *a);
PL_get_atom = _lib.PL_get_atom
PL_get_atom.argtypes = [term_t, atom_t_p]
PL_get_atom.argtypes = [term_t, POINTER(atom_t)]
PL_get_atom_ex = _lib.PL_get_atom_ex
PL_get_atom_ex.argtypes = [term_t, POINTER(atom_t)]
#PL_EXPORT(int) PL_get_atom_chars(term_t t, char **a);
PL_get_atom_chars = _lib.PL_get_atom_chars
PL_get_atom_chars.argtypes = [term_t, POINTER(c_char_p)]
PL_get_atom_nchars = _lib.PL_get_atom_nchars
PL_get_atom_nchars.argtypes = [term_t, POINTER(c_size_t), POINTER(c_char_p)]
#PL_EXPORT(int) PL_get_bool(term_t t, int *value);
PL_get_bool = _lib.PL_get_bool
PL_get_bool.argtypes = [term_t, c_int_p]
#PL_EXPORT(int) PL_get_atom_chars(term_t t, char **a);
PL_get_atom_chars = _lib.PL_get_atom_chars # FIXME
PL_get_atom_chars.argtypes = [term_t, POINTER(c_char_p)]
PL_get_bool.argtypes = [term_t, POINTER(c_int)]
##define PL_get_string_chars(t, s, l) PL_get_string(t,s,l)
# /* PL_get_string() is depricated */
#PL_EXPORT(int) PL_get_string(term_t t, char **s, size_t *len);
PL_get_string = _lib.PL_get_string_chars
PL_get_string.argtypes = [term_t, POINTER(c_char_p), c_int_p]
PL_get_string_chars = PL_get_string
PL_get_string_chars.argtypes = [term_t, POINTER(c_char_p), c_int_p]
#PL_get_string = _lib.PL_get_string
#PL_get_string_chars = PL_get_string_chars
#PL_get_string_chars.argtypes = [term_t, POINTER(c_char_p), c_int_p]
#PL_EXPORT(int) PL_get_chars(term_t t, char **s, unsigned int flags);
PL_get_chars = _lib.PL_get_chars # FIXME:
PL_get_chars = _lib.PL_get_chars
PL_get_chars.argtypes = [term_t, POINTER(c_char_p), c_uint]
#PL_EXPORT(int) PL_get_list_chars(term_t l, char **s,
@ -264,24 +422,28 @@ PL_get_chars.argtypes = [term_t, POINTER(c_char_p), c_uint]
# unsigned int flags);
#PL_EXPORT(int) PL_get_integer(term_t t, int *i);
PL_get_integer = _lib.PL_get_integer
PL_get_integer.argtypes = [term_t, POINTER(c_int)]
PL_get_integer.argtypes = [term_t, c_int_p]
#PL_EXPORT(int) PL_get_long(term_t t, long *i);
PL_get_long = _lib.PL_get_long
PL_get_long.argtypes = [term_t, POINTER(c_long)]
PL_get_long.argtypes = [term_t, c_long_p]
#PL_EXPORT(int) PL_get_pointer(term_t t, void **ptr);
PL_get_pointer = _lib.PL_get_pointer
PL_get_pointer.argtypes = [term_t, POINTER(c_void_p)]
#PL_EXPORT(int) PL_get_float(term_t t, double *f);
PL_get_float = _lib.PL_get_float
PL_get_float.argtypes = [term_t, c_double_p]
#PL_EXPORT(int) PL_get_functor(term_t t, functor_t *f);
PL_get_functor = _lib.PL_get_functor
#PL_get_functor.argtypes = [term_t, c_ulong]
PL_get_functor.argtypes = [term_t, POINTER(functor_t)]
#PL_EXPORT(int) PL_get_name_arity(term_t t, atom_t *name, int *arity);
PL_get_name_arity = _lib.PL_get_name_arity
PL_get_name_arity.argtypes = [term_t, POINTER(atom_t), c_int_p]
PL_get_name_arity.argtypes = [term_t, POINTER(atom_t), POINTER(c_int)]
#PL_EXPORT(int) PL_get_module(term_t t, module_t *module);
#PL_EXPORT(int) PL_get_arg(int index, term_t t, term_t a);
@ -292,18 +454,24 @@ PL_get_arg.argtypes = [c_int, term_t, term_t]
#PL_EXPORT(int) PL_get_head(term_t l, term_t h);
PL_get_head = _lib.PL_get_head
PL_get_head.argtypes = [term_t, term_t]
#PL_EXPORT(int) PL_get_tail(term_t l, term_t t);
PL_get_tail = _lib.PL_get_tail
