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Full Discussion: Replacing HTML tags with sed
Top Forums UNIX for Dummies Questions & Answers Replacing HTML tags with sed Post 302852867 by Corona688 on Thursday 12th of September 2013 02:08:25 PM
Old 09-12-2013
sed uses regexes, not globs, which explains part of your difficulty.

Code:
files*

In shell globbing, * means "anything else". In regex, it means "zero or more of the previous". So files* would match files, filess, filesssssssssssssssss, but wouldn't match files\

The regex equivalent would be .*, where . is a special character mean "match anything". But I'd try something a little trickier, to match > so that part of the regex doesn't scan outside the tag it started in. [] let you specify a range to include or exclude. [A-Z] would match a single letter in A-Z range. [^A-Z] would match a single character not in the A-Z range. [^>] would match anything that's not an end-of-tag character.

So, [^>]* would match zero or more non-> characters, swallowing up the rest of the tag and stopping right before >.

This works on the HTML you posted:
Code:
sed 's#<a href="files\\[^>]*><img src="thumbnails\\[^>]*></a>#<img src=redact.png>#g'

 

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Parser(3pm)						User Contributed Perl Documentation					       Parser(3pm)

NAME
HTML::StripScripts::Parser - XSS filter using HTML::Parser SYNOPSIS
use HTML::StripScripts::Parser(); my $hss = HTML::StripScripts::Parser->new( { Context => 'Document', ## HTML::StripScripts configuration Rules => { ... }, }, strict_comment => 1, ## HTML::Parser options strict_names => 1, ); $hss->parse_file("foo.html"); print $hss->filtered_document; OR print $hss->filter_html($html); DESCRIPTION
This class provides an easy interface to "HTML::StripScripts", using "HTML::Parser" to parse the HTML. See HTML::Parser for details of how to customise how the raw HTML is parsed into tags, and HTML::StripScripts for details of how to customise the way those tags are filtered. CONSTRUCTORS
new ( {CONFIG}, [PARSER_OPTIONS] ) Creates a new "HTML::StripScripts::Parser" object. The CONFIG parameter has the same semantics as the CONFIG parameter to the "HTML::StripScripts" constructor. Any PARSER_OPTIONS supplied will be passed on to the HTML::Parser init method, allowing you to influence the way the input is parsed. You cannot use PARSER_OPTIONS to set the "HTML::Parser" event handlers (see "Events" in HTML::Parser) since "HTML::StripScripts::Parser" uses all of the event hooks itself. However, you can use "Rules" (see "Rules" in HTML::StripScripts) to customise the handling of all tags and attributes. METHODS
See HTML::Parser for input methods, HTML::StripScripts for output methods. "filter_html()" "filter_html()" is a convenience method for filtering HTML already loaded into a scalar variable. It combines calls to "HTML::Parser::parse()", "HTML::Parser::eof()" and "HTML::StripScripts::filtered_document()". $filtered_html = $hss->filter_html($html); SUBCLASSING
The "HTML::StripScripts::Parser" class is subclassable. Filter objects are plain hashes. The hss_init() method takes the same arguments as new(), and calls the initialization methods of both "HTML::StripScripts" and "HTML::Parser". See "SUBCLASSING" in HTML::StripScripts and "SUBCLASSING" in HTML::Parser. SEE ALSO
HTML::StripScripts, HTML::Parser, HTML::StripScripts::LibXML BUGS
None reported. Please report any bugs or feature requests to bug-html-stripscripts-parser@rt.cpan.org, or through the web interface at <http://rt.cpan.org>. AUTHOR
Original author Nick Cleaton <nick@cleaton.net> New code added and module maintained by Clinton Gormley <clint@traveljury.com> COPYRIGHT
Copyright (C) 2003 Nick Cleaton. All Rights Reserved. Copyright (C) 2007 Clinton Gormley. All Rights Reserved. LICENSE
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.10.1 2009-11-05 Parser(3pm)
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