// 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"(?xsm) (?=
({%.if
(?:
(?>
(?:
(?! {%.if | endif.%}) .
)+
)*
| (?1)
)*
endif.%})
)
(?1)").unwrap();
let string = "{% if something %}
----------------
{% if something %}
DEEPER
{% endif %}
{% irgendwas %}
{% if something %}
DEEPER
{% if something %}
DEEPEST
{% endif %}
DEEPER
{% endif %}
---- endif ----
{% endif %}
kjafgnkajngkjalkjg
{% if something %}
++++++++++++++++
{% if something %}
DEEPER
{% endif %}
{% irgendwas %}
{% if something %}
DEEPER
{% if something %}
DEEPEST
{% endif %}
DEEPER
{% endif %}
++++ endif ++++
{% endif %}
";
// 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/