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Editorial Team
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Asked: 2026-05-13T14:53:54+00:00

I need to parse an HTML file and i’ve got something like this: <TAG1>

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I need to parse an HTML file and i’ve got something like this:

<TAG1>
    <TAG1>
        TEXT_TO_FIND
        KEY
        <TAG1>
        </TAG1>
        <TAG1>
        </TAG1>
    </TAG1>
</TAG1>

Taking into account that there are multiple nesting levels. How can I get the text TEXT_TO_FIND?

In plain english, what I need to do is to get the text between "the last that has the text KEY after it" and "the text KEY", which only appearse once on the document.

Note1: I found this question but it didn’t seem to work; I kept getting an empty result. This would be the expression:

/<TAG1>(?!.*<TAG1>)(.*)KEY/ism

Note2: If I remove the KEY from the expression of the previous note, I get the text from the last to the end of file.

Thanks everyone in advance!

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1 Answer

  1. Editorial Team

    If you just don’t want to use a HTML parser, this is a regexp that works if TEXT_TO_FIND does not contain “<” or “>”:

    /\s*([^<>]*?)\s*?KEY/ism
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