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Shorten line during rendering instead of in markdown

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This commit is contained in:
Mark Rousskov 2019-08-12 16:49:22 -04:00
parent b3f01753b0
commit b0fab966fa
2 changed files with 34 additions and 42 deletions
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20
src/librustdoc/html/markdown.rs
View File

@ -785,10 +785,6 @@ impl MarkdownSummaryLine<'_> {
}
pub fn plain_summary_line(md: &str) -> String {
plain_summary_line_full(md, false)
}
pub fn plain_summary_line_full(md: &str, limit_length: bool) -> String {
struct ParserWrapper<'a> {
inner: Parser<'a>,
is_in: isize,
@ -834,21 +830,7 @@ pub fn plain_summary_line_full(md: &str, limit_length: bool) -> String {
s.push_str(&t);
}
}
if limit_length && s.chars().count() > 60 {
let mut len = 0;
let mut ret = s.split_whitespace()
.take_while(|p| {
// + 1 for the added character after the word.
len += p.chars().count() + 1;
len < 60
})
.collect::<Vec<_>>()
.join(" ");
ret.push('…');
ret
} else {
s
}
s
}
pub fn markdown_links(md: &str) -> Vec<(String, Option<Range<usize>>)> {

56
src/librustdoc/html/render.rs
View File

@ -732,7 +732,7 @@ fn build_index(krate: &clean::Crate, cache: &mut Cache) -> String {
ty: item.type_(),
name: item.name.clone().unwrap(),
path: fqp[..fqp.len() - 1].join("::"),
desc: plain_summary_line_short(item.doc_value()),
desc: shorten(plain_summary_line(item.doc_value())),
parent: Some(did),
parent_idx: None,
search_type: get_index_search_type(&item),
@ -770,7 +770,7 @@ fn build_index(krate: &clean::Crate, cache: &mut Cache) -> String {
}
let crate_doc = krate.module.as_ref().map(|module| {
plain_summary_line_short(module.doc_value())
shorten(plain_summary_line(module.doc_value()))
}).unwrap_or(String::new());
let mut crate_data = BTreeMap::new();
@ -1482,7 +1482,7 @@ impl DocFolder for Cache {
ty: item.type_(),
name: s.to_string(),
path: path.join("::"),
desc: plain_summary_line_short(item.doc_value()),
desc: shorten(plain_summary_line(item.doc_value())),
parent,
parent_idx: None,
search_type: get_index_search_type(&item),
@ -1664,7 +1664,7 @@ impl Cache {
ty: item.type_(),
name: item_name.to_string(),
path: path.clone(),
desc: plain_summary_line_short(item.doc_value()),
desc: shorten(plain_summary_line(item.doc_value())),
parent: None,
parent_idx: None,
search_type: get_index_search_type(&item),
@ -2360,29 +2360,39 @@ fn full_path(cx: &Context, item: &clean::Item) -> String {
s
}
fn shorter(s: Option<&str>) -> String {
match s {
Some(s) => s.lines()
.skip_while(|s| s.chars().all(|c| c.is_whitespace()))
.take_while(|line|{
(*line).chars().any(|chr|{
!chr.is_whitespace()
})
}).collect::<Vec<_>>().join("\n"),
None => String::new()
}
}
#[inline]
fn plain_summary_line(s: Option<&str>) -> String {
let line = shorter(s).replace("\n", " ");
markdown::plain_summary_line_full(&line[..], false)
let s = s.unwrap_or("");
// This essentially gets the first paragraph of text in one line.
let mut line = s.lines()
.skip_while(|line| line.chars().all(|c| c.is_whitespace()))
.take_while(|line| line.chars().any(|c| !c.is_whitespace()))
.fold(String::new(), |mut acc, line| {
acc.push_str(line);
acc.push(' ');
acc
});
// remove final whitespace
line.pop();
markdown::plain_summary_line(&line[..])
}
#[inline]
fn plain_summary_line_short(s: Option<&str>) -> String {
let line = shorter(s).replace("\n", " ");
markdown::plain_summary_line_full(&line[..], true)
fn shorten(s: String) -> String {
if s.chars().count() > 60 {
let mut len = 0;
let mut ret = s.split_whitespace()
.take_while(|p| {
// + 1 for the added character after the word.
len += p.chars().count() + 1;
len < 60
})
.collect::<Vec<_>>()
.join(" ");
ret.push('…');
ret
} else {
s
}
}
fn document(w: &mut fmt::Formatter<'_>, cx: &Context, item: &clean::Item) -> fmt::Result {