How to Replace multiple Spaces with a Single Space in String in Rust - Step by Step Examples

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How to Replace multiple Spaces with a Single Space in String in Rust ?

Answer

To replace multiple spaces with a single space in Rust, you can use the `regex` crate.

✐ Examples

1 Replace multiple spaces with a single space in a string

In this example,

We add the regex crate to the dependencies in the Cargo.toml file.
We use the regex::Regex struct to create a regular expression pattern \s+ to match multiple spaces.
We use the replace_all method to replace multiple spaces with a single space in the string str.
Finally, we print the modified string str.

Rust Program

[dependencies]
regex = "1.5"

use regex::Regex;

fn main() {
    let str = "This   is    a  test   string";
    let re = Regex::new(r"\s+").unwrap();
    let modified_str = re.replace_all(str, " ");
    println!("{}", modified_str);
}

Output

This is a test string

Summary

In this tutorial, we learned How to Replace multiple Spaces with a Single Space in String in Rust language with well detailed examples.