Log Levels
10 Points
strings
Instructions
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:
INFOWARNINGERROR
You have three tasks, each of which will take a log line and ask you to do something with it.
You are free to use either legacy functions from base R or the stringr library, and both can give short, viable solutions.
1. Get message from a log line
Implement the message function to return a log line's message:
message("[ERROR]: Invalid operation")
#> "Invalid operation"Any leading or trailing white space should be removed:
message("[WARNING]: Disk almost full\r\n")
#> "Disk almost full"2. Get log level from a log line
Implement the log_level function to return a log line's log level, which should be returned in lowercase:
log_level("[ERROR]: Invalid operation")
#> "error"3. 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:
reformat("[INFO]: Operation completed")
#> "Operation completed (info)"Log Levels
10 Points
strings
Instructions
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:
INFOWARNINGERROR
You have three tasks, each of which will take a log line and ask you to do something with it.
You are free to use either legacy functions from base R or the stringr library, and both can give short, viable solutions.
1. Get message from a log line
Implement the message function to return a log line's message:
message("[ERROR]: Invalid operation")
#> "Invalid operation"Any leading or trailing white space should be removed:
message("[WARNING]: Disk almost full\r\n")
#> "Disk almost full"2. Get log level from a log line
Implement the log_level function to return a log line's log level, which should be returned in lowercase:
log_level("[ERROR]: Invalid operation")
#> "error"3. 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:
reformat("[INFO]: Operation completed")
#> "Operation completed (info)"