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/*
* libpinyin
* Library to deal with pinyin.
*
* Copyright (C) 2011 Peng Wu <alexepico@gmail.com>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef PINYIN_PHRASE2_H
#define PINYIN_PHRASE2_H
#include "novel_types.h"
#include "chewing_key.h"
#include "pinyin_custom2.h"
#include "pinyin_parser2.h"
namespace pinyin{
inline int pinyin_exact_compare2(const ChewingKey * key_lhs,
const ChewingKey * key_rhs,
int phrase_length){
int i;
int result;
/* compare initial */
for (i = 0; i < phrase_length; ++i) {
result = key_lhs[i].m_initial - key_rhs[i].m_initial;
if (0 != result)
return result;
}
/* compare middle and final */
for (i = 0; i < phrase_length; ++i) {
result = key_lhs[i].m_middle - key_rhs[i].m_middle;
if (0 != result)
return result;
result = key_lhs[i].m_final - key_rhs[i].m_final;
if (0 != result)
return result;
}
/* compare tone */
for (i = 0; i < phrase_length; ++i) {
result = key_lhs[i].m_tone - key_rhs[i].m_tone;
if (0 != result)
return result;
}
return 0;
}
inline int pinyin_compare_with_ambiguities2(pinyin_option_t options,
const ChewingKey * key_lhs,
const ChewingKey * key_rhs,
int phrase_length){
int i;
int result;
/* compare initial */
for (i = 0; i < phrase_length; ++i) {
result = pinyin_compare_initial2
(options,
(ChewingInitial)key_lhs[i].m_initial,
(ChewingInitial)key_rhs[i].m_initial);
if (0 != result)
return result;
}
/* compare middle and final */
for (i = 0; i < phrase_length; ++i) {
result = pinyin_compare_middle_and_final2
(options,
(ChewingMiddle)key_lhs[i].m_middle,
(ChewingMiddle)key_rhs[i].m_middle,
(ChewingFinal) key_lhs[i].m_final,
(ChewingFinal) key_rhs[i].m_final);
if (0 != result)
return result;
}
/* compare tone */
for (i = 0; i < phrase_length; ++i) {
result = pinyin_compare_tone2
(options,
(ChewingTone)key_lhs[i].m_tone,
(ChewingTone)key_rhs[i].m_tone);
if (0 != result)
return result;
}
return 0;
}
/* compute pinyin lower bound */
inline void compute_lower_value2(pinyin_option_t options,
ChewingKey * in_keys,
ChewingKey * out_keys,
int phrase_length) {
ChewingKey aKey;
for (int i = 0; i < phrase_length; ++i) {
int k; int sel;
aKey = in_keys[i];
/* compute lower initial */
sel = aKey.m_initial;
for (k = aKey.m_initial - 1; k >= CHEWING_ZERO_INITIAL; --k) {
if (0 != pinyin_compare_initial2
(options, (ChewingInitial)aKey.m_initial, (ChewingInitial)k))
break;
else
sel = k;
}
aKey.m_initial = (ChewingInitial)sel;
/* compute lower middle, skipped as no fuzzy pinyin here.
* if needed in future, still use pinyin_compare_middle_and_final2
* to check lower bound.
*/
/* compute lower final */
sel = aKey.m_final;
for (k = aKey.m_final - 1; k >= CHEWING_ZERO_FINAL; --k) {
if (0 != pinyin_compare_middle_and_final2
(options,
(ChewingMiddle)aKey.m_middle, (ChewingMiddle) aKey.m_middle,
(ChewingFinal)aKey.m_final, (ChewingFinal)k))
break;
else
sel = k;
}
aKey.m_final = (ChewingFinal)sel;
/* compute lower tone */
sel = aKey.m_tone;
for (k = aKey.m_tone - 1; k >= CHEWING_ZERO_TONE; --k) {
if (0 != pinyin_compare_tone2
(options, (ChewingTone)aKey.m_tone, (ChewingTone)k))
break;
else
sel = k;
}
aKey.m_tone = (ChewingTone)sel;
/* save the result */
out_keys[i] = aKey;
}
}
/* compute pinyin upper bound */
inline void compute_upper_value2(pinyin_option_t options,
ChewingKey * in_keys,
ChewingKey * out_keys,
int phrase_length) {
ChewingKey aKey;
for (int i = 0; i < phrase_length; ++i) {
int k; int sel;
aKey = in_keys[i];
/* compute upper initial */
sel = aKey.m_initial;
for (k = aKey.m_initial + 1; k <= CHEWING_LAST_INITIAL; ++k) {
if (0 != pinyin_compare_initial2
(options, (ChewingInitial)aKey.m_initial, (ChewingInitial)k))
break;
else
sel = k;
}
aKey.m_initial = (ChewingInitial)sel;
/* compute upper middle, skipped as no fuzzy pinyin here.
* if needed in future, still use pinyin_compare_middle_and_final2
* to check upper bound.
*/
/* compute upper final */
sel = aKey.m_final;
for (k = aKey.m_final + 1; k <= CHEWING_LAST_FINAL; ++k) {
if (0 != pinyin_compare_middle_and_final2
(options,
(ChewingMiddle)aKey.m_middle, (ChewingMiddle)aKey.m_middle,
(ChewingFinal)aKey.m_final, (ChewingFinal)k))
break;
else
sel = k;
}
aKey.m_final = (ChewingFinal)sel;
/* compute upper tone */
sel = aKey.m_tone;
for (k = aKey.m_tone + 1; k <= CHEWING_LAST_TONE; ++k) {
if (0 != pinyin_compare_tone2
(options, (ChewingTone)aKey.m_tone, (ChewingTone)k))
break;
else
sel = k;
}
aKey.m_tone = (ChewingTone)sel;
/* save the result */
out_keys[i] = aKey;
}
}
template<int phrase_length>
struct PinyinIndexItem2{
phrase_token_t m_token;
ChewingKey m_keys[phrase_length];
public:
PinyinIndexItem2<phrase_length> (ChewingKey * keys, phrase_token_t token) {
memmove(m_keys, keys, sizeof(ChewingKey) * phrase_length);
m_token = token;
}
};
/* for find the element in the phrase array */
template<int phrase_length>
inline int phrase_exact_compare2(const PinyinIndexItem2<phrase_length> &lhs,
const PinyinIndexItem2<phrase_length> &rhs)
{
ChewingKey * keys_lhs = (ChewingKey *) lhs.m_keys;
ChewingKey * keys_rhs = (ChewingKey *) rhs.m_keys;
return pinyin_exact_compare2(keys_lhs, keys_rhs, phrase_length);
}
template<int phrase_length>
inline bool phrase_exact_less_than2(const PinyinIndexItem2<phrase_length> &lhs,
const PinyinIndexItem2<phrase_length> &rhs)
{
return 0 > phrase_exact_compare2<phrase_length>(lhs, rhs);
}
};
#endif
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