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construct/include/ircd/icu.h
2020-06-27 16:31:57 -07:00

64 lines
2.3 KiB
C++

// The Construct
//
// Copyright (C) The Construct Developers, Authors & Contributors
// Copyright (C) 2016-2020 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_ICU_H
/// International Components for Unicode
namespace ircd::icu
{
IRCD_EXCEPTION(ircd::error, error)
int8_t category(const char32_t &) noexcept;
int16_t block(const char32_t &) noexcept;
bool is_nonchar(const char32_t &) noexcept;
bool is_char(const char32_t &) noexcept;
char32_t toupper(const char32_t &) noexcept;
char32_t tolower(const char32_t &) noexcept;
char32_t name(std::nothrow_t, const string_view &name); // error = U+FFFD
char32_t name(const string_view &name);
string_view name(const mutable_buffer &, std::nothrow_t, const char32_t &);
string_view name(const mutable_buffer &, const char32_t &);
string_view property_name(const uint &prop);
string_view property_acronym(const uint &prop);
extern const info::versions version_api, version_abi;
extern const info::versions unicode_version_api, unicode_version_abi;
}
namespace ircd::icu::utf8
{
bool lead(const char &) noexcept;
bool trail(const char &) noexcept;
bool single(const char &) noexcept;
size_t length(const char32_t &) noexcept;
size_t length(const string_view &) noexcept;
char32_t get(const string_view &) noexcept; // error < 0
char32_t get_or_fffd(const string_view &) noexcept; // error = U+FFFD
char32_t get_unsafe(const string_view &) noexcept; // error undefined
size_t decode(char32_t *const &out, const size_t &max, const string_view &in);
const_buffer encode(const mutable_buffer &out, const vector_view<const char32_t> &in);
}
namespace ircd::icu::utf16
{
bool lead(const char &) noexcept;
bool trail(const char &) noexcept;
bool single(const char &) noexcept;
size_t length(const char32_t &) noexcept;
size_t length(const string_view &) noexcept;
char32_t get(const string_view &) noexcept; // error < 0
char32_t get_or_fffd(const string_view &) noexcept; // error = U+FFFD
char32_t get_unsafe(const string_view &) noexcept; // error undefined
}