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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <indexentrysupplier_default.hxx>
21 : #include <localedata.hxx>
22 : #include <i18nutil/unicode.hxx>
23 : #include <com/sun/star/i18n/CollatorOptions.hpp>
24 :
25 : using namespace ::com::sun::star::uno;
26 : using namespace ::com::sun::star::lang;
27 : using namespace ::rtl;
28 :
29 : namespace com { namespace sun { namespace star { namespace i18n {
30 :
31 0 : IndexEntrySupplier_Unicode::IndexEntrySupplier_Unicode(
32 : const com::sun::star::uno::Reference < com::sun::star::uno::XComponentContext >& rxContext ) :
33 0 : IndexEntrySupplier_Common(rxContext)
34 : {
35 0 : implementationName = "com.sun.star.i18n.IndexEntrySupplier_Unicode";
36 0 : index = new Index(rxContext);
37 0 : }
38 :
39 0 : IndexEntrySupplier_Unicode::~IndexEntrySupplier_Unicode()
40 : {
41 0 : delete index;
42 0 : }
43 :
44 0 : sal_Bool SAL_CALL IndexEntrySupplier_Unicode::loadAlgorithm( const lang::Locale& rLocale,
45 : const OUString& rAlgorithm, sal_Int32 collatorOptions ) throw (RuntimeException, std::exception)
46 : {
47 0 : index->init(rLocale, rAlgorithm);
48 0 : return IndexEntrySupplier_Common::loadAlgorithm(rLocale, rAlgorithm, collatorOptions);
49 : }
50 :
51 0 : OUString SAL_CALL IndexEntrySupplier_Unicode::getIndexKey( const OUString& rIndexEntry,
52 : const OUString& rPhoneticEntry, const lang::Locale& rLocale ) throw (RuntimeException, std::exception)
53 : {
54 0 : return index->getIndexDescription(getEntry(rIndexEntry, rPhoneticEntry, rLocale));
55 : }
56 :
57 0 : sal_Int16 SAL_CALL IndexEntrySupplier_Unicode::compareIndexEntry(
58 : const OUString& rIndexEntry1, const OUString& rPhoneticEntry1, const lang::Locale& rLocale1,
59 : const OUString& rIndexEntry2, const OUString& rPhoneticEntry2, const lang::Locale& rLocale2 )
60 : throw (RuntimeException, std::exception)
61 : {
62 : sal_Int16 result =
63 0 : index->getIndexWeight(getEntry(rIndexEntry1, rPhoneticEntry1, rLocale1)) -
64 0 : index->getIndexWeight(getEntry(rIndexEntry2, rPhoneticEntry2, rLocale2));
65 0 : if (result == 0)
66 : return IndexEntrySupplier_Common::compareIndexEntry(
67 : rIndexEntry1, rPhoneticEntry1, rLocale1,
68 0 : rIndexEntry2, rPhoneticEntry2, rLocale2);
69 0 : return result > 0 ? 1 : -1;
70 : }
71 :
72 0 : OUString SAL_CALL IndexEntrySupplier_Unicode::getIndexCharacter( const OUString& rIndexEntry,
73 : const lang::Locale& rLocale, const OUString& rAlgorithm ) throw (RuntimeException, std::exception) {
74 :
75 0 : if (loadAlgorithm( rLocale, rAlgorithm, CollatorOptions::CollatorOptions_IGNORE_CASE_ACCENT))
76 0 : return index->getIndexDescription(rIndexEntry);
77 : else
78 0 : return IndexEntrySupplier_Common::getIndexCharacter(rIndexEntry, rLocale, rAlgorithm);
79 : }
80 :
81 0 : IndexTable::IndexTable()
82 : : start(0)
83 : , end(0)
84 0 : , table(0)
85 : {
86 0 : }
87 :
88 0 : IndexTable::~IndexTable()
89 : {
90 0 : if (table) free(table);
91 0 : }
92 :
93 0 : void IndexTable::init(sal_Unicode start_, sal_Unicode end_, IndexKey *keys, sal_Int16 key_count, Index *index)
94 : {
95 0 : start=start_;
96 0 : end=end_;
97 0 : table = (sal_uInt8*) malloc((end-start+1)*sizeof(sal_uInt8));