PL_get_tail.argtypes = [term_t, term_t]
#PL_EXPORT(int) PL_get_nil(term_t l);
PL_get_nil = _lib.PL_get_nil
PL_get_nil.argtypes = [term_t]
#PL_EXPORT(int) PL_get_term_value(term_t t, term_value_t *v);
#PL_EXPORT(char *) PL_quote(int chr, const char *data);
PL_put_atom_chars = _lib.PL_put_atom_chars
PL_put_atom_chars.argtypes = [term_t, c_char_p]
PL_put_atom_nchars = _lib.PL_put_atom_nchars
PL_put_atom_nchars.argtypes = [term_t, c_size_t, c_char_p]
PL_atom_chars = _lib.PL_atom_chars
PL_atom_chars.argtypes = [atom_t]
PL_atom_chars.restype = c_char_p
@ -330,9 +498,6 @@ PL_copy_term_ref.restype = term_t
PL_get_list = _lib.PL_get_list
PL_get_list.argtypes = [term_t, term_t, term_t]
PL_get_chars = _lib.PL_get_chars
PL_get_chars.argtypes = [term_t, POINTER(c_char_p), c_uint]
PL_close_query = _lib.PL_close_query
PL_close_query.argtypes = [qid_t]
@ -344,13 +509,13 @@ PL_halt = _lib.PL_halt
PL_halt.argtypes = [c_int]
PL_unify_integer = _lib.PL_unify_integer
PL_unify_integer.argtypes = [term_t,c_long]
PL_unify_integer.argtypes = [term_t,c_int]
PL_unify = _lib.PL_unify
PL_unify.argtypes = [term_t,term_t]
PL_unify_arg = _lib.PL_unify_arg
PL_unify.argtypes = [c_int,term_t,atom_t]
PL_unify_arg.argtypes = [c_int,term_t,term_t]
# Verify types
@ -410,6 +575,8 @@ PL_is_number.restype = c_int
#PL_EXPORT(void) PL_put_variable(term_t t);
PL_put_variable = _lib.PL_put_variable
PL_put_variable.argtypes = [term_t]
PL_put_variable.restype = None
#PL_EXPORT(void) PL_put_atom(term_t t, atom_t a);
#PL_EXPORT(void) PL_put_atom_chars(term_t t, const char *chars);
#PL_EXPORT(void) PL_put_string_chars(term_t t, const char *chars);
@ -420,27 +587,39 @@ PL_put_variable.argtypes = [term_t]
#PL_EXPORT(void) PL_put_list_nchars(term_t t, size_t l, const char *chars);
#PL_EXPORT(void) PL_put_list_ncodes(term_t t, size_t l, const char *chars);
#PL_EXPORT(void) PL_put_integer(term_t t, long i);
PL_put_integer = _lib.PL_put_integer
PL_put_integer.argtypes = [term_t, c_long]
PL_put_integer.restype = None
#PL_EXPORT(void) PL_put_pointer(term_t t, void *ptr);
#PL_EXPORT(void) PL_put_float(term_t t, double f);
#PL_EXPORT(void) PL_put_functor(term_t t, functor_t functor);
PL_put_functor = _lib.PL_put_functor
PL_put_functor.argtypes = [term_t, functor_t]
PL_put_functor.restype = None
#PL_EXPORT(void) PL_put_list(term_t l);
PL_put_list = _lib.PL_put_list
PL_put_list.argtypes = [term_t]
PL_put_list.restype = None
#PL_EXPORT(void) PL_put_nil(term_t l);
PL_put_nil = _lib.PL_put_nil
PL_put_nil.argtypes = [term_t]
PL_put_nil.restype = None
#PL_EXPORT(void) PL_put_term(term_t t1, term_t t2);
PL_put_term = _lib.PL_put_term
PL_put_term.argtypes = [term_t, term_t]
PL_put_term.restype = None
# /* construct a functor or list-cell */
#PL_EXPORT(void) PL_cons_functor(term_t h, functor_t f, ...);
#class _PL_cons_functor(object):
PL_cons_functor = _lib.PL_cons_functor # FIXME:
#PL_cons_functor = _lib.PL_cons_functor # FIXME:
#PL_cons_functor.argtypes = [term_t, functor_t,
#PL_EXPORT(void) PL_cons_functor_v(term_t h, functor_t fd, term_t a0);
PL_cons_functor_v = _lib.PL_cons_functor_v
@ -449,6 +628,7 @@ PL_cons_functor_v.restype = None
