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rust replace characters

Katonkel on Feb 21, 2021

let s:String = "Hello, world!".chars()
    .map(|x| match x { 
        '!' => '?', 
        'A'..='Z' => 'X', 
        'a'..='z' => 'x',
        _ => x
    }).collect();
println!("{}", s);// Xxxxx, xxxxx?
// Avoids using Regex

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"rust replace characters" Code Answer's