/************************************************************** * * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * *************************************************************/ #include "i18nutil/casefolding.hxx" #include "casefolding_data.h" #include "i18nutil/widthfolding.hxx" using namespace com::sun::star::lang; using namespace com::sun::star::uno; namespace com { namespace sun { namespace star { namespace i18n { static Mapping mapping_03a3[] = {{0, 1, {0x03c2, 0, 0}},{0, 1, {0x03c3, 0, 0}}}; static Mapping mapping_0307[] = {{0, 0, {0, 0, 0}},{0, 1, {0x0307, 0, 0}}}; static Mapping mapping_004a[] = {{0, 2, {0x006a, 0x0307, 0}},{0, 1, {0x006a, 0, 0}}}; static Mapping mapping_012e[] = {{0, 2, {0x012f, 0x0307, 0}},{0, 1, {0x012f, 0, 0}}}; static Mapping mapping_00cc[] = {{0, 3, {0x0069, 0x0307, 0x0300}},{0, 1, {0x00ec, 0, 0}}}; static Mapping mapping_00cd[] = {{0, 3, {0x0069, 0x0307, 0x0301}},{0, 1, {0x00ed, 0, 0}}}; static Mapping mapping_0128[] = {{0, 3, {0x0069, 0x0307, 0x0303}},{0, 1, {0x0129, 0, 0}}}; static Mapping mapping_0049[] = {{0, 2, {0x0069, 0x0307, 0}},{0, 1, {0x0131, 0, 0}},{0, 1, {0x0069, 0, 0}}}; static Mapping mapping_0069[] = {{0, 1, {0x0130, 0, 0}},{0, 1, {0x0049, 0, 0}}}; static Mapping mapping_0130[] = {{0, 1, {0x0069, 0, 0}},{0, 1, {0x0130, 0, 0}}}; #define langIs(lang) (aLocale.Language.compareToAscii(lang) == 0) // only check simple case, there is more complicated case need to be checked. #define type_i(ch) ((ch) == 0x0069 || (ch) == 0x006a) #define cased_letter(ch) (CaseMappingIndex[(ch)>>8] >= 0 && (CaseMappingValue[(CaseMappingIndex[(ch)>>8] << 8) + ((ch)&0xff)].type & CasedLetter)) // for Lithuanian, condition to make explicit dot above when lowercasing capital I's and J's // whenever there are more accents above. #define accent_above(ch) (((ch) >= 0x0300 && (ch) <= 0x0314) || ((ch) >= 0x033D && (ch) <= 0x0344) || (ch) == 0x0346 || ((ch) >= 0x034A && (ch) <= 0x034C)) Mapping& casefolding::getConditionalValue(const sal_Unicode* str, sal_Int32 pos, sal_Int32 len, Locale& aLocale, sal_uInt8 nMappingType) throw (RuntimeException) { switch(str[pos]) { case 0x03a3: // final_sigma (not followed by cased and preceded by cased character) // DOES NOT check ignorable sequence yet (more complicated implementation). return !(pos < len && cased_letter(str[pos+1])) && (pos > 0 && cased_letter(str[pos-1])) ? mapping_03a3[0] : mapping_03a3[1]; case 0x0307: return (((nMappingType == MappingTypeLowerToUpper && langIs("lt")) || (nMappingType == MappingTypeUpperToLower && (langIs("tr") || langIs("az")))) && (pos > 0 && type_i(str[pos-1]))) ? // after_i mapping_0307[0] : mapping_0307[1]; case 0x0130: return (langIs("tr") || langIs("az")) ? mapping_0130[0] : mapping_0130[1]; case 0x0069: return (langIs("tr") || langIs("az")) ? mapping_0069[0] : mapping_0069[1]; case 0x0049: return langIs("lt") && pos > len && accent_above(str[pos+1]) ? mapping_0049[0] : (langIs("tr") || langIs("az")) ? mapping_0049[1] : mapping_0049[2]; case 0x004a: return langIs("lt") && pos > len && accent_above(str[pos+1]) ? mapping_004a[0] : mapping_004a[1]; case 0x012e: return langIs("lt") && pos > len && accent_above(str[pos+1]) ? mapping_012e[0] : mapping_012e[1]; case 0x00cc: return langIs("lt") ? mapping_00cc[0] : mapping_00cc[1]; case 0x00cd: return langIs("lt") ? mapping_00cd[0] : mapping_00cd[1]; case 0x0128: return langIs("lt") ? mapping_0128[0] : mapping_0128[1]; } // Should not come here throw RuntimeException(); } Mapping& casefolding::getValue(const sal_Unicode* str, sal_Int32 pos, sal_Int32 len, Locale& aLocale, sal_uInt8 nMappingType) throw (RuntimeException) { static Mapping dummy = { 0, 1, { 0, 0, 0 } }; sal_Int16 address = CaseMappingIndex[str[pos] >> 8] << 8; dummy.map[0] = str[pos]; if (address >= 0 && (CaseMappingValue[address += (str[pos] & 0xFF)].type & nMappingType)) { sal_uInt8 type = CaseMappingValue[address].type; if (type & ValueTypeNotValue) { if (CaseMappingValue[address].value == 0) return getConditionalValue(str, pos, len, aLocale, nMappingType); else { for (int map = CaseMappingValue[address].value; map < CaseMappingValue[address].value + MaxCaseMappingExtras; map++) { if (CaseMappingExtra[map].type & nMappingType) { if (CaseMappingExtra[map].type & ValueTypeNotValue) return getConditionalValue(str, pos, len, aLocale, nMappingType); else return CaseMappingExtra[map]; } } // Should not come here throw RuntimeException(); } } else dummy.map[0] = CaseMappingValue[address].value; } return dummy; } inline sal_Bool SAL_CALL is_ja_voice_sound_mark(sal_Unicode& current, sal_Unicode next) { sal_Unicode c = 0; if ((next == 0x3099 || next == 0x309a) && ( (c = widthfolding::getCompositionChar(current, next)) != 0 )) current = c; return c != 0; } sal_Unicode casefolding::getNextChar(const sal_Unicode *str, sal_Int32& idx, sal_Int32 len, MappingElement& e, Locale& aLocale, sal_uInt8 nMappingType, TransliterationModules moduleLoaded) throw (RuntimeException) { if( idx >= len ) { e = MappingElement(); return 0; } sal_Unicode c; if (moduleLoaded & TransliterationModules_IGNORE_CASE) { if( e.current >= e.element.nmap ) { e.element = getValue(str, idx++, len, aLocale, nMappingType); e.current = 0; } c = e.element.map[e.current++]; } else { c = *(str + idx++); } if (moduleLoaded & TransliterationModules_IGNORE_KANA) { if ((0x3040 <= c && c <= 0x3094) || (0x309d <= c && c <= 0x309f)) c += 0x60; } // composition: KA + voice-mark --> GA. see halfwidthToFullwidth.cxx for detail if (moduleLoaded & TransliterationModules_IGNORE_WIDTH) { static oneToOneMapping& half2fullTable = widthfolding::gethalf2fullTable(); c = half2fullTable[c]; if (0x3040 <= c && c <= 0x30ff && idx < len && is_ja_voice_sound_mark(c, half2fullTable[*(str + idx)])) idx++; } return c; } } } } }