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following a bit of work this morning trying to get something to strip out arbitrary html but leave 'known' tags in place, we have come up with the following which may be useful. This uses the 'negative lookahead' construct using '?!' It looks for an angle bracket and perhaps a backslash, as long as it is *not* followed by one of the terms in the ?! section. The brackets in this section do not return a value, they are part of the construct. This regexp can therefore be used to replace all unknown tags with blanks. Obviously you can add other 'good' html tags to the list.

following a bit of work this morning trying to get something to strip out arbitrary html but leave 'known' tags in place, we have come up with the following which may be useful. This uses the 'negative lookahead' construct using '?!' It looks for an angle bracket and perhaps a backslash, as long as it is *not* followed by one of the terms in the ?! section. The brackets in this section do not return a value, they are part of the construct. This regexp can therefore be used to replace all unknown tags with blanks. Obviously you can add other 'good' html tags to the list.

This should match all valid HTML 4.01 tags as a browser would recognize. If you miss a 2nd " it will continue until it finds one to pair with, so if it doesn't find one, it continues until the end. This is how most browsers work I believe. It does have a few flaws, it will match </img> and </input> which is weird, but perhaps I'll fix that eventually.

This is very similar to my other expression, except it only matches tags that a browser would read, so if you have an extra " in the tag, it will not count it, and move onto the next possibility.

This is expression is good if you need to clean up some code (like from using DW Design View or Front Page). Just the "tag1" and "tag2" with the tags you want, and you can add more by putting a | inbetween each tag.

Removes all the text between two tags. Replace the "tag1" and "tag2" with the tag you want to remove, you can add more by placing additional "|" between each tag.

This .NET regex will match "SomeText" while not between the words "aaa" and "bbb". A good use of this is to find certain text while you are not inside of a certain HTML tag.

Mathes any HTML tag with any parameters. Very useful to clean HTML of a text.

Mathes any HTML tag with any parameters and HTML Comments. Very useful to clean HTML of a text.

No idea whether anyone would ever need this, but I had to work half a day on this pattern, so I decided to share it. :) It was never meant for productive use at all; it was rather to filter out all that annoying event handling stuff to find a bug in my DHTML table-generating script. Give it a try with this string (see details): <div id="TSelect_TD_value_911" class="TSel" onpaste="" onblur="TSelectClose(this);" onClick="TSelectOpen(this);" style="width:250px; padding:2px;">

Gets simple tags without parameters

This pattern can find any HTML tag. It supports attributes whose values may be enclosed between single or double quotes. It aslo support spaces between delimeters.

Quick and dirty extraction of quoted HTML attributes if you begin with just the tag string. Not intended for use in a full HTML document.

This expression will capture font tags(or any other HTML tag if you change the word font in the expression) with parameters and stop at the closing font tag bracket. The only keyboard characters it will not find between the starting and ending bracket are additional brackets. So for example if you are looking for image tags it will not find <img src="..." alt=">My Picture<"> due to the nested brackets. When I allowed nested brackets like this the expression did not always return only the tag I was looking for. Sometimes it returned additional tags at the end so I suggest staying away from brackets in alt text and anywhere else you may be allowed to do it.

This regex will match all HTML tags except 'a' tags or 'img' tags. You can edit the list of exclusions as you see fit. I use this regex to strip all HTML tags from source data except anchor tags and image tags.

This regular expression will match only <script> and <style> tags and all content between them. Use this with regex.replace to strip script blocks and style blocks from HTML source.

This Regex Will Remove All Html Tags And Return Simple Plain Text . For Example In C#.NET : Regex.Replace(Html, "<[^>]*>", string.Empty);

This will identify all the characters in between html tags irrespective of the length of the character or intiger. If scenario emerges to extract content between tags a replacement string can be used: $3

This regex will remove the HTML tags with content

validates HTML tags