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regex is a template tag that extends JavaScript regular expressions with features that make them more powerful and dramatically more readable. It returns native RegExp instances that equal or exceed ...

The CloudFormation documentation indicates that logical ID's must be only alphanumeric, yet the regex in the logical ID validation file is /^[A-Za-z][A-Za-z0-9]{1,254}$/. This causes logical IDs such ...

Abstract: This paper focuses on regular expression matching over compressed traffic. The need for such matching arises from two independent trends. First, the volume and share of compressed HTTP ...

I'm confused by Perl's regex abilities. There seems to be a lot of duplicate flags: ^ and \A both match the beginning of a string. $ and \Z both match the end. It seems redundant and confusing. I'm ...

My books are boxed up ready for a move, and my google-fu is failing me.<BR><BR>I'm converting strings to hex, and want to detect if a non-hex character is in the string. What's the regexp that will ...