#PL_EXPORT(void) PL_cons_list(term_t l, term_t h, term_t t);
PL_cons_list = _lib.PL_cons_list
PL_cons_list.argtypes = [term_t, term_t, term_t]
#
# term_t PL_exception(qid_t qid)
@ -456,9 +636,12 @@ PL_exception = _lib.PL_exception
PL_exception.argtypes = [qid_t]
PL_exception.restype = term_t
#
#func_t = CFUNCTYPE(c_int)
PL_register_foreign = _lib.PL_register_foreign
PL_register_foreign.argtypes = [c_char_p, c_int, c_void_p, c_int]
PL_register_foreign.restype = None
#
#PL_EXPORT(atom_t) PL_new_atom(const char *s);
@ -483,12 +666,11 @@ PL_record.restype = record_t
#PL_EXPORT(void) PL_recorded(record_t record, term_t term);
PL_recorded = _lib.PL_recorded
PL_recorded.argtypes = [record_t,term_t]
PL_recorded.restype = None
#PL_EXPORT(void) PL_erase(record_t record);
PL_erase = _lib.PL_erase
PL_erase.argtypes = [record_t]
PL_erase.restype = None
#
#PL_EXPORT(char *) PL_record_external(term_t t, size_t *size);
#PL_EXPORT(int) PL_recorded_external(const char *rec, term_t term);
@ -580,16 +762,16 @@ IOSTREAM._fields_.extend([("tee",IOSTREAM),
#PL_EXPORT(IOSTREAM *) Sopen_string(IOSTREAM *s, char *buf, size_t sz, const char *m);
#Sopen_string = _lib.Sopen_string
#Sopen_string.argtypes = [POINTER(IOSTREAM), c_char_p, c_size_t, c_char_p]
#Sopen_string.restype = POINTER(IOSTREAM)
Sopen_string = _lib.Sopen_string
Sopen_string.argtypes = [POINTER(IOSTREAM), c_char_p, c_size_t, c_char_p]
Sopen_string.restype = POINTER(IOSTREAM)
#PL_EXPORT(int) Sclose(IOSTREAM *s);
#Sclose = _lib.Sclose
#Sclose.argtypes = [POINTER(IOSTREAM)]
Sclose = _lib.Sclose
Sclose.argtypes = [POINTER(IOSTREAM)]
#PL_EXPORT(int) PL_unify_stream(term_t t, IOSTREAM *s);
#PL_unify_stream = _lib.PL_unify_stream
#PL_unify_stream.argtypes = [term_t, POINTER(IOSTREAM)]
PL_unify_stream = _lib.PL_unify_stream
PL_unify_stream.argtypes = [term_t, POINTER(IOSTREAM)]

68
packages/pyswip/pyswip/easy.py Normal file → Executable file
View File

@ -40,7 +40,8 @@ class Atom(object):
else:
self.handle = handleOrChars
PL_register_atom(self.handle)
self.chars = c_char_p(PL_atom_chars(self.handle)).value
#self.chars = c_char_p(PL_atom_chars(self.handle)).value
self.chars = PL_atom_chars(self.handle)
def fromTerm(cls, term):
"""Create an atom from a Term or term handle."""
@ -48,7 +49,7 @@ class Atom(object):
term = term.handle
a = atom_t()
if PL_get_atom(term, addressof(a)):
if PL_get_atom(term, byref(a)):
return cls(a.value)
fromTerm = classmethod(fromTerm)
@ -115,7 +116,9 @@ class Variable(object):
else:
raise
if (self.handle == None):
t = PL_new_term_ref()
self.handle = t
fun(self.handle, value)
def get_value(self):
@ -139,7 +142,6 @@ class Variable(object):
#PL_put_variable(term)
self.handle = term
class Functor(object):
__slots__ = "handle","name","arity","args","__value","a0"
func = {}
@ -256,7 +258,7 @@ def getAtomChars(t):
"""If t is an atom, return it as a string, otherwise raise InvalidTypeError.
"""
s = c_char_p()
if PL_get_atom_chars(t, addressof(s)):
if PL_get_atom_chars(t, byref(s)):
return s.value
else:
raise InvalidTypeError("atom")
@ -269,8 +271,8 @@ def getAtom(t):
def getBool(t):
"""If t is of type bool, return it, otherwise raise InvalidTypeError.
