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From "Gregor B. Rosenauer (JIRA)" <>
Subject [jira] Created: (LANG-507) StringEscapeUtils.unescapeJava should support \u+ notation
Date Fri, 05 Jun 2009 14:38:07 GMT
StringEscapeUtils.unescapeJava should support \u+ notation

                 Key: LANG-507
             Project: Commons Lang
          Issue Type: Improvement
    Affects Versions: 2.4
            Reporter: Gregor B. Rosenauer
            Priority: Trivial

Currently, when trying to unescape a String with Unicode escapes in the common notation, e.g.,
\u+0022, I get a NumberFormatException:

org.apache.commons.lang.exception.NestableRuntimeException: Unable to parse unicode value:

Note that the number is also parsed incorrectly as it is shortened by one character (obviously,
the parser gets confused by the '+' and only takes up to 4 bytes, so it neglects the last

I am aware that in Java, Unicode is escaped as "\u" followed by 4 bytes that represent the
hex code in the Unicode map, but the \u+ notation is commonly used outside the Java world
and it would be very handy if StringEscapeUtils supported that, at least as an option.

Would you please consider adding this feature to 3.0?

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