regex - error with result - too many occurence

Question

For example, I have this texte (without newline - it's important) :

<div> ffjdklfjdklfjs 2015 ddddd </div> sfsfsfsfsf    <div> hkh/ <> -%=:;.éggggggggggg 2018  dsqkdlmqs </div> fdfdfd     </div><div> ffjdklfjdklfjs 2023 ddddd </div> sfsfsfsfsf    <div> hkh/ <> -%=:;.éjhjk 2018 / dsqkdlmqs </div> fdfdfd     </div>

I'll would like a regex in order to find all sequence with only texte between <div>...2018....</div> for only 2018 date and not others.

The resultat must be 2 matchs :

<div>hkh/ <> -%=:;.éggggggggggg 2018  dsqkdlmqs </div>
<div>hkh/ <> -%=:;.éjhjk 2018 / dsqkdlmqs </div>

I made this regex (I code with Python) :

r"<div>(?=.*?2018).*?<\/div>" /g

But It doesn't work. The result is 4 matchs :

<div> ffjdklfjdklfjs 2015 ddddd </div>
<div> hkh/ <> -%=:;.éggggggggggg  2018  dsqkdlmqs </div>
<div> ffjdklfjdklfjs 2023 ddddd </div>
<div> hkh/ <> -%=:;.éjhjk 2018 / dsqkdlmqs </div>

I don't want to select <div> ffjdklfjdklfjs 2015 ddddd </div> and not <div> ffjdklfjdklfjs 2023 ddddd </div> but I don't find the solution :(

Answer 1

try this code:

import re

text = """<div> ffjdklfjdklfjs 2023 ddddd </div> sfsfsfsfsf
     <div> hkhjhjk 2018 / dsqkdlmqs </div> fdfdfd     </div>"""

result = re.search(r'(?=<div)(?=.*?2018)[\s\S]*?(?:<\/div>)', text)
print(result[0])  # <div> hkhjhjk 2018 / dsqkdlmqs </div>

=================

Edit:

    import re
    
    text1 = """<div> ffjdklfjdklfjs 2023 ddddd </div> sfsfsfsfsf
         <div> hkhjhjk 2018 / dsqkdlmqs </div> fdfdfd     </div>"""

    text2 = """<div> ffjdklfjdklfjs 2023 ddddd </div> sfsfsfsfsf
         <div> hk
hjhjk 2018 / dsqkdlmqs </div> fdfdfd     </div>"""
    
    reg = re.compile(r'<div>(?=[^<]*?2018)[\s\S]*?<\/div>')

    result1 = reg.search(text1)
    print(result1[0])  # <div> hkhjhjk 2018 / dsqkdlmqs </div>
    result2 = reg.search(text2)
    print(result2[0])  # <div> hk\nhjhjk 2018 / dsqkdlmqs </div>