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html: render lists, list items

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This commit is contained in:
Noah Hellman 2023-01-22 10:41:15 +01:00
parent 2f616c41b7
commit 1f71df82ef
1 changed files with 63 additions and 25 deletions
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88
src/html.rs
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@ -1,6 +1,8 @@
use crate::Atom; use crate::Atom;
use crate::Container; use crate::Container;
use crate::Event; use crate::Event;
use crate::List;
use crate::OrderedListNumbering::*;
/// Generate HTML from parsed events and push it to a unicode-accepting buffer or stream. /// Generate HTML from parsed events and push it to a unicode-accepting buffer or stream.
pub fn push<'s, I: Iterator<Item = Event<'s>>, W: std::fmt::Write>(out: W, events: I) { pub fn push<'s, I: Iterator<Item = Event<'s>>, W: std::fmt::Write>(out: W, events: I) {
@ -99,9 +101,29 @@ impl<'s, I: Iterator<Item = Event<'s>>, W: std::fmt::Write> Writer<'s, I, W> {
} }
match &c { match &c {
Container::Blockquote => self.out.write_str("<blockquote")?, Container::Blockquote => self.out.write_str("<blockquote")?,
Container::List(..) => todo!(), Container::List(List::Unordered | List::Task) => {
Container::ListItem => self.out.write_str("<li")?, self.out.write_str("<ul")?;
Container::TaskListItem { .. } => todo!(), }
Container::List(List::Ordered {
numbering, start, ..
}) => {
self.out.write_str("<ol")?;
if *start > 1 {
write!(self.out, r#" start="{}""#, start)?;
}
if let Some(ty) = match numbering {
Decimal => None,
AlphaLower => Some('a'),
AlphaUpper => Some('A'),
RomanLower => Some('i'),
RomanUpper => Some('I'),
} {
write!(self.out, r#" type="{}""#, ty)?;
}
}
Container::ListItem | Container::TaskListItem { .. } => {
self.out.write_str("<li")?;
}
Container::DescriptionDetails => self.out.write_str("<dd")?, Container::DescriptionDetails => self.out.write_str("<dd")?,
Container::Footnote { number, .. } => { Container::Footnote { number, .. } => {
assert!(self.footnote_number.is_none()); assert!(self.footnote_number.is_none());
@ -153,42 +175,53 @@ impl<'s, I: Iterator<Item = Event<'s>>, W: std::fmt::Write> Writer<'s, I, W> {
Container::Mark => self.out.write_str("<mark")?, Container::Mark => self.out.write_str("<mark")?,
Container::SingleQuoted => self.out.write_str("&lsquo;")?, Container::SingleQuoted => self.out.write_str("&lsquo;")?,
Container::DoubleQuoted => self.out.write_str("&ldquo;")?, Container::DoubleQuoted => self.out.write_str("&ldquo;")?,
_ => panic!(),
} }
if matches!(c, Container::SingleQuoted | Container::DoubleQuoted) { if matches!(c, Container::SingleQuoted | Container::DoubleQuoted) {
continue; // TODO add span to allow attributes? continue; // TODO add span to allow attributes?
} }
for (a, v) in attrs.iter().filter(|(a, _)| *a != "class") {
write!(self.out, r#" {}="{}""#, a, v)?;
}
if attrs.iter().any(|(a, _)| a == "class") if attrs.iter().any(|(a, _)| a == "class")
|| matches!( || matches!(
c, c,
Container::Div { class: Some(_) } | Container::Math { .. } Container::Div { class: Some(_) }
| Container::Math { .. }
| Container::List(List::Task)
| Container::TaskListItem { .. }
) )
{ {
self.out.write_str(r#" class=""#)?; self.out.write_str(r#" class=""#)?;
let mut classes = attrs let mut first_written = false;
if let Some(cls) = match c {
Container::List(List::Task) => Some("task-list"),
Container::TaskListItem { checked: false } => Some("unchecked"),
Container::TaskListItem { checked: true } => Some("checked"),
Container::Math { display: false } => Some("math inline"),
Container::Math { display: true } => Some("math display"),
_ => None,
} {
first_written = true;
self.out.write_str(cls)?;
}
for cls in attrs
.iter() .iter()
.filter(|(a, _)| a == &"class") .filter(|(a, _)| a == &"class")
.map(|(_, cls)| cls); .map(|(_, cls)| cls)
let has_attr = if let Container::Math { display } = c { {
self.out.write_str(if display { if first_written {
"math display"
} else {
"math inline"
})?;
true
} else if let Some(cls) = classes.next() {
self.out.write_str(cls)?;
for cls in classes {
self.out.write_char(' ')?; self.out.write_char(' ')?;
self.out.write_str(cls)?;
} }
true first_written = true;
} else { self.out.write_str(cls)?;
false }
}; // div class goes after classes from attrs
if let Container::Div { class: Some(cls) } = c { if let Container::Div { class: Some(cls) } = c {
if has_attr { if first_written {
self.out.write_char(' ')?; self.out.write_char(' ')?;
} }
self.out.write_str(cls)?; self.out.write_str(cls)?;
@ -223,9 +256,13 @@ impl<'s, I: Iterator<Item = Event<'s>>, W: std::fmt::Write> Writer<'s, I, W> {
} }
match c { match c {
Container::Blockquote => self.out.write_str("</blockquote>")?, Container::Blockquote => self.out.write_str("</blockquote>")?,
Container::List(..) => todo!(), Container::List(List::Unordered | List::Task) => {
Container::ListItem => self.out.write_str("</li>")?, self.out.write_str("</ul>")?;
Container::TaskListItem { .. } => todo!(), }
Container::List(List::Ordered { .. }) => self.out.write_str("</ol>")?,
Container::ListItem | Container::TaskListItem { .. } => {
self.out.write_str("</li>")?;
}
Container::DescriptionDetails => self.out.write_str("</dd>")?, Container::DescriptionDetails => self.out.write_str("</dd>")?,
Container::Footnote { number, .. } => { Container::Footnote { number, .. } => {
if !self.footnote_backlink_written { if !self.footnote_backlink_written {
@ -291,6 +328,7 @@ impl<'s, I: Iterator<Item = Event<'s>>, W: std::fmt::Write> Writer<'s, I, W> {
Container::Mark => self.out.write_str("</mark>")?, Container::Mark => self.out.write_str("</mark>")?,
Container::SingleQuoted => self.out.write_str("&rsquo;")?, Container::SingleQuoted => self.out.write_str("&rsquo;")?,
Container::DoubleQuoted => self.out.write_str("&rdquo;")?, Container::DoubleQuoted => self.out.write_str("&rdquo;")?,
_ => panic!(),
} }
} }
Event::Str(s) => { Event::Str(s) => {