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Take a look at, for example, these stackoverflow answers about a regex to validate and e-mail address: https://stackoverflow.com/a/8829363 https://stackoverflow
by michaelt 3y ago
Take a look at, for example, these stackoverflow answers about a regex to validate and e-mail address: https://stackoverflow.com/a/8829363 https://stackoverflow.com/a/8829363
These people are I think not intending to say a newline character is permitted at the end of an e-mail address.
(Of course people using 'grep' would have different expectations for obvious reasons)
- Izkata 3y agoEven disregarding whether or not end-of-string is also an end-of-line or not (see all the other comments below), $ doesn't match the newline, similar to zero-width matches like \b, so the newline wouldn't be included in the matched text either way. I think this series of comments might be clearest: https://news.ycombinator.com/item?id=39764385 https://news.ycombinator.com/item?id=39764385
- LK5ZJwMwgBbHuVI 3y agoProblem is, plenty of software doesn't actually look at the match but rather just validates that there was a match (and then continues to use the input to that match).