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authorDarrell Anderson <humanreadable@yahoo.com>2013-03-02 15:57:34 -0600
committerDarrell Anderson <humanreadable@yahoo.com>2013-03-02 15:57:34 -0600
commit7c0b0c9dc9fcbe9c198925bdc7ee18ac6be49f4f (patch)
treec76702a7f6310fbe9d437e347535422e836e94e9 /khtml/misc/guess_ja.h
parenta2a38be7600e2a2c2b49c66902d912ca036a2c0f (diff)
parent27bbee9a5f9dcda53d8eb23863ee670ad1360e41 (diff)
downloadtdelibs-7c0b0c9dc9fcbe9c198925bdc7ee18ac6be49f4f.tar.gz
tdelibs-7c0b0c9dc9fcbe9c198925bdc7ee18ac6be49f4f.zip
Merge branch 'master' of http://scm.trinitydesktop.org/scm/git/tdelibs
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-/*
- * This file is part of the KDE libraries
- *
- * Copyright (c) 2000-2003 Shiro Kawai, All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the authors nor the names of its contributors
- * may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-/*
- * original code is here.
- * http://cvs.sourceforge.net/viewcvs.py/gauche/Gauche/ext/charconv/guess.c?view=markup
- */
-#ifndef GUESS_JA_H
-#define GUESS_JA_H
-
-namespace khtml {
- class guess_arc {
- public:
- unsigned int next; /* next state */
- double score; /* score */
- };
-}
-
-using namespace khtml;
-
-typedef signed char dfa_table[256];
-
-/* DFA tables declared in guess_ja.cpp */
-extern const dfa_table guess_eucj_st[];
-extern guess_arc guess_eucj_ar[7];
-extern const dfa_table guess_sjis_st[];
-extern guess_arc guess_sjis_ar[6];
-extern const dfa_table guess_utf8_st[];
-extern guess_arc guess_utf8_ar[11];
-
-namespace khtml {
-
- class guess_dfa {
- public:
- const dfa_table *states;
- const guess_arc *arcs;
- int state;
- double score;
-
- guess_dfa (const dfa_table stable[], const guess_arc *atable) :
- states(stable), arcs(atable)
- {
- state = 0;
- score = 1.0;
- }
- };
-
- class JapaneseCode
- {
- public:
- enum Type {ASCII, JIS, EUC, SJIS, UNICODE, UTF8 };
- enum Type guess_jp(const char* buf, int buflen);
-
- JapaneseCode () {
- eucj = new guess_dfa(guess_eucj_st, guess_eucj_ar);
- sjis = new guess_dfa(guess_sjis_st, guess_sjis_ar);
- utf8 = new guess_dfa(guess_utf8_st, guess_utf8_ar);
- last_JIS_escape = false;
- }
-
- ~JapaneseCode () {
- if (eucj) delete eucj;
- if (sjis) delete sjis;
- if (utf8) delete utf8;
- }
-
- protected:
- guess_dfa *eucj;
- guess_dfa *sjis;
- guess_dfa *utf8;
-
- bool last_JIS_escape;
- };
-}
-
-#define DFA_NEXT(dfa, ch) \
- do { \
- int arc__; \
- if (dfa->state >= 0) { \
- arc__ = dfa->states[dfa->state][ch]; \
- if (arc__ < 0) { \
- dfa->state = -1; \
- } else { \
- dfa->state = dfa->arcs[arc__].next; \
- dfa->score *= dfa->arcs[arc__].score; \
- } \
- } \
- } while (0)
-
-#define DFA_ALIVE(dfa) (dfa->state >= 0)
-
-#endif /* GUESS_JA_H */