How do I escape unicode character 0x1F in xml?

Question

I need to write a text with the unicode character 0x1F in a utf-8 document (it is not an allowed character in xml). Is there a way to escape it, or do I have to discard it?

David M · Accepted Answer · 2009-07-23T08:24:01.380

9

This will do it in XML 1.1 (but is discouraged):

&#31;

It isn't supported at all in XML 1.0. A workaround is to base-64 encode the text containing the character.

edited Jul 23 '09 at 08:24

answered Jul 23 '09 at 07:49

David M

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Well, that is the same thing, but it is just as illegal. xmllint for example: test.xml:2: parser error : xmlParseCharRef: invalid xmlChar value 31 – Filip Jul 23 '09 at 08:15
can you please explain it. how can i use while parsing the xml which contains 0x1f char – Mohit Singh Jun 28 '17 at 09:09

score 3 · Answer 2 · answered Jul 24 '09 at 08:02

Using 0x1F XML is illegal (http://www.w3.org/TR/xml11/#charsets). so there is no way to do it, except from encoding it yourself in some way. base-64 (as proposed), or url encode, or any other option that the xml does not understand. It is the same problem as storing binary data in xml.

How do I escape unicode character 0x1F in xml?

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