Method delete_line

src/editor/document.rs:180–192

(&mut self, line: usize)

    }

    pub fn delete_line(&mut self, line: usize) {
        if line >= self.line_count() {
            return;
        }

        let start = self.rope.line_to_char(line);
        let end = if line + 1 < self.line_count() {
            self.rope.line_to_char(line + 1)
        } else {
            self.len_chars()
        };
        self.remove_char_range(start, end);
    }

    pub fn slice_text(&self, start: usize, end: usize) -> String {
        let start = start.min(self.len_chars());