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Simplify line ending calculation.

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This commit is contained in:
Blaž Hrastnik 2020-09-29 17:49:19 +09:00
parent 13d1ea542e
commit 1bb01d27ae
2 changed files with 9 additions and 11 deletions
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7
helix-core/src/state.rs
View file

@ -159,10 +159,9 @@ impl State {
(Direction::Forward, Granularity::Character) => {
// Clamp to line
let line = text.char_to_line(pos);
let start = text.line_to_char(line);
let len = text.line(line).len_chars();
// convert to 0-indexed, subtract another 1 because len_chars() counts \n
let end = start + len.saturating_sub(2);
// Line end is pos at the start of next line - 1
// subtract another 1 because the line ends with \n
let end = text.line_to_char(line + 1).saturating_sub(2);
std::cmp::min(nth_next_grapheme_boundary(&text.slice(..), pos, count), end)
}
(Direction::Forward, Granularity::Word) => {

13
helix-view/src/commands.rs
View file

@ -50,9 +50,10 @@ pub fn move_line_end(view: &mut View, count: usize) {
.into_iter()
.map(|index| {
// adjust all positions to the end of the line.
let line = view.state.doc.line(index);
let line_start = view.state.doc.line_to_char(index);
line_start + line.len_chars() - 1
// Line end is pos at the start of next line - 1
// subtract another 1 because the line ends with \n
view.state.doc.line_to_char(index + 1).saturating_sub(2)
})
.map(|pos| Range::new(pos, pos));
@ -236,10 +237,8 @@ pub fn open_below(view: &mut View, _count: usize) {
let positions: Vec<_> = lines
.into_iter()
.map(|index| {
// adjust all positions to the end of the line.
let line = view.state.doc.line(index);
let line_start = view.state.doc.line_to_char(index);
line_start + line.len_chars()
// adjust all positions to the end of the line/start of the next one.
view.state.doc.line_to_char(index + 1)
})
.collect();