refactor: remove vt100 backend and make ghostty default

10 files changed, 0 insertions, 3948 deletions

diff --git a/vendor/vt100/src/attrs.rs b/vendor/vt100/src/attrs.rs
deleted file mode 100644
index e5044f2e..00000000
--- a/vendor/vt100/src/attrs.rs
+++ /dev/null
@@ -1,144 +0,0 @@
-use crate::term::BufWrite as _;
-
-/// Represents a foreground or background color for cells.
-#[derive(Eq, PartialEq, Debug, Copy, Clone, Default)]
-pub enum Color {
-    /// The default terminal color.
-    #[default]
-    Default,
-
-    /// An indexed terminal color.
-    Idx(u8),
-
-    /// An RGB terminal color. The parameters are (red, green, blue).
-    Rgb(u8, u8, u8),
-}
-
-const TEXT_MODE_INTENSITY: u8 = 0b0000_0011;
-const TEXT_MODE_BOLD: u8 = 0b0000_0001;
-const TEXT_MODE_DIM: u8 = 0b0000_0010;
-const TEXT_MODE_ITALIC: u8 = 0b0000_0100;
-const TEXT_MODE_UNDERLINE: u8 = 0b0000_1000;
-const TEXT_MODE_INVERSE: u8 = 0b0001_0000;
-
-#[derive(Default, Clone, Copy, PartialEq, Eq, Debug)]
-pub struct Attrs {
-    pub fgcolor: Color,
-    pub bgcolor: Color,
-    pub mode: u8,
-}
-
-impl Attrs {
-    pub fn bold(&self) -> bool {
-        self.mode & TEXT_MODE_BOLD != 0
-    }
-
-    pub fn dim(&self) -> bool {
-        self.mode & TEXT_MODE_DIM != 0
-    }
-
-    fn intensity(&self) -> u8 {
-        self.mode & TEXT_MODE_INTENSITY
-    }
-
-    pub fn set_bold(&mut self) {
-        self.mode &= !TEXT_MODE_INTENSITY;
-        self.mode |= TEXT_MODE_BOLD;
-    }
-
-    pub fn set_dim(&mut self) {
-        self.mode &= !TEXT_MODE_INTENSITY;
-        self.mode |= TEXT_MODE_DIM;
-    }
-
-    pub fn set_normal_intensity(&mut self) {
-        self.mode &= !TEXT_MODE_INTENSITY;
-    }
-
-    pub fn italic(&self) -> bool {
-        self.mode & TEXT_MODE_ITALIC != 0
-    }
-
-    pub fn set_italic(&mut self, italic: bool) {
-        if italic {
-            self.mode |= TEXT_MODE_ITALIC;
-        } else {
-            self.mode &= !TEXT_MODE_ITALIC;
-        }
-    }
-
-    pub fn underline(&self) -> bool {
-        self.mode & TEXT_MODE_UNDERLINE != 0
-    }
-
-    pub fn set_underline(&mut self, underline: bool) {
-        if underline {
-            self.mode |= TEXT_MODE_UNDERLINE;
-        } else {
-            self.mode &= !TEXT_MODE_UNDERLINE;
-        }
-    }
-
-    pub fn inverse(&self) -> bool {
-        self.mode & TEXT_MODE_INVERSE != 0
-    }
-
-    pub fn set_inverse(&mut self, inverse: bool) {
-        if inverse {
-            self.mode |= TEXT_MODE_INVERSE;
-        } else {
-            self.mode &= !TEXT_MODE_INVERSE;
-        }
-    }
-
-    pub fn write_escape_code_diff(
-        &self,
-        contents: &mut Vec<u8>,
-        other: &Self,
-    ) {
-        if self != other && self == &Self::default() {
-            crate::term::ClearAttrs.write_buf(contents);
-            return;
-        }
-
-        let attrs = crate::term::Attrs::default();
-
-        let attrs = if self.fgcolor == other.fgcolor {
-            attrs
-        } else {
-            attrs.fgcolor(self.fgcolor)
-        };
-        let attrs = if self.bgcolor == other.bgcolor {
-            attrs
-        } else {
-            attrs.bgcolor(self.bgcolor)
-        };
-        let attrs = if self.intensity() == other.intensity() {
-            attrs
-        } else {
-            attrs.intensity(match self.intensity() {
-                0 => crate::term::Intensity::Normal,
-                TEXT_MODE_BOLD => crate::term::Intensity::Bold,
-                TEXT_MODE_DIM => crate::term::Intensity::Dim,
-                _ => unreachable!(),
-            })
-        };
-        let attrs = if self.italic() == other.italic() {
-            attrs
-        } else {
-            attrs.italic(self.italic())
-        };
-        let attrs = if self.underline() == other.underline() {
-            attrs
-        } else {
-            attrs.underline(self.underline())
-        };
-        let attrs = if self.inverse() == other.inverse() {
-            attrs
-        } else {
-            attrs.inverse(self.inverse())
-        };
-
-        attrs.write_buf(contents);
-    }
-}
diff --git a/vendor/vt100/src/callbacks.rs b/vendor/vt100/src/callbacks.rs
deleted file mode 100644
index cce6f6c0..00000000
--- a/vendor/vt100/src/callbacks.rs
+++ /dev/null
@@ -1,69 +0,0 @@
-/// This trait is used by the parser to handle extra escape sequences that
-/// don't have an impact on the terminal screen directly.
-pub trait Callbacks {
-    /// This callback is called when the terminal requests an audible bell
-    /// (typically with `^G`).
-    fn audible_bell(&mut self, _: &mut crate::Screen) {}
-    /// This callback is called when the terminal requests a visual bell
-    /// (typically with `\eg`).
-    fn visual_bell(&mut self, _: &mut crate::Screen) {}
-    /// This callback is called when the terminal requests a resize
-    /// (typically with `\e[8;<rows>;<cols>t`).
-    fn resize(&mut self, _: &mut crate::Screen, _request: (u16, u16)) {}
-    /// This callback is called when the terminal requests the window title
-    /// to be set (typically with `\e]1;<icon_name>\a`)
-    fn set_window_icon_name(
-        &mut self,
-        _: &mut crate::Screen,
-        _icon_name: &[u8],
-    ) {
-    }
-    /// This callback is called when the terminal requests the window title
-    /// to be set (typically with `\e]2;<title>\a`)
-    fn set_window_title(&mut self, _: &mut crate::Screen, _title: &[u8]) {}
-    /// This callback is called when the terminal requests data to be copied
-    /// to the system clipboard (typically with `\e]52;<ty>;<data>\a`). Note
-    /// that `data` will be encoded as base64.
-    fn copy_to_clipboard(
-        &mut self,
-        _: &mut crate::Screen,
-        _ty: &[u8],
-        _data: &[u8],
-    ) {
-    }
-    /// This callback is called when the terminal requests data to be pasted
-    /// from the system clipboard (typically with `\e]52;<ty>;?\a`).
-    fn paste_from_clipboard(&mut self, _: &mut crate::Screen, _ty: &[u8]) {}
-    /// This callback is called when the terminal receives an escape sequence
-    /// which is otherwise not implemented.
-    fn unhandled_char(&mut self, _: &mut crate::Screen, _c: char) {}
-    /// This callback is called when the terminal receives a control
-    /// character which is otherwise not implemented.
-    fn unhandled_control(&mut self, _: &mut crate::Screen, _b: u8) {}
-    /// This callback is called when the terminal receives an escape sequence
-    /// which is otherwise not implemented.
-    fn unhandled_escape(
-        &mut self,
-        _: &mut crate::Screen,
-        _i1: Option<u8>,
-        _i2: Option<u8>,
-        _b: u8,
-    ) {
-    }
-    /// This callback is called when the terminal receives a CSI sequence
-    /// (`\e[`) which is otherwise not implemented.
-    fn unhandled_csi(
-        &mut self,
-        _: &mut crate::Screen,
-        _i1: Option<u8>,
-        _i2: Option<u8>,
-        _params: &[&[u16]],
-        _c: char,
-    ) {
-    }
-    /// This callback is called when the terminal receives a OSC sequence
-    /// (`\e]`) which is otherwise not implemented.
-    fn unhandled_osc(&mut self, _: &mut crate::Screen, _params: &[&[u8]]) {}
-}
-
-impl Callbacks for () {}
diff --git a/vendor/vt100/src/cell.rs b/vendor/vt100/src/cell.rs
deleted file mode 100644
index c000cf30..00000000
--- a/vendor/vt100/src/cell.rs
+++ /dev/null
@@ -1,179 +0,0 @@
-use unicode_width::UnicodeWidthChar as _;
-
-// chosen to make the size of the cell struct 32 bytes
-const CONTENT_BYTES: usize = 22;
-
-const IS_WIDE: u8 = 0b1000_0000;
-const IS_WIDE_CONTINUATION: u8 = 0b0100_0000;
-const LEN_BITS: u8 = 0b0001_1111;
-
-/// Represents a single terminal cell.
-#[derive(Clone, Debug, Eq)]
-pub struct Cell {
-    contents: [u8; CONTENT_BYTES],
-    len: u8,
-    attrs: crate::attrs::Attrs,
-}
-const _: () = assert!(std::mem::size_of::<Cell>() == 32);
-
-impl PartialEq<Self> for Cell {
-    fn eq(&self, other: &Self) -> bool {
-        if self.len != other.len {
-            return false;
-        }
-        if self.attrs != other.attrs {
-            return false;
-        }
-        let len = self.len();
-        self.contents[..len] == other.contents[..len]
-    }
-}
-
-impl Cell {
-    pub(crate) fn new() -> Self {
-        Self {
-            contents: Default::default(),
-            len: 0,
-            attrs: crate::attrs::Attrs::default(),
-        }
-    }
-
-    fn len(&self) -> usize {
-        usize::from(self.len & LEN_BITS)
-    }
-
-    pub(crate) fn set(&mut self, c: char, a: crate::attrs::Attrs) {
-        self.len = 0;
-        self.append_char(0, c);
-        // strings in this context should always be an arbitrary character
-        // followed by zero or more zero-width characters, so we should only
-        // have to look at the first character
-        self.set_wide(c.width().unwrap_or(1) > 1);
-        self.attrs = a;
-    }
-
-    pub(crate) fn append(&mut self, c: char) {
-        let len = self.len();
-        if len >= CONTENT_BYTES - 4 {
-            return;
-        }
-        if len == 0 {
-            self.contents[0] = b' ';
-            self.len += 1;
-        }
-
-        // we already checked that we have space for another codepoint
-        self.append_char(self.len(), c);
-    }
-
-    // Writes bytes representing c at start
-    // Requires caller to verify start <= CODEPOINTS_IN_CELL * 4
-    fn append_char(&mut self, start: usize, c: char) {
-        c.encode_utf8(&mut self.contents[start..]);
-        self.len += u8::try_from(c.len_utf8()).unwrap();
-    }
-
-    pub(crate) fn clear(&mut self, attrs: crate::attrs::Attrs) {
-        self.len = 0;
-        self.attrs = attrs;
-    }
-
-    /// Returns the text contents of the cell.
-    ///
-    /// Can include multiple unicode characters if combining characters are
-    /// used, but will contain at most one character with a non-zero character
-    /// width.
-    // Since contents has been constructed by appending chars encoded as UTF-8 it will be valid UTF-8
-    #[allow(clippy::missing_panics_doc)]
-    #[must_use]
-    pub fn contents(&self) -> &str {
-        std::str::from_utf8(&self.contents[..self.len()]).unwrap()
-    }
-
-    /// Returns whether the cell contains any text data.
-    #[must_use]
-    pub fn has_contents(&self) -> bool {
-        self.len() > 0
-    }
-
-    /// Returns whether the text data in the cell represents a wide character.
-    #[must_use]
-    pub fn is_wide(&self) -> bool {
-        self.len & IS_WIDE != 0
-    }
-
-    /// Returns whether the cell contains the second half of a wide character
-    /// (in other words, whether the previous cell in the row contains a wide
-    /// character)
-    #[must_use]
-    pub fn is_wide_continuation(&self) -> bool {
-        self.len & IS_WIDE_CONTINUATION != 0
-    }
-
-    fn set_wide(&mut self, wide: bool) {
-        if wide {
-            self.len |= IS_WIDE;
-        } else {
-            self.len &= !IS_WIDE;
-        }
-    }
-
-    pub(crate) fn set_wide_continuation(&mut self, wide: bool) {
-        if wide {
-            self.len |= IS_WIDE_CONTINUATION;
-        } else {
-            self.len &= !IS_WIDE_CONTINUATION;
-        }
-    }
-
-    pub(crate) fn attrs(&self) -> &crate::attrs::Attrs {
-        &self.attrs
-    }
-
-    /// Returns the foreground color of the cell.
-    #[must_use]
-    pub fn fgcolor(&self) -> crate::Color {
-        self.attrs.fgcolor
-    }
-
-    /// Returns the background color of the cell.
-    #[must_use]
-    pub fn bgcolor(&self) -> crate::Color {
-        self.attrs.bgcolor
-    }
-
-    /// Returns whether the cell should be rendered with the bold text
-    /// attribute.
-    #[must_use]
-    pub fn bold(&self) -> bool {
-        self.attrs.bold()
-    }
-
-    /// Returns whether the cell should be rendered with the dim text
-    /// attribute.
