RegEx Help

boomers · 05-03-2006, 03:57 PM

Hey there...
????: NamePros.com http://www.namepros.com/programming/193686-regex-help.html

Im trying to make a regex query that will strip down all the non-relevant HTML to leave just the hyperlink info.

An example of the hyperlink HTML is...

HTML Code:

<a href="http://www.url.com/blah.htm" class=underline><b>Vist My Page</b></a>

And all I want to be left with is the actual URL http://www.url.com/blah.htm And the wording for this link 'Visit My Page'

Obviously the link changes as there are alot in the actual HTML of the page... as does the text for it, but theyre always inbetween the bold tags.

So far I think ive got the URL by using:
http(s)?://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?

But Im not 100% sure on how to get the text of the link along with it. Any help would be greatly appreciated

If it makes any difference im planning on using this with .net

tm · 05-07-2006, 08:00 AM

Perhaps this might be useful to you.

PHP Code:

  <?php

// $document should contain an HTML document.

// This will remove HTML tags, javascript sections

// and white space. It will also convert some

// common HTML entities to their text equivalent.

$search = array ('@<script[^>]*?>.*?</script>@si', // Strip out javascript

                 '@<[\/\!]*?[^<>]*?>@si',          // Strip out HTML tags

                 '@([\r\n])[\s]+@',                // Strip out white space

                 '@&(quot|#34);@i',                // Replace HTML entities

                 '@&(amp|#38);@i',

                 '@&(lt|#60);@i',

                 '@&(gt|#62);@i',

                 '@&(nbsp|#160);@i',

                 '@&(iexcl|#161);@i',

????: NamePros.com http://www.namepros.com/showthread.php?t=193686
                 '@&(cent|#162);@i',

                 '@&(pound|#163);@i',

                 '@&(copy|#169);@i',

                 '@&#(\d+);@e');                    // evaluate as php

 
$replace = array ('',

                 '',

                 '\1',

                 '"',

                 '&',

                 '<',

                 '>',

                 ' ',

                 chr(161),

                 chr(162),

                 chr(163),

                 chr(169),

                 'chr(\1)');

 
$text = preg_replace($search, $replace, $document);

????: NamePros.com http://www.namepros.com/showthread.php?t=193686
?>

Found on http://uk.php.net/manual/en/function.preg-replace.php

05-03-2006, 03:57 PM	THREAD STARTER #1 (permalink)
boomers NamePros Regular Join Date: Jun 2005 Posts: 518	RegEx Help Hey there... ????: NamePros.com http://www.namepros.com/programming/193686-regex-help.html Im trying to make a regex query that will strip down all the non-relevant HTML to leave just the hyperlink info. An example of the hyperlink HTML is... HTML Code: <a href="http://www.url.com/blah.htm" class=underline><b>Vist My Page</b></a> And all I want to be left with is the actual URL http://www.url.com/blah.htm And the wording for this link 'Visit My Page' Obviously the link changes as there are alot in the actual HTML of the page... as does the text for it, but theyre always inbetween the bold tags. So far I think ive got the URL by using: http(s)?://([\w-]+\.)+[\w-]+(/[\w- ./?%&=])? But Im not 100% sure on how to get the text of the link along with it. Any help would be greatly appreciated If it makes any difference im planning on using this with .net __________________ Free Horse Racing Tips*

05-07-2006, 08:00 AM	#2 (permalink)
tm Senior Member Join Date: Nov 2005 Location: on a oil rig just off Ireland Posts: 1,408	Perhaps this might be useful to you. PHP Code: <?php // $document should contain an HTML document. // This will remove HTML tags, javascript sections // and white space. It will also convert some // common HTML entities to their text equivalent. $search = array ('@<script[^>]?>.?</script>@si', // Strip out javascript '@<[\/\!]?[^<>]?>@si', // Strip out HTML tags '@([\r\n])[\s]+@', // Strip out white space '@&(quot\|#34);@i', // Replace HTML entities '@&(amp\|#38);@i', '@&(lt\|#60);@i', '@&(gt\|#62);@i', '@&(nbsp\|#160);@i', '@&(iexcl\|#161);@i', ????: NamePros.com http://www.namepros.com/showthread.php?t=193686 '@&(cent\|#162);@i', '@&(pound\|#163);@i', '@&(copy\|#169);@i', '@&#(\d+);@e'); // evaluate as php $replace = array ('', '', '\1', '"', '&', '<', '>', ' ', chr(161), chr(162), chr(163), chr(169), 'chr(\1)'); $text = preg_replace($search, $replace, $document); ????: NamePros.com http://www.namepros.com/showthread.php?t=193686 ?> Found on http://uk.php.net/manual/en/function.preg-replace.php __________________ You design in photoshop, I code into valid XHTML/CSS. Professional PSD, PNG or HTML to tableless XHTML/CSS designs. For more info, send me a PM.

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