The Tor Browser: intl/locale/src/nsCharsetAlias.cpp@925c144e1f1f

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "mozilla/ArrayUtils.h"

     8 #include "nsCharsetAlias.h"

    10 // for NS_ERROR_UCONV_NOCONV

    11 #include "nsCharsetConverterManager.h"

    13 #include "nsUConvPropertySearch.h"

    15 using namespace mozilla;

    17 //

    18 static const char* kAliases[][3] = {

    19 #include "charsetalias.properties.h"

    20 };

    22 //--------------------------------------------------------------

    23 // static

    24 nsresult

    25 nsCharsetAlias::GetPreferredInternal(const nsACString& aAlias,

    26                                      nsACString& oResult)

    27 {

    28    nsAutoCString key(aAlias);

    29    ToLowerCase(key);

    31    return nsUConvPropertySearch::SearchPropertyValue(kAliases,

    32       ArrayLength(kAliases), key, oResult);

    33 }

    35 //--------------------------------------------------------------

    36 // static

    37 nsresult

    38 nsCharsetAlias::GetPreferred(const nsACString& aAlias,

    39                              nsACString& oResult)

    40 {

    41    if (aAlias.IsEmpty()) return NS_ERROR_NULL_POINTER;

    43    nsresult res = GetPreferredInternal(aAlias, oResult);

    44    if (NS_FAILED(res))

    45       return res;

    47    if (nsCharsetConverterManager::IsInternal(oResult))

    48       return NS_ERROR_UCONV_NOCONV;

    50    return res;

    51 }

    53 //--------------------------------------------------------------

    54 // static

    55 nsresult

    56 nsCharsetAlias::Equals(const nsACString& aCharset1,

    57                        const nsACString& aCharset2, bool* oResult)

    58 {

    59    nsresult res = NS_OK;

    61    if(aCharset1.Equals(aCharset2, nsCaseInsensitiveCStringComparator())) {

    62       *oResult = true;

    63       return res;

    64    }

    66    if(aCharset1.IsEmpty() || aCharset2.IsEmpty()) {

    67       *oResult = false;

    68       return res;

    69    }

    71    *oResult = false;

    72    nsAutoCString name1;

    73    res = GetPreferredInternal(aCharset1, name1);

    74    if (NS_FAILED(res))

    75      return res;

    77    nsAutoCString name2;

    78    res = GetPreferredInternal(aCharset2, name2);

    79    if (NS_FAILED(res))

    80      return res;

    82    *oResult = name1.Equals(name2);

    83    return NS_OK;

    84 }

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