[jdom-interest] XML escaping and unescaping

[David Wall]

You are trying to put a CTRL-A character in, and that's not a legal value
for XML data.  Are you trying to store a "1" character?  If so, just use
Element.setText("1");

David

----- Original Message ----- 
From: "John Caron" <caron at unidata.ucar.edu>
To: <jdom-interest at jdom.org>
Sent: Monday, December 06, 2004 4:37 PM
Subject: Re: [jdom-interest] XML escaping and unescaping


> I'm unsure if I have a basic misunderstanding, but its easy enough to
> create a String in Java like
>
>     char[] cdata = new char[] { (char) 1 };
>     String s = new String( cdata);
>
>      Element.setText(s);
>
> or
>
>     Element.setText( XMLOutputter.escapeElementEntities(s))
>
> that gets an exception like:
>
>       The data "
" is not legal for a JDOM character content: 0x1 is not
> a legal XML character
>
> I guess that means that the String has an illegal Unicode encoding  or
> something ? Or maybe I dont know how to extract the Unicode
> representation of the String ?
>
>
> Jason Hunter wrote:
>
> > XMLOutputter has escapeElementEntities() and escapeAttributeEntities()
> > that do what you want and have a pluggaable EscapeStrategy to handle
> > characters outside the selected output encoding.  We don't have code
> > to do the reverse as we rely on XML parsers for that.
> >
> > -jh-
> >
> > d.wall at computer.org wrote:
> >
> >> Does JDOM come with any utility routines that will take a String and
> >> make it XML safe?  And also a routine that takes an XML safe encoding
> >> and converts it back to a regular String?
> >>
> >> i.e.
> >>
> >> String -> XML Safe string -> String
> >>
> >> "This" -> "This"  -> "This"  (no change needed)
> >> "4+3<4+4" -> "4+3&lt;4+4" -> "4+3<4+4"
> >>
> >> I only ask because I have some basic routines that do this, but they
> >> only map the following:
> >>
> >>  >   &gt;
> >> <   &lt;
> >> &   &amp;
> >> '     &apos;
> >> "    &quot;
> >>
> >> It currently doesn't deal with escaped character codes like &#039; It
> >> seems that putting data into XML and getting it back from XML is so
> >> common that there must be a general routine to do this rather than
> >> having to rely on my own implementation.
> >>
> >> Thanks,
> >> David
> >>
> >> _______________________________________________
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> >>
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>
>
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