Morphological analyzer SWI-Prolog example.
/* File: Dict_Example.pl -- morphological analyser example
** Author: Sergey Sikorsky
** Contact: sergey_sikorsky@yahoo.com
** Version: 1.01
**
** Copyright (C) Sergey Sikorsky 2000
**
** Dict_Example is free software; you can redistribute it and/or modify it under the
** terms of the GNU Library General Public License as published by the Free
** Software Foundation; either version 2 of the License, or (at your option)
** any later version.
**
** Dict_Example 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 Library General Public License for
** more details.
**
** You should have received a copy of the GNU Library General Public License
** along with this software; if not, write to the Free Software Foundation,
** Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
**
*/
do:-
banner,
load_foreign_library('mdswi.dll'),
prolog_to_os_filename(OsFNameIn, "rus.tst"),
( open(OsFNameIn, read, HandleIn), !
; pr('File not found: ', OsFNameIn), fail ),
(
read_sentence(HandleIn, SentAtr),
SentAtr \= [],
pr('Original sentence: ', SentAtr), nl,
prepare_sentence(SentAtr, L),
pr('Prepared sentence: ', L), nl,
fail
;
close(HandleIn)
).
read_sentence(HandleIn, Result):-
\+ at_end_of_stream(HandleIn),
get0(HandleIn, C),
r_sentence(HandleIn, C, Result).
read_sentence(HandleIn, Result):-
\+ at_end_of_stream(HandleIn),
read_sentence(HandleIn, Result).
r_sentence(HandleIn, CIn, [AWord|RestWords]):-
remove_space(HandleIn, CIn, C),
\+ eos(C, _),
read_token(HandleIn, C, Word, COut), !,
name(AWord, Word),
r_sentence(HandleIn, COut, RestWords).
r_sentence(_, _, []).
read_token(HandleIn, CIn, Token, COut):-
is_rus_char(CIn), !,
read_rus_word(HandleIn, CIn, Token, COut).
read_token(HandleIn, 44, [99, 111, 109, 109, 97], C):- %% 'comma'
\+ at_end_of_stream(HandleIn),
get0(HandleIn, C).
read_rus_word(HandleIn, CIn, [NewC|RestC], COut):-
rus_char(CIn, NewC), !,
get0(HandleIn, C),
read_rus_word(HandleIn, C, RestC, COut).
read_rus_word(_, CIn, [], CIn).
is_rus_char(C):-
between(192, 255, C).
rus_char(C, NewC):-
between(192, 223, C), !,
NewC is C + 32.
rus_char(C, C):-
between(224, 255, C).
eos(46, 46):-!. %% '.'
eos(33, 33):-!. %% '!'
eos(63, 63):-!. %% '?'
eos(-1, 46):-!. %% EOF
sign(44, [99, 111, 109, 109, 97]). %% 'comma'
remove_space(_, CIn, CIn):-
is_rus_char(CIn), !.
remove_space(_, CIn, COut):-
eos(CIn, COut), !.
remove_space(_, 44, 44):- !. %% 'comma'
remove_space(HandleIn, _, COut):-
get0(HandleIn, C),
remove_space(HandleIn, C, COut).
prepare_sentence([], []):-!.
prepare_sentence([comma|T], [comma|ResL]):- !,
prepare_sentence(T, ResL).
%% Morphological dictionary
prepare_sentence([H|T], [wd(H, AtrL, _)|ResL]):-
( morpho_rus(H, AtrL), !
; ( pr("Word not found: ", H), fail)
),
prepare_sentence(T, ResL).
banner:-
write_ln('Russian morphological dictionary demo.'),
write_ln('Author: Sergey Sikorsky.'),
nl.
pr(Str,Term):-
write(Str), writeq(Term),nl.
times.