From 6496152f573d6b1e2e93d0a9b546403d8b183f8e Mon Sep 17 00:00:00 2001
From: Clyne Sullivan <clyne@bitgloo.com>
Date: Wed, 8 Nov 2023 07:37:43 -0500
Subject: add doxygen support

---
 libalee/ctype.hpp | 44 +++++++++++++++++++++++---------------------
 1 file changed, 23 insertions(+), 21 deletions(-)

(limited to 'libalee/ctype.hpp')

diff --git a/libalee/ctype.hpp b/libalee/ctype.hpp
index 878c747..5252eda 100644
--- a/libalee/ctype.hpp
+++ b/libalee/ctype.hpp
@@ -1,42 +1,44 @@
-/**
- * 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/>.
- */
+//
+/// @file ctype.hpp
+/// @brief Simple implementations of character comparison functions.
+//
+// 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
 
-/**
- * We implement our own character comparison functions to keep them lean.
- */
-
 #include <cstdint>
 
+/** Tests if given character represents whitespace. */
 constexpr inline bool isspace(uint8_t c) {
     return c == ' ' || c == '\t' || c == '\r' || c == '\n';
 }
 
+/** Tests if given character is a numerical digit. */
 constexpr inline bool isdigit(uint8_t c) {
     return c >= '0' && c <= '9';
 }
 
+/** Tests if given character is an uppercase letter. */
 constexpr inline bool isupper(uint8_t c) {
     return c >= 'A' && c <= 'Z';
 }
 
+/** Tests if given character is a letter. */
 constexpr inline bool isalpha(uint8_t c) {
     return isupper(c) || (c >= 'a' && c <= 'z');
 }
-- 
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