[a-zA-Z0-9\-_.]{1,}\@[a-zA-Z0-9\-_.]{1,} what does this mean and what is it called
[a-zA-Z0-9\-_.]{1,}\@[a-zA-Z0-9\-_.]{1,}
I was given this to use to find all the emails in a very large document.
I want to try and understand what the symbols mean and what the process is called
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