I tried to write a bit of code which reads a name from stdin and prints it. The problem is the line breaks immediately after printing the variable and the characters following the variable are printed in the next line:
use std::io;
fn main() {
println!("Enter your name:");
let mut name = String::new();
io::stdin().read_line(&mut name).expect("Failed To read Input");
println!("Hello '{}'!", name);
}
The '!' is printed in the next line, which is not the expected location.
No, read() system call doesn't add any new line at end of file.
Remove \n From String Using regex Method in Python To remove \n from the string, we can use the re. sub() method.
Create a string containing line breaksInserting a newline code \n , \r\n into a string will result in a line break at that location. On Unix, including Mac, \n (LF) is often used, and on Windows, \r\n (CR + LF) is often used as a newline code.
Use .trim()
to remove whitespace on a string. This example should work.
use std::io;
fn main() {
println!("Enter your name:");
let mut name = String::new();
io::stdin().read_line(&mut name).expect("Failed To read Input");
println!("Hello '{}'!", name.trim());
}
There also trim_start()
and .trim_end()
if you need to remove whitespace changes from only one side of the string.
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