DZone Snippets: xslt code

Using the XSLT function document()

jrobertson (James Robertson) — Tue, 24 Jun 2008 14:09:11 GMT

I found an XSLT solution recently using the built-in function document() to include an additional XML document into the current XML document.

Using the file lunch.xml with drink.xml I can show what is available for today's lunch menu.

file: lunch.xml

file: drink.xml

file: lunch.xsl













  Food menu

  

  To eat

  

  

  

  To drink

output:





To eat



banana

apple

custard

crisps



To drinkorange

Quick-Prototype POJO with camelCase using XSLT

rtperson (Roger Turnau) — Mon, 23 Jun 2008 20:12:08 GMT

// If you've ever been frustrated trying to write an enormous POJO, here's a way to speed the
// process a little. It's far from perfect, and could use some tweaking, but this XSLT code will
// spit out a POJO much faster than you could do it by hand.



TableDDLs.xml



	


            

                            size="30" null="yes" />

            

        

        
	



			

			

			

			

			

			

		

		
	





CreatePOJOs.xsl





  

    

abcdefghijklmnopqrstuvwxyz

ABCDEFGHIJKLMNOPQRSTUVWXYZ



  

  

    

    

  

	



	

/**

 *     example of POJO output

 *

 */

	

package pojo;

	

import java.sql.Date;

	

/**

 * @author [your name here]

 *

 */

public class  {

		

			

			

    private  Long  String  Date   = null;

		

			

            

    public Long  String Date get() {

        return ;

    }

    

    public void set(Long String Date  ) {

        this. = ;

    }

		

		

	

}

		

-----------------------------------------------------------------------------------------------

		



    

    

        

            

            

 this. = null;

        

        

    

    

        

        

            

            

protected String  = null;

        

        

    

    

    

        

            

            

 = null;



        

        

    

	

	

	

		

			

					 ColumnName= 

				     CamelCasedColumn:

Converting text to SVG

jrobertson (James Robertson) — Fri, 18 Apr 2008 18:14:11 GMT

First of all the Ruby code reads the text, splits it into an array and then saves it in XML format.



require 'rexml/document'

include REXML



a = "Open source is a development method for software that harnesses the power of distributed peer 

review and transparency of process. The promise of open source is better quality, higher reliability, 

more flexibility, lower cost, and an end to predatory vendor lock-in.".split(' ') 



doc = Document.new

doc.add_element('text')

oline = Element.new('line')



char_count = 0

a.each do |word|

  

  oword = Element.new('word')

  oword.text = word.to_s

  oword.add_attribute('length',char_count)

  oline << oword 

  char_count += word.length

  

  if char_count > 50

    doc.root << oline

    oline = Element.new('line')

    char_count = 0

  end

end

doc.root << oline

puts char_count

puts doc

Here's a sample of the XML created





  

    Opensourceis

    adevelopmentmethod

    forsoftwarethat

    harnesses

  

  

    thepower

    ofdistributedpeer

    reviewandtransparency

    ofprocess.

  

  

    The

    promiseofopen

    sourceisbetter

    quality,higherreliability,

  

  

    moreflexibility,lower

    cost,andan

    endtopredatory

    vendor

  

  

    lock-in.

The XML is then transformed to SVG using the following XSL file











            method="xml"

            indent="yes"/>

            

  

                      xmlns:xlink="http://www.w3.org/1999/xlink" >

      

        

      

    

  

  

  

    12

    20

The final SVG output [twitxr.com] shows 5 lines of text with each word as a separate SVG text element.

Passing an XSL param from one template to another

jrobertson (James Robertson) — Fri, 18 Apr 2008 15:00:27 GMT





xmlns:xsl="http://www.w3.org/1999/XSL/Transform">





  

  

  

    

  

  

  







  

  

    Title:

source: XSLT Element [w3schools.com]

Using XSLT to generate SVG

jrobertson (James Robertson) — Thu, 17 Apr 2008 10:45:36 GMT

This XSL file is intended to be used as an SVG XSL template file which displays SVG content using Gorg (XSLT back-end processor).











            method="xml"

            indent="yes"/>

            

  

                  xmlns:xlink="http://www.w3.org/1999/xlink" >

Reference: 'using XSLT to generate SVG' http://snurl.com/24pwo [carto.net]

Format Ruby code in HTML

jrobertson (James Robertson) — Tue, 26 Feb 2008 15:43:38 GMT

This code uses the Ruby gem 'syntax' to create an XML file containing the HTML tags around the code, which is then transformed into an HTML file. The working example was first built using coding examples from Howto format ruby code for blogs [wolfman.com] and Formatting Ruby and HTML code for blog posting [blogspot.com]



#!/usr/bin/ruby



#file: ruby2html.rb 



require 'rubygems'

require 'syntax/convertors/html'

require 'projxslt' # <- this is my own class to do an XSLT transform 

require 'rexml/document'

include REXML



class Ruby2Html

  def initialize(rubyfile, htmlfile)

    code = File.read(rubyfile)

    convertor = Syntax::Convertors::HTML.for_syntax "ruby"

    code_html = convertor.convert(code)

