summaryrefslogtreecommitdiff
path: root/sc/source/core/tool/cellkeytranslator.cxx
blob: 2c7bb57f54df772bc9b3ed96542268935a80e7ef (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   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 .
 */

#include "cellkeytranslator.hxx"
#include <comphelper/processfactory.hxx>
#include <i18nlangtag/mslangid.hxx>
#include <i18nlangtag/lang.h>
#include <rtl/ustring.hxx>

#include <com/sun/star/i18n/TransliterationModules.hpp>

using ::com::sun::star::lang::Locale;
using ::com::sun::star::uno::Sequence;
using ::std::list;
using ::boost::unordered_map;

using namespace ::com::sun::star;

enum LocaleMatch
{
    LOCALE_MATCH_NONE = 0,
    LOCALE_MATCH_LANG,
    LOCALE_MATCH_LANG_SCRIPT,
    LOCALE_MATCH_LANG_SCRIPT_COUNTRY,
    LOCALE_MATCH_ALL
};

static LocaleMatch lclLocaleCompare(const Locale& rLocale1, const LanguageTag& rLanguageTag2)
{
    LocaleMatch eMatchLevel = LOCALE_MATCH_NONE;
    LanguageTag aLanguageTag1( rLocale1);

    if ( aLanguageTag1.getLanguage() == rLanguageTag2.getLanguage() )
        eMatchLevel = LOCALE_MATCH_LANG;
    else
        return eMatchLevel;

    if ( aLanguageTag1.getScript() == rLanguageTag2.getScript() )
        eMatchLevel = LOCALE_MATCH_LANG_SCRIPT;
    else
        return eMatchLevel;

    if ( aLanguageTag1.getCountry() == rLanguageTag2.getCountry() )
        eMatchLevel = LOCALE_MATCH_LANG_SCRIPT_COUNTRY;
    else
        return eMatchLevel;

    if (aLanguageTag1 == rLanguageTag2)
        return LOCALE_MATCH_ALL;

    return eMatchLevel;
}

ScCellKeyword::ScCellKeyword(const sal_Char* pName, OpCode eOpCode, const Locale& rLocale) :
    mpName(pName),
    meOpCode(eOpCode),
    mrLocale(rLocale)
{
}

::std::auto_ptr<ScCellKeywordTranslator> ScCellKeywordTranslator::spInstance(NULL);

static void lclMatchKeyword(OUString& rName, const ScCellKeywordHashMap& aMap,
                            OpCode eOpCode = ocNone, const Locale* pLocale = NULL)
{
    ScCellKeywordHashMap::const_iterator itrEnd = aMap.end();
    ScCellKeywordHashMap::const_iterator itr = aMap.find(rName);

    if ( itr == itrEnd || itr->second.empty() )
        // No candidate strings exist.  Bail out.
        return;

    if ( eOpCode == ocNone && !pLocale )
    {
        // Since no locale nor opcode matching is needed, simply return
        // the first item on the list.
        rName = OUString::createFromAscii( itr->second.front().mpName );
        return;
    }

    LanguageTag aLanguageTag( pLocale ? *pLocale : Locale("","",""));
    const sal_Char* aBestMatchName = itr->second.front().mpName;
    LocaleMatch eLocaleMatchLevel = LOCALE_MATCH_NONE;
    bool bOpCodeMatched = false;

    list<ScCellKeyword>::const_iterator itrListEnd = itr->second.end();
    list<ScCellKeyword>::const_iterator itrList = itr->second.begin();
    for ( ; itrList != itrListEnd; ++itrList )
    {
        if ( eOpCode != ocNone && pLocale )
        {
            if ( itrList->meOpCode == eOpCode )
            {
                LocaleMatch eLevel = lclLocaleCompare(itrList->mrLocale, aLanguageTag);
                if ( eLevel == LOCALE_MATCH_ALL )
                {
                    // Name with matching opcode and locale found.
                    rName = OUString::createFromAscii( itrList->mpName );
                    return;
                }
                else if ( eLevel > eLocaleMatchLevel )
                {
                    // Name with a better matching locale.
                    eLocaleMatchLevel = eLevel;
                    aBestMatchName = itrList->mpName;
                }
                else if ( !bOpCodeMatched )
                    // At least the opcode matches.
                    aBestMatchName = itrList->mpName;

