/* * libpinyin * Library to deal with pinyin. * * Copyright (C) 2011 Peng Wu * * 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 struct PinyinIndexItem2{ phrase_token_t m_token; ChewingKey m_keys[phrase_length]; public: PinyinIndexItem2 (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 inline int phrase_exact_compare2(const PinyinIndexItem2 &lhs, const PinyinIndexItem2 &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 inline bool phrase_exact_less_than2(const PinyinIndexItem2 &lhs, const PinyinIndexItem2 &rhs) { return 0 > phrase_exact_compare2(lhs, rhs); } }; #endif