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From "Kazuki Hamasaki (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LANG-858) StringEscapeUtils.escapeJava() does not output the escaped surrogate pairs that is Java parsable
Date Wed, 21 Nov 2012 14:41:58 GMT

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

Kazuki Hamasaki updated LANG-858:
---------------------------------

    Attachment: JavaUnicodeEscape.patch
    
> StringEscapeUtils.escapeJava() does not output the escaped surrogate pairs that is 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
>         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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