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Fix off-by-one in extend_line_above #3689

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Sep 5, 2022
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Fix off-by-one in extend_line_above #3689

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4 changes: 2 additions & 2 deletions helix-term/src/commands.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1971,7 +1971,7 @@ fn extend_line_impl(cx: &mut Context, extend: Extend) {
let (start_line, end_line) = range.line_range(text.slice(..));

let start = text.line_to_char(match extend {
Extend::Above => start_line.saturating_sub(count),
Extend::Above => start_line.saturating_sub(count - 1),
Extend::Below => start_line,
});
let end = text.line_to_char(
Expand All @@ -1985,7 +1985,7 @@ fn extend_line_impl(cx: &mut Context, extend: Extend) {
// extend to previous/next line if current line is selected
let (anchor, head) = if range.from() == start && range.to() == end {
match extend {
Extend::Above => (end, text.line_to_char(start_line.saturating_sub(count + 1))),
Extend::Above => (end, text.line_to_char(start_line.saturating_sub(count))),
Extend::Below => (
start,
text.line_to_char((end_line + count + 1).min(text.len_lines())),
Expand Down