feat: add Pad function

strutil/string.go

@@ -67,6 +67,13 @@ func LowerFirst(s string) string {
 	return string(r) + s[size:]
 }
 
+// PadStart pads string on the left and right side if it's shorter than size.
+// Padding characters are truncated if they exceed size.
+// Play: todo
+func Pad(source string, size int, padStr string) string {
+	return padAtPosition(source, size, padStr, 0)
+}
+
 // PadStart pads string on the left side if it's shorter than size.
 // Padding characters are truncated if they exceed size.
 // Play: https://go.dev/play/p/xpTfzArDfvT

strutil/string_test.go

@@ -168,6 +168,15 @@ func TestLowerFirst(t *testing.T) {
 	}
 }
 
+func TestPad(t *testing.T) {
+	assert := internal.NewAssert(t, "TestPad")
+
+	assert.Equal("a ", Pad("a", 2, ""))
+	assert.Equal("a", Pad("a", 1, "b"))
+	assert.Equal("ab", Pad("a", 2, "b"))
+	assert.Equal("mabcdm", Pad("abcd", 6, "m"))
+}
+
 func TestPadEnd(t *testing.T) {
 	assert := internal.NewAssert(t, "TestPadEnd")