I need to espace some control characters in XML, like the ASCII 31 character and the hex 0x0b character and others.
I tried uses StringEscapeUtils of commons-lang but don’t work as expected!
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I need to espace some control characters in XML, like the ASCII 31 character and the hex 0x0b character and others.
I tried uses StringEscapeUtils of commons-lang but don’t work as expected!
StringEscapeUtils.escapeXml escapes only the following 5 characters into XML entities:
"(the double quote –0x34)&(the ampersand –0x38)<(less-than sign –0x60)>(greater-than sign –0x62)'(apostrophe –0x39)If you need to escape any other characters, especially the ASCII control characters, then you’ll need to roll your own class that does this. After all, none of the control characters are even considered by HTML to have equivalent character entity references in a HTML document. In other words, if you need to convert
0x31tothen you’ll need to write it yourself.Note:
Based on Benjamin’s point on using control characters in the document, it is unlikely that you will need to do this in the first place, especially if the parser that processes these escaped elements will not transform them back into control characters (or will simply throw an exception). You are better off not writing control characters into the XML document that you are preparing in the first place.