Yehowshua/ZIm
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

🎨 excerpt_list::Chunks::next

Browse source
This commit is contained in:
Max Brunsfeld 2021-12-06 16:28:44 -08:00
parent 416033a01c
commit 09c0c3a0e7
1 changed files with 43 additions and 44 deletions
Download patch file Download diff file Expand all files Collapse all files

87
crates/language/src/excerpt_list.rs
View file

@ -356,54 +356,53 @@ impl<'a> Iterator for Chunks<'a> {
type Item = Chunk<'a>;
fn next(&mut self) -> Option<Self::Item> {
if self.header_height > 0 {
let chunk = Chunk {
text: unsafe {
std::str::from_utf8_unchecked(&NEWLINES[..self.header_height as usize])
},
..Default::default()
};
self.header_height = 0;
return Some(chunk);
}
if let Some(entry_chunks) = self.entry_chunks.as_mut() {
if let Some(chunk) = entry_chunks.next() {
return Some(chunk);
} else if self.range.end >= self.cursor.end(&()) {
self.entry_chunks.take();
return Some(Chunk {
text: "\n",
loop {
if self.header_height > 0 {
let chunk = Chunk {
text: unsafe {
std::str::from_utf8_unchecked(&NEWLINES[..self.header_height as usize])
},
..Default::default()
});
} else {
};
self.header_height = 0;
return Some(chunk);
}
if let Some(entry_chunks) = self.entry_chunks.as_mut() {
if let Some(chunk) = entry_chunks.next() {
return Some(chunk);
}
self.entry_chunks.take();
if self.cursor.end(&()) <= self.range.end {
return Some(Chunk {
text: "\n",
..Default::default()
});
}
}
self.cursor.next(&());
if *self.cursor.start() >= self.range.end {
return None;
}
let excerpt = self.cursor.item()?;
let buffer_range = excerpt.range.to_offset(&excerpt.buffer);
let buffer_end = cmp::min(
buffer_range.end,
buffer_range.start + self.range.end
- excerpt.header_height as usize
- self.cursor.start(),
);
self.header_height = excerpt.header_height;
self.entry_chunks = Some(
excerpt
.buffer
.chunks(buffer_range.start..buffer_end, self.theme),
);
}
self.cursor.next(&());
if *self.cursor.start() == self.range.end {
return None;
}
let excerpt = self.cursor.item()?;
let buffer_range = excerpt.range.to_offset(&excerpt.buffer);
let buffer_end = cmp::min(
buffer_range.end,
buffer_range.start + self.range.end
- excerpt.header_height as usize
- self.cursor.start(),
);
self.header_height = excerpt.header_height;
self.entry_chunks = Some(
excerpt
.buffer
.chunks(buffer_range.start..buffer_end, self.theme),
);
self.next()
}
}