// 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#"(?x)(?<arg> # Start arg group
(?<key>\w+) # key group: 1+ word chars
= # =
(?<quote>['"`]?) # quote group: an optional " ' or `
(?<value>(?:(?!\k<quote>)[^\\])*(?:\\[\s\S](?:(?!\k<quote>)[^\\])*)*) # value group: any 0+ chars other than quote char with escaped quote chars allowed
\k<quote> # quote group value
) # end of arg group"#).unwrap();
let string = "arg=\"value\" arg='value' arg=`value` arg=\"value 'value'\" arg='value \\'value\\' value' arg=\"value \\\"value\\\" value\" arg=`value \\`value\\ value`";
// 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/