Regex: Find those particular html tags that contain these words (strings)

Question

I have this tags:

<span class="text_obisnuit2">* Not&#259;:</span>John Wells - <em>My Dreams</em>, Albatros Books, 1986.</p>

and this one:

<span class="text_obisnuit1">* Not&#259;:</span>Mariah Carey - <em>Lovers on the road</em>, BackStreet Books, 1965.</p>

So, I want to find those particular html tags <span class="text_obisnuit2"> that contain these words (strings): Albatros and <em> and </em> (The first line)

Answer 1

This is a straightforward one, but it requires the 'Albatros' to come after the <em> tag (demo):

(<span class="text_obisnuit2">).*<em>.*<\/em>.*Albatros.*

The following one doesn't care in which order they are (demo):

(<span class="text_obisnuit2">).*(<em>.*<\/em>.*Albatros.*|Albatros.*<em>.*<\/em>.*)

Here is another variation, where the digit(s) after text_obisnuit don't matter and the entire span tag is captured as the first group (demo):

(<span class="text_obisnuit\d+">.*<\/span>).*(<em>.*<\/em>.*Albatros.*|Albatros.*<em>.*<\/em>.*)

All regexes assume the entries are each on their own line in the file. Perhaps it makes more sense to detect for <p> and </p> as the boundaries, but for that we would need to have a larger excerpt from your input file.

Answer 2

• Ctrl+F
• Find what: <span class="text_obisnuit2">(?=.*?<em>.*?</em>)(?=.*?\bAlbatros\b).*$
• CHECK Wrap around
• CHECK Regular expression
• UNCHECK . matches newline
• Find All in Current Document

Explanation:

<span class="text_obisnuit2">   # literally
(?=                             # positive lookahead, make sure we have after:
.*?                           # 0 or more any character but newline, not greedy
<em>                          # literally open em tag
.*?                           # 0 or more any character but newline, not greedy
</em>                         # literally close em tag
)                               # end lookahead
(?=                             # positive lookahead, make sure we have after:
.*?                           # 0 or more any character but newline, not greedy
\bAlbatros\b                  # Albatros with word boundaries
)                               # end lookahead
.*                              # 0 or more any character but newline
$                               # end of line

Screenshot: