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NAME

       MKDoc::XML::Stripper - Remove unwanted XML / XHTML tags and attributes

SYNOPSIS

         use MKDoc::XML::Stripper;

         my $stripper = new MKDoc::XML::Stripper;
         $stripper->allow (qw /p class id/);

         my $ugly = '<p class="para" style="color:red">Hello, <strong>World</strong>!</p>';
         my $neat = $stripper->process_data ($ugly);
         print $neat;

       Should print:

         <p class="para">Hello, World!</p>

SUMMARY

       MKDoc::XML::Stripper is a class which lets you specify a set of tags
       and attributes which you want to allow, and then cheekily strip any XML
       of unwanted tags and attributes.

       In MKDoc, this is used so that editors use structural XHTML rather than
       presentational tags, i.e. strip anything which looks like a <font> tag,
       a 'style' attribute or other tags which would break separation of
       structure from content.

DISCLAIMER

       This module does low level XML manipulation. It will somehow parse even
       broken XML and try to do something with it. Do not use it unless you
       know what you're doing.

API

   my $stripper = MKDoc::XML::Stripper->new()
       Instantiates a new MKDoc::XML::Stripper object.

   $stripper->load_def ($def_name);
       Loads a definition located somewhere in @INC under MKDoc/XML/Stripper.

       Available definitions are:

       xhtml10frameset
       xhtml10strict
       xhtml10transitional
       mkdoc16 - MKDoc 1.6. XHTML structural markup

       You can also load your own definition file, for instance:

         $stripper->load_def ('my_def.txt');

       Definitions are simple text files as follows:

         # allow p with 'class' and id
         p class
         p id

         # allow more stuff
         td class
         td id
         td style

         # etc...

   $stripper->allow ($tag, @attributes)
       Allows "<$tag>" to appear in the stripped XML. Additionally, allows
       @attributes to appear as attributes of <$tag>, so for instance:

         $stripper->allow ('p', 'class', 'id');

       Will allow the following:

         <p>
         <p class="foo">
         <p id="bar">
         <p class="foo" id="bar">

       However any extra attributes will be stripped, i.e.

         <p class="foo" id="bar" style="font-color: red">

       Will be rewritten as

         <p class="foo" id="bar">

   $stripper->disallow ($tag)
       Explicitly disallows a tag and all its associated attributes.  By
       default everything is disallowed.

   $stripper->process_data ($some_xml);
       Strips $some_xml according to the rules that were given with the
       allow() and disallow() methods and returns the result. Does not modify
       $some_xml in place.

   $stripper->process_file ('/an/xml/file.xml');
       Strips '/an/xml/file.xml' according to the rules that were given with
       the allow() and disallow() methods and returns the result. Does not
       modify '/an/xml/file.xml' in place.

NOTES

       MKDoc::XML::Stripper does not really parse the XML file you're giving
       to it nor does it care if the XML is well-formed or not. It uses
       MKDoc::XML::Tokenizer to turn the XML / XHTML file into a series of
       MKDoc::XML::Token objects and strictly operates on a list of tokens.

       For this same reason MKDoc::XML::Stripper does not support namespaces.

AUTHOR

       Copyright 2003 - MKDoc Holdings Ltd.

       Author: Jean-Michel Hiver

       This module is free software and is distributed under the same license
       as Perl itself. Use it at your own risk.

SEE ALSO

       MKDoc::XML::Tokenizer MKDoc::XML::Token



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