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;);">
    <!ENTITY % parameterEntity "blabla%parament;blabla" >
]>

<!-- 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 />
	-->

Double hyphen within comment:
<!--
    -
    error: --
    error: ---
-->
<!-- 1 '-' as error --->
<!-- 2 '-' as error ---->
<!-- 3 '-' as error ----->
<!-- 4 '-' as error ------>

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>>
<tag attr="abc"/>

<wrong<!--very wrong-->>
<tag attr="abc"/>

<wrong<![CDATA[very wrong]]>
<tag attr="abc"/>

<!-- missing > -->

<wrong<tag attr="abc"/>
<wrong<!--bla bla--><tag attr="abc"/>
<wrong<![CDATA[bla bla]]><tag attr="abc"/>

<!-- / without > -->

<wrong/<tag attr="abc"/>
<wrong/<!--bla bla--><tag attr="abc"/>
<wrong/<![CDATA[bla bla]]><tag attr="abc"/>

<!-- mising attribute name -->

<wrong ="abc"/><tag attr="abc"/>
<wrong ="abc"/><!--bla bla-->
<wrong ="abc"/><![CDATA[bla bla]]>

<!-- invalid attribute name (missing space) -->

<wrong attr="abc"attr="abc"/><tag attr="abc"/>
<wrong attr="abc"attr="abc"/><!--bla bla-->
<wrong attr="abc"attr="abc"/><![CDATA[bla bla]]>

<!-- mising value attribute -->

<wrong attr/><tag attr="abc"/>
<wrong attr/><!--bla bla--><tag attr="abc"/>
<wrong attr/><![CDATA[bla bla]]><tag attr="abc"/>

<wrong attr=/><tag attr="abc"/>
<wrong attr=/><!--bla bla--><tag attr="abc"/>
<wrong attr=/><![CDATA[bla bla]]><tag attr="abc"/>

<!-- error followed by text -->

<wrong at
  bla bla bla
  bla bla bla

<wrong at
    attr="abc"
  bla bla bla
  bla bla bla