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proven-point/strings.c

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+#include "main.h"
+#include <stdlib.h>
+
+/**
+ * _strlen - Takes string and return its length
+ *
+ * @str: Address to the head of the string (Array of Characters) (Lost btw)
+ *
+ * Return: Length of String
+ */
+int _strlen(const char *str)
+{
+	if (*str)
+		return (1 + _strlen(++str));
+	else
+		return (0);
+}
+
+/**
+ * _contains - gets number of unique identifiers
+ *
+ * @str: da string
+ * @c: basically almost always '%'
+ *
+ * Return: number of unique cases of "%*" that aren't "%%"
+ */
+int _contains(const char *str, char c)
+{
+	if (*str)
+	{
+		if (*str == c && *(str + 1) != c && *(str - 1) != c)
+			return (1 + _contains(str + 1, c));
+		else
+			return (_contains(str + 1, c));
+	}
+	else
+		return (0);
+}
+
+/**
+ * append - shoved character at the end
+ *
+ * @str: main string
+ * @c: character getting shoved
+ *
+ * Return: da string but appended
+ */
+
+char *append(char *str, char c)
+{
+	int len, i;
+	char *new_me;
+
+	len = _strlen(str);
+
+	new_me = malloc(len + 1);
+	i = -1;
+	while (*(str + ++i))
+		*(new_me + i) = *(str + i);
+
+	*(new_me + i++) = c;
+	*(new_me + len + 1) = '\0';
+	return (new_me);
+}
+
+/**
+ * str_up - changes all lowercase letters of a string
+ * to uppercase
+ * @s: string to modify
+ *
+ * Return: the resulting string
+ */
+char *str_up(char *s)
+{
+	int i;
+
+	for (i = 0; s[i] != '\0'; i++)
+	{
+		if (s[i] >= 'a' && s[i] <= 'z')
+			s[i] = s[i] - 32;
+	}
+
+	return (s);
+}