-    #[must_use]
-    pub fn dim(&self) -> bool {
-        self.attrs.dim()
-    }
-
-    /// Returns whether the cell should be rendered with the italic text
-    /// attribute.
-    #[must_use]
-    pub fn italic(&self) -> bool {
-        self.attrs.italic()
-    }
-
-    /// Returns whether the cell should be rendered with the underlined text
-    /// attribute.
-    #[must_use]
-    pub fn underline(&self) -> bool {
-        self.attrs.underline()
-    }
-
-    /// Returns whether the cell should be rendered with the inverse text
-    /// attribute.
-    #[must_use]
-    pub fn inverse(&self) -> bool {
-        self.attrs.inverse()
-    }
-}
diff --git a/vendor/vt100/src/grid.rs b/vendor/vt100/src/grid.rs
deleted file mode 100644
index f8958579..00000000
--- a/vendor/vt100/src/grid.rs
+++ /dev/null
@@ -1,740 +0,0 @@
-use crate::term::BufWrite as _;
-
-#[derive(Clone, Debug)]
-pub struct Grid {
-    size: Size,
-    pos: Pos,
-    saved_pos: Pos,
-    rows: Vec<crate::row::Row>,
-    scroll_top: u16,
-    scroll_bottom: u16,
-    origin_mode: bool,
-    saved_origin_mode: bool,
-    scrollback: std::collections::VecDeque<crate::row::Row>,
-    scrollback_len: usize,
-    scrollback_offset: usize,
-}
-
-impl Grid {
-    pub fn new(size: Size, scrollback_len: usize) -> Self {
-        Self {
-            size,
-            pos: Pos::default(),
-            saved_pos: Pos::default(),
-            rows: vec![],
-            scroll_top: 0,
-            scroll_bottom: size.rows - 1,
-            origin_mode: false,
-            saved_origin_mode: false,
-            scrollback: std::collections::VecDeque::new(),
-            scrollback_len,
-            scrollback_offset: 0,
-        }
-    }
-
-    pub fn allocate_rows(&mut self) {
-        if self.rows.is_empty() {
-            self.rows.extend(
-                std::iter::repeat_with(|| {
-                    crate::row::Row::new(self.size.cols)
-                })
-                .take(usize::from(self.size.rows)),
-            );
-        }
-    }
-
-    fn new_row(&self) -> crate::row::Row {
-        crate::row::Row::new(self.size.cols)
-    }
-
-    pub fn clear(&mut self) {
-        self.pos = Pos::default();
-        self.saved_pos = Pos::default();
-        for row in self.drawing_rows_mut() {
-            row.clear(crate::attrs::Attrs::default());
-        }
-        self.scroll_top = 0;
-        self.scroll_bottom = self.size.rows - 1;
-        self.origin_mode = false;
-        self.saved_origin_mode = false;
-    }
-
-    pub fn size(&self) -> Size {
-        self.size
-    }
-
-    pub fn set_size(&mut self, size: Size) {
-        if size.cols != self.size.cols {
-            for row in &mut self.rows {
-                row.wrap(false);
-            }
-        }
-
-        if self.scroll_bottom == self.size.rows - 1 {
-            self.scroll_bottom = size.rows - 1;
-        }
-
-        self.size = size;
-        for row in &mut self.rows {
-            row.resize(size.cols, crate::Cell::new());
-        }
-        self.rows.resize(usize::from(size.rows), self.new_row());
-
-        if self.scroll_bottom >= size.rows {
-            self.scroll_bottom = size.rows - 1;
-        }
-        if self.scroll_bottom < self.scroll_top {
-            self.scroll_top = 0;
-        }
-
-        self.row_clamp_top(false);
-        self.row_clamp_bottom(false);
-        self.col_clamp();
-
-        if self.saved_pos.row > self.size.rows - 1 {
-            self.saved_pos.row = self.size.rows - 1;
-        }
-        if self.saved_pos.col > self.size.cols - 1 {
-            self.saved_pos.col = self.size.cols - 1;
-        }
-    }
-
-    pub fn pos(&self) -> Pos {
-        self.pos
-    }
-
-    pub fn set_pos(&mut self, mut pos: Pos) {
-        if self.origin_mode {
-            pos.row = pos.row.saturating_add(self.scroll_top);
-        }
-        self.pos = pos;
-        self.row_clamp_top(self.origin_mode);
-        self.row_clamp_bottom(self.origin_mode);
-        self.col_clamp();
-    }
-
-    pub fn save_cursor(&mut self) {
-        self.saved_pos = self.pos;
-        self.saved_origin_mode = self.origin_mode;
-    }
-
-    pub fn restore_cursor(&mut self) {
-        self.pos = self.saved_pos;
-        self.origin_mode = self.saved_origin_mode;
-    }
-
-    pub fn visible_rows(&self) -> impl Iterator<Item = &crate::row::Row> {
-        let scrollback_len = self.scrollback.len();
-        let rows_len = self.rows.len();
-        self.scrollback
-            .iter()
-            .skip(scrollback_len - self.scrollback_offset)
-            // when scrollback_offset > rows_len (e.g. rows = 3,
-            // scrollback_len = 10, offset = 9) the skip(10 - 9)
-            // will take 9 rows instead of 3. we need to set
-            // the upper bound to rows_len (e.g. 3)
-            .take(rows_len)
-            // same for rows_len - scrollback_offset (e.g. 3 - 9).
-            // it'll panic with overflow. we have to saturate the subtraction.
-            .chain(
-                self.rows
-                    .iter()
-                    .take(rows_len.saturating_sub(self.scrollback_offset)),
-            )
-    }
-
-    pub fn drawing_rows(&self) -> impl Iterator<Item = &crate::row::Row> {
-        self.rows.iter()
-    }
-
-    pub fn drawing_rows_mut(
-        &mut self,
-    ) -> impl Iterator<Item = &mut crate::row::Row> {
-        self.rows.iter_mut()
-    }
-
-    pub fn visible_row(&self, row: u16) -> Option<&crate::row::Row> {
-        self.visible_rows().nth(usize::from(row))
-    }
-
-    pub fn drawing_row(&self, row: u16) -> Option<&crate::row::Row> {
-        self.drawing_rows().nth(usize::from(row))
-    }
-
-    pub fn drawing_row_mut(
-        &mut self,
-        row: u16,
-    ) -> Option<&mut crate::row::Row> {
-        self.drawing_rows_mut().nth(usize::from(row))
-    }
-
-    pub fn current_row_mut(&mut self) -> &mut crate::row::Row {
-        self.drawing_row_mut(self.pos.row)
-            // we assume self.pos.row is always valid
-            .unwrap()
-    }
-
-    pub fn visible_cell(&self, pos: Pos) -> Option<&crate::Cell> {
-        self.visible_row(pos.row).and_then(|r| r.get(pos.col))
-    }
-
-    pub fn drawing_cell(&self, pos: Pos) -> Option<&crate::Cell> {
-        self.drawing_row(pos.row).and_then(|r| r.get(pos.col))
-    }
-
-    pub fn drawing_cell_mut(&mut self, pos: Pos) -> Option<&mut crate::Cell> {
-        self.drawing_row_mut(pos.row)
-            .and_then(|r| r.get_mut(pos.col))
-    }
-
-    pub fn scrollback_len(&self) -> usize {
-        self.scrollback_len
-    }
-
-    pub fn scrollback(&self) -> usize {
-        self.scrollback_offset
-    }
-
-    pub fn set_scrollback(&mut self, rows: usize) {
-        self.scrollback_offset = rows.min(self.scrollback.len());
-    }
-
-    pub fn write_contents(&self, contents: &mut String) {
-        let mut wrapping = false;
-        for row in self.visible_rows() {
-            row.write_contents(contents, 0, self.size.cols, wrapping);
-            if !row.wrapped() {
-                contents.push('\n');
-            }
-            wrapping = row.wrapped();
-        }
-
-        while contents.ends_with('\n') {
-            contents.truncate(contents.len() - 1);
-        }
-    }
-
-    pub fn write_contents_formatted(
-        &self,
-        contents: &mut Vec<u8>,
-    ) -> crate::attrs::Attrs {
-        crate::term::ClearAttrs.write_buf(contents);
-        crate::term::ClearScreen.write_buf(contents);
-
-        let mut prev_attrs = crate::attrs::Attrs::default();
-        let mut prev_pos = Pos::default();
-        let mut wrapping = false;
-        for (i, row) in self.visible_rows().enumerate() {
-            // we limit the number of cols to a u16 (see Size), so
-            // visible_rows() can never return more rows than will fit
-            let i = i.try_into().unwrap();
-            let (new_pos, new_attrs) = row.write_contents_formatted(
-                contents,
-                0,
-                self.size.cols,
-                i,
-                wrapping,
-                Some(prev_pos),
-                Some(prev_attrs),
-            );
-            prev_pos = new_pos;
-            prev_attrs = new_attrs;
-            wrapping = row.wrapped();
-        }
-
-        self.write_cursor_position_formatted(
-            contents,
-            Some(prev_pos),
-            Some(prev_attrs),
-        );
-
-        prev_attrs
-    }
-
-    pub fn write_contents_diff(
-        &self,
-        contents: &mut Vec<u8>,
-        prev: &Self,
-        mut prev_attrs: crate::attrs::Attrs,
-    ) -> crate::attrs::Attrs {
-        let mut prev_pos = prev.pos;
-        let mut wrapping = false;
-        let mut prev_wrapping = false;
-        for (i, (row, prev_row)) in
-            self.visible_rows().zip(prev.visible_rows()).enumerate()
-        {
-            // we limit the number of cols to a u16 (see Size), so
-            // visible_rows() can never return more rows than will fit
-            let i = i.try_into().unwrap();
-            let (new_pos, new_attrs) = row.write_contents_diff(
-                contents,
-                prev_row,
-                0,
-                self.size.cols,
-                i,
-                wrapping,
-                prev_wrapping,
-                prev_pos,
-                prev_attrs,
-            );
-            prev_pos = new_pos;
-            prev_attrs = new_attrs;
-            wrapping = row.wrapped();
-            prev_wrapping = prev_row.wrapped();
-        }
-
-        self.write_cursor_position_formatted(
-            contents,
-            Some(prev_pos),
-            Some(prev_attrs),
-        );
-
-        prev_attrs
-    }
-
-    pub fn write_cursor_position_formatted(
-        &self,
-        contents: &mut Vec<u8>,
-        prev_pos: Option<Pos>,
-        prev_attrs: Option<crate::attrs::Attrs>,
-    ) {
-        let prev_attrs = prev_attrs.unwrap_or_default();
-        // writing a character to the last column of a row doesn't wrap the
-        // cursor immediately - it waits until the next character is actually
-        // drawn. it is only possible for the cursor to have this kind of
-        // position after drawing a character though, so if we end in this
-        // position, we need to redraw the character at the end of the row.
-        if prev_pos != Some(self.pos) && self.pos.col >= self.size.cols {
-            let mut pos = Pos {
-                row: self.pos.row,
-                col: self.size.cols - 1,
-            };
-            if self
-                .drawing_cell(pos)
-                // we assume self.pos.row is always valid, and self.size.cols
-                // - 1 is always a valid column
-                .unwrap()
-                .is_wide_continuation()
-            {
-                pos.col = self.size.cols - 2;
-            }
-            let cell =
-                // we assume self.pos.row is always valid, and self.size.cols
-                // - 2 must be a valid column because self.size.cols - 1 is
-                // always valid and we just checked that the cell at
-                // self.size.cols - 1 is a wide continuation character, which
-                // means that the first half of the wide character must be
-                // before it
-                self.drawing_cell(pos).unwrap();
-            if cell.has_contents() {
-                if let Some(prev_pos) = prev_pos {
-                    crate::term::MoveFromTo::new(prev_pos, pos)
-                        .write_buf(contents);
-                } else {
-                    crate::term::MoveTo::new(pos).write_buf(contents);
-                }
-                cell.attrs().write_escape_code_diff(contents, &prev_attrs);
-                contents.extend(cell.contents().as_bytes());
-                prev_attrs.write_escape_code_diff(contents, cell.attrs());
-            } else {
-                // if the cell doesn't have contents, we can't have gotten
-                // here by drawing a character in the last column. this means
-                // that as far as i'm aware, we have to have reached here from
-                // a newline when we were already after the end of an earlier
-                // row. in the case where we are already after the end of an
-                // earlier row, we can just write a few newlines, otherwise we
-                // also need to do the same as above to get ourselves to after
-                // the end of a row.
-                let mut found = false;
-                for i in (0..self.pos.row).rev() {
-                    pos.row = i;
-                    pos.col = self.size.cols - 1;
-                    if self
-                        .drawing_cell(pos)
-                        // i is always less than self.pos.row, which we assume
-                        // to be always valid, so it must also be valid.
-                        // self.size.cols - 1 is always a valid col.
-                        .unwrap()
-                        .is_wide_continuation()
-                    {
-                        pos.col = self.size.cols - 2;
-                    }
-                    let cell = self
-                        .drawing_cell(pos)
-                        // i is always less than self.pos.row, which we assume
-                        // to be always valid, so it must also be valid.
