This regex escapes the 4 main signs of operations, -*/+. Good for calculating

link making

No perfect, missing GIR postcodes, but should match most of the postcodes for extraction. It's not a postcode validator, just an extractor, validation should be done after extraction.

Strips out the postcode area (first one or two letters e.g. [WA]1) from a UK postcode.

extracting domain name from url

Reg exp for directory/files of pdf etc

For files with a .pub ending

Checks for valid UK/British postcodes. A modified version of MaffooBristol's pattern that prevents a non-whitespace character being entered in between the two sections of the postcode. Works in PHP/JS ...

This is a Regex to the Whatsapp chat data. This parses the G1 - Date, G2 - Time, G3 - User, G4 - Qualifier & G5 - Actual chat data. The Qualifier (G4) identifies the group Creation information, : that separates the User and Ping chat data and New user added chats.

Match numerical value of a JSON key. Numbers only 3-9

Convert .5 in all its forms to 1/2

A regex to parse WhatsApp conversation files

Recognizes time-of-day timestamps Time range is from 0:00:00 through 23:59:59 Seconds are optional Named match components for hours, minutes, seconds