Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
i dunno, but will your machine suffer great slowdown if you use a very complex regex? like for example the famous email validation module proposed just recently? which can be found here RFC822
update: sorry i had to ask this question in a hurry anyway i posted the link to the email regex i was talking about
It highly depends on the individual regex: features like look-behind or look-ahead can get very expensive, while simple regular expressions are fine for most situations.
Tutorials on http://www.regular-expressions.info/ offer performance advice, so that can be a good start.