[jira] [Resolved] (LANG-858) StringEscapeUtils.escapeJava() and escapeEcmaScript() do not output the escaped surrogate pairs that are Java parsable

["Gary Gregory (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LANG-858?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gary Gregory resolved LANG-858.
-------------------------------

       Resolution: Fixed
    Fix Version/s: 3.2

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commit -m "<action issue="LANG-858" type="fix">StringEscapeUtils.escapeJava() and escapeEcmaScript() do not output the escaped surrogate pairs that are Java parsable</action>" C:/svn/org/apache/commons/trunks-proper/lang/src/changes/changes.xml C:/svn/org/apache/commons/trunks-proper/lang/src/test/java/org/apache/commons/lang3/StringUtilsTest.java C:/svn/org/apache/commons/trunks-proper/lang/src/main/java/org/apache/commons/lang3/text/translate/JavaUnicodeEscaper.java C:/svn/org/apache/commons/trunks-proper/lang/src/main/java/org/apache/commons/lang3/StringEscapeUtils.java C:/svn/org/apache/commons/trunks-proper/lang/src/main/java/org/apache/commons/lang3/text/translate/UnicodeEscaper.java
    Sending        C:/svn/org/apache/commons/trunks-proper/lang/src/changes/changes.xml
    Sending        C:/svn/org/apache/commons/trunks-proper/lang/src/main/java/org/apache/commons/lang3/StringEscapeUtils.java
    Adding         C:/svn/org/apache/commons/trunks-proper/lang/src/main/java/org/apache/commons/lang3/text/translate/JavaUnicodeEscaper.java
    Sending        C:/svn/org/apache/commons/trunks-proper/lang/src/main/java/org/apache/commons/lang3/text/translate/UnicodeEscaper.java
    Sending        C:/svn/org/apache/commons/trunks-proper/lang/src/test/java/org/apache/commons/lang3/StringUtilsTest.java
    Transmitting file data ...
    Committed revision 1413114.
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> StringEscapeUtils.escapeJava() and escapeEcmaScript() do not output the escaped surrogate pairs that are Java parsable
> ----------------------------------------------------------------------------------------------------------------------
>
>                 Key: LANG-858
>                 URL: https://issues.apache.org/jira/browse/LANG-858
>             Project: Commons Lang
>          Issue Type: Bug
>          Components: lang.*, lang.text.translate.*
>    Affects Versions: 3.x
>            Reporter: Kazuki Hamasaki
>            Priority: Minor
>              Labels: escaping
>             Fix For: 3.2
>
>         Attachments: JavaUnicodeEscape.patch
>
>
> In case of Java and ECMA Script, the style of unicode escape {{'\uxxxxxx'}} cannot be accepted. We need to separate it into high-surrogate and low-surrogate.
> For example, you put the surrogate pair
> {code:java}
> '\uDBFF\uDFFD'
> {code}
> output must be
> {code:java}
> "\\uDBFF\\uDFFD"
> {code}
> However you get
> {code:java}
> "\\u10FFFD"
> {code}
> Test case here:
> {code:java}
> @Test
> public void testEscapeSurrogatePairs() throws Exception {
>     assertEquals("\\uDBFF\\uDFFD", StringEscapeUtils.escapeJava("\uDBFF\uDFFD"));
>     assertEquals("\\uDBFF\\uDFFD", StringEscapeUtils.escapeEcmaScript("\uDBFF\uDFFD"));
> }
> {code}
> I attached the patch which implements simple solution.
> But UnicodeEscaper.java should not be specified for Java, I think. We need to discuss about it.
> This issue does not be appeared in unescape method.

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