[TEXT-XXX] Support ECMAScript \x unescaping in StringEscapeUtils #589
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My Jira account request got denied and I have a low tolerance for red tape, so I'll just leave this PR here for anyone who cares enough to get it merged. |
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Hello @timdp |
ecki
reviewed
Jan 1, 2026
| */ | ||
| public static final CharSequenceTranslator UNESCAPE_ECMASCRIPT = UNESCAPE_JAVA; | ||
| public static final CharSequenceTranslator UNESCAPE_ECMASCRIPT = new AggregateTranslator( | ||
| new HexUnescaper(), |
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For consistency should be a static constant as well?
ecki
reviewed
Jan 1, 2026
| final int value = Integer.parseInt(hex.toString(), 16); | ||
| writer.write((char) value); | ||
| } catch (final NumberFormatException nfe) { | ||
| throw new IllegalArgumentException("Unable to parse ASCII value: " + hex, nfe); |
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We probably need to document the IAE for the unescape functions and translator objects. An Abort is valid, it is a Syntax error in ECMAScript (need to verify the same for Java)
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Currently,
StringEscapeUtilsunescapes ECMAScript using the Java strategy.This mostly works, but ECMAScript additionally supports
\xCCescapes, whereCCis a hex code.This PR adds support for that, as well as an initial test.
I took the liberty of making the child translators of the Java aggregate translator reusable, so I could basically extend the list for the ES version. If we prefer to duplicate that code or to use a varargs list or something, I'm absolutely fine with that as well.
I just subscribed to the dev list and requested access to Jira. I will update the PR title once I've created the corresponding issue.