// 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"(?<!\/\*.*?):this\s*\{[^}]+\}").unwrap();
let string = " :this {
display: grid;
}
p { color: red}
:this { this is also okay to capture }
/* but do not capture this :this { } , so how to look far behind here */
:this {
display: grid;
}
p { color: red}
:this { this is also okay to capture }
/* but do not capture this :this { } , so how to look far behind here */";
// 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/