| /************************************************************** |
| * |
| * 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; |
| } |
| |
| } } } } |
| |
