From: Keith Fahlgren <keith@...>
Date: 2006-02-16T22:39:33+09:00
Subject: Re: XML Builder - why?

On Thursday 16 February 2006 1:33 am, eastcoastcoder@gmail.com wrote:
> I see that a lot of Rubyists like using XML Builder to generate XML.
> why took this even further with markaby to generate HTML.

Well, I don't really use Builder for HTML, but generate quite a lot of 
XML with it. Here's one simple use I like (make XSLT search-and-replace 
with simple YAML):

#!/usr/bin/env ruby
require 'yaml'
require 'rubygems'
require_gem 'builder', '~> 1.2'

ARGV.each do |arg|
  yml = YAML::load(File.open(arg))

  b = Builder::XmlMarkup.new(:target => STDOUT,
                                   :indent => 2)
  b.xsl :stylesheet, "version"    =>"1.0",
                     "xmlns:xsl"  
=>"http://www.w3.org/1999/XSL/Transform" do
    b.xsl :output, "method" =>"xml", "encoding"=>"ascii", 
"cdata-section-elements=>"_facet"

    b.comment!("Default Rule")
    b.xsl :template, "match"=>"@*|node()" do
      b.xsl :copy do
        b.xsl :"apply-templates", "select"=>"@*|node()"
      end # xsl:template
    end  # xsl:copy

    yml.each { |outkey, outvalue|
      outvalue.each { |key, value|
        b.xsl :template, "match"=>"#{outkey}[. = 
&quot;&#96;#{key}&apos;&quot;]" do
          b.xsl :copy, "`#{value}'"
          # b.xsl :message, "Matched #{key}"
        end
      } # end of outvalue.each
    } # end of yaml.each
  end
end