Rust language Your program will take one command line argument, and can be compi

Question

Rust language

Your program will take one command line argument, and can be compiled and run with the following commands (assuming you are using either Git-Bash or working directly on Grok) rustc print_tokens.rs ./print tokens input file.txt The program argument is a filename. Your program will read the file and print all of the tokens that it finds. Specifically, your program should be able to detect the following tokens + >Plus --> Minus *>Star / Slash --> Equal LeftParen ) RightParen ; -> SemiColon -> Comma For example, with the following input file Your program should produce the following output Plus Minus Star Slash Note, your program should skip any whitespace characters that you see (see is_whitespace), and it should stop if it encounters an unknown character. For example, with the following input file (note the spaces between each symbol) Your program should output: Plus Minus

Explanation / Answer

use std::io::BufReader; use std::io::BufRead; use std::fs::File; use std::path::Path; fn main() { let f = try!(File::open("input.tsv")); let mut file = BufReader::new(&f); for line in file.lines() { let l = line.unwrap(); println!("{}", l); } }

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