This regex matches a single one-line C-like string literal. The parsing rules are almost exactly the same as C string literals: A string literal can be surrounded by either single or double quotes, but they must match. In a double quoted string, single quotes can optionally not be preceded by a back...

Given a string, the regex would match if it is a valid IPv4 address.

just as god intended. "T const" -> "const T"

Validate accepted patterns from PEP 440

If you need to grab an entire log line based on criteria (error,warning,notice,info,debug), use this Regexp and change the parameters accordingly.

stinks

Find all instances of a double dollar delimited centred LaTeX equation, for use with e.g. KaTeX

separate nginx log into database table-style fields

extract the path from a URL returns one group (if matching) with the path info e.g. http://somedomain.com/some-page/ http://www.domain.com:8080/some-page/ https://www.google.com:8080/some-page/...

make sure mysql tables have the correct form

sdf

Regex to match standard timecode format.

Apache Web server log file format following the standard

Email validator from http://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-address-until-i.aspx/