98 0 : for (sal_Unicode i = start; i <= end; i++) {
99 : sal_Int16 j;
100 0 : for (j = 0; j < key_count; j++) {
101 0 : if (keys[j].key > 0 && (i == keys[j].key || index->compare(i, keys[j].key) == 0)) {
102 0 : table[i-start] = sal::static_int_cast<sal_uInt8>(j);
103 0 : break;
104 : }
105 : }
106 0 : if (j == key_count)
107 0 : table[i-start] = 0xFF;
108 : }
109 0 : }
110 :
111 0 : Index::Index(const com::sun::star::uno::Reference < com::sun::star::uno::XComponentContext >& rxContext)
112 : : table_count(0)
113 : , key_count(0)
114 0 : , mkey_count(0)
115 : {
116 0 : collator = new CollatorImpl(rxContext);
117 0 : }
118 :
119 0 : Index::~Index()
120 : {
121 0 : delete collator;
122 0 : }
123 :
124 0 : sal_Int16 Index::compare(sal_Unicode c1, sal_Unicode c2)
125 : {
126 0 : return sal::static_int_cast<sal_Int16>( collator->compareString(OUString(&c1, 1), OUString(&c2, 1)) );
127 : }
128 :
129 0 : sal_Int16 Index::getIndexWeight(const OUString& rIndexEntry)
130 : {
131 0 : sal_Int32 startPos=0;
132 0 : if (!skipping_chars.isEmpty())
133 0 : while (skipping_chars.indexOf(rIndexEntry[startPos]) >= 0)
134 0 : startPos++;
135 0 : if (mkey_count > 0) {
136 0 : for (sal_Int16 i = 0; i < mkey_count; i++) {
137 0 : sal_Int32 len = keys[mkeys[i]].mkey.getLength();
138 0 : if (collator->compareSubstring(rIndexEntry, startPos, len,
139 0 : keys[mkeys[i]].mkey, 0, len) == 0)
140 0 : return mkeys[i];
141 : }
142 : }
143 0 : sal_Unicode code = rIndexEntry[startPos];
144 0 : for (sal_Int16 i = 0; i < table_count; i++) {
145 0 : if (tables[i].start <= code && code <= tables[i].end)
146 0 : return tables[i].table[code-tables[i].start];
147 : }
148 0 : return 0xFF;
149 : }
150 :
151 0 : OUString Index::getIndexDescription(const OUString& rIndexEntry)
152 : {
153 0 : sal_Int16 wgt = getIndexWeight(rIndexEntry);
154 0 : if (wgt < MAX_KEYS) {
155 0 : if (!keys[wgt].desc.isEmpty())
156 0 : return keys[wgt].desc;
157 0 : else if (keys[wgt].key > 0)
158 0 : return OUString(&keys[wgt].key, 1);
159 : else
160 0 : return keys[wgt].mkey;
161 : }
162 0 : sal_Int32 nPos=0;
163 0 : sal_uInt32 indexChar=rIndexEntry.iterateCodePoints(&nPos, 0);
164 0 : return OUString(&indexChar, 1);
165 : }
166 :
167 : #define LOCALE_EN lang::Locale(OUString("en"), OUString(), OUString())
168 :
169 0 : void Index::makeIndexKeys(const lang::Locale &rLocale, const OUString &algorithm) throw (RuntimeException)
170 : {
171 0 : OUString keyStr = LocaleDataImpl().getIndexKeysByAlgorithm(rLocale, algorithm);
172 :
173 0 : if (keyStr.isEmpty()) {
174 0 : keyStr = LocaleDataImpl().getIndexKeysByAlgorithm(LOCALE_EN,
175 0 : LocaleDataImpl().getDefaultIndexAlgorithm(LOCALE_EN));
176 0 : if (keyStr.isEmpty())
177 0 : throw RuntimeException();
178 : }
179 :
180 0 : sal_Int16 len = sal::static_int_cast<sal_Int16>( keyStr.getLength() );
181 0 : mkey_count=key_count=0;
182 0 : skipping_chars=OUString();
183 : sal_Int16 i, j;
184 :
185 0 : for (i = 0; i < len && key_count < MAX_KEYS; i++)
186 : {
187 0 : sal_Unicode curr = keyStr[i];
188 0 : sal_Unicode close = ')';
189 :
190 0 : if (unicode::isWhiteSpace(curr))
191 0 : continue;
192 :
193 0 : switch(curr) {
194 : case sal_Unicode('-'):
195 0 : if (key_count > 0 && i + 1 < len ) {
