XML Tutorial/XSLT stylesheet/id — различия между версиями

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Текущая версия на 11:26, 26 мая 2010

Compare id

   <source lang="xml">

File: Data.xml <?xml version="1.0" encoding="US-ASCII"?> <?xml-stylesheet href="Transform.xslt" type="text/xsl"?> <uscities>

<western>
 <uscity state="Nevada">Las Vegas</uscity>
 <uscity state="Arizona">Phoenix</uscity>
 <uscity state="California">San Francisco</uscity>
 <uscity state="Nevada">Silver City</uscity>
 <uscity state="Washington">Seattle</uscity>
 <uscity state="Montana">Missoula</uscity>
</western>

</uscities> File: Transform.xslt <?xml version="1.0" encoding="US-ASCII"?> <xsl:stylesheet version="1.0"

 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output method="html" />
 <xsl:key name="list" match="uscity" use="@state" />
 <xsl:template match="/">
   <html>
     <head>
       <title>Western State Cities</title>
     </head>
     <body>
       <xsl:for-each
         select="/uscities/western/uscity[generate-id(.)=generate-id(key("list", @state))]/@state">
         <xsl:sort />

<xsl:value-of select="." />

    <xsl:for-each select="key("list", .)"> <xsl:sort />
  • <xsl:value-of select="." />
  •            </xsl:for-each>
    
       </xsl:for-each>
     </body>
   </html>
 </xsl:template>

</xsl:stylesheet> Output: <html>

  <head>
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
     <title>Western State Cities</title>
  </head><body>

Arizona

  • Phoenix

California

  • San Francisco

Montana

  • Missoula

Nevada

  • Las Vegas
  • Silver City

Washington

  • Seattle
  </body>

</html></source>


Here is a test of the id()

   <source lang="xml">

File: Data.xml <?xml version="1.0"?> <parts-list>

 <component component-id="1111111">
   <name>Book</name>
   <partref refid="1"/>
   <partref refid="2"/>
   <partref refid="3"/>
   <partref refid="4"/>
   <description>
      
       <partref refid="3"/>.
   </description>
 </component>
 <component component-id="5">
   <name>name 1</name>
   <partref refid="6"/>
   <partref refid="7"/>
   <description>
     <partref refid="6"/> and a 
     <partref refid="7"/>.
   </description>
 </component>
 <part part-id="6" supplier="4839">
   <name>Pitter</name>
   <description>
     desc6
   </description>
 </part>
 <part part-id="7" supplier="2983">
   <name>Patter</name>
   <description>
     desc7
   </description>
 </part>
 <part part-id="2" supplier="5910">
   <name>Spanner</name>
   <description>
     You can"t fix anything without one.
   </description>
 </part>
 <supplier country="Great Britain" vendor-id="4839">
   <name>A Inc.</name>
 </supplier>
 <supplier country="Germany" vendor-id="2983">
   <name>D</name>
 </supplier>
 <supplier country="Great Britain" vendor-id="5910">
   <name>U Ltd.</name>
 </supplier>

</parts-list> File: Transform.xslt <?xml version="1.0"?>

<xsl:stylesheet version="1.0"

 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output method="text"/>
 <xsl:template match="/">
   <xsl:text>
Here is a test of the id() </xsl:text>
   <xsl:text>function in reverse:
</xsl:text>
   <xsl:for-each select="/parts-list/part">
     <xsl:text>
  </xsl:text>
     <xsl:value-of select="name"/>
     <xsl:text> (part #</xsl:text>
     <xsl:value-of select="@part-id"/>
     <xsl:text>) is used in these products:
    </xsl:text>
     <xsl:for-each 
       select="/parts-list/component
               [partref/@refid=current()/@part-id]">
       <xsl:value-of select="name"/>
       <xsl:if test="position() != last()">
         <xsl:text>
    </xsl:text>
       </xsl:if>
     </xsl:for-each>
     <xsl:text>
</xsl:text>
   </xsl:for-each>
 </xsl:template>

</xsl:stylesheet> Output:



Here is a test of the id()

   function in reverse:



