NAME
HTML::Untemplate - undo what the template engine does
VERSION
version 0.002
DESCRIPTION
Despite being named similarly to HTML::Template, this distribution is
not directly related to it. Instead, it attempts to reverse the
templating action, whatever the template agent used.
Why?
Suppose you have a CMS. Typical CMS works roughly as this (data flows
bottom-down):
RDBMS
scripting language
HTML
HTTP server
(...)
HTTP agent
layout engine
screen
user
Consider the first 3 steps: "RDBMS => scripting language => HTML"
This is "applying template".
Now, consider this: "HTML => scripting language => RDBMS"
I would call that "un-applying template", or "untemplate" ":)"
The practical application of this set of tools to assist in creation of
web scrappers.
CLI tools
xpathify
The xpathify tool flatterns the HTML tree into key/value list:
Hello HTML
Hello World!
This is a sample HTML
Beware!
HTML is not XML!
Have a nice day.
Becomes:
The keys are in XPath format, while the values are respective content
from the HTML tree. Theoretically, it could be possible to reassemble
the HTML tree from the flat key/value list this tool generates.
untemplate
The untemplate tool flatterns a set of HTML documents using the
algorithm from xpathify. Then, it strips the shared key/value pairs. The
"rest" is composed of original values fed into the template engine.
And this is how the result actually looks like with some simple
real-world examples (quotes 1839 and 2486
from bash.org ):
Modules
May be used to serialize/flattern HTML documents:
* HTML::Linear - represent HTML::Tree as a flat list
* HTML::Linear::Element - represent elements to populate HTML::Linear
* HTML::Linear::Path - represent paths inside HTML::Tree
SEE ALSO
* HTML::TreeBuilder
* HTML::Similarity
* XML::DifferenceMarkup
AUTHOR
Stanislaw Pusep
COPYRIGHT AND LICENSE
This software is copyright (c) 2012 by Stanislaw Pusep.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.