1 files changed, 46 insertions, 0 deletions
diff --git a/c02/ex09/ft_strcapitalize.c b/c02/ex09/ft_strcapitalize.c
new file mode 100644
index 0000000..2707de7
--- /dev/null
+++ b/c02/ex09/ft_strcapitalize.c
@@ -0,0 +1,46 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strcapitalize.c                                 :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/04 13:18:24 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/04 15:24:18 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+int		is_between(char start, char end, char character)
+{
+	return (character >= start && character <= end);
+}
+
+int		is_alphanum(char character)
+{
+	return (is_between('a', 'z', character) || is_between('A', 'Z', character)
+			|| is_between('0', '9', character));
+}
+
+char	*ft_strcapitalize(char *str)
+{
+	char *cursor;
+
+	cursor = str;
+	while (*cursor != '\0')
+	{
+		if (is_alphanum(*cursor))
+		{
+			if (is_between('a', 'z', *cursor))
+				*cursor = *cursor - 'a' + 'A';
+			cursor++;
+			while (is_alphanum(*cursor))
+			{
+				if (is_between('A', 'Z', *cursor))
+					*cursor = *cursor - 'A' + 'a';
+				cursor++;
+			}
+		}
+		cursor++;
+	}
+	return (str);
+}