196 0 : for (curr = keyStr[++i]; key_count < MAX_KEYS && keys[key_count-1].key < curr; key_count++) {
197 0 : keys[key_count].key = keys[key_count-1].key+1;
198 0 : keys[key_count].desc = OUString();
199 : }
200 : } else
201 0 : throw RuntimeException();
202 0 : break;
203 : case sal_Unicode('['):
204 0 : for (i++; i < len && keyStr[i] != ']'; i++) {
205 0 : if (unicode::isWhiteSpace(keyStr[i])) {
206 0 : continue;
207 0 : } else if (keyStr[i] == '_') {
208 0 : for (curr=keyStr[i-1]+1; curr <= keyStr[i+1]; curr++)
209 0 : skipping_chars+=OUString(curr);
210 0 : i+=2;
211 : } else {
212 0 : skipping_chars+=OUString(keyStr[i]);
213 : }
214 : }
215 0 : break;
216 : case sal_Unicode('{'):
217 0 : close = '}';
218 : case sal_Unicode('('):
219 0 : if (key_count > 0) {
220 0 : sal_Int16 end = i+1;
221 0 : for (end=i+1; end < len && keyStr[end] != close; end++) ;
222 :
223 0 : if (end >= len) // no found
224 0 : throw RuntimeException();
225 0 : if (close == ')')
226 0 : keys[key_count-1].desc = keyStr.copy(i+1, end-i-1);
227 : else {
228 0 : mkeys[mkey_count++]=key_count;
229 0 : keys[key_count].key = 0;
230 0 : keys[key_count].mkey = keyStr.copy(i+1, end-i-1);
231 0 : keys[key_count++].desc=OUString();
232 : }
233 0 : i=end+1;
234 : } else
235 0 : throw RuntimeException();
236 0 : break;
237 : default:
238 0 : keys[key_count].key = curr;
239 0 : keys[key_count++].desc = OUString();
240 0 : break;
241 : }
242 : }
243 0 : for (i = 0; i < mkey_count; i++) {
244 0 : for (j=i+1; j < mkey_count; j++) {
245 0 : if (keys[mkeys[i]].mkey.getLength() < keys[mkeys[j]].mkey.getLength()) {
246 0 : sal_Int16 k = mkeys[i];
247 0 : mkeys[i] = mkeys[j];
248 0 : mkeys[j] = k;
249 : }
250 : }
251 0 : }
252 0 : }
253 :
254 0 : void Index::init(const lang::Locale &rLocale, const OUString& algorithm) throw (RuntimeException)
255 : {
256 0 : makeIndexKeys(rLocale, algorithm);
257 :
258 0 : Sequence< UnicodeScript > scriptList = LocaleDataImpl().getUnicodeScripts( rLocale );
259 :
260 0 : if (scriptList.getLength() == 0) {
261 0 : scriptList = LocaleDataImpl().getUnicodeScripts(LOCALE_EN);
262 0 : if (scriptList.getLength() == 0)
263 0 : throw RuntimeException();
264 : }
265 :
266 0 : table_count = sal::static_int_cast<sal_Int16>( scriptList.getLength() );
267 0 : if (table_count > MAX_TABLES)
268 0 : throw RuntimeException();
269 :
270 0 : collator->loadCollatorAlgorithm(algorithm, rLocale, CollatorOptions::CollatorOptions_IGNORE_CASE_ACCENT);
271 0 : sal_Int16 j=0;
272 0 : sal_Unicode start = unicode::getUnicodeScriptStart((UnicodeScript)0);
273 0 : sal_Unicode end = unicode::getUnicodeScriptEnd((UnicodeScript)0);
274 0 : for (sal_Int16 i= (scriptList[0] == (UnicodeScript)0) ? 1 : 0; i< scriptList.getLength(); i++) {
275 0 : if (unicode::getUnicodeScriptStart(scriptList[i]) != end+1) {
276 0 : tables[j++].init(start, end, keys, key_count, this);
277 0 : start = unicode::getUnicodeScriptStart(scriptList[i]);
278 : }
279 0 : end = unicode::getUnicodeScriptEnd(scriptList[i]);
280 : }
281 0 : tables[j++].init(start, end, keys, key_count, this);
282 0 : table_count = j;
283 0 : }
284 :
285 : } } } }
286 :
287 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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