                bOpCodeMatched = true;
            }
        }
        else if ( eOpCode != ocNone && !pLocale )
        {
            if ( itrList->meOpCode == eOpCode )
            {
                // Name with a matching opcode preferred.
                rName = OUString::createFromAscii( itrList->mpName );
                return;
            }
        }
        else if ( pLocale )
        {
            LocaleMatch eLevel = lclLocaleCompare(itrList->mrLocale, aLanguageTag);
            if ( eLevel == LOCALE_MATCH_ALL )
            {
                // Name with matching locale preferred.
                rName = OUString::createFromAscii( itrList->mpName );
                return;
            }
            else if ( eLevel > eLocaleMatchLevel )
            {
                // Name with a better matching locale.
                eLocaleMatchLevel = eLevel;
                aBestMatchName = itrList->mpName;
            }
        }
    }

    // No preferred strings found.  Return the best matching name.
    rName = OUString::createFromAscii(aBestMatchName);
}

void ScCellKeywordTranslator::transKeyword(OUString& rName, const Locale* pLocale, OpCode eOpCode)
{
    if ( !spInstance.get() )
        spInstance.reset( new ScCellKeywordTranslator );

    LanguageType eLang = pLocale ? LanguageTag(*pLocale).makeFallback().getLanguageType() : LANGUAGE_SYSTEM;
    Sequence<sal_Int32> aOffsets;
    rName = spInstance->maTransWrapper.transliterate(rName, eLang, 0, rName.getLength(), &aOffsets);
    lclMatchKeyword(rName, spInstance->maStringNameMap, eOpCode, pLocale);
}

ScCellKeywordTranslator::ScCellKeywordTranslator() :
    maTransWrapper( ::comphelper::getProcessComponentContext(),
                    i18n::TransliterationModules_LOWERCASE_UPPERCASE )
{
    init();
}

ScCellKeywordTranslator::~ScCellKeywordTranslator()
{
}

struct TransItem
{
    const sal_Unicode*  from;
    const sal_Char*     to;
    OpCode              func;
};

void ScCellKeywordTranslator::init()
{
    ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );

    // The file below has been autogenerated by sc/workben/celltrans/parse.py.
    // To add new locale keywords, edit sc/workben/celltrans/keywords_utf16.txt
    // and re-run the parse.py script.
    //
    // All keywords must be uppercase, and the mapping must be from the
    // localized keyword to the English keyword.
    //
    // Make sure that the original keyword file (keywords_utf16.txt) is
    // encoded in UCS-2/UTF-16!

    #include "cellkeywords.inl"
}

void ScCellKeywordTranslator::addToMap(const OUString& rKey, const sal_Char* pName, const Locale& rLocale, OpCode eOpCode)
{
    ScCellKeyword aKeyItem( pName, eOpCode, rLocale );

    ScCellKeywordHashMap::iterator itrEnd = maStringNameMap.end();
    ScCellKeywordHashMap::iterator itr = maStringNameMap.find(rKey);

    if ( itr == itrEnd )
    {
        // New keyword.
        list<ScCellKeyword> aList;
        aList.push_back(aKeyItem);
        maStringNameMap.insert( ScCellKeywordHashMap::value_type(rKey, aList) );
    }
    else
        itr->second.push_back(aKeyItem);
}

void ScCellKeywordTranslator::addToMap(const TransItem* pItems, const Locale& rLocale)
{
    for (sal_uInt16 i = 0; pItems[i].from != NULL; ++i)
        addToMap(OUString(pItems[i].from), pItems[i].to, rLocale, pItems[i].func);
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */