Add example for broken link callbacks
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extern crate pulldown_cmark;
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use pulldown_cmark::{html, BrokenLink, Options, Parser};
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fn main() {
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let input: &str = "Hello world, check out [my website][].";
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println!("Parsing the following markdown string:\n{}", input);
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// Setup callback that sets the URL and title when it encounters
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// a reference to our home page.
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let callback = &mut |broken_link: BrokenLink| {
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if broken_link.reference.as_ref() == "my website" {
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println!(
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"Replacing the markdown `{}` of type {:?} with a working link",
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&input[broken_link.span], broken_link.link_type,
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);
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Some(("http;//example.com".into(), "my example website".into()))
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} else {
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None
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}
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};
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// Create a parser with our callback function for broken links.
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let parser = Parser::new_with_broken_link_callback(input, Options::empty(), Some(callback));
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// Write to String buffer.
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let mut html_output: String = String::with_capacity(input.len() * 3 / 2);
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html::push_html(&mut html_output, parser);
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// Check that the output is what we expected.
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let expected_html: &str =
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"<p>Hello world, check out <a href=\"http;//example.com\" title=\"my example website\">my website</a>.</p>\n";
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assert_eq!(expected_html, &html_output);
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// Write result to stdout.
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println!("\nHTML output:\n{}", &html_output);
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}
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