45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsUConvPropertySearch.h"
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#include "nsCRT.h"
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#include "nsString.h"
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#include "mozilla/BinarySearch.h"
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namespace {
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struct PropertyComparator
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{
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const nsCString& mKey;
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explicit PropertyComparator(const nsCString& aKey) : mKey(aKey) {}
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int operator()(const char* (&aProperty)[3]) const {
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return mKey.Compare(aProperty[0]);
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}
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};
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} // namespace
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// static
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nsresult
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nsUConvPropertySearch::SearchPropertyValue(const char* aProperties[][3],
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int32_t aNumberOfProperties,
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const nsACString& aKey,
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nsACString& aValue)
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{
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using mozilla::BinarySearchIf;
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const nsCString& flat = PromiseFlatCString(aKey);
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size_t index;
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if (BinarySearchIf(aProperties, 0, aNumberOfProperties,
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PropertyComparator(flat), &index)) {
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nsDependentCString val(aProperties[index][1],
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NS_PTR_TO_UINT32(aProperties[index][2]));
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aValue.Assign(val);
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return NS_OK;
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}
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aValue.Truncate();
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return NS_ERROR_FAILURE;
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}
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