// 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#"(?isx)(?:\<\!\-\-(?:(?!\-\-\>)\r\n?|\n|.)*?-\-\>)|(?:<(\S+)\s+(?=.*>)|(?<=[=\s])\G)(?:((?:(?!\s|=).)*)\s*?=\s*?[\"']?((?:(?<=\")(?:(?<=\\)\"|[^\"])*|(?<=')(?:(?<=\\)'|[^'])*)|(?:(?!\"|')(?:(?!\/>|>|\s).)+))[\"']?\s*)"#).unwrap();
let string = "In this case, $url will indeed contain http://example.com/whatever.jpg. But what happens when you start getting HTML like this:
<img src='http://example.com/whatever.jpg'>
or
<img src=http://example.com/whatever.jpg>
or
<img border=0 src=\"http://example.com/whatever.jpg\">
or
<img
src=\"http://example.com/whatever.jpg\">
or you start getting false positives from
<!-- // commented out
<img src=\"http://example.com/outdated.png\">
-->
<asd ASD=asd>
<!-- // commented out <img src=\"http://example.com/outdated.png\"> -->
No quotes:
<iframe src=test.html target=xyz></iframe>
Self-closing tag:
<a href=test.html target=xyz/>
Self closing tag with a space before closure:
<a href=test.html target=xyz />
Double quotes:
<a href=\"test.html\" target=\"xyz\">
Single quotes:
<a href='test.html' target='xyz'>
Escaping double quotes:
<a href=\"test.html?val=1\" title=\"\\\"No rules exist\\\" Andre Breton's quote\">
Escaping single quotes (also with spaces between equals signs):
<a href = \"test.html?val=1\" title = 'Charlie\\'s Angels'>
Tag without opening (ignore attributes):
a href = \"test.html?val=1\" title='Charlie\\'s Angels'>
Tag without closure (ignore attributes):
<a href = \"test.html?val=1\" title='Charlie\\'s Angels'
";
// 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/