1 files changed, 37 insertions, 0 deletions
diff --git a/libalee/ctype.hpp b/libalee/ctype.hpp
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+++ b/libalee/ctype.hpp
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+/**
+ * Alee Forth: A portable and concise Forth implementation in modern C++.
+ * Copyright (C) 2023  Clyne Sullivan <clyne@bitgloo.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef ALEEFORTH_CTYPE_HPP
+#define ALEEFORTH_CTYPE_HPP
+
+#include <cstdint>
+
+bool isspace(uint8_t);
+bool isspace(char);
+
+bool isdigit(uint8_t);
+bool isdigit(char);
+
+bool isalpha(uint8_t);
+bool isalpha(char);
+
+bool isupper(uint8_t);
+bool isupper(char);
+
+#endif // ALEEFORTH_CTYPE_HPP
+