Trace span events.

src/parser/text.rs

@@ -25,6 +25,7 @@ use nom::multi::many1;
 use nom::multi::many_till;
 use nom::sequence::tuple;
 use nom::IResult;
+use tracing::instrument;
 
 use super::nom_context::ContextTree;
 use super::nom_context::OrgModeContextTree;
@@ -137,6 +138,7 @@ pub fn paragraph_end(input: &str) -> Res<&str, &str> {
     recognize(tuple((map(line_break, TextElement::LineBreak), blank_line)))(input)
 }
 
+#[instrument]
 pub fn document(input: &str) -> Res<&str, Vec<(Vec<TextElement>, &str)>> {
     let initial_context = ContextTree::new();
     let paragraph_context = initial_context.with_additional_fail_matcher(&paragraph_end);