    

    tempfile = '../temp/ruby2html.xml'

    xslfile = '../ruby2html/ruby2html.xsl'

    save_file(tempfile, code_html)

    

    px = Projxslt.new(tempfile, xslfile)

    buffer = px.transform()

    save_file(htmlfile, buffer)

    

  end

  

  def save_file(filename, buffer)

    file = File.new(filename, 'w')

    file.puts buffer

    file.close

  end

end



if __FILE__ == $0

  r2h = Ruby2Html.new('ruby2html.rb', '../temp/ruby2html.html')

  puts 'completed'

end

file: ruby2html.xsl



                xmlns="http://www.w3.org/1999/xhtml"

                version="1.0">



            doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"

          encoding="ISO-8859-1"/> 



	

	



        

          Sample code

Here's the output from the formatted Ruby HTML code [twitxr.com]

Referemce: Syntax Manual [rubyforge.org]

Display a filtered list using XSLT

jrobertson (James Robertson) — Tue, 26 Feb 2008 11:47:59 GMT

Following on from the post A simple XSLT example [dzone.com], this code lists all files which have the type 'rb' (equivalent to ls *.rb).

file: dir.xsl

output:





  

    projxmlhelper.rb

    feedpopulated.rb

    squrl_handler.rb

    password_handler.rb

    category.rb

    gwd.rb

*update 11:58am 26-Feb*
Here's a filter I will be using in my projects

A simple XSLT example

jrobertson (James Robertson) — Mon, 25 Feb 2008 21:44:02 GMT

Produce a list of filenames using XML and XSLT

file: dir.xsl

file: dir.xml





  

    ./

  

  

    mjournal.xml

    projxmlhelper.rb

    feedpopulated.rb

    squrl_handler.rb

    snurl.cgi

    dynalert.cgi

    password_handler.rb

    category.rb

    gwd.rb

    new-journal-entry.cgi

then transforming the XML with the command 'xsltproc dir.xsl dir.xml' produces the following:
output:





  

    mjournal.xml

    projxmlhelper.rb

    feedpopulated.rb

    squrl_handler.rb

    snurl.cgi

    dynalert.cgi

    password_handler.rb

    category.rb

    gwd.rb

    new-journal-entry.cgi

Save a Ruby source text file to XML.

jrobertson (James Robertson) — Fri, 22 Feb 2008 15:18:00 GMT

This code will output a text file as an XML file which can later be transformed into an HTML file using a back-end XSLT processor called Gorg.



#!/usr/bin/ruby 



#file: rubytxt2xml.rb



require 'rexml/document'

include REXML



class RubyTxt2XML

  

  def rubytxt2xml(h)

    h[:infilepath] = './' if h[:infilepath].nil?

    h[:outfilepath] = './' if h[:outfilepath].nil?

    h[:xmlfile] = h[:sourcefile][/^(.*)\.\w+$/,1] + '.xml' if h[:xmlfile].nil?

    buffer = File.new(h[:infilepath] + h[:sourcefile],'r').read

    

    doc = Document.new

    doc.add_element('ruby_txt')

    body = Element.new('source')

    body.text = CData.new(buffer)

    doc.root.add_element(body)

    

    file = File.new(h[:outfilepath] + h[:xmlfile],'w')

    file.puts doc

    file.close

    

  end

end



if __FILE__ == $0

  rt2x = RubyTxt2XML.new

  rt2x.rubytxt2xml(:sourcefile  => 'rubytxt2xml.rb')

end

output:





  

          #!/usr/bin/ruby 



      #file: rubytxt2xml.rb



      require 'rexml/document'

      include REXML



      class RubyTxt2XML

        

        def rubytxt2xml(h)

          h[:infilepath] = './' if h[:infilepath].nil?

          h[:outfilepath] = './' if h[:outfilepath].nil?

          h[:xmlfile] = h[:sourcefile][/^(.*)\.\w+$/,1] + '.xml' if h[:xmlfile].nil?

          buffer = File.new(h[:infilepath] + h[:sourcefile],'r').read

          

          doc = Document.new

          doc.add_element('ruby_txt')

          body = Element.new('source')

          body.text = CData.new(buffer)

          doc.root.add_element(body)

          

          file = File.new(h[:outfilepath] + h[:xmlfile],'w')

          file.puts doc

          file.close

          

        end

      end



      if __FILE__ == $0

        rt2x = RubyTxt2XML.new

        rt2x.rubytxt2xml(:sourcefile  => 'rubytxt2xml.rb')

      end

    ]]>

Using XSLT to convert a value to upper or lowercase

jrobertson (James Robertson) — Thu, 21 Feb 2008 20:20:47 GMT

This code was copied from XSLT Case Conversion Solution [topxml.com]

Firstly lets place all the letters of the alphabet, lower case and upper case in variables.

abcdefghijklmnopqrstuvwxyz

ABCDEFGHIJKLMNOPQRSTUVWXYZ

To then convert our data to upper case we use the translate method, which replaces all the lower case characters with upper case.

Lower Case Transformation

The lower case transformation is basically the same: