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https://issues.apache.org/jira/browse/LANG-448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12609813#action_12609813
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Joerg Schaible commented on LANG-448:
-------------------------------------
This patch is only valid, if you operate with XML 1.0. For XML 1.1 the allowed
character set is different. See LANG-66 with a related change.
> Lower Ascii Characters don't get encoded by Entities.java
> ---------------------------------------------------------
>
> Key: LANG-448
> URL: https://issues.apache.org/jira/browse/LANG-448
> Project: Commons Lang
> Issue Type: Bug
> Affects Versions: 2.4
> Environment: N/A
> Reporter: Quintin Beukes
> Attachments: lowerascii.patch
>
>
> I have an XML files which sometimes contain control characters like 0x0c, or
> 0x18. These aren't allowed to be directly in the file (the validator fails
> with invalid character), so they need to be escaped.
> When using "StringEscapeUtils.escapeXml(String str)", which in turn uses
> "Entities.escape(Writer writer, String str)", these characters don't get
> escaped. Only characters above 0x7F get escaped.
> I fixed this bug, and attached a patch.
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