Fix phantom lines in some CRLF files.

Fixes #415.  The issue was that cursor highlighting wasn't extending
to encompass the entire CRLF grapheme, and therefore ended up splitting
it.  This presumably was messing up other grapheme rendering as
well, and this fixes that as well.
This commit is contained in:
Nathan Vegdahl 2021-07-05 00:11:07 -07:00 committed by Ivan Tham
parent fc34efea12
commit 4952d6f801

View file

@ -8,7 +8,7 @@ use crate::{
use helix_core::{ use helix_core::{
coords_at_pos, coords_at_pos,
graphemes::ensure_grapheme_boundary, graphemes::{ensure_grapheme_boundary, next_grapheme_boundary},
syntax::{self, HighlightEvent}, syntax::{self, HighlightEvent},
LineEnding, Position, Range, LineEnding, Position, Range,
}; };
@ -187,19 +187,24 @@ impl EditorView {
(cursor_scope, selection_scope) (cursor_scope, selection_scope)
}; };
let cursor_end = next_grapheme_boundary(text, range.head); // Used in every case below.
if range.head == range.anchor { if range.head == range.anchor {
spans.push((cursor_scope, range.head..range.head + 1)); spans.push((cursor_scope, range.head..cursor_end));
continue; continue;
} }
let reverse = range.head < range.anchor; let reverse = range.head < range.anchor;
if reverse { if reverse {
spans.push((cursor_scope, range.head..range.head + 1)); spans.push((cursor_scope, range.head..cursor_end));
spans.push((selection_scope, range.head + 1..range.anchor + 1)); spans.push((
selection_scope,
cursor_end..next_grapheme_boundary(text, range.anchor),
));
} else { } else {
spans.push((selection_scope, range.anchor..range.head)); spans.push((selection_scope, range.anchor..range.head));
spans.push((cursor_scope, range.head..range.head + 1)); spans.push((cursor_scope, range.head..cursor_end));
} }
} }