intl/locale/src/nsCharsetAlias.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/intl/locale/src/nsCharsetAlias.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,84 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "mozilla/ArrayUtils.h"
    1.10 +
    1.11 +#include "nsCharsetAlias.h"
    1.12 +
    1.13 +// for NS_ERROR_UCONV_NOCONV
    1.14 +#include "nsCharsetConverterManager.h"
    1.15 +
    1.16 +#include "nsUConvPropertySearch.h"
    1.17 +
    1.18 +using namespace mozilla;
    1.19 +
    1.20 +// 
    1.21 +static const char* kAliases[][3] = {
    1.22 +#include "charsetalias.properties.h"
    1.23 +};
    1.24 +
    1.25 +//--------------------------------------------------------------
    1.26 +// static
    1.27 +nsresult
    1.28 +nsCharsetAlias::GetPreferredInternal(const nsACString& aAlias,
    1.29 +                                     nsACString& oResult)
    1.30 +{
    1.31 +   nsAutoCString key(aAlias);
    1.32 +   ToLowerCase(key);
    1.33 +
    1.34 +   return nsUConvPropertySearch::SearchPropertyValue(kAliases,
    1.35 +      ArrayLength(kAliases), key, oResult);
    1.36 +}
    1.37 +
    1.38 +//--------------------------------------------------------------
    1.39 +// static
    1.40 +nsresult
    1.41 +nsCharsetAlias::GetPreferred(const nsACString& aAlias,
    1.42 +                             nsACString& oResult)
    1.43 +{
    1.44 +   if (aAlias.IsEmpty()) return NS_ERROR_NULL_POINTER;
    1.45 +
    1.46 +   nsresult res = GetPreferredInternal(aAlias, oResult);
    1.47 +   if (NS_FAILED(res))
    1.48 +      return res;
    1.49 +
    1.50 +   if (nsCharsetConverterManager::IsInternal(oResult))
    1.51 +      return NS_ERROR_UCONV_NOCONV;
    1.52 +
    1.53 +   return res;
    1.54 +}
    1.55 +
    1.56 +//--------------------------------------------------------------
    1.57 +// static
    1.58 +nsresult
    1.59 +nsCharsetAlias::Equals(const nsACString& aCharset1,
    1.60 +                       const nsACString& aCharset2, bool* oResult)
    1.61 +{
    1.62 +   nsresult res = NS_OK;
    1.63 +
    1.64 +   if(aCharset1.Equals(aCharset2, nsCaseInsensitiveCStringComparator())) {
    1.65 +      *oResult = true;
    1.66 +      return res;
    1.67 +   }
    1.68 +
    1.69 +   if(aCharset1.IsEmpty() || aCharset2.IsEmpty()) {
    1.70 +      *oResult = false;
    1.71 +      return res;
    1.72 +   }
    1.73 +
    1.74 +   *oResult = false;
    1.75 +   nsAutoCString name1;
    1.76 +   res = GetPreferredInternal(aCharset1, name1);
    1.77 +   if (NS_FAILED(res))
    1.78 +     return res;
    1.79 +
    1.80 +   nsAutoCString name2;
    1.81 +   res = GetPreferredInternal(aCharset2, name2);
    1.82 +   if (NS_FAILED(res))
    1.83 +     return res;
    1.84 +
    1.85 +   *oResult = name1.Equals(name2);
    1.86 +   return NS_OK;
    1.87 +}

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