if (c.isLowSurrogate() || !low.isLowSurrogate()) {
              '?'.code
            } else {
              i++
              0x010000 + (c.code and 0x03ff shl 10 or (low.code and 0x03ff))
            }
          }

          else -> {
            c.code
          }
        }
      i++
    }
    return result
  }

  private val Int.punycodeDigit: Int

  // 128
  private static final long EXPECTED_ONE_BYTE_ROUNDTRIPPABLE_COUNT =
      ONE_BYTE_ROUNDTRIPPABLE_CHARACTERS;

  // 1920 [chars 0x0080 to 0x07FF]
  private static final long TWO_BYTE_ROUNDTRIPPABLE_CHARACTERS = 0x07FF - 0x0080 + 1;

  // 18,304
  private static final long EXPECTED_TWO_BYTE_ROUNDTRIPPABLE_COUNT =
      // Both bytes are one byte characters

        docBoostMatcher.setBoostExpression("'3.14'");

        final Map<String, Object> map = new HashMap<String, Object>();
        map.put("data1", 1);
        assertTrue(Math.abs(3.14f - docBoostMatcher.getValue(map)) < 0.001f);
    }

    @Test
    public void test_getValue_emptyStringReturn() {
        final DocBoostMatcher docBoostMatcher = new DocBoostMatcher();
        docBoostMatcher.setBoostExpression("''");

    assertThat(converter.convert("0xff")).isEqualTo(255);
    assertThat(converter.convert("0xFF")).isEqualTo(255);
    assertThat(converter.convert("-0xFF")).isEqualTo(-255);
    assertThat(converter.convert("#0000FF")).isEqualTo(255);
    assertThat(converter.convert("0666")).isEqualTo(438);
  }

  public void testStringConverter_convertError() {

        // Test execute with small boost value
        QueryContext context = new QueryContext("test", false);
        MatchAllDocsQuery query = new MatchAllDocsQuery();
        float boost = 0.001f;

        QueryBuilder result = matchAllQueryCommand.execute(context, query, boost);

        assertNotNull(result);
        assertTrue(result instanceof MatchAllQueryBuilder);
    }

    @Test

    assertThat(converter.convert("0xff")).isEqualTo(255L);
    assertThat(converter.convert("0xFF")).isEqualTo(255L);
    assertThat(converter.convert("-0xFF")).isEqualTo(-255L);
    assertThat(converter.convert("#0000FF")).isEqualTo(255L);
    assertThat(converter.convert("0666")).isEqualTo(438L);
  }

  public void testStringConverter_convertError() {

    assertThat(converter.convert("0xff")).isEqualTo(255);
    assertThat(converter.convert("0xFF")).isEqualTo(255);
    assertThat(converter.convert("-0xFF")).isEqualTo(-255);
    assertThat(converter.convert("#0000FF")).isEqualTo(255);
    assertThat(converter.convert("0666")).isEqualTo(438);
  }

  public void testStringConverter_convertError() {

    assertThat(converter.convert("0xff")).isEqualTo(255);
    assertThat(converter.convert("0xFF")).isEqualTo(255);
    assertThat(converter.convert("-0xFF")).isEqualTo(-255);
    assertThat(converter.convert("#0000FF")).isEqualTo(255);
    assertThat(converter.convert("0666")).isEqualTo(438);
  }

  public void testStringConverter_convertError() {

x41 uint64 x40, x41 = bits.Add64(x15, x12, uint64(p521Uint1(x39))) var x42 uint64 var x43 uint64 x42, x43 = bits.Add64(x13, x10, uint64(p521Uint1(x41))) x44 := (uint64(p521Uint1(x43)) + x11) var x45 uint64 var x46 uint64 x46, x45 = bits.Mul64(x26, 0x1ff) var x47 uint64 var x48 uint64 x48, x47 = bits.Mul64(x26, 0xffffffffffffffff) var x49 uint64 var x50 uint64 x50, x49 = bits.Mul64(x26, 0xffffffffffffffff) var x51 uint64 var x52 uint64 x52, x51 = bits.Mul64(x26, 0xffffffffffffffff) var x53 uint64 var...

<code>\u00FF</code>, <code>\U000000FF</code> and <code>\xc3\xbf</code> represent
the two bytes <code>0xc3</code> <code>0xbf</code> of the UTF-8 encoding of character
U+00FF.
</p>

<pre class="ebnf">
string_lit             = raw_string_lit | interpreted_string_lit .
raw_string_lit         = "`" { unicode_char | newline } "`" .