      (part #
     
     ) is used in these products:</source>
   
  

id() takes a string as its argument and returns a node-set containing any node that has an attribute of type ID equal to the function"s argument

   <source lang="xml">

File: Data.xml <?xml version="1.0"?> <parts-list>

 <component component-id="1111111">
   <name>Book</name>
   <partref refid="1"/>
   <partref refid="2"/>
   <partref refid="3"/>
   <partref refid="4"/>
   <description>
       <partref refid="3"/>.
   </description>
 </component>
 <component component-id="5">
   <name>name 1</name>
   <partref refid="6"/>
   <partref refid="7"/>
   <description>
     <partref refid="6"/> and a 
     <partref refid="7"/>.
   </description>
 </component>
 <part part-id="6" supplier="4839">
   <name>Pitter</name>
   <description>
     desc6
   </description>
 </part>
 <part part-id="7" supplier="2983">
   <name>Patter</name>
   <description>
     desc7
   </description>
 </part>
 <part part-id="2" supplier="5910">
   <name>Spanner</name>
   <description>
     You can"t fix anything without one.
   </description>
 </part>
 <supplier country="Great Britain" vendor-id="4839">
   <name>A Inc.</name>
 </supplier>
 <supplier country="Germany" vendor-id="2983">
   <name>D</name>
 </supplier>
 <supplier country="Great Britain" vendor-id="5910">
   <name>U Ltd.</name>
 </supplier>

</parts-list> File: Transform.xslt <?xml version="1.0"?>

<xsl:stylesheet version="2.0"

 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output method="text"/>
 <xsl:template match="/">
   <xsl:text>
Here is a test of the id() </xsl:text>
   <xsl:text>function:
</xsl:text>
   <xsl:for-each select="/parts-list/component">
     <xsl:text>
  </xsl:text>
     <xsl:value-of select="name"/>
     <xsl:text> (component #</xsl:text>
     <xsl:value-of select="@component-id"/>
     <xsl:text>) uses these parts:
    </xsl:text>
     <xsl:for-each select="id(partref/@refid)">
       <xsl:value-of select="name"/>
       <xsl:text>
    </xsl:text>
     </xsl:for-each>
   </xsl:for-each>
 </xsl:template>

</xsl:stylesheet> Output:

Here is a test of the id() function:

 Book (component #1111111) uses these parts:
   
 name 1 (component #5) uses these parts:</source>
   
  

select by id()

   <source lang="xml">

File: Data.xml <?xml version="1.0" encoding="UTF-8"?> <provinces>

<province id="AB">
 <name>Alberta</name>
 <abbreviation>AB</abbreviation>
</province>
<province id="BC">
 <name>British Columbia</name>
 <abbreviation>BC</abbreviation>
</province>
<province id="MB">
 <name>Manitoba</name>
 <abbreviation>MB</abbreviation>
</province>
<province id="NB">
 <name>New Brunswick</name>
 <abbreviation>NB</abbreviation>
</province>

</provinces>

File: Transform.xslt <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="1.0"

 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output method="text" />
 <xsl:template match="provinces">
   <xsl:apply-templates select="id("NU")" />
 </xsl:template>
 <xsl:template match="id("NU")">
   <xsl:value-of select="name" />
 </xsl:template>

</xsl:stylesheet></source>


The id function selects elements by their unique ID.

   <source lang="xml">

File: Data.xml <?xml version="1.0" encoding="utf-8"?>

 <chapter id="intro">Introduction</chapter>
 <chapter id="body">
   <title id="t1">BODY</title>
   <text value="text1">text text text</text>
 </chapter>
 <chapter id="end">THE END</chapter>

File: Transform.xslt <?xml version="1.0" encoding="utf-8"?> <xsl:stylesheet

     version="1.0"
     xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
   <xsl:template match="/">
     <paragraph>
       <xsl:value-of select="id("intro")"/>
     </P>
     <paragraph>
       <xsl:value-of select="id("body")/text"/>
     </P>
     <paragraph>
       <xsl:value-of select="id("text1")"/>
     </P>
   </xsl:template>

</xsl:stylesheet> Output: <?xml version="1.0" encoding="UTF-8"?><P/><P/><P/></source>