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From "Emmanuel Bourg (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LANG-859) StringEscapeUtils.escapeXml doesn't escape chars which are considered invalid according to W3C specification
Date Mon, 25 Feb 2013 13:00:14 GMT

     [ https://issues.apache.org/jira/browse/LANG-859?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Emmanuel Bourg updated LANG-859:
--------------------------------

    Summary: StringEscapeUtils.escapeXml doesn't escape chars which are considered invalid
according to W3C specification  (was: org.apache.commons.lang.StringEscapeUtils.escapeXml
doesn't escape chars which are considered invalid according to W3C specification)
    
> StringEscapeUtils.escapeXml doesn't escape chars which are considered invalid according
to W3C specification
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: LANG-859
>                 URL: https://issues.apache.org/jira/browse/LANG-859
>             Project: Commons Lang
>          Issue Type: Bug
>          Components: lang.*
>    Affects Versions: 2.6
>            Reporter: Sergey Bushik
>
> According to specification of XML version 1.0 there are Unicode characters that are not
allowed in the content of the XML document http://www.w3.org/TR/xml/#charsets
> StringEscapeUtils.escapeXml(value) should escape such characters as &#x<hex-code>;
or &#<dec-code>;
> {code}
> public static void main(String[] args) throws Exception {
>     String xmlValidText = "good";
>     // Passes assertion
>     assertEquals(StringEscapeUtils.escapeXml("good"), "good");
>     
>     char xmlInvalidChar = (char) 0x2;
>     String xmlInvalidText = String.valueOf(xmlInvalidChar);
>     // Fails assertion
>     assertEquals(StringEscapeUtils.escapeXml(xmlInvalidText), "&#x2;");
>     
>     System.out.println("Is valid: " + org.apache.xerces.util.XMLChar.isInvalid(xmlInvalidChar));
>     String xml =
>             "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" +
>             "<chars>" +
>             "<valid>" + StringEscapeUtils.escapeXml(xmlValidText) + "</valid>"
+
>             "<invalid>" + StringEscapeUtils.escapeXml(xmlInvalidText) + "</invalid>"
+
>             "</chars>";
>     // An invalid XML character (Unicode: 0x2) was found in the element content of the
document
>     Document document = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(new
ByteArrayInputStream(xml.getBytes("UTF-8")));
>     System.out.println(document);
> }
> {code}

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