-                        // self.size.cols - 2 is valid because self.size.cols
-                        // - 1 is always valid, and col gets set to
-                        // self.size.cols - 2 when the cell at self.size.cols
-                        // - 1 is a wide continuation character, meaning that
-                        // the first half of the wide character must be before
-                        // it
-                        .unwrap();
-                    if cell.has_contents() {
-                        if let Some(prev_pos) = prev_pos {
-                            if prev_pos.row != i
-                                || prev_pos.col < self.size.cols
-                            {
-                                crate::term::MoveFromTo::new(prev_pos, pos)
-                                    .write_buf(contents);
-                                cell.attrs().write_escape_code_diff(
-                                    contents,
-                                    &prev_attrs,
-                                );
-                                contents.extend(cell.contents().as_bytes());
-                                prev_attrs.write_escape_code_diff(
-                                    contents,
-                                    cell.attrs(),
-                                );
-                            }
-                        } else {
-                            crate::term::MoveTo::new(pos).write_buf(contents);
-                            cell.attrs().write_escape_code_diff(
-                                contents,
-                                &prev_attrs,
-                            );
-                            contents.extend(cell.contents().as_bytes());
-                            prev_attrs.write_escape_code_diff(
-                                contents,
-                                cell.attrs(),
-                            );
-                        }
-                        contents.extend(
-                            "\n".repeat(usize::from(self.pos.row - i))
-                                .as_bytes(),
-                        );
-                        found = true;
-                        break;
-                    }
-                }
-
-                // this can happen if you get the cursor off the end of a row,
-                // and then do something to clear the end of the current row
-                // without moving the cursor (IL, DL, ED, EL, etc). we know
-                // there can't be something in the last column because we
-                // would have caught that above, so it should be safe to
-                // overwrite it.
-                if !found {
-                    pos = Pos {
-                        row: self.pos.row,
-                        col: self.size.cols - 1,
-                    };
-                    if let Some(prev_pos) = prev_pos {
-                        crate::term::MoveFromTo::new(prev_pos, pos)
-                            .write_buf(contents);
-                    } else {
-                        crate::term::MoveTo::new(pos).write_buf(contents);
-                    }
-                    contents.push(b' ');
-                    // we know that the cell has no contents, but it still may
-                    // have drawing attributes (background color, etc)
-                    let end_cell = self
-                        .drawing_cell(pos)
-                        // we assume self.pos.row is always valid, and
-                        // self.size.cols - 1 is always a valid column
-                        .unwrap();
-                    end_cell
-                        .attrs()
-                        .write_escape_code_diff(contents, &prev_attrs);
-                    crate::term::SaveCursor.write_buf(contents);
-                    crate::term::Backspace.write_buf(contents);
-                    crate::term::EraseChar::new(1).write_buf(contents);
-                    crate::term::RestoreCursor.write_buf(contents);
-                    prev_attrs
-                        .write_escape_code_diff(contents, end_cell.attrs());
-                }
-            }
-        } else if let Some(prev_pos) = prev_pos {
-            crate::term::MoveFromTo::new(prev_pos, self.pos)
-                .write_buf(contents);
-        } else {
-            crate::term::MoveTo::new(self.pos).write_buf(contents);
-        }
-    }
-
-    pub fn erase_all(&mut self, attrs: crate::attrs::Attrs) {
-        for row in self.drawing_rows_mut() {
-            row.clear(attrs);
-        }
-    }
-
-    pub fn erase_all_forward(&mut self, attrs: crate::attrs::Attrs) {
-        let pos = self.pos;
-        for row in self.drawing_rows_mut().skip(usize::from(pos.row) + 1) {
-            row.clear(attrs);
-        }
-
-        self.erase_row_forward(attrs);
-    }
-
-    pub fn erase_all_backward(&mut self, attrs: crate::attrs::Attrs) {
-        let pos = self.pos;
-        for row in self.drawing_rows_mut().take(usize::from(pos.row)) {
-            row.clear(attrs);
-        }
-
-        self.erase_row_backward(attrs);
-    }
-
-    pub fn erase_row(&mut self, attrs: crate::attrs::Attrs) {
-        self.current_row_mut().clear(attrs);
-    }
-
-    pub fn erase_row_forward(&mut self, attrs: crate::attrs::Attrs) {
-        let size = self.size;
-        let pos = self.pos;
-        let row = self.current_row_mut();
-        for col in pos.col..size.cols {
-            row.erase(col, attrs);
-        }
-    }
-
-    pub fn erase_row_backward(&mut self, attrs: crate::attrs::Attrs) {
-        let size = self.size;
-        let pos = self.pos;
-        let row = self.current_row_mut();
-        for col in 0..=pos.col.min(size.cols - 1) {
-            row.erase(col, attrs);
-        }
-    }
-
-    pub fn insert_cells(&mut self, count: u16) {
-        let size = self.size;
-        let pos = self.pos;
-        let wide = pos.col < size.cols
-            && self
-                .drawing_cell(pos)
-                // we assume self.pos.row is always valid, and we know we are
-                // not off the end of a row because we just checked pos.col <
-                // size.cols
-                .unwrap()
-                .is_wide_continuation();
-        let row = self.current_row_mut();
-        for _ in 0..count {
-            if wide {
-                row.get_mut(pos.col).unwrap().set_wide_continuation(false);
-            }
-            row.insert(pos.col, crate::Cell::new());
-            if wide {
-                row.get_mut(pos.col).unwrap().set_wide_continuation(true);
-            }
-        }
-        row.truncate(size.cols);
-    }
-
-    pub fn delete_cells(&mut self, count: u16) {
-        let size = self.size;
-        let pos = self.pos;
-        let row = self.current_row_mut();
-        for _ in 0..(count.min(size.cols - pos.col)) {
-            row.remove(pos.col);
-        }
-        row.resize(size.cols, crate::Cell::new());
-    }
-
-    pub fn erase_cells(&mut self, count: u16, attrs: crate::attrs::Attrs) {
-        let size = self.size;
-        let pos = self.pos;
-        let row = self.current_row_mut();
-        for col in pos.col..((pos.col.saturating_add(count)).min(size.cols)) {
-            row.erase(col, attrs);
-        }
-    }
-
-    pub fn insert_lines(&mut self, count: u16) {
-        for _ in 0..count {
-            self.rows.remove(usize::from(self.scroll_bottom));
-            self.rows.insert(usize::from(self.pos.row), self.new_row());
-            // self.scroll_bottom is maintained to always be a valid row
-            self.rows[usize::from(self.scroll_bottom)].wrap(false);
-        }
-    }
-
-    pub fn delete_lines(&mut self, count: u16) {
-        for _ in 0..(count.min(self.size.rows - self.pos.row)) {
-            self.rows
-                .insert(usize::from(self.scroll_bottom) + 1, self.new_row());
-            self.rows.remove(usize::from(self.pos.row));
-        }
-    }
-
-    pub fn scroll_up(&mut self, count: u16) {
-        for _ in 0..(count.min(self.size.rows - self.scroll_top)) {
-            self.rows
-                .insert(usize::from(self.scroll_bottom) + 1, self.new_row());
-            let removed = self.rows.remove(usize::from(self.scroll_top));
-            // Top-anchored scroll regions still represent terminal output moving
-            // off the visible transcript and should feed host scrollback.
-            if self.scrollback_len > 0 && self.scroll_top == 0 {
-                self.scrollback.push_back(removed);
-                while self.scrollback.len() > self.scrollback_len {
-                    self.scrollback.pop_front();
-                }
-                if self.scrollback_offset > 0 {
-                    self.scrollback_offset =
-                        self.scrollback.len().min(self.scrollback_offset + 1);
-                }
-            }
-        }
-    }
-
-    pub fn scroll_down(&mut self, count: u16) {
-        for _ in 0..count {
-            self.rows.remove(usize::from(self.scroll_bottom));
-            self.rows
-                .insert(usize::from(self.scroll_top), self.new_row());
-            // self.scroll_bottom is maintained to always be a valid row
-            self.rows[usize::from(self.scroll_bottom)].wrap(false);
-        }
-    }
-
-    pub fn set_scroll_region(&mut self, top: u16, bottom: u16) {
-        let bottom = bottom.min(self.size().rows - 1);
-        if top < bottom {
-            self.scroll_top = top;
-            self.scroll_bottom = bottom;
-        } else {
-            self.scroll_top = 0;
-            self.scroll_bottom = self.size().rows - 1;
-        }
-        self.pos.row = self.scroll_top;
-        self.pos.col = 0;
-    }
-
-    fn in_scroll_region(&self) -> bool {
-        self.pos.row >= self.scroll_top && self.pos.row <= self.scroll_bottom
-    }
-
-    pub fn set_origin_mode(&mut self, mode: bool) {
-        self.origin_mode = mode;
-        self.set_pos(Pos { row: 0, col: 0 });
-    }
-
-    pub fn row_inc_clamp(&mut self, count: u16) {
-        let in_scroll_region = self.in_scroll_region();
-        self.pos.row = self.pos.row.saturating_add(count);
-        self.row_clamp_bottom(in_scroll_region);
-    }
-
-    pub fn row_inc_scroll(&mut self, count: u16) -> u16 {
-        let in_scroll_region = self.in_scroll_region();
-        self.pos.row = self.pos.row.saturating_add(count);
-        let lines = self.row_clamp_bottom(in_scroll_region);
-        if in_scroll_region {
-            self.scroll_up(lines);
-            lines
-        } else {
-            0
-        }
-    }
-
-    pub fn row_dec_clamp(&mut self, count: u16) {
-        let in_scroll_region = self.in_scroll_region();
-        self.pos.row = self.pos.row.saturating_sub(count);
-        self.row_clamp_top(in_scroll_region);
-    }
-
-    pub fn row_dec_scroll(&mut self, count: u16) {
-        let in_scroll_region = self.in_scroll_region();
-        // need to account for clamping by both row_clamp_top and by
-        // saturating_sub
-        let extra_lines = count.saturating_sub(self.pos.row);
-        self.pos.row = self.pos.row.saturating_sub(count);
-        let lines = self.row_clamp_top(in_scroll_region);
-        self.scroll_down(lines + extra_lines);
-    }
-
-    pub fn row_set(&mut self, i: u16) {
-        self.pos.row = i;
-        self.row_clamp();
-    }
-
-    pub fn col_inc(&mut self, count: u16) {
-        self.pos.col = self.pos.col.saturating_add(count);
-    }
-
-    pub fn col_inc_clamp(&mut self, count: u16) {
-        self.pos.col = self.pos.col.saturating_add(count);
-        self.col_clamp();
-    }
-
-    pub fn col_dec(&mut self, count: u16) {
-        self.pos.col = self.pos.col.saturating_sub(count);
-    }
-
-    pub fn col_tab(&mut self) {
-        self.pos.col -= self.pos.col % 8;
-        self.pos.col += 8;
-        self.col_clamp();
-    }
-
-    pub fn col_set(&mut self, i: u16) {
-        self.pos.col = i;
-        self.col_clamp();
-    }
-
-    pub fn col_wrap(&mut self, width: u16, wrap: bool) {
-        if self.pos.col > self.size.cols - width {
-            let mut prev_pos = self.pos;
-            self.pos.col = 0;
-            let scrolled = self.row_inc_scroll(1);
-            prev_pos.row -= scrolled;
-            let new_pos = self.pos;
-            self.drawing_row_mut(prev_pos.row)
-                // we assume self.pos.row is always valid, and so prev_pos.row
-                // must be valid because it is always less than or equal to
-                // self.pos.row
-                .unwrap()
-                .wrap(wrap && prev_pos.row + 1 == new_pos.row);
-        }
-    }
-
-    fn row_clamp_top(&mut self, limit_to_scroll_region: bool) -> u16 {
-        if limit_to_scroll_region && self.pos.row < self.scroll_top {
-            let rows = self.scroll_top - self.pos.row;
-            self.pos.row = self.scroll_top;
-            rows
-        } else {
-            0
-        }
-    }
-
-    fn row_clamp_bottom(&mut self, limit_to_scroll_region: bool) -> u16 {
-        let bottom = if limit_to_scroll_region {
-            self.scroll_bottom
-        } else {
-            self.size.rows - 1
-        };
-        if self.pos.row > bottom {
-            let rows = self.pos.row - bottom;
-            self.pos.row = bottom;
-            rows
-        } else {
-            0
-        }
-    }
-
-    fn row_clamp(&mut self) {
-        if self.pos.row > self.size.rows - 1 {
-            self.pos.row = self.size.rows - 1;
-        }
-    }
-
-    fn col_clamp(&mut self) {
-        if self.pos.col > self.size.cols - 1 {
-            self.pos.col = self.size.cols - 1;
-        }
-    }
-}
-
-#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
-pub struct Size {
-    pub rows: u16,
-    pub cols: u16,
-}
-
-#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
-pub struct Pos {
-    pub row: u16,
-    pub col: u16,
-}
diff --git a/vendor/vt100/src/lib.rs b/vendor/vt100/src/lib.rs
deleted file mode 100644
index 19746a94..00000000
--- a/vendor/vt100/src/lib.rs
+++ /dev/null
@@ -1,64 +0,0 @@
-//! This crate parses a terminal byte stream and provides an in-memory
-//! representation of the rendered contents.
-//!
-//! # Overview
-//!
