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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: indexentrysupplier_default.cxx,v $
*
* $Revision: 1.9 $
*
* last change: $Author: rt $ $Date: 2005-10-17 15:43:54 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
#include <indexentrysupplier_default.hxx>
#include <localedata.hxx>
#include <i18nutil/unicode.hxx>
#include <com/sun/star/i18n/CollatorOptions.hpp>
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::rtl;
namespace com { namespace sun { namespace star { namespace i18n {
IndexEntrySupplier_Unicode::IndexEntrySupplier_Unicode(
const com::sun::star::uno::Reference < com::sun::star::lang::XMultiServiceFactory >& rxMSF ) :
IndexEntrySupplier_Common(rxMSF)
{
implementationName = "com.sun.star.i18n.IndexEntrySupplier_Unicode";
index = new Index(collator);
}
IndexEntrySupplier_Unicode::~IndexEntrySupplier_Unicode()
{
delete index;
}
sal_Bool SAL_CALL IndexEntrySupplier_Unicode::loadAlgorithm( const lang::Locale& rLocale,
const OUString& rAlgorithm, sal_Int32 collatorOptions ) throw (RuntimeException)
{
index->init(rLocale, rAlgorithm);
return IndexEntrySupplier_Common::loadAlgorithm(rLocale, rAlgorithm, collatorOptions);
}
OUString SAL_CALL IndexEntrySupplier_Unicode::getIndexKey( const OUString& rIndexEntry,
const OUString& rPhoneticEntry, const lang::Locale& rLocale ) throw (RuntimeException)
{
return index->getIndexDescription(getEntry(rIndexEntry, rPhoneticEntry, rLocale));
}
sal_Int16 SAL_CALL IndexEntrySupplier_Unicode::compareIndexEntry(
const OUString& rIndexEntry1, const OUString& rPhoneticEntry1, const lang::Locale& rLocale1,
const OUString& rIndexEntry2, const OUString& rPhoneticEntry2, const lang::Locale& rLocale2 )
throw (RuntimeException)
{
sal_Int16 result =
index->getIndexWeight(getEntry(rIndexEntry1, rPhoneticEntry1, rLocale1)) -
index->getIndexWeight(getEntry(rIndexEntry2, rPhoneticEntry2, rLocale2));
if (result == 0)
return IndexEntrySupplier_Common::compareIndexEntry(
rIndexEntry1, rPhoneticEntry1, rLocale1,
rIndexEntry2, rPhoneticEntry2, rLocale2);
return result > 0 ? 1 : -1;
}
OUString SAL_CALL IndexEntrySupplier_Unicode::getIndexCharacter( const OUString& rIndexEntry,
const lang::Locale& rLocale, const OUString& rAlgorithm ) throw (RuntimeException) {
if (loadAlgorithm( rLocale, rAlgorithm, CollatorOptions::CollatorOptions_IGNORE_CASE_ACCENT))
return index->getIndexDescription(rIndexEntry);
else
return IndexEntrySupplier_Common::getIndexCharacter(rIndexEntry, rLocale, rAlgorithm);
}
IndexTable::IndexTable()
{
table = NULL;
}
IndexTable::~IndexTable()
{
if (table) free(table);
}
void IndexTable::init(sal_Unicode start_, sal_Unicode end_, IndexKey *keys, sal_Int16 key_count, Index *index)
{
start=start_;
end=end_;
table = (sal_uInt8*) malloc((end-start+1)*sizeof(sal_uInt8));
for (sal_Unicode i = start; i <= end; i++) {
sal_Int16 j;
for (j = 0; j < key_count; j++) {
if (i == keys[j].key || index->compare(i, keys[j].key) == 0) {
table[i-start] = j;
break;
}
}
if (j == key_count)
table[i-start] = 0xFF;
}
}
Index::Index(CollatorImpl *col)
