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fix vim percent motion to better match the docs and observed behavior

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This commit is contained in:
Kay Simmons 2023-02-17 14:52:36 -08:00
parent eac33d732e
commit 57a7ff9a6f
8 changed files with 150 additions and 78 deletions
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84
crates/editor/src/multi_buffer.rs
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@ -2630,6 +2630,9 @@ impl MultiBufferSnapshot {
self.parse_count
}
/// Returns the smallest enclosing bracket ranges containing the given range or
/// None if no brackets contain range or the range is not contained in a single
/// excerpt
pub fn innermost_enclosing_bracket_ranges<T: ToOffset>(
&self,
range: Range<T>,
@ -2657,46 +2660,59 @@ impl MultiBufferSnapshot {
result
}
/// Returns enclosinng bracket ranges containing the given range or returns None if the range is
/// Returns enclosing bracket ranges containing the given range or returns None if the range is
/// not contained in a single excerpt
pub fn enclosing_bracket_ranges<'a, T: ToOffset>(
&'a self,
range: Range<T>,
) -> Option<impl Iterator<Item = (Range<usize>, Range<usize>)> + 'a> {
let range = range.start.to_offset(self)..range.end.to_offset(self);
self.excerpt_containing(range.clone())
.map(|(excerpt, excerpt_offset)| {
let excerpt_buffer_start = excerpt.range.context.start.to_offset(&excerpt.buffer);
let excerpt_buffer_end = excerpt_buffer_start + excerpt.text_summary.len;
let start_in_buffer =
excerpt_buffer_start + range.start.saturating_sub(excerpt_offset);
let end_in_buffer = excerpt_buffer_start + range.end.saturating_sub(excerpt_offset);
self.bracket_ranges(range.clone()).map(|range_pairs| {
range_pairs
.filter(move |(open, close)| open.start <= range.start && close.end >= range.end)
})
}
excerpt
.buffer
.enclosing_bracket_ranges(start_in_buffer..end_in_buffer)
.filter_map(move |(start_bracket_range, end_bracket_range)| {
if start_bracket_range.start < excerpt_buffer_start
|| end_bracket_range.end > excerpt_buffer_end
{
return None;
}
/// Returns bracket range pairs overlapping the given `range` or returns None if the `range` is
/// not contained in a single excerpt
pub fn bracket_ranges<'a, T: ToOffset>(
&'a self,
range: Range<T>,
) -> Option<impl Iterator<Item = (Range<usize>, Range<usize>)> + 'a> {
let range = range.start.to_offset(self)..range.end.to_offset(self);
let excerpt = self.excerpt_containing(range.clone());
excerpt.map(|(excerpt, excerpt_offset)| {
let excerpt_buffer_start = excerpt.range.context.start.to_offset(&excerpt.buffer);
let excerpt_buffer_end = excerpt_buffer_start + excerpt.text_summary.len;
let mut start_bracket_range = start_bracket_range.clone();
start_bracket_range.start =
excerpt_offset + (start_bracket_range.start - excerpt_buffer_start);
start_bracket_range.end =
excerpt_offset + (start_bracket_range.end - excerpt_buffer_start);
let start_in_buffer = excerpt_buffer_start + range.start.saturating_sub(excerpt_offset);
let end_in_buffer = excerpt_buffer_start + range.end.saturating_sub(excerpt_offset);
let mut end_bracket_range = end_bracket_range.clone();
end_bracket_range.start =
excerpt_offset + (end_bracket_range.start - excerpt_buffer_start);
end_bracket_range.end =
excerpt_offset + (end_bracket_range.end - excerpt_buffer_start);
Some((start_bracket_range, end_bracket_range))
})
})
excerpt
.buffer
.bracket_ranges(start_in_buffer..end_in_buffer)
.filter_map(move |(start_bracket_range, end_bracket_range)| {
if start_bracket_range.start < excerpt_buffer_start
|| end_bracket_range.end > excerpt_buffer_end
{
return None;
}
let mut start_bracket_range = start_bracket_range.clone();
start_bracket_range.start =
excerpt_offset + (start_bracket_range.start - excerpt_buffer_start);
start_bracket_range.end =
excerpt_offset + (start_bracket_range.end - excerpt_buffer_start);
let mut end_bracket_range = end_bracket_range.clone();
end_bracket_range.start =
excerpt_offset + (end_bracket_range.start - excerpt_buffer_start);
end_bracket_range.end =
excerpt_offset + (end_bracket_range.end - excerpt_buffer_start);
Some((start_bracket_range, end_bracket_range))
})
})
}
pub fn diagnostics_update_count(&self) -> usize {
@ -2945,10 +2961,14 @@ impl MultiBufferSnapshot {
let range = range.start.to_offset(self)..range.end.to_offset(self);
let mut cursor = self.excerpts.cursor::<usize>();
cursor.seek(&range.start, Bias::Right, &());
cursor.seek(&dbg!(range.start), Bias::Right, &());
let start_excerpt = cursor.item();
cursor.seek(&range.end, Bias::Right, &());
if range.start == range.end {
return start_excerpt.map(|excerpt| (excerpt, *cursor.start()));
}
cursor.seek(&dbg!(range.end), Bias::Right, &());
let end_excerpt = cursor.item();
start_excerpt