1 files changed, 50 insertions, 0 deletions
diff --git a/gcc/rust/util/rust-unicode.h b/gcc/rust/util/rust-unicode.h
new file mode 100644
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+++ b/gcc/rust/util/rust-unicode.h
@@ -0,0 +1,50 @@
+// Copyright (C) 2020-2023 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 "rust-system.h"
+
+namespace Rust {
+
+// TODO: add function nfc_normalize
+
+bool
+is_alphabetic (uint32_t codepoint);
+
+bool
+is_numeric (uint32_t codepoint);
+
+} // namespace Rust
+
+#if CHECKING_P
+
+namespace selftest {
+
+void
+rust_utf8_normalize_test ();
+
+void
+rust_utf8_property_test ();
+
+} // namespace selftest
+
+#endif // CHECKING_P
+
+#endif