Build, test, and debug regular expressions
Parses product information blocks from 4RF radio equipment QR codes or scanned text, matching a BEGIN:4RF Product Info ... END:4RF Product Info wrapper and capturing named groups for firmware version, radio serial number (R plus 10 digits), part number, LTE module serial, and 14-15 digit IMEI. The ixm flags make it case-insensitive, verbose, and line-anchored for scanning multi-line input.