Matches decimal numbers as accepted by e.g. Octave.

This expression escapes characters, which have a special meaning in regex, like .?[]/ and so on. Use it to transform a string that you want to use literally in another regex. This is the second version, bug in replace string has been fixed.

WARNING: regex is uglier than your mom.

中文，英文大小写，_ , -

Matches subdomain, domain and top level in a field that contains a urls. https://www.whatever.you.want ---> whatever.you.want

auto prefix ("/") to folder

(maybe not perfect) Name matching. Made it for my API to match Firstname and Lastname Params in order to check if that wasn't complete bullshit. Any advice would be accepted /o/

Find static variables which are not declared as final.

This regex can read dates YYYY/MM/DD, dd/mm/yy, Month dd YYYY, YYYY Month dd where Month is the literal description of the month (jan, feb, mar, ..., dec). Use the ignore case flag. It has three capture groups. The regex doesn't handle the sequence logic, that has to be managed later on the capture...

Seems to work well across multi line

Valid number are. 9883443344 09883443344 919883443344 0919883443344...