-//! This is essentially the terminal parser component of a graphical terminal
-//! emulator pulled out into a separate crate. Although you can use this crate
-//! to build a graphical terminal emulator, it also contains functionality
-//! necessary for implementing terminal applications that want to run other
-//! terminal applications - programs like `screen` or `tmux` for example.
-//!
-//! # Synopsis
-//!
-//! ```
-//! let mut parser = vt100::Parser::new(24, 80, 0);
-//!
-//! let screen = parser.screen().clone();
-//! parser.process(b"this text is \x1b[31mRED\x1b[m");
-//! assert_eq!(
-//!     parser.screen().cell(0, 13).unwrap().fgcolor(),
-//!     vt100::Color::Idx(1),
-//! );
-//!
-//! let screen = parser.screen().clone();
-//! parser.process(b"\x1b[3D\x1b[32mGREEN");
-//! assert_eq!(
-//!     parser.screen().contents_formatted(),
-//!     &b"\x1b[?25h\x1b[m\x1b[H\x1b[Jthis text is \x1b[32mGREEN"[..],
-//! );
-//! assert_eq!(
-//!     parser.screen().contents_diff(&screen),
-//!     &b"\x1b[1;14H\x1b[32mGREEN"[..],
-//! );
-//! ```
-
-#![warn(missing_docs)]
-#![warn(clippy::cargo)]
-#![warn(clippy::pedantic)]
-#![warn(clippy::nursery)]
-#![warn(clippy::as_conversions)]
-#![warn(clippy::get_unwrap)]
-#![allow(clippy::cognitive_complexity)]
-#![allow(clippy::missing_const_for_fn)]
-#![allow(clippy::similar_names)]
-#![allow(clippy::struct_excessive_bools)]
-#![allow(clippy::too_many_arguments)]
-#![allow(clippy::too_many_lines)]
-#![allow(clippy::type_complexity)]
-
-mod attrs;
-mod callbacks;
-mod cell;
-mod grid;
-mod parser;
-mod perform;
-mod row;
-mod screen;
-mod term;
-
-pub use attrs::Color;
-pub use callbacks::Callbacks;
-pub use cell::Cell;
-pub use parser::Parser;
-pub use screen::{MouseProtocolEncoding, MouseProtocolMode, Screen};
diff --git a/vendor/vt100/src/parser.rs b/vendor/vt100/src/parser.rs
deleted file mode 100644
index c81495b8..00000000
--- a/vendor/vt100/src/parser.rs
+++ /dev/null
@@ -1,96 +0,0 @@
-/// A parser for terminal output which produces an in-memory representation of
-/// the terminal contents.
-pub struct Parser<CB: crate::callbacks::Callbacks = ()> {
-    parser: vte::Parser,
-    screen: crate::perform::WrappedScreen<CB>,
-}
-
-impl Parser {
-    /// Creates a new terminal parser of the given size and with the given
-    /// amount of scrollback.
-    #[must_use]
-    pub fn new(rows: u16, cols: u16, scrollback_len: usize) -> Self {
-        Self {
-            parser: vte::Parser::new(),
-            screen: crate::perform::WrappedScreen::new(
-                rows,
-                cols,
-                scrollback_len,
-            ),
-        }
-    }
-}
-
-impl<CB: crate::callbacks::Callbacks> Parser<CB> {
-    /// Creates a new terminal parser of the given size and with the given
-    /// amount of scrollback. Terminal events will be reported via method
-    /// calls on the provided [`Callbacks`](crate::callbacks::Callbacks)
-    /// implementation.
-    pub fn new_with_callbacks(
-        rows: u16,
-        cols: u16,
-        scrollback_len: usize,
-        callbacks: CB,
-    ) -> Self {
-        Self {
-            parser: vte::Parser::new(),
-            screen: crate::perform::WrappedScreen::new_with_callbacks(
-                rows,
-                cols,
-                scrollback_len,
-                callbacks,
-            ),
-        }
-    }
-
-    /// Processes the contents of the given byte string, and updates the
-    /// in-memory terminal state.
-    pub fn process(&mut self, bytes: &[u8]) {
-        self.parser.advance(&mut self.screen, bytes);
-    }
-
-    /// Returns a reference to a [`Screen`](crate::Screen) object containing
-    /// the terminal state.
-    #[must_use]
-    pub fn screen(&self) -> &crate::Screen {
-        &self.screen.screen
-    }
-
-    /// Returns a mutable reference to a [`Screen`](crate::Screen) object
-    /// containing the terminal state.
-    #[must_use]
-    pub fn screen_mut(&mut self) -> &mut crate::Screen {
-        &mut self.screen.screen
-    }
-
-    /// Returns a reference to the [`Callbacks`](crate::callbacks::Callbacks)
-    /// state object passed into the constructor.
-    pub fn callbacks(&self) -> &CB {
-        &self.screen.callbacks
-    }
-
-    /// Returns a mutable reference to the
-    /// [`Callbacks`](crate::callbacks::Callbacks) state object passed into
-    /// the constructor.
-    pub fn callbacks_mut(&mut self) -> &mut CB {
-        &mut self.screen.callbacks
-    }
-}
-
-impl Default for Parser {
-    /// Returns a parser with dimensions 80x24 and no scrollback.
-    fn default() -> Self {
-        Self::new(24, 80, 0)
-    }
-}
-
-impl std::io::Write for Parser {
-    fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
-        self.process(buf);
-        Ok(buf.len())
-    }
-
-    fn flush(&mut self) -> std::io::Result<()> {
-        Ok(())
-    }
-}
diff --git a/vendor/vt100/src/perform.rs b/vendor/vt100/src/perform.rs
deleted file mode 100644
index e36cfd83..00000000
--- a/vendor/vt100/src/perform.rs
+++ /dev/null
@@ -1,277 +0,0 @@
-const BASE64: &[u8] =
-    b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
-const CLIPBOARD_SELECTOR: &[u8] = b"cpqs01234567";
-
-pub struct WrappedScreen<CB: crate::callbacks::Callbacks = ()> {
-    pub screen: crate::screen::Screen,
-    pub callbacks: CB,
-}
-
-impl WrappedScreen<()> {
-    pub fn new(rows: u16, cols: u16, scrollback_len: usize) -> Self {
-        Self::new_with_callbacks(rows, cols, scrollback_len, ())
-    }
-}
-
-impl<CB: crate::callbacks::Callbacks> WrappedScreen<CB> {
-    pub fn new_with_callbacks(
-        rows: u16,
-        cols: u16,
-        scrollback_len: usize,
-        callbacks: CB,
-    ) -> Self {
-        Self {
-            screen: crate::screen::Screen::new(
-                crate::grid::Size { rows, cols },
-                scrollback_len,
-            ),
-            callbacks,
-        }
-    }
-}
-
-impl<CB: crate::callbacks::Callbacks> vte::Perform for WrappedScreen<CB> {
-    fn print(&mut self, c: char) {
-        if c == '\u{fffd}' || ('\u{80}'..'\u{a0}').contains(&c) {
-            self.callbacks.unhandled_char(&mut self.screen, c);
-        } else {
-            self.screen.text(c);
-        }
-    }
-
-    fn execute(&mut self, b: u8) {
-        match b {
-            7 => self.callbacks.audible_bell(&mut self.screen),
-            8 => self.screen.bs(),
-            9 => self.screen.tab(),
-            10 => self.screen.lf(),
-            11 => self.screen.vt(),
-            12 => self.screen.ff(),
-            13 => self.screen.cr(),
-            // we don't implement shift in/out alternate character sets, but
-            // it shouldn't count as an "error"
-            14 | 15 => {}
-            _ => self.callbacks.unhandled_control(&mut self.screen, b),
-        }
-    }
-
-    fn esc_dispatch(&mut self, intermediates: &[u8], _ignore: bool, b: u8) {
-        if let Some(i) = intermediates.first() {
-            self.callbacks.unhandled_escape(
-                &mut self.screen,
-                Some(*i),
-                intermediates.get(1).copied(),
-                b,
-            );
-        } else {
-            match b {
-                b'7' => self.screen.decsc(),
-                b'8' => self.screen.decrc(),
-                b'=' => self.screen.deckpam(),
-                b'>' => self.screen.deckpnm(),
-                b'M' => self.screen.ri(),
-                b'c' => self.screen.ris(),
-                b'g' => self.callbacks.visual_bell(&mut self.screen),
-                _ => {
-                    self.callbacks.unhandled_escape(
-                        &mut self.screen,
-                        None,
-                        None,
-                        b,
-                    );
-                }
-            }
-        }
-    }
-
-    fn csi_dispatch(
-        &mut self,
-        params: &vte::Params,
-        intermediates: &[u8],
-        _ignore: bool,
-        c: char,
-    ) {
-        let unhandled = |screen: &mut crate::screen::Screen| {
-            self.callbacks.unhandled_csi(
-                screen,
-                intermediates.first().copied(),
-                intermediates.get(1).copied(),
-                &params.iter().collect::<Vec<_>>(),
-                c,
-            );
-        };
-        match intermediates.first() {
-            None => match c {
-                '@' => self.screen.ich(canonicalize_params_1(params, 1)),
-                'A' => self.screen.cuu(canonicalize_params_1(params, 1)),
-                'B' => self.screen.cud(canonicalize_params_1(params, 1)),
-                'C' => self.screen.cuf(canonicalize_params_1(params, 1)),
-                'D' => self.screen.cub(canonicalize_params_1(params, 1)),
-                'E' => self.screen.cnl(canonicalize_params_1(params, 1)),
-                'F' => self.screen.cpl(canonicalize_params_1(params, 1)),
-                'G' => self.screen.cha(canonicalize_params_1(params, 1)),
-                'H' => self.screen.cup(canonicalize_params_2(params, 1, 1)),
-                'J' => self
-                    .screen
-                    .ed(canonicalize_params_1(params, 0), unhandled),
-                'K' => self
-                    .screen
-                    .el(canonicalize_params_1(params, 0), unhandled),
-                'L' => self.screen.il(canonicalize_params_1(params, 1)),
-                'M' => self.screen.dl(canonicalize_params_1(params, 1)),
-                'P' => self.screen.dch(canonicalize_params_1(params, 1)),
-                'S' => self.screen.su(canonicalize_params_1(params, 1)),
-                'T' => self.screen.sd(canonicalize_params_1(params, 1)),
-                'X' => self.screen.ech(canonicalize_params_1(params, 1)),
-                'd' => self.screen.vpa(canonicalize_params_1(params, 1)),
-                'm' => self.screen.sgr(params, unhandled),
-                'r' => self.screen.decstbm(canonicalize_params_decstbm(
-                    params,
-                    self.screen.grid().size(),
-                )),
-                't' => {
-                    let mut params_iter = params.iter();
-                    let op =
-                        params_iter.next().and_then(|x| x.first().copied());
-                    if op == Some(8) {
-                        let (screen_rows, screen_cols) = self.screen.size();
-                        let rows =
-                            params_iter.next().map_or(screen_rows, |x| {
-                                *x.first().unwrap_or(&screen_rows)
-                            });
-                        let cols =
-                            params_iter.next().map_or(screen_cols, |x| {
-                                *x.first().unwrap_or(&screen_cols)
-                            });
-                        self.callbacks.resize(&mut self.screen, (rows, cols));
-                    } else {
-                        self.callbacks.unhandled_csi(
-                            &mut self.screen,
-                            None,
-                            None,
-                            &params.iter().collect::<Vec<_>>(),
-                            c,
-                        );
-                    }
-                }
-                _ => {
-                    self.callbacks.unhandled_csi(
-                        &mut self.screen,
-                        None,
-                        None,
-                        &params.iter().collect::<Vec<_>>(),
-                        c,
-                    );
-                }
-            },
-            Some(b'?') => match c {
-                'J' => self
-                    .screen
-                    .decsed(canonicalize_params_1(params, 0), unhandled),
-                'K' => self
-                    .screen
-                    .decsel(canonicalize_params_1(params, 0), unhandled),
-                'h' => self.screen.decset(params, unhandled),
-                'l' => self.screen.decrst(params, unhandled),
-                _ => {
-                    self.callbacks.unhandled_csi(
-                        &mut self.screen,
-                        Some(b'?'),
-                        intermediates.get(1).copied(),
-                        &params.iter().collect::<Vec<_>>(),
-                        c,
-                    );
-                }
-            },
-            Some(i) => {
-                self.callbacks.unhandled_csi(
-                    &mut self.screen,
-                    Some(*i),
