// 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"(?m)(?:^|\G)( {4}|\t)").unwrap();
let string = "<?php
class SomeClass
{
var $property = 1;
function double(int $x)
{
$result = $x + $x;
// line already indented with tabs
// line started with tab, but followed with spaces
// line has 4 spaces in the middle
// line endings with 4 spaces
return $result;
}
}";
let substitution = "\\t";
// result will be a String with the substituted value
let result = regex.replace_all(string, substitution);
println!("{}", result);
}
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/