import (
	"iter"
	"unicode"
	"unicode/utf8"
)

// Lines returns an iterator over the newline-terminated lines in the byte slice s.
// The lines yielded by the iterator include their terminating newlines.
// If s is empty, the iterator yields no lines at all.
// If s does not end in a newline, the final yielded line will not end in a newline.
// It returns a single-use iterator.
func Lines(s []byte) iter.Seq[[]byte] {

    }

    /**
     * Test rule replacement scenario
     */
    public void test_ruleReplacement() {
        TestRule oldRule = new TestRule("rule1", false);
        TestRule newRule = new TestRule("rule1", true); // Same ID, different behavior

        ruleManager.addRule(oldRule);

        ResponseData responseData = new ResponseData();

		return "", "", s, ErrHeader
	}
	n -= int64(len(nStr) + 1) // convert from index in s to index in rest
	if n <= 0 {
		return "", "", s, ErrHeader
	}

	// Extract everything between the space and the final newline.
	rec, nl, rem := rest[:n-1], rest[n-1:n], rest[n:]
	if nl != "\n" {
		return "", "", s, ErrHeader
	}

	// The first equals separates the key from the value.
	k, v, ok = strings.Cut(rec, "=")
	if !ok {

        // Tab characters
        testTransformer.setName("\tname\twith\ttabs\t");
        assertEquals("\tname\twith\ttabs\t", testTransformer.getName());

        // Newline characters
        testTransformer.setName("name\nwith\nnewlines");
        assertEquals("name\nwith\nnewlines", testTransformer.getName());
    }

    /**
     * Test multiple name changes
     */