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// Copyright (C) 2020-2025 Free Software Foundation, Inc.
// This file is part of GCC.
// GCC is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 3, or (at your option) any later
// version.
// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
// You should have received a copy of the GNU General Public License
// along with GCC; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#ifndef RUST_UNICODE_H
#define RUST_UNICODE_H
#include "optional.h"
#include "rust-system.h"
#include "rust-input-source.h"
namespace Rust {
class Utf8String
{
private:
std::vector<Codepoint> chars;
public:
static tl::optional<Utf8String>
make_utf8_string (const std::string &maybe_utf8)
{
BufferInputSource input_source = {maybe_utf8, 0};
tl::optional<std::vector<Codepoint>> chars_opt = input_source.get_chars ();
if (chars_opt.has_value ())
return {Utf8String (chars_opt.value ())};
else
return tl::nullopt;
}
Utf8String (const std::vector<Codepoint> codepoints) : chars ({codepoints}) {}
std::string as_string () const
{
std::stringstream ss;
for (Codepoint c : chars)
ss << c.as_string ();
return ss.str ();
};
// Returns characters
std::vector<Codepoint> get_chars () const { return chars; }
Utf8String nfc_normalize () const;
};
bool
is_alphabetic (uint32_t codepoint);
bool
is_ascii_only (const std::string &str);
bool
is_numeric (uint32_t codepoint);
bool
is_nfc_qc_no (uint32_t codepoint);
bool
is_nfc_qc_maybe (uint32_t codepoint);
enum class QuickCheckResult
{
YES,
NO,
MAYBE
};
QuickCheckResult
nfc_quick_check (const std::vector<Codepoint> &s);
} // namespace Rust
#if CHECKING_P
namespace selftest {
void
rust_nfc_qc_test ();
void
rust_utf8_normalize_test ();
void
rust_utf8_property_test ();
} // namespace selftest
#endif // CHECKING_P
#endif
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