// 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)(?:(?<=\n\n)|\A\n*|\n{2,})
[ ]{0,3}
(?<tag_all>
(?:
(?:
<
[[:blank:]\h\v]*
(?<tag_name>[a-zA-Z0-9][\w\-]+)
(?<tag_attributes>(?&tag_attr))*
[[:blank:]\h\v]*
>
(?<html_content>.*?)
(?<tag_close>
<
[[:blank:]\h\v]*
\/
\g{tag_name}
[[:blank:]\h\v]*
>
)
)
|
(?:
<!--[[:blank:]\h\v]*(?<html_comment>.*?)[[:blank:]\h\v]*-->
)
|
(?:
<
[[:blank:]\h\v]*
(?<tag_name>[a-zA-Z0-9][\w\-]+)
(?<tag_attributes>(?&tag_attr))*
[[:blank:]\h\v]*
\/?
[[:blank:]\h\v]*
>
)
)
(?<html_after>
\z
|
[ ]*\n{1,2}
(?!
[[:blank:]\h\v]*
(?:
(?:
<
[[:blank:]\h\v]*
[a-zA-Z0-9][\w\-]+
(?:(?&tag_attr))*
[[:blank:]\h\v]*
>
)
|
(?:
<
[[:blank:]\h\v]*
\/?
[[:blank:]\h\v]*
[\w\-]+
(?:(?&tag_attr))*
[[:blank:]\h\v]*
\/?
[[:blank:]\h\v]*
>
)
)
)
)
)
(?(DEFINE)
(?<tag_attr>
(?:
[[:blank:]\h]*
[\w\-]+
[[:blank:]\h]*
=
[^\"\'[:blank]\h]+
[[:blank:]\h]*
)
|
(?:
[[:blank:]\h]*
[\w\-]+
[[:blank:]\h]*
=
[[:blank:]\h]*
(?<quote>["'])
(.*?)
\g{quote}
[[:blank:]\h]*
)
)
)"#).unwrap();
let string = "<abbr title=\"`first backtick!\">SB</abbr>
<abbr title=\"`second backtick!\">SB</abbr>";
// 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/