Comments
XML comments contain human-readable information and are formed the same way SGML (and thus HTML) comments are formed.
Productions
[15] Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->'
Examples
<!--This is a very simple document.--> <!-- This comment is on several lines. -->
Description
Comments begin with <!--
and end with —>
. They can
contain characters that are illegal in text (character data) such as
&
and <
; however, they can’t contain the
character sequence --
or --->
, and they cannot be nested. XML
processors generally ignore comments but may keep track of them. You
can place comments anywhere in an XML document except inside other
markup, such as within tag brackets. You can also place comments
inside document type declarations, where allowed. Entity references
and parameter entity references (such as <
or %data;
) are allowed but not recognized or
expanded inside comments.
See also
§2.5
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