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UNIX for Beginners Questions & Answers
How to remove unused html codes from the file using UNIX?
Post 303037662 by karthik adiga on Friday 9th of August 2019 03:57:54 AM
08-09-2019
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LEARN ABOUT DEBIAN
html::clean
HTML::Clean(3pm) User Contributed Perl Documentation HTML::Clean(3pm) NAME
HTML::Clean - Cleans up HTML code for web browsers, not humans SYNOPSIS
use HTML::Clean; $h = new HTML::Clean($filename); # or.. $h = new HTML::Clean($htmlcode); $h->compat(); $h->strip(); $data = $h->data(); print $$data; DESCRIPTION
The HTML::Clean module encapsulates a number of common techniques for minimizing the size of HTML files. You can typically save between 10% and 50% of the size of a HTML file using these methods. It provides the following features: Remove unneeded whitespace (begining of line, etc) Remove unneeded META elements. Remove HTML comments (except for styles, javascript and SSI) Replace tags with equivilant shorter tags (<strong> --> <b>) etc. The entire proces is configurable, so you can pick and choose what you want to clean. THE HTML
::Clean CLASS $h = new HTML::Clean($dataorfile, [$level]); This creates a new HTML::Clean object. A Prerequisite for all other functions in this module. The $dataorfile parameter supplies the input HTML, either a filename, or a reference to a scalar value holding the HTML, for example: $h = new HTML::Clean("/htdocs/index.html"); $html = "<strong>Hello!</strong>"; $h = new HTML::Clean($html); An optional 'level' parameter controls the level of optimization performed. Levels range from 1 to 9. Level 1 includes only simple fast optimizations. Level 9 includes all optimizations. $h->initialize($dataorfile) This function allows you to reinitialize the HTML data used by the current object. This is useful if you are processing many files. $dataorfile has the same usage as the new method. Return 0 for an error, 1 for success. $h->level([$level]) Get/set the optimization level. $level is a number from 1 to 9. $myref = $h->data() Returns the current HTML data as a scalar reference. strip(\%options); Removes excess space from HTML You can control the optimizations used by specifying them in the %options hash reference. The following options are recognized: boolean values (0 or 1 values) whitespace Remove excess whitespace shortertags <strong> -> <b>, etc.. blink No blink tags. contenttype Remove default contenttype. comments Remove excess comments. entities " -> ", etc. dequote remove quotes from tag parameters where possible. defcolor recode colors in shorter form. (#ffffff -> white, etc.) javascript remove excess spaces and newlines in javascript code. htmldefaults remove default values for some html tags lowercasetags translate all HTML tags to lowercase parameterized values meta Takes a space separated list of meta tags to remove, default "GENERATOR FORMATTER" emptytags Takes a space separated list of tags to remove when there is no content between the start and end tag, like this: <b></b>. The default is 'b i font center' Please note that if your HTML includes preformatted regions (this means, if it includes <pre>...</pre>, we do not suggest removing whitespace, as it will alter the rendered defaults. HTML::Clean will print out a warning if it finds a preformatted region and is requested to strip whitespace. In order to prevent this, specify that you don't want to strip whitespace - i.e. $h->strip( {whitespace => 0} ); compat() This function improves the cross-platform compatibility of your HTML. Currently checks for the following problems: Insuring all IMG tags have ALT elements. Use of Arial, Futura, or Verdana as a font face. Positioning the <TITLE> tag immediately after the <head> tag. defrontpage(); This function converts pages created with Microsoft Frontpage to something a Unix server will understand a bit better. This function currently does the following: Converts Frontpage 'hit counters' into a unix specific format. Removes some frontpage specific html comments SEE ALSO
Modules FrontPage::Web, FrontPage::File Web Sites Distribution Site - http://people.itu.int/~lindner/ AUTHORS
Paul Lindner for the International Telecommunication Union (ITU) COPYRIGHT
The HTML::Strip module is Copyright (c) 1998,99 by the ITU, Geneva Switzerland. All rights reserved. You may distribute under the terms of either the GNU General Public License or the Artistic License, as specified in the Perl README file. perl v5.8.8 2008-03-07 HTML::Clean(3pm)