Thanks for the detail - for context, here is exactly what I'm trying to do.

I am doing revision control for html documents. I am getting diffs (in unified format) from the rcs files. I want to communicate these diffs in html format using the <ins></ins>  <del></del> html tags.

Those tags are strange in html because if they are started within a block-level html tag, they stop working if other block-level elements are inside.

So, 

<ins>
<p>blah blah<blockquote>blah</blockquote>blah<p>
</ins>

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will not render properly; meaning the style elements given to <ins> will not continue until the end of the <ins> block.

Also, 

<p><ins>blah blah<blockquote>blah</blockquote>blah</ins><p>

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will not render either. My best idea for a workaround is: 
<p><ins>blah blah</ins>
<blockquote><ins>blah</ins></blockquote>
<ins>blah</ins>
<p>

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(Note that some of the html has just <p> tags, while other html has the <p></p> pairings, or </p>)

So I'm basically trying to take segments of html, which might be awkward segments like blah blah</i><b>blah blah and put in the <ins></ins>  <del></del> tags where appropriate.

In reply to Re: Re: Regex: How do I use lookahead with search/replace? by tunesmith
in thread Regex: How do I use lookahead with search/replace? by tunesmith

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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