feat(utf-8): implemented has string function

Include/Fledasty/Strings/UTF8String.h

@@ -42,6 +42,7 @@ FledastyError fledasty_utf8_string_insert_before_string(FledastyUtf8String *curr
 FledastyError fledasty_utf8_string_insert_after_string(FledastyUtf8String *current_string, unsigned char *after_character_string, size_t after_character_string_length, unsigned char *character_string, size_t character_string_length);
 FledastyError fledasty_utf8_string_insert_at_index(FledastyUtf8String *current_string, size_t index, unsigned char *character_string, size_t character_string_length);
 
+bool fledasty_utf8_string_has_string(const FledastyUtf8String *current_string, unsigned char *character_string, size_t character_string_length);
 static inline bool fledasty_utf8_string_is_empty(const FledastyUtf8String *current_string) { return current_string == NULL || current_string->size == 0; }
 
 FledastyUtf8String fledasty_utf8_string_encode(const uint32_t *unicode, const size_t size);

Src/Strings/UTF8String.c

@@ -181,6 +181,23 @@ FledastyError fledasty_utf8_string_insert_at_index(FledastyUtf8String *current_s
     return FLEDASTY_ERROR_NONE;
 }
 
+bool fledasty_utf8_string_has_string(const FledastyUtf8String *current_string, unsigned char *character_string, size_t character_string_length) {
+    if (current_string == NULL || character_string == NULL || character_string_length == 0) {
+        return false;
+    }
+
+    size_t index = 0;
+    while (index < current_string->size - character_string_length) {
+        if (hallocy_compare_memory(current_string->character_string + index, character_string, character_string_length)) {
+            return true;
+        }
+
+        index += 1;
+    }
+
+    return false;
+}
+
 FledastyUtf8String fledasty_utf8_string_encode(const uint32_t *unicode, const size_t size) {
     FledastyUtf8String utf8_string;
     fledasty_utf8_string_initialize(&utf8_string, NULL, 0);

Tests/Main.c

@@ -238,6 +238,10 @@ int main() {
     fledasty_utf8_string_insert_at_index(&test_utf8_string, test_utf8_string.size - 1, (unsigned char*)"index", 5);
     printf("Insert at Index: %s\n", test_utf8_string.character_string);
 
+    if (fledasty_utf8_string_has_string(&test_utf8_string, (unsigned char*)"😀", 4)) {
+        printf("String contains 😀!\n");
+    }
+
     size_t unicode_length = 0;
     uint32_t *unicode = fledasty_utf8_string_decode(&test_utf8_string, &unicode_length);
     FledastyUtf8String encoded_string = fledasty_utf8_string_encode(unicode, unicode_length);