Method char_to_position

src/editor/document.rs:82–89

(&self, char_idx: usize)

    }

    pub fn char_to_position(&self, char_idx: usize) -> (usize, usize) {
        let char_idx = char_idx.min(self.len_chars());
        let line = self.char_to_line(char_idx);
        let line_start = self.line_to_char(line);
        let prefix = self.slice_text(line_start, char_idx);
        let column = prefix.graphemes(true).count();
        (line, column.min(self.line_len_chars(line)))
    }

    pub fn char_at(&self, char_idx: usize) -> Option<char> {
        (char_idx < self.len_chars()).then(|| self.rope.char(char_idx))