highlight.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE language SYSTEM "language.dtd"
[
    <!-- comment line 1
         comment line 2 -->
    <!ENTITY name    "(?![0-9])[\w_:][\w.:_-]*">
    <!ENTITY entref  "&amp;(#[0-9]+|#[xX][0-9A-Fa-f]+|&name;);">
]>

<!-- we need this tags or this is no valid file -->

<element attr1="a1" attr2="2.03" attr3="&entity;">
    <sub-element/>
</element>

This is a pseudo XML file to test Kate's XML syntax highlighting.

Doctype:
	<!DOCTYPE HTML PUBLIC "-//SOME_DOCTYPE 0.01//EN" SYSTEM "foobar.dtd">
	<!DOCTYPE
        HTML PUBLIC "-//SOME_DOCTYPE 0.01//EN" SYSTEM "foobar.dtd">

Processing instruction:
	<?php processing instruction ?>

Comments:
	<!-- a comment -->
	<!-- another comment,
	using more than one line -->

Comment inside element:
	<element attr="foobar">content<!-- comment --></element>

Markup inside comment:
	<!--
	This is a comment!
	<element inside_comment />
	-->

Empty element:
	<empty/>
	<empty  />

Simple element plus content:
	<element>some content</element>
	<element attr="foobar">some
		content</element>

Namespace for elements and attributes:
	<ns:element>content</ns:element>
	<element ns:attr="content content">content</element>

Elements containing allowed characters:
	<element-dash foo="test"/>
	<element.dot foo="test"/>

Elements containing allowed start characters:
	<:element foo="test"/>
	<_element foo="test"/>

Single quotes (the same as double quotes):
	<element attr='content &nbsp; content'>content</element>

Allowed Whitespace:
	<element     attr   =   "test"  >
		content</element>

Entities:
	&nbsp;
	&#229;
	&#xE5;
	&#Xe5;
	&#1048;
	&#x6C34;
	<element attr="foo &nbsp; &#229; &amp; bar"/>

Illegal XML, should not be highlighted:
	<0foobar> -- no digit as first character
	<-foo> -- no dash as first character

<wrong<very wrong>>