docs: add spans example

1 files changed, 34 insertions, 0 deletions

diff --git a/examples/spans.rs b/examples/spans.rs
new file mode 100644
index 0000000..fc3c6a1
--- /dev/null
+++ b/examples/spans.rs
@@ -0,0 +1,34 @@
+use codespan_reporting::{
+    diagnostic::{Diagnostic, Label},
+    files::SimpleFiles,
+    term,
+    term::termcolor::{ColorChoice, StandardStream},
+};
+use html5tokenizer::{offset::PosTrackingReader, NaiveParser, Token};
+
+fn main() {
+    let html = r#"<img src=example.jpg alt="some description">"#;
+    let parser = NaiveParser::new(PosTrackingReader::new(html));
+
+    let Token::StartTag(tag) = parser.flatten().next().unwrap() else {
+        panic!()
+    };
+
+    let mut files = SimpleFiles::new();
+    let file_id = files.add("file.html", html);
+
+    let mut labels = Vec::new();
+
+    labels.push(Label::primary(file_id, tag.name_span).with_message("tag name"));
+
+    for attr in &tag.attributes {
+        labels.push(Label::primary(file_id, attr.name_span()).with_message("attr name"));
+        labels.push(Label::primary(file_id, attr.value_span().unwrap()).with_message("attr value"));
+    }
+
+    let diagnostic = Diagnostic::note().with_labels(labels);
+
+    let mut writer = StandardStream::stdout(ColorChoice::Never);
+    let config = codespan_reporting::term::Config::default();
+    term::emit(&mut writer, &config, &files, &diagnostic).unwrap();
+}