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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef intl_components_LocaleCanonicalizer_h_
#define intl_components_LocaleCanonicalizer_h_
#include "mozilla/intl/ICU4CGlue.h"
#include "mozilla/Span.h"
#include "mozilla/Vector.h"
namespace mozilla::intl {
/**
* 32 is somewhat an arbitrary size, but it should fit most locales on the
* stack to avoid heap allocations.
*/
constexpr size_t INITIAL_LOCALE_CANONICALIZER_BUFFER_SIZE = 32;
/**
* Eventually this class will unify the behaviors of Locale Canonicalization.
* See Bug 1723586.
*/
class LocaleCanonicalizer {
public:
using Vector =
mozilla::Vector<char, INITIAL_LOCALE_CANONICALIZER_BUFFER_SIZE>;
/**
* This static method will canonicalize a locale string, per the Level 1
* canonicalization steps outlined in:
* http://userguide.icu-project.org/locale#TOC-Canonicalization
*
* For instance it will turn the string "en-US" to "en_US". It guarantees that
* the string span targeted will be in the ASCII range. The canonicalization
* process on ICU is somewhat permissive in what it accepts as input, but only
* ASCII locales are technically correct.
*/
static ICUResult CanonicalizeICULevel1(
const char* aLocale, LocaleCanonicalizer::Vector& aLocaleOut);
};
} // namespace mozilla::intl
#endif
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