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Fix edge cases relating to running Delete with your cursor half way through an egc.

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This commit is contained in:
Aaron Muir Hamilton 2022-10-24 23:24:12 +00:00 • committed by Jeremy Soller
parent d6d896688f
commit e14588b2f6
1 changed files with 8 additions and 5 deletions
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13
src/buffer.rs
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@ -645,11 +645,14 @@ impl<'a> TextBuffer<'a> {
let line = &mut self.lines[self.cursor.line.get()]; let line = &mut self.lines[self.cursor.line.get()];
line.reset(); line.reset();
for (i, c) in line.text.grapheme_indices(true) { if let Some((i, c)) = line
if i == self.cursor.index { .text
line.text.replace_range(i..(i + c.len()), ""); .grapheme_indices(true)
break; .take_while(|(i, c)| *i <= self.cursor.index)
} .last()
{
line.text.replace_range(i..(i + c.len()), "");
self.cursor.index = i;
} }
} else if self.cursor.line.get() + 1 < self.lines.len() { } else if self.cursor.line.get() + 1 < self.lines.len() {
let old_line = self.lines.remove(self.cursor.line.get() + 1); let old_line = self.lines.remove(self.cursor.line.get() + 1);