just p4 file command output match

Length must be 7 digits Every character must be an integer

get the initial of a strings

(@url)([\s]=[\s])(?:')(.)(?:')(?:;)

Match 1 is the IPID

I use this in a JSON template together with JObject data to create a JSON string

find title and page in text

header of output from > 7z i

custom email

Any WhiteSpace Character

sdfdsf

see owasp recommendation for things to remove from a csv export. this expression matches on following characters [. , ; + = - @ ' "] also carriage return make sure to clear strings for whitespace and choose your preferred methods for additional security from the examples in the owasp documentation...

Group 1 will have meeting id, group 2 will have password

Matches alphanumeric, @, . , -

There is not word boundary between the >< and as there seem to be at least 1 or more uppercase characters, then quantifier can be + to match 1 or more times. If you don't want to split at the start of the string, creating an empty entry in the result list, you can assert using a negative lookbehind ...

Camel Case - digits allowed - Upto 3 upper case letters To be proper camel case a word with digits allowed and upto 3 upper case letters, a word: MUST start with a lower case alphabet (a through z) MUST have no spaces, punctuation or special characters CAN have at most 3 uppercase alphabets in a ro...

To be proper camel case a word with no digits allowed and upto 3 upper case letters, a word: Must start with a lower case alphabet (a through z) Must have no digits (0 - 9) MUST have no spaces, punctuation or special characters Can have at most 3 uppercase alphabets in a row Can end in an uppercase ...

A neat regular expression to extract web urls and emails from a paragraph or a text stream.

Flexible postcode validation with or without space as outlined here, but added optional space for flexibility https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/488478/Bulk_Data_Transfer_-_additional_validation_valid_from_12_November_2015.pdf

Regex for validating ISO 8601:2004E durations, complete with named capture groups.