The user enters the lines of text and a regular expression, and the calculator outputs two lists - the filtered lines that match the expression and the filtered lines that don't match. The user could then examine the results to gain insights into the data or take further action as needed.
The possible use cases:
- Filter out log entries by their log level (error, warning, info, etc.).
- Filter out rows from a data table based on certain criteria (for example, rows with certain values in a particular column).
- Filter out text entries that contain email addresses or URLs.
- Filter out specific words or phrases in a text file.