// include the latest version of the regex crate in your Cargo.toml
extern crate regex;
use regex::Regex;
fn main() {
let regex = Regex::new(r"(?ms)(?<=^).{1,50}(?:\n|$)|.{1,50}(?:\n|$)|.{1,50}").unwrap();
let string = "I wish to split
a long text into chunks
of nn chars max.
To take as much chars as I can in each
chunk but importantly I want to finish each
chunk in a
linebreak
inorder to
avoid word split in the middle.
If there was no single linebreak in all of the nn chars, ... split a word to 2 chunks.
";
// result will be an iterator over tuples containing the start and end indices for each match in the string
let result = regex.captures_iter(string);
for mat in result {
println!("{:?}", mat);
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Rust, please visit: https://docs.rs/regex/latest/regex/