Project setup

utils/string_utils.h

@@ -0,0 +1,26 @@
+#pragma once
+
+// Copyright (c) 2019 Christoffer Lerno. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+
+#include <stdbool.h>
+
+static inline bool is_lower(char c)
+{
+	return c >= 'a' && c <= 'z';
+}
+
+static inline bool is_upper(char c)
+{
+	return c >= 'A' && c <= 'Z';
+}
+
+static inline bool is_alphanum_(char c)
+{
+	return (c >= 'a' && c <= 'z')
+		|| (c >= 'A' && c <= 'Z')
+		|| (c >= '0' && c <= '9')
+		|| c == '_';
+}