Test, validate and match regular expressions
Matches lines in a tab-separated format that start with '#TR|' followed by a number and non-tab characters, then a tab, 'Identifier|', a number and non-tab characters, another tab, and finally a function code like 'FC123/45'. Captures the function code part (FC+digits) and the trailing number into separate groups. Useful for parsing structured logs, extracting function identifiers, or processing data files with a consistent tab-delimited schema.