{
collator = col;
}
sal_Int16 Index::compare(sal_Unicode c1, sal_Unicode c2)
{
return collator->compareString(OUString(&c1, 1), OUString(&c2, 1));
}
sal_Int16 Index::getIndexWeight(const OUString& rIndexEntry)
{
sal_Unicode code = rIndexEntry[0];
for (sal_Int16 i = 0; i < table_count; i++) {
if (tables[i].start <= code && code <= tables[i].end)
return tables[i].table[code-tables[i].start];
}
return 0xFF;
}
OUString Index::getIndexDescription(const OUString& rIndexEntry)
{
sal_Int16 wgt = getIndexWeight(rIndexEntry);
if (wgt < MAX_KEYS) {
if (keys[wgt].desc.getLength())
return keys[wgt].desc;
else
return OUString(&keys[wgt].key, 1);
}
return rIndexEntry.copy(0, 1);
}
#define LOCALE_EN lang::Locale(OUString::createFromAscii("en"), OUString(), OUString())
void Index::makeIndexKeys(const lang::Locale &rLocale, const OUString &algorithm) throw (RuntimeException)
{
OUString keyStr = LocaleData().getIndexKeysByAlgorithm(rLocale, algorithm);
if (!keyStr.getLength()) {
keyStr = LocaleData().getIndexKeysByAlgorithm(LOCALE_EN,
LocaleData().getDefaultIndexAlgorithm(LOCALE_EN));
if (!keyStr)
throw RuntimeException();
}
sal_Int16 j = 0, len = keyStr.getLength();
for (sal_Int16 i = 0; i < len && j < MAX_KEYS; i++)
{
sal_Unicode curr = keyStr[i];
if (unicode::isWhiteSpace(curr))
continue;
switch(curr) {
case sal_Unicode('-'):
if (j > 0 && i + 1 < len ) {
for (curr = keyStr[++i]; j < MAX_KEYS && keys[j-1].key < curr; j++) {
keys[j].key = keys[j-1].key+1;
keys[j].desc = OUString();
}
} else
throw RuntimeException();
break;
case sal_Unicode('('):
if (j > 0) {
sal_Int16 end = i+1;
while (end < len && keyStr[end] != sal_Unicode(')')) end++;
if (end >= len) // no found
throw RuntimeException();
keys[j-1].desc = keyStr.copy(i+1, end-i-1);
i=end+1;
} else
throw RuntimeException();
break;
default:
keys[j].key = curr;
keys[j++].desc = OUString();
break;
}
}
key_count = j;
}
void Index::init(const lang::Locale &rLocale, const OUString& algorithm) throw (RuntimeException)
{
makeIndexKeys(rLocale, algorithm);
Sequence< UnicodeScript > scriptList = LocaleData().getUnicodeScripts( rLocale );
if (scriptList.getLength() == 0) {
scriptList = LocaleData().getUnicodeScripts(LOCALE_EN);
if (scriptList.getLength() == 0)
throw RuntimeException();
}
table_count = scriptList.getLength();
if (table_count > MAX_TABLES)
throw RuntimeException();
collator->loadCollatorAlgorithm(algorithm, rLocale, CollatorOptions::CollatorOptions_IGNORE_CASE_ACCENT);
sal_Int16 j=0;
sal_Unicode start = unicode::getUnicodeScriptStart((UnicodeScript)0);
sal_Unicode end = unicode::getUnicodeScriptEnd((UnicodeScript)0);
for (sal_Int16 i= (scriptList[0] == (UnicodeScript)0) ? 1 : 0; i< scriptList.getLength(); i++) {
if (unicode::getUnicodeScriptStart(scriptList[i]) != end+1) {
tables[j++].init(start, end, keys, key_count, this);
start = unicode::getUnicodeScriptStart(scriptList[i]);
}
end = unicode::getUnicodeScriptEnd(scriptList[i]);
}
tables[j++].init(start, end, keys, key_count, this);
table_count = j;
}
} } } }
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