instructions.md

In this exercise you'll be processing log-lines.

Each log line is a string formatted as follows: "[<LEVEL>]: <MESSAGE>".

There are three different log levels:

• INFO
• WARNING
• ERROR

You have three tasks, each of which will take a log line and ask you to do something with it.

1. Get message from a log line

Implement the log_line::message method to return a log line's message:

log_line::message("[ERROR]: Invalid operation")
// => "Invalid operation"

2. Get log level from a log line

Implement the log_line::log_level method to return a log line's log level, which should be returned in lowercase:

log_line::log_level("[ERROR]: Invalid operation")
// => "ERROR"

3. Reformat a log line

Implement the log_line::reformat method that reformats the log line, putting the message first and the log level after it in parentheses:

log_line::reformat("[INFO]: Operation completed")
// => "Operation completed (INFO)"