G'day PilotinControl,

I see:

• Partial code that no one can test.
• No input data.
• No output data.
• Useless error reports: "some weird happenings" and "it did nothing".

I think you've been here long enough (17 years and 210 posts) to know better.

My best guesses:

• Use Text::CSV to extract data. It'll run faster if you also have Text::CSV_XS installed.
• Remove duplicates from your regex alternation.
• Apply boundary assertions to your regex.
• Remove the 'i' modifier from your regex.

Kindly read "How do I post a question effectively?" before posting again. Follow what it says if you do post again. You'll probably get better answers if you include an SSCCE.

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