I'm trying to match a hostname input with the following properties: a-z A-Z 0-9 : - are allowed ; doesnot start or end with - ; "." can be used to separate different labels of the hostname. But gives no match for this regex: ^(a-zA-Z0-9|(?<!-)\.(?![-.]))[a-zA-Z0-9]+)?)$...

Hi there, I try to learn and improve my regex knowledge... I want to fetch all lines below the "="-line and between the "-"-lines and access them via $1 - $n. Is this possible? Or should I fetch the whole string below the "="-line and the last "-"-line, then seperate the lines after that in another...

A real fai2ban expression for w00tw00t with alias substitution

improved "Ahmed Z" regexp. PHP date format (and input[type=text] format date too): YYYY-MM-DD. Year between [1900-2099]. No leap year check. Month 02 is limited to 29 days.

Regex to verify PAN in India

The secret of the Twitterverse.

test

Semantic Versioning regex pattern according to Tom Preston-Werner http://semver.org/ https://github.com/mojombo/semver/blob/master/semver.md ...

Semantic Versioning regex pattern according to Tom Preston-Werner http://semver.org/ https://github.com/mojombo/semver/blob/master/semver.md First version of this regex follows semver 2.0.0....

Matches european dates (DD.MM.YYYY[ HH:MM:SS]) and MS-SQL Timestamp ({ts 'YYYY-MM-DD HH:MM:SS'})

Parse decimal numbers with optional thousands and/or decimal separator. #i18n #l11n #international

webongo test