michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "mozilla/ArrayUtils.h"
michael@0: 
michael@0: #include "nsCharsetAlias.h"
michael@0: 
michael@0: // for NS_ERROR_UCONV_NOCONV
michael@0: #include "nsCharsetConverterManager.h"
michael@0: 
michael@0: #include "nsUConvPropertySearch.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: 
michael@0: // 
michael@0: static const char* kAliases[][3] = {
michael@0: #include "charsetalias.properties.h"
michael@0: };
michael@0: 
michael@0: //--------------------------------------------------------------
michael@0: // static
michael@0: nsresult
michael@0: nsCharsetAlias::GetPreferredInternal(const nsACString& aAlias,
michael@0:                                      nsACString& oResult)
michael@0: {
michael@0:    nsAutoCString key(aAlias);
michael@0:    ToLowerCase(key);
michael@0: 
michael@0:    return nsUConvPropertySearch::SearchPropertyValue(kAliases,
michael@0:       ArrayLength(kAliases), key, oResult);
michael@0: }
michael@0: 
michael@0: //--------------------------------------------------------------
michael@0: // static
michael@0: nsresult
michael@0: nsCharsetAlias::GetPreferred(const nsACString& aAlias,
michael@0:                              nsACString& oResult)
michael@0: {
michael@0:    if (aAlias.IsEmpty()) return NS_ERROR_NULL_POINTER;
michael@0: 
michael@0:    nsresult res = GetPreferredInternal(aAlias, oResult);
michael@0:    if (NS_FAILED(res))
michael@0:       return res;
michael@0: 
michael@0:    if (nsCharsetConverterManager::IsInternal(oResult))
michael@0:       return NS_ERROR_UCONV_NOCONV;
michael@0: 
michael@0:    return res;
michael@0: }
michael@0: 
michael@0: //--------------------------------------------------------------
michael@0: // static
michael@0: nsresult
michael@0: nsCharsetAlias::Equals(const nsACString& aCharset1,
michael@0:                        const nsACString& aCharset2, bool* oResult)
michael@0: {
michael@0:    nsresult res = NS_OK;
michael@0: 
michael@0:    if(aCharset1.Equals(aCharset2, nsCaseInsensitiveCStringComparator())) {
michael@0:       *oResult = true;
michael@0:       return res;
michael@0:    }
michael@0: 
michael@0:    if(aCharset1.IsEmpty() || aCharset2.IsEmpty()) {
michael@0:       *oResult = false;
michael@0:       return res;
michael@0:    }
michael@0: 
michael@0:    *oResult = false;
michael@0:    nsAutoCString name1;
michael@0:    res = GetPreferredInternal(aCharset1, name1);
michael@0:    if (NS_FAILED(res))
michael@0:      return res;
michael@0: 
michael@0:    nsAutoCString name2;
michael@0:    res = GetPreferredInternal(aCharset2, name2);
michael@0:    if (NS_FAILED(res))
michael@0:      return res;
michael@0: 
michael@0:    *oResult = name1.Equals(name2);
michael@0:    return NS_OK;
michael@0: }