From 388ac332eb5519584b9b89ef15d40dcf904bb91c Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Thu, 2 Oct 2025 18:09:22 +0200
Subject: [PATCH] change lower case

---
 src/rename.c         | 12 ++++++++++++
 src/rename.h         |  1 +
 tests/rename_tests.c | 10 ++++++----
 3 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/src/rename.c b/src/rename.c
index 0218fd8..d4d7786 100644
--- a/src/rename.c
+++ b/src/rename.c
@@ -91,6 +91,18 @@ void rename_lower_str(const char* src, char* dst)
 	}
 }
 
+char* rename_lower(const char* src)
+{
+	char* dest = rename_string(src);
+	int length = strlen(dest);
+	for (int i = 0; i < length; i++) {
+		if (dest[i] >= A && dest[i] <= Z)
+			dest[i] += SPACE;
+	}
+
+	return dest;
+}
+
 void rename_str(const char* src, char* dst)
 {
 	int len = strlen(src);
diff --git a/src/rename.h b/src/rename.h
index 87f1c3b..9514ffb 100644
--- a/src/rename.h
+++ b/src/rename.h
@@ -37,6 +37,7 @@ __attribute_deprecated__ void escape_str(const char* src, char* dst);
 char* escape(const char* src);
 __attribute_deprecated__ void rename_point_str(const char* src, char* dst);
 __attribute_deprecated__ void rename_lower_str(const char* src, char* dst);
+char* rename_lower(const char* src);
 __attribute_deprecated__ void rename_str(const char* src, char* dst);
 char* rename_string(const char* src);
 __attribute_deprecated__ void rename_revert_str(const char* src, char* dst);
diff --git a/tests/rename_tests.c b/tests/rename_tests.c
index 5392765..010234b 100644
--- a/tests/rename_tests.c
+++ b/tests/rename_tests.c
@@ -123,14 +123,16 @@ void rename_scharfes_s()
 	output = NULL;
 }
 
-void rename_lower_case(void **state)
+void rename_lower_case()
 {
-	char* output = (char*) *state;
 	char* input = "Gruß Gott, hat der Biergarten offen?";
 
-	rename_lower_str(input, output);
+	char* output = rename_lower(input);
 
 	assert_string_equal(output, "gruss_gott,_hat_der_biergarten_offen?");
+
+	free(output);
+	output = NULL;
 }
 
 void rename_point_case(void **state)
@@ -246,7 +248,7 @@ int main()
 		cmocka_unit_test(rename_ue),
 		cmocka_unit_test(rename_Ue),
 		cmocka_unit_test(rename_scharfes_s),
-		cmocka_unit_test_setup_teardown(rename_lower_case, setup, teardown),
+		cmocka_unit_test(rename_lower_case),
 		cmocka_unit_test_setup_teardown(rename_point_case, setup, teardown),
 		cmocka_unit_test(escape_test),
 		cmocka_unit_test_setup_teardown(rename_revert_spaces, setup, teardown),
-- 
2.47.3