On Thu, 18 Jan 2024 19:25:28 GMT, Raffaello Giulietti <[email protected]>
wrote:
>> Currently String::translateEscapes does not support unicode escapes,
>> reported as a IllegalArgumentException("Invalid escape sequence: ...").
>> String::translateEscapes should translate unicode escape sequences to
>> provide full coverage,
>
> src/java.base/share/classes/java/lang/String.java line 4274:
>
>> 4272: break;
>> 4273: case 'u':
>> 4274: if (from + 4 <= length) {
>
> Avoids a potential overflow
> Suggestion:
>
> if (from <= length - 4) {
Good.
> src/java.base/share/classes/java/lang/String.java line 4281:
>
>> 4279: } catch (NumberFormatException ex) {
>> 4280: throw new
>> IllegalArgumentException("Invalid unicode sequence: " + hex);
>> 4281: }
>
> Avoids an allocation on a valid sequence, but is perhaps slower.
> Suggestion:
>
> from += 4;
> try {
> ch = (char) Integer.parseInt(this, from - 4,
> from, 16);
> } catch (NumberFormatException ex) {
> throw new IllegalArgumentException("Invalid
> unicode sequence: " + substring(from - 4, from));
> }
Good.
-------------
PR Review Comment: https://git.openjdk.org/jdk/pull/17491#discussion_r1457941024
PR Review Comment: https://git.openjdk.org/jdk/pull/17491#discussion_r1457941676