-                    intermediates.get(1).copied(),
-                    &params.iter().collect::<Vec<_>>(),
-                    c,
-                );
-            }
-        }
-    }
-
-    fn osc_dispatch(&mut self, params: &[&[u8]], _bel_terminated: bool) {
-        match params {
-            [b"0", s] => {
-                self.callbacks.set_window_icon_name(&mut self.screen, s);
-                self.callbacks.set_window_title(&mut self.screen, s);
-            }
-            [b"1", s] => {
-                self.callbacks.set_window_icon_name(&mut self.screen, s);
-            }
-            [b"2", s] => {
-                self.callbacks.set_window_title(&mut self.screen, s);
-            }
-            [b"52", ty, data] => {
-                match (
-                    ty.iter().all(|c| CLIPBOARD_SELECTOR.contains(c)),
-                    *data,
-                ) {
-                    (true, b"?") => {
-                        self.callbacks
-                            .paste_from_clipboard(&mut self.screen, ty);
-                    }
-                    (true, data)
-                        if data.iter().all(|c| BASE64.contains(c)) =>
-                    {
-                        self.callbacks.copy_to_clipboard(
-                            &mut self.screen,
-                            ty,
-                            data,
-                        );
-                    }
-                    _ => {
-                        self.callbacks
-                            .unhandled_osc(&mut self.screen, params);
-                    }
-                }
-            }
-            _ => {
-                self.callbacks.unhandled_osc(&mut self.screen, params);
-            }
-        }
-    }
-}
-
-fn canonicalize_params_1(params: &vte::Params, default: u16) -> u16 {
-    let first = params.iter().next().map_or(0, |x| *x.first().unwrap_or(&0));
-    if first == 0 {
-        default
-    } else {
-        first
-    }
-}
-
-fn canonicalize_params_2(
-    params: &vte::Params,
-    default1: u16,
-    default2: u16,
-) -> (u16, u16) {
-    let mut iter = params.iter();
-    let first = iter.next().map_or(0, |x| *x.first().unwrap_or(&0));
-    let first = if first == 0 { default1 } else { first };
-
-    let second = iter.next().map_or(0, |x| *x.first().unwrap_or(&0));
-    let second = if second == 0 { default2 } else { second };
-
-    (first, second)
-}
-
-fn canonicalize_params_decstbm(
-    params: &vte::Params,
-    size: crate::grid::Size,
-) -> (u16, u16) {
-    let mut iter = params.iter();
-    let top = iter.next().map_or(0, |x| *x.first().unwrap_or(&0));
-    let top = if top == 0 { 1 } else { top };
-
-    let bottom = iter.next().map_or(0, |x| *x.first().unwrap_or(&0));
-    let bottom = if bottom == 0 { size.rows } else { bottom };
-
-    (top, bottom)
-}
diff --git a/vendor/vt100/src/row.rs b/vendor/vt100/src/row.rs
deleted file mode 100644
index 4ae8d868..00000000
--- a/vendor/vt100/src/row.rs
+++ /dev/null
@@ -1,474 +0,0 @@
-use crate::term::BufWrite as _;
-
-#[derive(Clone, Debug)]
-pub struct Row {
-    cells: Vec<crate::Cell>,
-    wrapped: bool,
-}
-
-impl Row {
-    pub fn new(cols: u16) -> Self {
-        Self {
-            cells: vec![crate::Cell::new(); usize::from(cols)],
-            wrapped: false,
-        }
-    }
-
-    fn cols(&self) -> u16 {
-        self.cells
-            .len()
-            .try_into()
-            // we limit the number of cols to a u16 (see Size)
-            .unwrap()
-    }
-
-    pub fn clear(&mut self, attrs: crate::attrs::Attrs) {
-        for cell in &mut self.cells {
-            cell.clear(attrs);
-        }
-        self.wrapped = false;
-    }
-
-    fn cells(&self) -> impl Iterator<Item = &crate::Cell> {
-        self.cells.iter()
-    }
-
-    pub fn get(&self, col: u16) -> Option<&crate::Cell> {
-        self.cells.get(usize::from(col))
-    }
-
-    pub fn get_mut(&mut self, col: u16) -> Option<&mut crate::Cell> {
-        self.cells.get_mut(usize::from(col))
-    }
-
-    pub fn insert(&mut self, i: u16, cell: crate::Cell) {
-        self.cells.insert(usize::from(i), cell);
-        self.wrapped = false;
-    }
-
-    pub fn remove(&mut self, i: u16) {
-        self.clear_wide(i);
-        self.cells.remove(usize::from(i));
-        self.wrapped = false;
-    }
-
-    pub fn erase(&mut self, i: u16, attrs: crate::attrs::Attrs) {
-        let wide = self.cells[usize::from(i)].is_wide();
-        self.clear_wide(i);
-        self.cells[usize::from(i)].clear(attrs);
-        if i == self.cols() - if wide { 2 } else { 1 } {
-            self.wrapped = false;
-        }
-    }
-
-    pub fn truncate(&mut self, len: u16) {
-        self.cells.truncate(usize::from(len));
-        self.wrapped = false;
-        let last_cell = &mut self.cells[usize::from(len) - 1];
-        if last_cell.is_wide() {
-            last_cell.clear(*last_cell.attrs());
-        }
-    }
-
-    pub fn resize(&mut self, len: u16, cell: crate::Cell) {
-        self.cells.resize(usize::from(len), cell);
-        self.wrapped = false;
-    }
-
-    pub fn wrap(&mut self, wrap: bool) {
-        self.wrapped = wrap;
-    }
-
-    pub fn wrapped(&self) -> bool {
-        self.wrapped
-    }
-
-    pub fn clear_wide(&mut self, col: u16) {
-        let cell = &self.cells[usize::from(col)];
-        let other = if cell.is_wide() {
-            &mut self.cells[usize::from(col + 1)]
-        } else if cell.is_wide_continuation() {
-            &mut self.cells[usize::from(col - 1)]
-        } else {
-            return;
-        };
-        other.clear(*other.attrs());
-    }
-
-    pub fn write_contents(
-        &self,
-        contents: &mut String,
-        start: u16,
-        width: u16,
-        wrapping: bool,
-    ) {
-        let mut prev_was_wide = false;
-
-        let mut prev_col = start;
-        for (col, cell) in self
-            .cells()
-            .enumerate()
-            .skip(usize::from(start))
-            .take(usize::from(width))
-        {
-            if prev_was_wide {
-                prev_was_wide = false;
-                continue;
-            }
-            prev_was_wide = cell.is_wide();
-
-            // we limit the number of cols to a u16 (see Size)
-            let col: u16 = col.try_into().unwrap();
-            if cell.has_contents() {
-                for _ in 0..(col - prev_col) {
-                    contents.push(' ');
-                }
-                prev_col += col - prev_col;
-
-                contents.push_str(cell.contents());
-                prev_col += if cell.is_wide() { 2 } else { 1 };
-            }
-        }
-        if prev_col == start && wrapping {
-            contents.push('\n');
-        }
-    }
-
-    pub fn write_contents_formatted(
-        &self,
-        contents: &mut Vec<u8>,
-        start: u16,
-        width: u16,
-        row: u16,
-        wrapping: bool,
-        prev_pos: Option<crate::grid::Pos>,
-        prev_attrs: Option<crate::attrs::Attrs>,
-    ) -> (crate::grid::Pos, crate::attrs::Attrs) {
-        let mut prev_was_wide = false;
-        let default_cell = crate::Cell::new();
-
-        let mut prev_pos = prev_pos.unwrap_or_else(|| {
-            if wrapping {
-                crate::grid::Pos {
-                    row: row - 1,
-                    col: self.cols(),
-                }
-            } else {
-                crate::grid::Pos { row, col: start }
-            }
-        });
-        let mut prev_attrs = prev_attrs.unwrap_or_default();
-
-        let first_cell = &self.cells[usize::from(start)];
-        if wrapping && first_cell == &default_cell {
-            let default_attrs = default_cell.attrs();
-            if &prev_attrs != default_attrs {
-                default_attrs.write_escape_code_diff(contents, &prev_attrs);
-                prev_attrs = *default_attrs;
-            }
-            contents.push(b' ');
-            crate::term::Backspace.write_buf(contents);
-            crate::term::EraseChar::new(1).write_buf(contents);
-            prev_pos = crate::grid::Pos { row, col: 0 };
-        }
-
-        let mut erase: Option<(u16, &crate::attrs::Attrs)> = None;
-        for (col, cell) in self
-            .cells()
-            .enumerate()
-            .skip(usize::from(start))
-            .take(usize::from(width))
-        {
-            if prev_was_wide {
-                prev_was_wide = false;
-                continue;
-            }
-            prev_was_wide = cell.is_wide();
-
-            // we limit the number of cols to a u16 (see Size)
-            let col: u16 = col.try_into().unwrap();
-            let pos = crate::grid::Pos { row, col };
-
-            if let Some((prev_col, attrs)) = erase {
-                if cell.has_contents() || cell.attrs() != attrs {
-                    let new_pos = crate::grid::Pos { row, col: prev_col };
-                    if wrapping
-                        && prev_pos.row + 1 == new_pos.row
-                        && prev_pos.col >= self.cols()
-                    {
-                        if new_pos.col > 0 {
-                            contents.extend(
-                                " ".repeat(usize::from(new_pos.col))
-                                    .as_bytes(),
-                            );
-                        } else {
-                            contents.extend(b" ");
-                            crate::term::Backspace.write_buf(contents);
-                        }
-                    } else {
-                        crate::term::MoveFromTo::new(prev_pos, new_pos)
-                            .write_buf(contents);
-                    }
-                    prev_pos = new_pos;
-                    if &prev_attrs != attrs {
-                        attrs.write_escape_code_diff(contents, &prev_attrs);
-                        prev_attrs = *attrs;
-                    }
-                    crate::term::EraseChar::new(pos.col - prev_col)
-                        .write_buf(contents);
-                    erase = None;
-                }
-            }
-
-            if cell != &default_cell {
-                let attrs = cell.attrs();
-                if cell.has_contents() {
-                    if pos != prev_pos {
-                        if !wrapping
-                            || prev_pos.row + 1 != pos.row
-                            || prev_pos.col
-                                < self.cols() - u16::from(cell.is_wide())
-                            || pos.col != 0
-                        {
-                            crate::term::MoveFromTo::new(prev_pos, pos)
-                                .write_buf(contents);
-                        }
-                        prev_pos = pos;
-                    }
-
-                    if &prev_attrs != attrs {
-                        attrs.write_escape_code_diff(contents, &prev_attrs);
-                        prev_attrs = *attrs;
-                    }
-
-                    prev_pos.col += if cell.is_wide() { 2 } else { 1 };
-                    let cell_contents = cell.contents();
-                    contents.extend(cell_contents.as_bytes());
-                } else if erase.is_none() {
-                    erase = Some((pos.col, attrs));
-                }
-            }
-        }
-        if let Some((prev_col, attrs)) = erase {
-            let new_pos = crate::grid::Pos { row, col: prev_col };
-            if wrapping
-                && prev_pos.row + 1 == new_pos.row
-                && prev_pos.col >= self.cols()
-            {
-                if new_pos.col > 0 {
-                    contents.extend(
-                        " ".repeat(usize::from(new_pos.col)).as_bytes(),
-                    );
-                } else {
-                    contents.extend(b" ");
-                    crate::term::Backspace.write_buf(contents);
-                }
-            } else {
-                crate::term::MoveFromTo::new(prev_pos, new_pos)
-                    .write_buf(contents);
-            }
-            prev_pos = new_pos;
-            if &prev_attrs != attrs {
-                attrs.write_escape_code_diff(contents, &prev_attrs);
-                prev_attrs = *attrs;
-            }
-            crate::term::ClearRowForward.write_buf(contents);
-        }
-
-        (prev_pos, prev_attrs)
-    }
-
-    // while it's true that most of the logic in this is identical to
-    // write_contents_formatted, i can't figure out how to break out the
-    // common parts without making things noticeably slower.
