}
}
+type SpannedEvent<'a> = (Event<'a>, Range<usize>);
+
/// Make headings links with anchor IDs and build up TOC.
struct HeadingLinks<'a, 'b, 'ids, I> {
inner: I,
toc: Option<&'b mut TocBuilder>,
- buf: VecDeque<Event<'a>>,
+ buf: VecDeque<SpannedEvent<'a>>,
id_map: &'ids mut IdMap,
}
}
}
-impl<'a, 'b, 'ids, I: Iterator<Item = Event<'a>>> Iterator for HeadingLinks<'a, 'b, 'ids, I> {
- type Item = Event<'a>;
+impl<'a, 'b, 'ids, I: Iterator<Item = SpannedEvent<'a>>> Iterator
+ for HeadingLinks<'a, 'b, 'ids, I>
+{
+ type Item = SpannedEvent<'a>;
fn next(&mut self) -> Option<Self::Item> {
if let Some(e) = self.buf.pop_front() {
}
let event = self.inner.next();
- if let Some(Event::Start(Tag::Heading(level))) = event {
+ if let Some((Event::Start(Tag::Heading(level)), _)) = event {
let mut id = String::new();
for event in &mut self.inner {
- match &event {
+ match &event.0 {
Event::End(Tag::Heading(..)) => break,
+ Event::Start(Tag::Link(_, _, _)) | Event::End(Tag::Link(..)) => {}
Event::Text(text) | Event::Code(text) => {
id.extend(text.chars().filter_map(slugify));
+ self.buf.push_back(event);
}
- _ => {}
- }
- match event {
- Event::Start(Tag::Link(_, _, _)) | Event::End(Tag::Link(..)) => {}
- event => self.buf.push_back(event),
+ _ => self.buf.push_back(event),
}
}
let id = self.id_map.derive(id);
if let Some(ref mut builder) = self.toc {
let mut html_header = String::new();
- html::push_html(&mut html_header, self.buf.iter().cloned());
+ html::push_html(&mut html_header, self.buf.iter().map(|(ev, _)| ev.clone()));
let sec = builder.push(level as u32, html_header, id.clone());
- self.buf.push_front(Event::Html(format!("{} ", sec).into()));
+ self.buf.push_front((Event::Html(format!("{} ", sec).into()), 0..0));
}
- self.buf.push_back(Event::Html(format!("</a></h{}>", level).into()));
+ self.buf.push_back((Event::Html(format!("</a></h{}>", level).into()), 0..0));
let start_tags = format!(
"<h{level} id=\"{id}\" class=\"section-header\">\
id = id,
level = level
);
- return Some(Event::Html(start_tags.into()));
+ return Some((Event::Html(start_tags.into()), 0..0));
}
event
}
}
}
-impl<'a, I: Iterator<Item = Event<'a>>> Iterator for Footnotes<'a, I> {
- type Item = Event<'a>;
+impl<'a, I: Iterator<Item = SpannedEvent<'a>>> Iterator for Footnotes<'a, I> {
+ type Item = SpannedEvent<'a>;
fn next(&mut self) -> Option<Self::Item> {
loop {
match self.inner.next() {
- Some(Event::FootnoteReference(ref reference)) => {
+ Some((Event::FootnoteReference(ref reference), range)) => {
let entry = self.get_entry(&reference);
let reference = format!(
"<sup id=\"fnref{0}\"><a href=\"#fn{0}\">{0}</a></sup>",
(*entry).1
);
- return Some(Event::Html(reference.into()));
+ return Some((Event::Html(reference.into()), range));
}
- Some(Event::Start(Tag::FootnoteDefinition(def))) => {
+ Some((Event::Start(Tag::FootnoteDefinition(def)), _)) => {
let mut content = Vec::new();
- for event in &mut self.inner {
+ for (event, _) in &mut self.inner {
if let Event::End(Tag::FootnoteDefinition(..)) = event {
break;
}
ret.push_str("</li>");
}
ret.push_str("</ol></div>");
- return Some(Event::Html(ret.into()));
+ return Some((Event::Html(ret.into()), 0..0));
} else {
return None;
}
};
let p = Parser::new_with_broken_link_callback(md, opts(), Some(&mut replacer));
+ let p = p.into_offset_iter();
let mut s = String::with_capacity(md.len() * 3 / 2);
let p = HeadingLinks::new(p, None, &mut ids);
- let p = LinkReplacer::new(p, links);
- let p = CodeBlocks::new(p, codes, edition, playground);
let p = Footnotes::new(p);
+ let p = LinkReplacer::new(p.map(|(ev, _)| ev), links);
+ let p = CodeBlocks::new(p, codes, edition, playground);
html::push_html(&mut s, p);
s
crate fn into_string(self) -> String {
let MarkdownWithToc(md, mut ids, codes, edition, playground) = self;
- let p = Parser::new_ext(md, opts());
+ let p = Parser::new_ext(md, opts()).into_offset_iter();
let mut s = String::with_capacity(md.len() * 3 / 2);
{
let p = HeadingLinks::new(p, Some(&mut toc), &mut ids);
- let p = CodeBlocks::new(p, codes, edition, playground);
let p = Footnotes::new(p);
+ let p = CodeBlocks::new(p.map(|(ev, _)| ev), codes, edition, playground);
html::push_html(&mut s, p);
}
if md.is_empty() {
return String::new();
}
- let p = Parser::new_ext(md, opts());
+ let p = Parser::new_ext(md, opts()).into_offset_iter();
// Treat inline HTML as plain text.
- let p = p.map(|event| match event {
- Event::Html(text) => Event::Text(text),
+ let p = p.map(|event| match event.0 {
+ Event::Html(text) => (Event::Text(text), event.1),
_ => event,
});
let mut s = String::with_capacity(md.len() * 3 / 2);
let p = HeadingLinks::new(p, None, &mut ids);
- let p = CodeBlocks::new(p, codes, edition, playground);
let p = Footnotes::new(p);
+ let p = CodeBlocks::new(p.map(|(ev, _)| ev), codes, edition, playground);
html::push_html(&mut s, p);
s
shortcut_links.push((link.reference.to_owned(), locate(link.reference)));
None
};
- let p = Parser::new_with_broken_link_callback(md, opts(), Some(&mut push));
+ let p =
+ Parser::new_with_broken_link_callback(md, opts(), Some(&mut push)).into_offset_iter();
// There's no need to thread an IdMap through to here because
// the IDs generated aren't going to be emitted anywhere.
let iter = Footnotes::new(HeadingLinks::new(p, None, &mut ids));
for ev in iter {
- if let Event::Start(Tag::Link(_, dest, _)) = ev {
+ if let Event::Start(Tag::Link(_, dest, _)) = ev.0 {
debug!("found link: {}", dest);
links.push(match dest {
CowStr::Borrowed(s) => (s.to_owned(), locate(s)),