// 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"(?mx)(?(DEFINE) # regex definitions
(?P<string>[a-zA-Z0-9]+)
(?P<value>\s*(?:(?&string)|(?&array)|(?&object))\s*)
(?P<array>\s*\[\s*(?&value)\s*(?:\s*,\s*(?&value)\s*)*\])
(?P<pair>(?&string)\s*:\s*(?&value))
(?P<object>\{\s*(?&pair)\s*(?:\s*,\s*(?&pair)\s*)*\})
)
(?&object)").unwrap();
let string = " {
foo : bar,
baz : [aa, bb, ccc],
123 : 123,
obj : { foo : bar}
}
";
// 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/