Line Number Filter

Project: Line Number Filter

Write a program that accepts input from the console or from a re-directed file that prints each line from the input stream. Each line should be prefixed with a line number (padded to 5 spaces, right aligned), followed by a colon, followed by the line from the input stream.

Output

$ rustc LineNumberFilter.rs error: unknown format trait `d` --> LineNumberFilter.rs:14:31 | 14 | println!("{}", format!("{0:5d}: {1:s}", lineNumber, line)); | ^ | = note: the only appropriate formatting traits are: - ``, which uses the `Display` trait - `?`, which uses the `Debug` trait - `e`, which uses the `LowerExp` trait - `E`, which uses the `UpperExp` trait - `o`, which uses the `Octal` trait - `p`, which uses the `Pointer` trait - `b`, which uses the `Binary` trait - `x`, which uses the `LowerHex` trait - `X`, which uses the `UpperHex` trait error: unknown format trait `s` --> LineNumberFilter.rs:14:38 | 14 | println!("{}", format!("{0:5d}: {1:s}", lineNumber, line)); | ^ | = note: the only appropriate formatting traits are: - ``, which uses the `Display` trait - `?`, which uses the `Debug` trait - `e`, which uses the `LowerExp` trait - `E`, which uses the `UpperExp` trait - `o`, which uses the `Octal` trait - `p`, which uses the `Pointer` trait - `b`, which uses the `Binary` trait - `x`, which uses the `LowerHex` trait - `X`, which uses the `UpperHex` trait error[E0425]: cannot find value `Utils` in this scope --> LineNumberFilter.rs:13:12 | 13 | line = &(Utils.rtrim(line)); | ^^^^^ not found in this scope error[E0425]: cannot find function `getline` in this scope --> LineNumberFilter.rs:12:8 | 12 | while getline(line) { | ^^^^^^^ not found in this scope error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0425`.

Solution