�� XML

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HTML �� link �� '�� , �� XML �� . �� , �� ��  xml-stylesheet �� :

<?xml-stylesheet href="my-style.css" type="text/css"?>
... ����� ��������� ���...

ֳ �� (��) �� . type="text/css" �� , �� : �� CSS, �� , �� .

�� HTML link, �� xml-stylesheet � �� , �� .

�� . �� , �� : ��, �� (� ��, ��, �� .�.) � �� , �� . �� , � �� , �� . �� , �� . �� . �� :

/* common.css */
INSTRUMENT { display: inline }
ARTICLE, HEADLINE, AUTHOR, PARA { display: block }

�� "modern.css":

/* modern.css */
ARTICLE { font-family: sans-serif; background: white; color: black }
AUTHOR { margin: 1em; color: red }
HEADLINE { text-align: right; margin-bottom: 2em }
PARA { line-height: 1.5; margin-left: 15% }
INSTRUMENT { color: blue }

� �� , �� "classic.css":

/* classic.css */
ARTICLE { font-family: serif; background: white; color: #003 }
AUTHOR { font-size: large; margin: 1em 0 }
HEADLINE { font-size: x-large; margin-bottom: 1em }
PARA { text-indent: 1em; text-align: justify }
INSTRUMENT { font-style: italic }

�� XML � �� , ��'�� , �� :

<?xml-stylesheet href="common.css" type="text/css"?>
<?xml-stylesheet href="modern.css" title="Modern" media="screen"
  type="text/css"?>
<?xml-stylesheet href="classic.css" alternate="yes"
  title="Classic" media="screen, print" type="text/css"?>
<ARTICLE>
  <HEADLINE>Fredrick the Great meets Bach</HEADLINE>
  <AUTHOR>Johann Nikolaus Forkel</AUTHOR>
  <PARA>
    One evening, just as he was getting his 
    <INSTRUMENT>flute</INSTRUMENT> ready and his
    musicians were assembled, an officer brought him a list of
    the strangers who had arrived.
  </PARA>
</ARTICLE>

�� . �� W3C “��'�� XML”

��

ϳ��: ��

HTML �� style, �� HTML �� . � �� , ��, �� .

�� , �� XML, �� , �� , �� '�� , �� , �� . � �� 2006, �� , � �� . ��:

<?xml-stylesheet href="#style" type="text/css"?>
<ARTICLE>
  <EXTRAS id="style">
    INSTRUMENT { display: inline }
    ARTICLE, HEADLINE, AUTHOR, PARA { display: block }
    EXTRAS { display: none }
  </EXTRAS>
  <HEADLINE>Fredrick the Great meets Bach</HEADLINE>
  ...
</ARTICLE>

� �� type="text/css", �� (�� ) �� . �� xml-stylesheet �� , � �� . �� id, �� . (�� XML, �� id �� -��; � �� .)

��

�� W3C “��'�� XML” �� , �� URL (�� “#”). � �� , �� 2006 ��, �� , �� . �� :

��-�� , �� , �� , �� . � �� type. �� , �� , �� : �� ? �� CSS? �� ?
� �� , �� XML, �� , � �� . �� , �� <ARTICLE> � �� , �� , �� , �� , �� , �� , � �� .
�� , �� , �� , �� . �� ? � �� ? ��, ��, �� ?
� �� URL �� . �� , �� URL, ��, �� , �� XML �, ��, �� . �� URL, �� �� ��. �� , �� , �� . �� type �� , � �� , �� . �� , �� type �� , �� .
�� “Generic XML,” �� , �� . �� , ��, �� . ³�� , �� SVG, SMIL �� XHTML, �� , �� . �� , �� , �� , �� Generic XML: ��, �� , �� ID. �� W3C �� xml:id, � �� , ��, �� URL �� . �� , �� , �� ID. �� DOCTYPE �� DTD, �� , �� DTD �� . �� DTD �� DOCTYPE.
�� - �� . �� W3C �� XPointers �� ID. �� XPointers �� , �� PI � �� , �� XPointers, �� .

��

HTML �� style . �� , �� XML, �� , �� (��) HTML �� .

��

ϳ��: ��

�� class, �� HTML, �� XML. ��, CSS �� , �� -�� , �� class, �� .

�� . �� class � �� , �� , �� HTML, �� . (�� , �� <doc> �� , �� , �� , �� class)

<?xml-stylesheet href="#s1" type="text/css"?>
<doc>
  <s id="s1">
    s { display: none }
    p { display: block }
    p.note { color: red }
  </s>
  <p>Some text... </p>
  <p class="note">A note... </p>
</doc>

�� , �� class �� , �� "[ ]":

<?xml-stylesheet href="#s1" type="text/css"?>
<doc>
  <s id="s1">
    s { display: none }
    p { display: block }
    p[class~=note] { color: red }
  </s>
  <p>Some text... </p>
  <p class="note">A note... </p>
</doc>

�� class ��, �� , �� , �� "[ ]":

��

<?xml-stylesheet href="#s1" type="text/css"?>
<doc>
  <s id="s1">
    s { display: none }
    p { display: block }
    p[warning="yes"] { color: red }
  </s>
  <p>Some text... </p>
  <p warning="yes">A note... </p>
</doc>

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