-    pub fn write_contents_diff(
-        &self,
-        contents: &mut Vec<u8>,
-        prev: &Self,
-        start: u16,
-        width: u16,
-        row: u16,
-        wrapping: bool,
-        prev_wrapping: bool,
-        mut prev_pos: crate::grid::Pos,
-        mut prev_attrs: crate::attrs::Attrs,
-    ) -> (crate::grid::Pos, crate::attrs::Attrs) {
-        let mut prev_was_wide = false;
-
-        let first_cell = &self.cells[usize::from(start)];
-        let prev_first_cell = &prev.cells[usize::from(start)];
-        if wrapping
-            && !prev_wrapping
-            && first_cell == prev_first_cell
-            && prev_pos.row + 1 == row
-            && prev_pos.col
-                >= self.cols() - u16::from(prev_first_cell.is_wide())
-        {
-            let first_cell_attrs = first_cell.attrs();
-            if &prev_attrs != first_cell_attrs {
-                first_cell_attrs
-                    .write_escape_code_diff(contents, &prev_attrs);
-                prev_attrs = *first_cell_attrs;
-            }
-            let mut cell_contents = prev_first_cell.contents();
-            let need_erase = if cell_contents.is_empty() {
-                cell_contents = " ";
-                true
-            } else {
-                false
-            };
-            contents.extend(cell_contents.as_bytes());
-            crate::term::Backspace.write_buf(contents);
-            if prev_first_cell.is_wide() {
-                crate::term::Backspace.write_buf(contents);
-            }
-            if need_erase {
-                crate::term::EraseChar::new(1).write_buf(contents);
-            }
-            prev_pos = crate::grid::Pos { row, col: 0 };
-        }
-
-        let mut erase: Option<(u16, &crate::attrs::Attrs)> = None;
-        for (col, (cell, prev_cell)) in self
-            .cells()
-            .zip(prev.cells())
-            .enumerate()
-            .skip(usize::from(start))
-            .take(usize::from(width))
-        {
-            if prev_was_wide {
-                prev_was_wide = false;
-                continue;
-            }
-            prev_was_wide = cell.is_wide();
-
-            // we limit the number of cols to a u16 (see Size)
-            let col: u16 = col.try_into().unwrap();
-            let pos = crate::grid::Pos { row, col };
-
-            if let Some((prev_col, attrs)) = erase {
-                if cell.has_contents() || cell.attrs() != attrs {
-                    let new_pos = crate::grid::Pos { row, col: prev_col };
-                    if wrapping
-                        && prev_pos.row + 1 == new_pos.row
-                        && prev_pos.col >= self.cols()
-                    {
-                        if new_pos.col > 0 {
-                            contents.extend(
-                                " ".repeat(usize::from(new_pos.col))
-                                    .as_bytes(),
-                            );
-                        } else {
-                            contents.extend(b" ");
-                            crate::term::Backspace.write_buf(contents);
-                        }
-                    } else {
-                        crate::term::MoveFromTo::new(prev_pos, new_pos)
-                            .write_buf(contents);
-                    }
-                    prev_pos = new_pos;
-                    if &prev_attrs != attrs {
-                        attrs.write_escape_code_diff(contents, &prev_attrs);
-                        prev_attrs = *attrs;
-                    }
-                    crate::term::EraseChar::new(pos.col - prev_col)
-                        .write_buf(contents);
-                    erase = None;
-                }
-            }
-
-            if cell != prev_cell {
-                let attrs = cell.attrs();
-                if cell.has_contents() {
-                    if pos != prev_pos {
-                        if !wrapping
-                            || prev_pos.row + 1 != pos.row
-                            || prev_pos.col
-                                < self.cols() - u16::from(cell.is_wide())
-                            || pos.col != 0
-                        {
-                            crate::term::MoveFromTo::new(prev_pos, pos)
-                                .write_buf(contents);
-                        }
-                        prev_pos = pos;
-                    }
-
-                    if &prev_attrs != attrs {
-                        attrs.write_escape_code_diff(contents, &prev_attrs);
-                        prev_attrs = *attrs;
-                    }
-
-                    prev_pos.col += if cell.is_wide() { 2 } else { 1 };
-                    contents.extend(cell.contents().as_bytes());
-                } else if erase.is_none() {
-                    erase = Some((pos.col, attrs));
-                }
-            }
-        }
-        if let Some((prev_col, attrs)) = erase {
-            let new_pos = crate::grid::Pos { row, col: prev_col };
-            if wrapping
-                && prev_pos.row + 1 == new_pos.row
-                && prev_pos.col >= self.cols()
-            {
-                if new_pos.col > 0 {
-                    contents.extend(
-                        " ".repeat(usize::from(new_pos.col)).as_bytes(),
-                    );
-                } else {
-                    contents.extend(b" ");
-                    crate::term::Backspace.write_buf(contents);
-                }
-            } else {
-                crate::term::MoveFromTo::new(prev_pos, new_pos)
-                    .write_buf(contents);
-            }
-            prev_pos = new_pos;
-            if &prev_attrs != attrs {
-                attrs.write_escape_code_diff(contents, &prev_attrs);
-                prev_attrs = *attrs;
-            }
-            crate::term::ClearRowForward.write_buf(contents);
-        }
-
-        // if this row is going from wrapped to not wrapped, we need to erase
-        // and redraw the last character to break wrapping. if this row is
-        // wrapped, we need to redraw the last character without erasing it to
-        // position the cursor after the end of the line correctly so that
-        // drawing the next line can just start writing and be wrapped.
-        if (!self.wrapped && prev.wrapped) || (!prev.wrapped && self.wrapped)
-        {
-            let end_pos = if self.cells[usize::from(self.cols() - 1)]
-                .is_wide_continuation()
-            {
-                crate::grid::Pos {
-                    row,
-                    col: self.cols() - 2,
-                }
-            } else {
-                crate::grid::Pos {
-                    row,
-                    col: self.cols() - 1,
-                }
-            };
-            crate::term::MoveFromTo::new(prev_pos, end_pos)
-                .write_buf(contents);
-            prev_pos = end_pos;
-            if !self.wrapped {
-                crate::term::EraseChar::new(1).write_buf(contents);
-            }
-            let end_cell = &self.cells[usize::from(end_pos.col)];
-            if end_cell.has_contents() {
-                let attrs = end_cell.attrs();
-                if &prev_attrs != attrs {
-                    attrs.write_escape_code_diff(contents, &prev_attrs);
-                    prev_attrs = *attrs;
-                }
-                contents.extend(end_cell.contents().as_bytes());
-                prev_pos.col += if end_cell.is_wide() { 2 } else { 1 };
-            }
-        }
-
-        (prev_pos, prev_attrs)
-    }
-}
diff --git a/vendor/vt100/src/screen.rs b/vendor/vt100/src/screen.rs
deleted file mode 100644
index 7dfec97d..00000000
--- a/vendor/vt100/src/screen.rs
+++ /dev/null
@@ -1,1354 +0,0 @@
-use crate::term::BufWrite as _;
-use unicode_width::UnicodeWidthChar as _;
-
-const MODE_APPLICATION_KEYPAD: u8 = 0b0000_0001;
-const MODE_APPLICATION_CURSOR: u8 = 0b0000_0010;
-const MODE_HIDE_CURSOR: u8 = 0b0000_0100;
-const MODE_ALTERNATE_SCREEN: u8 = 0b0000_1000;
-const MODE_BRACKETED_PASTE: u8 = 0b0001_0000;
-
-/// The xterm mouse handling mode currently in use.
-#[derive(Copy, Clone, Debug, Eq, PartialEq, Default)]
-pub enum MouseProtocolMode {
-    /// Mouse handling is disabled.
-    #[default]
-    None,
-
-    /// Mouse button events should be reported on button press. Also known as
-    /// X10 mouse mode.
-    Press,
-
-    /// Mouse button events should be reported on button press and release.
-    /// Also known as VT200 mouse mode.
-    PressRelease,
-
-    // Highlight,
-    /// Mouse button events should be reported on button press and release, as
-    /// well as when the mouse moves between cells while a button is held
-    /// down.
-    ButtonMotion,
-
-    /// Mouse button events should be reported on button press and release,
-    /// and mouse motion events should be reported when the mouse moves
-    /// between cells regardless of whether a button is held down or not.
-    AnyMotion,
-    // DecLocator,
-}
-
-/// The encoding to use for the enabled [`MouseProtocolMode`].
-#[derive(Copy, Clone, Debug, Eq, PartialEq, Default)]
-pub enum MouseProtocolEncoding {
-    /// Default single-printable-byte encoding.
-    #[default]
-    Default,
-
-    /// UTF-8-based encoding.
-    Utf8,
-
-    /// SGR-like encoding.
-    Sgr,
-    // Urxvt,
-}
-
-/// Represents the overall terminal state.
-#[derive(Clone, Debug)]
-pub struct Screen {
-    grid: crate::grid::Grid,
-    alternate_grid: crate::grid::Grid,
-
-    attrs: crate::attrs::Attrs,
-    saved_attrs: crate::attrs::Attrs,
-
-    modes: u8,
-    mouse_protocol_mode: MouseProtocolMode,
-    mouse_protocol_encoding: MouseProtocolEncoding,
-}
-
-impl Screen {
-    pub(crate) fn new(
-        size: crate::grid::Size,
-        scrollback_len: usize,
-    ) -> Self {
-        let mut grid = crate::grid::Grid::new(size, scrollback_len);
-        grid.allocate_rows();
-        Self {
-            grid,
-            alternate_grid: crate::grid::Grid::new(size, 0),
-
-            attrs: crate::attrs::Attrs::default(),
-            saved_attrs: crate::attrs::Attrs::default(),
-
-            modes: 0,
-            mouse_protocol_mode: MouseProtocolMode::default(),
-            mouse_protocol_encoding: MouseProtocolEncoding::default(),
-        }
-    }
-
-    /// Resizes the terminal.
-    pub fn set_size(&mut self, rows: u16, cols: u16) {
-        self.grid.set_size(crate::grid::Size { rows, cols });
-        self.alternate_grid
-            .set_size(crate::grid::Size { rows, cols });
-    }
-
-    /// Returns the current size of the terminal.
-    ///
-    /// The return value will be (rows, cols).
-    #[must_use]
-    pub fn size(&self) -> (u16, u16) {
-        let size = self.grid().size();
-        (size.rows, size.cols)
-    }
-
-    /// Scrolls to the given position in the scrollback.
-    ///
-    /// This position indicates the offset from the top of the screen, and
-    /// should be `0` to put the normal screen in view.
-    ///
-    /// This affects the return values of methods called on the screen: for
-    /// instance, `screen.cell(0, 0)` will return the top left corner of the
-    /// screen after taking the scrollback offset into account.
-    ///
-    /// The value given will be clamped to the actual size of the scrollback.
-    pub fn set_scrollback(&mut self, rows: usize) {
-        self.grid_mut().set_scrollback(rows);
-    }
-
-    /// Returns the current position in the scrollback.
-    ///
-    /// This position indicates the offset from the top of the screen, and is
-    /// `0` when the normal screen is in view.
-    #[must_use]
-    pub fn scrollback(&self) -> usize {
-        self.grid().scrollback()
-    }
-
-    /// Returns the text contents of the terminal.
-    ///
-    /// This will not include any formatting information, and will be in plain
-    /// text format.
-    #[must_use]
-    pub fn contents(&self) -> String {
-        let mut contents = String::new();
-        self.write_contents(&mut contents);
-        contents
-    }
-
-    fn write_contents(&self, contents: &mut String) {
-        self.grid().write_contents(contents);
-    }
-
-    /// Returns the text contents of the terminal by row, restricted to the
-    /// given subset of columns.
-    ///
-    /// This will not include any formatting information, and will be in plain
-    /// text format.
-    ///
-    /// Newlines will not be included.
-    pub fn rows(
-        &self,
-        start: u16,
-        width: u16,
-    ) -> impl Iterator<Item = String> + '_ {
-        self.grid().visible_rows().map(move |row| {
-            let mut contents = String::new();
-            row.write_contents(&mut contents, start, width, false);
-            contents
-        })
-    }
-
-    /// Returns the text contents of the terminal logically between two cells.
-    /// This will include the remainder of the starting row after `start_col`,
-    /// followed by the entire contents of the rows between `start_row` and
-    /// `end_row`, followed by the beginning of the `end_row` up until
-    /// `end_col`. This is useful for things like determining the contents of
-    /// a clipboard selection.
-    #[must_use]
-    pub fn contents_between(
-        &self,
-        start_row: u16,
-        start_col: u16,
-        end_row: u16,
-        end_col: u16,
-    ) -> String {
-        match start_row.cmp(&end_row) {
-            std::cmp::Ordering::Less => {
-                let (_, cols) = self.size();
-                let mut contents = String::new();
-                for (i, row) in self
-                    .grid()
-                    .visible_rows()
-                    .enumerate()
-                    .skip(usize::from(start_row))
-                    .take(usize::from(end_row) - usize::from(start_row) + 1)
-                {
-                    if i == usize::from(start_row) {
-                        row.write_contents(
-                            &mut contents,
-                            start_col,
-                            cols - start_col,
-                            false,
-                        );
-                        if !row.wrapped() {
-                            contents.push('\n');
-                        }
-                    } else if i == usize::from(end_row) {
-                        row.write_contents(&mut contents, 0, end_col, false);
-                    } else {
-                        row.write_contents(&mut contents, 0, cols, false);
-                        if !row.wrapped() {
-                            contents.push('\n');
-                        }
-                    }
-                }
-                contents
-            }
-            std::cmp::Ordering::Equal => {
-                if start_col < end_col {
-                    self.rows(start_col, end_col - start_col)
-                        .nth(usize::from(start_row))
-                        .unwrap_or_default()
-                } else {
-                    String::new()
-                }
-            }
-            std::cmp::Ordering::Greater => String::new(),
-        }
-    }
-
-    /// Return escape codes sufficient to reproduce the entire contents of the
-    /// current terminal state. This is a convenience wrapper around
-    /// [`contents_formatted`](Self::contents_formatted) and
-    /// [`input_mode_formatted`](Self::input_mode_formatted).
-    #[must_use]
-    pub fn state_formatted(&self) -> Vec<u8> {
-        let mut contents = vec![];
-        self.write_contents_formatted(&mut contents);
-        self.write_input_mode_formatted(&mut contents);
-        contents
-    }
-
-    /// Return escape codes sufficient to turn the terminal state of the
-    /// screen `prev` into the current terminal state. This is a convenience
-    /// wrapper around [`contents_diff`](Self::contents_diff) and
-    /// [`input_mode_diff`](Self::input_mode_diff).
-    #[must_use]
-    pub fn state_diff(&self, prev: &Self) -> Vec<u8> {
-        let mut contents = vec![];
-        self.write_contents_diff(&mut contents, prev);
-        self.write_input_mode_diff(&mut contents, prev);
-        contents
-    }
-
-    /// Returns the formatted visible contents of the terminal.
-    ///
-    /// Formatting information will be included inline as terminal escape
-    /// codes. The result will be suitable for feeding directly to a raw
-    /// terminal parser, and will result in the same visual output.
