Ralph Shnelvar wrote in post #980334:
> How can I do this?  That is, I want to find the nearest <h1> ... </h1>
> surrounding Placeholder2.

First, I'll +1 Fred on using Nokogiri for parsing HTML.

But you can modify you regex so any markup '<' characters are excluded 
using [^<], as in:

>> p = /<(h\d)>[^<]+Placeholder2.*?<\/\1>/
>> s = "xyz<h1>x P0 y</h1><h1>x Q1 y</h1><h1>1 Placeholder2 2</h1>abc"
>> p =~ s
=> 33
>> $1
=> "h1"

Is that what you meant?

- ff

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