fix: allow spaces in forced Code128 B

src/oned/code_128_writer.rs

@@ -154,7 +154,7 @@ fn check(contents: &str, hints: &crate::EncodeHints) -> Result<i32> {
             CODE_CODE_B_I32 =>
             // allows no ascii below 32 (terminal symbols)
             {
-                if c <= 32 {
+                if c < 32 {
                     return Err(Exceptions::illegal_argument_with(format!(
                         "Bad character in input for forced code set B: ASCII value={c}"
                     )));

src/oned/code_128_writer_test_tase.rs

@@ -342,6 +342,23 @@ fn testEncodeWithForcedCodeSetFailureCodeSetBBadCharacter() {
         .expect("encode");
 }
 
+#[test]
+fn testEncodeWithForcedCodeSetBSpaces() {
+    let hints = EncodeHints::default().with(EncodeHintValue::ForceCodeSet("B".to_string()));
+    for toEncode in [" ", "Hello World 123", " Hello  World 123 "] {
+        let result = WRITER
+            .encode_with_hints(toEncode, &BarcodeFormat::CODE_128, 0, 0, &hints)
+            .expect("encode");
+        let decoded = Code128Reader
+            .decode_row(0, &result.getRow(0), &DecodeHints::default())
+            .expect("decode");
+        assert_eq!(toEncode, decoded.getText());
+        assert_eq!(result.getWidth() as usize, 11 * toEncode.len() + 35 + 10);
+        let actual = bit_matrix_test_case::matrix_to_string(&result);
+        assert!(actual.starts_with(&format!("{QUIET_SPACE}{START_CODE_B}")));
+    }
+}
+
 #[test]
 #[should_panic]
 fn testEncodeWithForcedCodeSetFailureCodeSetCBadCharactersNonNum() {