-    #[must_use]
-    pub fn contents_formatted(&self) -> Vec<u8> {
-        let mut contents = vec![];
-        self.write_contents_formatted(&mut contents);
-        contents
-    }
-
-    fn write_contents_formatted(&self, contents: &mut Vec<u8>) {
-        crate::term::HideCursor::new(self.hide_cursor()).write_buf(contents);
-        let prev_attrs = self.grid().write_contents_formatted(contents);
-        self.attrs.write_escape_code_diff(contents, &prev_attrs);
-    }
-
-    /// Returns the formatted visible contents of the terminal by row,
-    /// restricted to the given subset of columns.
-    ///
-    /// Formatting information will be included inline as terminal escape
-    /// codes. The result will be suitable for feeding directly to a raw
-    /// terminal parser, and will result in the same visual output.
-    ///
-    /// You are responsible for positioning the cursor before printing each
-    /// row, and the final cursor position after displaying each row is
-    /// unspecified.
-    // the unwraps in this method shouldn't be reachable
-    #[allow(clippy::missing_panics_doc)]
-    pub fn rows_formatted(
-        &self,
-        start: u16,
-        width: u16,
-    ) -> impl Iterator<Item = Vec<u8>> + '_ {
-        let mut wrapping = false;
-        self.grid().visible_rows().enumerate().map(move |(i, row)| {
-            // number of rows in a grid is stored in a u16 (see Size), so
-            // visible_rows can never return enough rows to overflow here
-            let i = i.try_into().unwrap();
-            let mut contents = vec![];
-            row.write_contents_formatted(
-                &mut contents,
-                start,
-                width,
-                i,
-                wrapping,
-                None,
-                None,
-            );
-            if start == 0 && width == self.grid.size().cols {
-                wrapping = row.wrapped();
-            }
-            contents
-        })
-    }
-
-    /// Returns a terminal byte stream sufficient to turn the visible contents
-    /// of the screen described by `prev` into the visible contents of the
-    /// screen described by `self`.
-    ///
-    /// The result of rendering `prev.contents_formatted()` followed by
-    /// `self.contents_diff(prev)` should be equivalent to the result of
-    /// rendering `self.contents_formatted()`. This is primarily useful when
-    /// you already have a terminal parser whose state is described by `prev`,
-    /// since the diff will likely require less memory and cause less
-    /// flickering than redrawing the entire screen contents.
-    #[must_use]
-    pub fn contents_diff(&self, prev: &Self) -> Vec<u8> {
-        let mut contents = vec![];
-        self.write_contents_diff(&mut contents, prev);
-        contents
-    }
-
-    fn write_contents_diff(&self, contents: &mut Vec<u8>, prev: &Self) {
-        if self.hide_cursor() != prev.hide_cursor() {
-            crate::term::HideCursor::new(self.hide_cursor())
-                .write_buf(contents);
-        }
-        let prev_attrs = self.grid().write_contents_diff(
-            contents,
-            prev.grid(),
-            prev.attrs,
-        );
-        self.attrs.write_escape_code_diff(contents, &prev_attrs);
-    }
-
-    /// Returns a sequence of terminal byte streams sufficient to turn the
-    /// visible contents of the subset of each row from `prev` (as described
-    /// by `start` and `width`) into the visible contents of the corresponding
-    /// row subset in `self`.
-    ///
-    /// You are responsible for positioning the cursor before printing each
-    /// row, and the final cursor position after displaying each row is
-    /// unspecified.
-    // the unwraps in this method shouldn't be reachable
-    #[allow(clippy::missing_panics_doc)]
-    pub fn rows_diff<'a>(
-        &'a self,
-        prev: &'a Self,
-        start: u16,
-        width: u16,
-    ) -> impl Iterator<Item = Vec<u8>> + 'a {
-        self.grid()
-            .visible_rows()
-            .zip(prev.grid().visible_rows())
-            .enumerate()
-            .map(move |(i, (row, prev_row))| {
-                // number of rows in a grid is stored in a u16 (see Size), so
-                // visible_rows can never return enough rows to overflow here
-                let i = i.try_into().unwrap();
-                let mut contents = vec![];
-                row.write_contents_diff(
-                    &mut contents,
-                    prev_row,
-                    start,
-                    width,
-                    i,
-                    false,
-                    false,
-                    crate::grid::Pos { row: i, col: start },
-                    crate::attrs::Attrs::default(),
-                );
-                contents
-            })
-    }
-
-    /// Returns terminal escape sequences sufficient to set the current
-    /// terminal's input modes.
-    ///
-    /// Supported modes are:
-    /// * application keypad
-    /// * application cursor
-    /// * bracketed paste
-    /// * xterm mouse support
-    #[must_use]
-    pub fn input_mode_formatted(&self) -> Vec<u8> {
-        let mut contents = vec![];
-        self.write_input_mode_formatted(&mut contents);
-        contents
-    }
-
-    fn write_input_mode_formatted(&self, contents: &mut Vec<u8>) {
-        crate::term::ApplicationKeypad::new(
-            self.mode(MODE_APPLICATION_KEYPAD),
-        )
-        .write_buf(contents);
-        crate::term::ApplicationCursor::new(
-            self.mode(MODE_APPLICATION_CURSOR),
-        )
-        .write_buf(contents);
-        crate::term::BracketedPaste::new(self.mode(MODE_BRACKETED_PASTE))
-            .write_buf(contents);
-        crate::term::MouseProtocolMode::new(
-            self.mouse_protocol_mode,
-            MouseProtocolMode::None,
-        )
-        .write_buf(contents);
-        crate::term::MouseProtocolEncoding::new(
-            self.mouse_protocol_encoding,
-            MouseProtocolEncoding::Default,
-        )
-        .write_buf(contents);
-    }
-
-    /// Returns terminal escape sequences sufficient to change the previous
-    /// terminal's input modes to the input modes enabled in the current
-    /// terminal.
-    #[must_use]
-    pub fn input_mode_diff(&self, prev: &Self) -> Vec<u8> {
-        let mut contents = vec![];
-        self.write_input_mode_diff(&mut contents, prev);
-        contents
-    }
-
-    fn write_input_mode_diff(&self, contents: &mut Vec<u8>, prev: &Self) {
-        if self.mode(MODE_APPLICATION_KEYPAD)
-            != prev.mode(MODE_APPLICATION_KEYPAD)
-        {
-            crate::term::ApplicationKeypad::new(
-                self.mode(MODE_APPLICATION_KEYPAD),
-            )
-            .write_buf(contents);
-        }
-        if self.mode(MODE_APPLICATION_CURSOR)
-            != prev.mode(MODE_APPLICATION_CURSOR)
-        {
-            crate::term::ApplicationCursor::new(
-                self.mode(MODE_APPLICATION_CURSOR),
-            )
-            .write_buf(contents);
-        }
-        if self.mode(MODE_BRACKETED_PASTE) != prev.mode(MODE_BRACKETED_PASTE)
-        {
-            crate::term::BracketedPaste::new(self.mode(MODE_BRACKETED_PASTE))
-                .write_buf(contents);
-        }
-        crate::term::MouseProtocolMode::new(
-            self.mouse_protocol_mode,
-            prev.mouse_protocol_mode,
-        )
-        .write_buf(contents);
-        crate::term::MouseProtocolEncoding::new(
-            self.mouse_protocol_encoding,
-            prev.mouse_protocol_encoding,
-        )
-        .write_buf(contents);
-    }
-
-    /// Returns terminal escape sequences sufficient to set the current
-    /// terminal's drawing attributes.
-    ///
-    /// Supported drawing attributes are:
-    /// * fgcolor
-    /// * bgcolor
-    /// * bold
-    /// * dim
-    /// * italic
-    /// * underline
-    /// * inverse
-    ///
-    /// This is not typically necessary, since
-    /// [`contents_formatted`](Self::contents_formatted) will leave
-    /// the current active drawing attributes in the correct state, but this
-    /// can be useful in the case of drawing additional things on top of a
-    /// terminal output, since you will need to restore the terminal state
-    /// without the terminal contents necessarily being the same.
-    #[must_use]
-    pub fn attributes_formatted(&self) -> Vec<u8> {
-        let mut contents = vec![];
-        self.write_attributes_formatted(&mut contents);
-        contents
-    }
-
-    fn write_attributes_formatted(&self, contents: &mut Vec<u8>) {
-        crate::term::ClearAttrs.write_buf(contents);
-        self.attrs.write_escape_code_diff(
-            contents,
-            &crate::attrs::Attrs::default(),
-        );
-    }
-
-    /// Returns the current cursor position of the terminal.
-    ///
-    /// The return value will be (row, col).
-    #[must_use]
-    pub fn cursor_position(&self) -> (u16, u16) {
-        let pos = self.grid().pos();
-        (pos.row, pos.col)
-    }
-
-    /// Returns terminal escape sequences sufficient to set the current
-    /// cursor state of the terminal.
-    ///
-    /// This is not typically necessary, since
-    /// [`contents_formatted`](Self::contents_formatted) will leave
-    /// the cursor in the correct state, but this can be useful in the case of
-    /// drawing additional things on top of a terminal output, since you will
-    /// need to restore the terminal state without the terminal contents
-    /// necessarily being the same.
-    ///
-    /// Note that the bytes returned by this function may alter the active
-    /// drawing attributes, because it may require redrawing existing cells in
-    /// order to position the cursor correctly (for instance, in the case
-    /// where the cursor is past the end of a row). Therefore, you should
-    /// ensure to reset the active drawing attributes if necessary after
-    /// processing this data, for instance by using
-    /// [`attributes_formatted`](Self::attributes_formatted).
-    #[must_use]
-    pub fn cursor_state_formatted(&self) -> Vec<u8> {
-        let mut contents = vec![];
-        self.write_cursor_state_formatted(&mut contents);
-        contents
-    }
-
-    fn write_cursor_state_formatted(&self, contents: &mut Vec<u8>) {
-        crate::term::HideCursor::new(self.hide_cursor()).write_buf(contents);
-        self.grid()
-            .write_cursor_position_formatted(contents, None, None);
-
-        // we don't just call write_attributes_formatted here, because that
-        // would still be confusing - consider the case where the user sets
-        // their own unrelated drawing attributes (on a different parser
-        // instance) and then calls cursor_state_formatted. just documenting
-        // it and letting the user handle it on their own is more
-        // straightforward.
-    }
-
-    /// Returns the [`Cell`](crate::Cell) object at the given location in the
-    /// terminal, if it exists.
-    #[must_use]
-    pub fn cell(&self, row: u16, col: u16) -> Option<&crate::Cell> {
-        self.grid().visible_cell(crate::grid::Pos { row, col })
-    }
-
-    /// Returns whether the text in row `row` should wrap to the next line.
-    #[must_use]
-    pub fn row_wrapped(&self, row: u16) -> bool {
-        self.grid()
-            .visible_row(row)
-            .is_some_and(crate::row::Row::wrapped)
-    }
-
-    /// Returns whether the alternate screen is currently in use.
-    #[must_use]
-    pub fn alternate_screen(&self) -> bool {
-        self.mode(MODE_ALTERNATE_SCREEN)
-    }
-
-    /// Returns whether the terminal should be in application keypad mode.
-    #[must_use]
-    pub fn application_keypad(&self) -> bool {
-        self.mode(MODE_APPLICATION_KEYPAD)
-    }
-
-    /// Returns whether the terminal should be in application cursor mode.
-    #[must_use]
-    pub fn application_cursor(&self) -> bool {
-        self.mode(MODE_APPLICATION_CURSOR)
-    }
-
-    /// Returns whether the terminal should be in hide cursor mode.
-    #[must_use]
-    pub fn hide_cursor(&self) -> bool {
-        self.mode(MODE_HIDE_CURSOR)
-    }
-
-    /// Returns whether the terminal should be in bracketed paste mode.
-    #[must_use]
-    pub fn bracketed_paste(&self) -> bool {
-        self.mode(MODE_BRACKETED_PASTE)
-    }
-
-    /// Returns the currently active [`MouseProtocolMode`].
-    #[must_use]
-    pub fn mouse_protocol_mode(&self) -> MouseProtocolMode {
-        self.mouse_protocol_mode
-    }
-
-    /// Returns the currently active [`MouseProtocolEncoding`].
-    #[must_use]
-    pub fn mouse_protocol_encoding(&self) -> MouseProtocolEncoding {
-        self.mouse_protocol_encoding
-    }
-
-    /// Returns the currently active foreground color.
-    #[must_use]
-    pub fn fgcolor(&self) -> crate::Color {
-        self.attrs.fgcolor
-    }
-
-    /// Returns the currently active background color.
-    #[must_use]
-    pub fn bgcolor(&self) -> crate::Color {
-        self.attrs.bgcolor
-    }
-
-    /// Returns whether newly drawn text should be rendered with the bold text
-    /// attribute.
-    #[must_use]
-    pub fn bold(&self) -> bool {
-        self.attrs.bold()
-    }
-
-    /// Returns whether newly drawn text should be rendered with the dim text
-    /// attribute.
-    #[must_use]
-    pub fn dim(&self) -> bool {
-        self.attrs.dim()
-    }
-
-    /// Returns whether newly drawn text should be rendered with the italic
-    /// text attribute.
-    #[must_use]
-    pub fn italic(&self) -> bool {
-        self.attrs.italic()
-    }
-
-    /// Returns whether newly drawn text should be rendered with the
-    /// underlined text attribute.
-    #[must_use]
-    pub fn underline(&self) -> bool {
-        self.attrs.underline()
-    }
-
-    /// Returns whether newly drawn text should be rendered with the inverse
-    /// text attribute.
