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by yread 3483 days ago
Regex is actually a pretty good example. I think something like 99.9% of people get bitten by it. I'm using them for like 10 years and I rarely get the more complex ones working on the first try - not just because of the incosistencies between Perl, Js, .NET, sed, shell (extra escapes) and Python, but also stuff like look ahead/behinds or just plain logical errors which are pretty hard to spot