From f72d8c1509569719a7113944c4b5688165105b28 Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Tue, 16 Jul 2024 13:57:33 +0200
Subject: [PATCH] add method for lower case rename

---
 src/rename.c         | 11 +++++++++++
 src/rename.h         |  1 +
 tests/rename_tests.c | 11 +++++++++++
 3 files changed, 23 insertions(+)

diff --git a/src/rename.c b/src/rename.c
index 24ec402..107cb79 100644
--- a/src/rename.c
+++ b/src/rename.c
@@ -2,6 +2,17 @@
 #include <string.h>
 #include "rename.h"
 
+void rename_lowwer_str(char* src, char* dst)
+{
+	rename_str(src, dst);
+	int len = strlen(dst);
+	for (int i = 0; i < len; i++) {
+		if (dst[i] >= 0x41 && dst[i] <= 0x5a) {
+			dst[i] = dst[i] + 0x20;
+		}
+	}
+}
+
 void rename_str(char* src, char* dst)
 {
 	int len = strlen(src);
diff --git a/src/rename.h b/src/rename.h
index 6cc8187..c3b0c8c 100644
--- a/src/rename.h
+++ b/src/rename.h
@@ -3,6 +3,7 @@
 
 #define STR_MAX_LENGTH 255
 
+void rename_lowwer_str(char* src, char* dst);
 void rename_str(char* src, char* dst);
 
 #endif
\ No newline at end of file
diff --git a/tests/rename_tests.c b/tests/rename_tests.c
index dc5d3ce..c072e8f 100644
--- a/tests/rename_tests.c
+++ b/tests/rename_tests.c
@@ -107,6 +107,16 @@ void rename_scharfes_s(void **state)
 	assert_string_equal(output, "Gruss");
 }
 
+void rename_lower_case(void **state)
+{
+	char* output = (char*) *state;
+	char* input = "Gruß Gott, hat der Biergarten offen?";
+
+	rename_lowwer_str(input, output);
+
+	assert_string_equal(output, "gruss_gott,_hat_der_biergarten_offen?");
+}
+
 int main()
 {
 	const struct CMUnitTest tests[] = {
@@ -118,6 +128,7 @@ int main()
 		cmocka_unit_test_setup_teardown(rename_ue, setup, teardown),
 		cmocka_unit_test_setup_teardown(rename_Ue, setup, teardown),
 		cmocka_unit_test_setup_teardown(rename_scharfes_s, setup, teardown),
+		cmocka_unit_test_setup_teardown(rename_lower_case, setup, teardown),
 	};
 
 	return cmocka_run_group_tests(tests, NULL, NULL);
-- 
2.39.5