// 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)(?="_id"\s*:)(?&key_value)
(?(DEFINE)
(?<string_inner>(?<=["])(?>[^"\\]++|[\\].)++(?=["]))
(?<string>["](?&string_inner)?+["])
(?<object>[{]\s*+(?&key_values)?+\s*+[}])
(?<array>\[\s*+(?&values)?+\s*+\])
(?<key_values>(?&key_value)(?>\s*+[,]\s*+(?&key_value))*+)
(?<key_value>(?&string)\s*+[:]\s*+(?&value))
(?<number>[-]?+\d++(?>[.]\d++)?+(?>[Ee][+-]?+\d++)?+)
(?<bool>true|false)
(?<scalar>(?&bool)|(?&number)|(?&string)|null)
(?<value>(?&scalar)|(?&object)|(?&array))
(?<values>(?&value)(?>\s*+[,]\s*+(?&value))*+)
)"#).unwrap();
let string = "[
{
\"_id\": \"56af331efbeca6240c61b2ca\",
\"index\": 120000,
\"guid\": \"bedb2018-c017-429E-b520-696ea3666692\",
\"isActive\": false,
\"balance\": \"$2,202,350\",
\"object\": {
\"name\": \"alexander\",
\"lastname\": \"lang\"
}
}
]
";
// 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/