"""
b = c_long()
if PL_get_long(t, byref(b)):
b = c_int()
if PL_get_int(t, byref(b)):
return bool(b.value)
else:
raise InvalidTypeError("bool")
@ -278,9 +280,9 @@ def getBool(t):
def getLong(t):
"""If t is of type long, return it, otherwise raise InvalidTypeError.
"""
i = c_long()
if PL_get_long(t, byref(i)):
return i.value
l = c_long()
if PL_get_long(t, byref(l)):
return l.value
else:
raise InvalidTypeError("long")
@ -305,14 +307,22 @@ def getString(t):
else:
raise InvalidTypeError("string")
mappedTerms = {}
def getTerm(t):
global mappedTerms
#print 'mappedTerms', mappedTerms
#if t in mappedTerms:
# return mappedTerms[t]
p = PL_term_type(t)
if p < PL_TERM:
return _getterm_router[p](t)
res = _getterm_router[p](t)
elif PL_is_list(t):
return getList(t)
res = getList(t)
else:
return getFunctor(t)
res = getFunctor(t)
mappedTerms[t] = res
return res
def getList(x):
"""Return t as a list.
@ -339,15 +349,31 @@ _getterm_router = {
PL_TERM:getTerm
}
arities = {}
def _callbackWrapper(arity=1):
return CFUNCTYPE(*([foreign_t] + [term_t]*arity))
global arities
res = arities.get(arity)
if res is None:
res = CFUNCTYPE(*([foreign_t] + [term_t]*arity))
arities[arity] = res
return res
funwraps = {}
def _foreignWrapper(fun):
global funwraps
res = funwraps.get(fun)
if res is None:
def wrapper(*args):
args = [getTerm(arg) for arg in args]
r = fun(*args)
return (r is None) and True or r
return wrapper
res = wrapper
funwraps[fun] = res
return res
cwraps = []
def registerForeign(func, name=None, arity=None, flags=0):
"""Register a Python predicate
@ -358,14 +384,21 @@ def registerForeign(func, name=None, arity=None, flags=0):
``arity``: Arity (number of arguments) of the function. If this value is not
used, ``func.arity`` should exist.
"""
global cwraps
if arity is None:
arity = func.arity
if name is None:
name = func.func_name
return PL_register_foreign(name, arity,
cast(_callbackWrapper(arity)(_foreignWrapper(func)),c_void_p), (flags))
cwrap = _callbackWrapper(arity)
fwrap = _foreignWrapper(func)
fwrap2 = cwrap(fwrap)
cwraps.append(fwrap2)
return PL_register_foreign(name, arity, cast(fwrap2, c_void_p), flags)
# return PL_register_foreign(name, arity,
# _callbackWrapper(arity)(_foreignWrapper(func)), flags)
newTermRef = PL_new_term_ref
@ -416,7 +449,6 @@ class Query(object):
f = Functor.fromTerm(t)
p = PL_pred(f.handle, module)
Query.fid = PL_open_foreign_frame()
Query.qid = PL_open_query(module, flags, p, f.a0)
# def __del__(self):
@ -435,9 +467,7 @@ class Query(object):
def closeQuery():
if Query.qid is not None:
PL_close_query(Query.qid)
PL_discard_foreign_frame(Query.fid)
Query.qid = None
Query.fid = None
closeQuery = staticmethod(closeQuery)

3
packages/pyswip/pyswip/prolog.py
View File

@ -25,10 +25,11 @@ def _initialize():
plargs[0] = "./"
plargs[1] = "-q"
plargs[2] = "-nosignals"
#plargs[2] = "\x00"
PL_initialise(3, plargs)
swipl_fid = PL_open_foreign_frame()
swipl_load = PL_new_term_ref()
PL_chars_to_term("asserta((pyrun(GoalString,BindingList):-atom_codes(A,GoalString),atom_to_term(A,Goal,BindingList),call(Goal))).", swipl_load)
PL_chars_to_term("asserta((pyrun(GoalString,BindingList):-(atom_codes(A,GoalString),atom_to_term(A,Goal,BindingList),call(Goal)))).", swipl_load)
PL_call(swipl_load, None)
PL_discard_foreign_frame(swipl_fid)
_initialize()

2
packages/pyswip/setup.py
View File

@ -12,7 +12,7 @@ setup(name="pyswip",
download_url="http://code.google.com/p/pyswip/downloads/list",
author="Yuce Tekol",
author_email="yucetekol@gmail.com",
description="PySWIP enables querying SWI-Prolog and YAP in your Python programs.",
description="PySWIP enables querying SWI-Prolog in your Python programs.",
long_description="""
PySWIP 0.2.2
============