- From: Peter Flynn <peter@s...>
- To: xml-dev@l...
- Date: Fri, 19 Feb 2021 21:43:34 +0000
On 19/02/2021 20:18, G. Ken Holman wrote:
An XML processor is allowed to ignore incoming comments in its processing.
https://www.w3.org/TR/xml/#dt-comment
an XML processor may, but need not, make it possible for an
application to retrieve the text of comments.
Wrapping it in CDATA will mean the processor won't recognize it as a
comment because it is a string, the processor will preserve the CDATA,
will emit the text, and the resulting text would be interpreted as a
comment by a downstream processor.
No risk of losing the data on input.
That's my guess ... I've not seen this done before, myself. Interesting.
I have seen it very frequently in CMS-generated pages. IMNSHE it is the
result of an automated process embedding the CSS information, and
deliberately double-shielding it because at some dim, distant stage in
the past, a developer was told that XML processing "couldn't handle"
less-thans and ampersands, and the best thing to do was to wrap the CSS
in as many layers of protection as possible.
Peter
At 2021-02-19 19:25 +0000, Roger L Costello wrote:
Hi Folks,
I am processing a bunch of XHTML documents. Some XHTML documents
contain things like this:
<style>
<![CDATA[
<!--
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
-->
]]>
</style>
So, the content of the <style> element is this:
<!--
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
-->
That looks like a comment, but it's not a comment, it's just a string.
Right?
Question: Why would someone would do this? Is there a benefit to
embedding a fake comment inside an element?
/Roger
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