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 Message function to return a log line's message:

Message("[ERROR]: Invalid operation")
// Output: "Invalid operation"

Any leading or trailing white space should be removed:

Message("[WARNING]:  Disk almost full\r\n")
// Output: "Disk almost full"

2. Get the message length in characters

Implement the LogLevel function to return a log line's message length:

Strings.LogLevel("[ERROR]: Invalid operation \n")
// Output: 17

3. Get log level from a log line

Implement the LogLevel function to return a log line's log level, which should be returned in lowercase:

Strings.LogLevel("[ERROR]: Invalid operation")
// Output: "error"

4. Reformat a log line

Implement the Reformat function that reformats the log line, putting the message first and the log level after it in parentheses:

Strings.Reformat("[INFO]: Operation completed")
// Output: "Operation completed (info)"