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94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode:nil; c-basic-offset: 2 -*- */
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/* 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 "Quotes.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/StaticPtr.h"
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#include "mozilla/intl/Locale.h"
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#include "nsTHashMap.h"
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#include "nsPrintfCString.h"
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using namespace mozilla;
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using namespace mozilla::intl;
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namespace {
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struct LangQuotesRec {
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const char* mLangs;
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Quotes mQuotes;
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};
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#include "cldr-quotes.inc"
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static StaticAutoPtr<nsTHashMap<nsCStringHashKey, Quotes>> sQuotesForLang;
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} // anonymous namespace
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namespace mozilla {
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namespace intl {
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const Quotes* QuotesForLang(const nsAtom* aLang) {
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MOZ_ASSERT(NS_IsMainThread());
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// On first use, initialize the hashtable from our CLDR-derived data array.
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if (!sQuotesForLang) {
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sQuotesForLang = new nsTHashMap<nsCStringHashKey, Quotes>(32);
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ClearOnShutdown(&sQuotesForLang);
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for (const auto& i : sLangQuotes) {
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const char* s = i.mLangs;
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size_t len;
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while ((len = strlen(s))) {
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sQuotesForLang->InsertOrUpdate(nsDependentCString(s, len), i.mQuotes);
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s += len + 1;
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}
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}
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}
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nsAtomCString langStr(aLang);
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const Quotes* entry = sQuotesForLang->Lookup(langStr).DataPtrOrNull();
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if (entry) {
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// Found an exact match for the requested lang.
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return entry;
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}
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// Try parsing lang as a Locale and canonicalizing the subtags, then see if
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// we can match it with region or script subtags, if present, or just the
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// primary language tag.
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Locale loc;
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auto result = LocaleParser::TryParse(langStr, loc);
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if (result.isErr()) {
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return nullptr;
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}
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if (loc.Canonicalize().isErr()) {
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return nullptr;
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}
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if (loc.Region().Present()) {
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nsAutoCString langAndRegion;
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langAndRegion.Append(loc.Language().Span());
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langAndRegion.Append('-');
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langAndRegion.Append(loc.Region().Span());
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if ((entry = sQuotesForLang->Lookup(langAndRegion).DataPtrOrNull())) {
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return entry;
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}
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}
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if (loc.Script().Present()) {
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nsAutoCString langAndScript;
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langAndScript.Append(loc.Language().Span());
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langAndScript.Append('-');
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langAndScript.Append(loc.Script().Span());
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if ((entry = sQuotesForLang->Lookup(langAndScript).DataPtrOrNull())) {
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return entry;
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}
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}
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Span<const char> langAsSpan = loc.Language().Span();
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nsAutoCString lang(langAsSpan.data(), langAsSpan.size());
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if ((entry = sQuotesForLang->Lookup(lang).DataPtrOrNull())) {
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return entry;
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}
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return nullptr;
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}
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} // namespace intl
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} // namespace mozilla
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