-    #[must_use]
-    pub fn inverse(&self) -> bool {
-        self.attrs.inverse()
-    }
-
-    pub(crate) fn grid(&self) -> &crate::grid::Grid {
-        if self.mode(MODE_ALTERNATE_SCREEN) {
-            &self.alternate_grid
-        } else {
-            &self.grid
-        }
-    }
-
-    fn grid_mut(&mut self) -> &mut crate::grid::Grid {
-        if self.mode(MODE_ALTERNATE_SCREEN) {
-            &mut self.alternate_grid
-        } else {
-            &mut self.grid
-        }
-    }
-
-    fn enter_alternate_grid(&mut self) {
-        self.grid_mut().set_scrollback(0);
-        self.set_mode(MODE_ALTERNATE_SCREEN);
-        self.alternate_grid.allocate_rows();
-    }
-
-    fn exit_alternate_grid(&mut self) {
-        self.clear_mode(MODE_ALTERNATE_SCREEN);
-    }
-
-    fn save_cursor(&mut self) {
-        self.grid_mut().save_cursor();
-        self.saved_attrs = self.attrs;
-    }
-
-    fn restore_cursor(&mut self) {
-        self.grid_mut().restore_cursor();
-        self.attrs = self.saved_attrs;
-    }
-
-    fn set_mode(&mut self, mode: u8) {
-        self.modes |= mode;
-    }
-
-    fn clear_mode(&mut self, mode: u8) {
-        self.modes &= !mode;
-    }
-
-    fn mode(&self, mode: u8) -> bool {
-        self.modes & mode != 0
-    }
-
-    fn set_mouse_mode(&mut self, mode: MouseProtocolMode) {
-        self.mouse_protocol_mode = mode;
-    }
-
-    fn clear_mouse_mode(&mut self, mode: MouseProtocolMode) {
-        if self.mouse_protocol_mode == mode {
-            self.mouse_protocol_mode = MouseProtocolMode::default();
-        }
-    }
-
-    fn set_mouse_encoding(&mut self, encoding: MouseProtocolEncoding) {
-        self.mouse_protocol_encoding = encoding;
-    }
-
-    fn clear_mouse_encoding(&mut self, encoding: MouseProtocolEncoding) {
-        if self.mouse_protocol_encoding == encoding {
-            self.mouse_protocol_encoding = MouseProtocolEncoding::default();
-        }
-    }
-}
-
-impl Screen {
-    pub(crate) fn text(&mut self, c: char) {
-        let pos = self.grid().pos();
-        let size = self.grid().size();
-        let attrs = self.attrs;
-
-        let width = c.width();
-        if width.is_none() && (u32::from(c)) < 256 {
-            // don't even try to draw control characters
-            return;
-        }
-        let width = width
-            .unwrap_or(1)
-            .try_into()
-            // width() can only return 0, 1, or 2
-            .unwrap();
-
-        // it doesn't make any sense to wrap if the last column in a row
-        // didn't already have contents. don't try to handle the case where a
-        // character wraps because there was only one column left in the
-        // previous row - literally everything handles this case differently,
-        // and this is tmux behavior (and also the simplest). i'm open to
-        // reconsidering this behavior, but only with a really good reason
-        // (xterm handles this by introducing the concept of triple width
-        // cells, which i really don't want to do).
-        let mut wrap = false;
-        if pos.col > size.cols - width {
-            let last_cell = self
-                .grid()
-                .drawing_cell(crate::grid::Pos {
-                    row: pos.row,
-                    col: size.cols - 1,
-                })
-                // pos.row is valid, since it comes directly from
-                // self.grid().pos() which we assume to always have a valid
-                // row value. size.cols - 1 is also always a valid column.
-                .unwrap();
-            if last_cell.has_contents() || last_cell.is_wide_continuation() {
-                wrap = true;
-            }
-        }
-        self.grid_mut().col_wrap(width, wrap);
-        let pos = self.grid().pos();
-
-        if width == 0 {
-            if pos.col > 0 {
-                let mut prev_cell = self
-                    .grid_mut()
-                    .drawing_cell_mut(crate::grid::Pos {
-                        row: pos.row,
-                        col: pos.col - 1,
-                    })
-                    // pos.row is valid, since it comes directly from
-                    // self.grid().pos() which we assume to always have a
-                    // valid row value. pos.col - 1 is valid because we just
-                    // checked for pos.col > 0.
-                    .unwrap();
-                if prev_cell.is_wide_continuation() {
-                    prev_cell = self
-                        .grid_mut()
-                        .drawing_cell_mut(crate::grid::Pos {
-                            row: pos.row,
-                            col: pos.col - 2,
-                        })
-                        // pos.row is valid, since it comes directly from
-                        // self.grid().pos() which we assume to always have a
-                        // valid row value. we know pos.col - 2 is valid
-                        // because the cell at pos.col - 1 is a wide
-                        // continuation character, which means there must be
-                        // the first half of the wide character before it.
-                        .unwrap();
-                }
-                prev_cell.append(c);
-            } else if pos.row > 0 {
-                let prev_row = self
-                    .grid()
-                    .drawing_row(pos.row - 1)
-                    // pos.row is valid, since it comes directly from
-                    // self.grid().pos() which we assume to always have a
-                    // valid row value. pos.row - 1 is valid because we just
-                    // checked for pos.row > 0.
-                    .unwrap();
-                if prev_row.wrapped() {
-                    let mut prev_cell = self
-                        .grid_mut()
-                        .drawing_cell_mut(crate::grid::Pos {
-                            row: pos.row - 1,
-                            col: size.cols - 1,
-                        })
-                        // pos.row is valid, since it comes directly from
-                        // self.grid().pos() which we assume to always have a
-                        // valid row value. pos.row - 1 is valid because we
-                        // just checked for pos.row > 0. col of size.cols - 1
-                        // is always valid.
-                        .unwrap();
-                    if prev_cell.is_wide_continuation() {
-                        prev_cell = self
-                            .grid_mut()
-                            .drawing_cell_mut(crate::grid::Pos {
-                                row: pos.row - 1,
-                                col: size.cols - 2,
-                            })
-                            // pos.row is valid, since it comes directly from
-                            // self.grid().pos() which we assume to always
-                            // have a valid row value. pos.row - 1 is valid
-                            // because we just checked for pos.row > 0. col of
-                            // size.cols - 2 is valid because the cell at
-                            // size.cols - 1 is a wide continuation character,
-                            // so it must have the first half of the wide
-                            // character before it.
-                            .unwrap();
-                    }
-                    prev_cell.append(c);
-                }
-            }
-        } else {
-            if self
-                .grid()
-                .drawing_cell(pos)
-                // pos.row is valid because we assume self.grid().pos() to
-                // always have a valid row value. pos.col is valid because we
-                // called col_wrap() immediately before this, which ensures
-                // that self.grid().pos().col has a valid value.
-                .unwrap()
-                .is_wide_continuation()
-            {
-                let prev_cell = self
-                    .grid_mut()
-                    .drawing_cell_mut(crate::grid::Pos {
-                        row: pos.row,
-                        col: pos.col - 1,
-                    })
-                    // pos.row is valid because we assume self.grid().pos() to
-                    // always have a valid row value. pos.col is valid because
-                    // we called col_wrap() immediately before this, which
-                    // ensures that self.grid().pos().col has a valid value.
-                    // pos.col - 1 is valid because the cell at pos.col is a
-                    // wide continuation character, so it must have the first
-                    // half of the wide character before it.
-                    .unwrap();
-                prev_cell.clear(attrs);
-            }
-
-            if self
-                .grid()
-                .drawing_cell(pos)
-                // pos.row is valid because we assume self.grid().pos() to
-                // always have a valid row value. pos.col is valid because we
-                // called col_wrap() immediately before this, which ensures
-                // that self.grid().pos().col has a valid value.
-                .unwrap()
-                .is_wide()
-            {
-                let next_cell = self
-                    .grid_mut()
-                    .drawing_cell_mut(crate::grid::Pos {
-                        row: pos.row,
-                        col: pos.col + 1,
-                    })
-                    // pos.row is valid because we assume self.grid().pos() to
-                    // always have a valid row value. pos.col is valid because
-                    // we called col_wrap() immediately before this, which
-                    // ensures that self.grid().pos().col has a valid value.
-                    // pos.col + 1 is valid because the cell at pos.col is a
-                    // wide character, so it must have the second half of the
-                    // wide character after it.
-                    .unwrap();
-                next_cell.set(' ', attrs);
-            }
-
-            let cell = self
-                .grid_mut()
-                .drawing_cell_mut(pos)
-                // pos.row is valid because we assume self.grid().pos() to
-                // always have a valid row value. pos.col is valid because we
-                // called col_wrap() immediately before this, which ensures
-                // that self.grid().pos().col has a valid value.
-                .unwrap();
-            cell.set(c, attrs);
-            self.grid_mut().col_inc(1);
-            if width > 1 {
-                let pos = self.grid().pos();
-                if self
-                    .grid()
-                    .drawing_cell(pos)
-                    // pos.row is valid because we assume self.grid().pos() to
-                    // always have a valid row value. pos.col is valid because
-                    // we called col_wrap() earlier, which ensures that
-                    // self.grid().pos().col has a valid value. this is true
-                    // even though we just called col_inc, because this branch
-                    // only happens if width > 1, and col_wrap takes width
-                    // into account.
-                    .unwrap()
-                    .is_wide()
-                {
-                    let next_next_pos = crate::grid::Pos {
-                        row: pos.row,
-                        col: pos.col + 1,
-                    };
-                    let next_next_cell = self
-                        .grid_mut()
-                        .drawing_cell_mut(next_next_pos)
-                        // pos.row is valid because we assume
-                        // self.grid().pos() to always have a valid row value.
-                        // pos.col is valid because we called col_wrap()
-                        // earlier, which ensures that self.grid().pos().col
-                        // has a valid value. this is true even though we just
-                        // called col_inc, because this branch only happens if
-                        // width > 1, and col_wrap takes width into account.
-                        // pos.col + 1 is valid because the cell at pos.col is
-                        // wide, and so it must have the second half of the
-                        // wide character after it.
-                        .unwrap();
-                    next_next_cell.clear(attrs);
-                    if next_next_pos.col == size.cols - 1 {
-                        self.grid_mut()
-                            .drawing_row_mut(pos.row)
-                            // we assume self.grid().pos().row is always valid
-                            .unwrap()
-                            .wrap(false);
-                    }
-                }
-                let next_cell = self
-                    .grid_mut()
-                    .drawing_cell_mut(pos)
-                    // pos.row is valid because we assume self.grid().pos() to
-                    // always have a valid row value. pos.col is valid because
-                    // we called col_wrap() earlier, which ensures that
-                    // self.grid().pos().col has a valid value. this is true
-                    // even though we just called col_inc, because this branch
-                    // only happens if width > 1, and col_wrap takes width
-                    // into account.
-                    .unwrap();
-                next_cell.clear(crate::attrs::Attrs::default());
-                next_cell.set_wide_continuation(true);
-                self.grid_mut().col_inc(1);
-            }
-        }
-    }
-
-    // control codes
-
-    pub(crate) fn bs(&mut self) {
-        self.grid_mut().col_dec(1);
-    }
-
-    pub(crate) fn tab(&mut self) {
-        self.grid_mut().col_tab();
-    }
-
-    pub(crate) fn lf(&mut self) {
-        self.grid_mut().row_inc_scroll(1);
-    }
-
-    pub(crate) fn vt(&mut self) {
-        self.lf();
-    }
-
-    pub(crate) fn ff(&mut self) {
-        self.lf();
-    }
-
-    pub(crate) fn cr(&mut self) {
-        self.grid_mut().col_set(0);
-    }
-
-    // escape codes
-
-    // ESC 7
-    pub(crate) fn decsc(&mut self) {
-        self.save_cursor();
-    }
-
-    // ESC 8
-    pub(crate) fn decrc(&mut self) {
-        self.restore_cursor();
-    }
-
-    // ESC =
-    pub(crate) fn deckpam(&mut self) {
-        self.set_mode(MODE_APPLICATION_KEYPAD);
-    }
-
-    // ESC >
-    pub(crate) fn deckpnm(&mut self) {
-        self.clear_mode(MODE_APPLICATION_KEYPAD);
-    }
-
-    // ESC M
-    pub(crate) fn ri(&mut self) {
-        self.grid_mut().row_dec_scroll(1);
-    }
-
-    // ESC c
-    pub(crate) fn ris(&mut self) {
-        *self = Self::new(self.grid.size(), self.grid.scrollback_len());
-    }
-
-    // csi codes
-
-    // CSI @
-    pub(crate) fn ich(&mut self, count: u16) {
-        self.grid_mut().insert_cells(count);
-    }
-
-    // CSI A
-    pub(crate) fn cuu(&mut self, offset: u16) {
-        self.grid_mut().row_dec_clamp(offset);
-    }
-
-    // CSI B
-    pub(crate) fn cud(&mut self, offset: u16) {
-        self.grid_mut().row_inc_clamp(offset);
-    }
-
-    // CSI C
-    pub(crate) fn cuf(&mut self, offset: u16) {
-        self.grid_mut().col_inc_clamp(offset);
-    }
-
-    // CSI D
-    pub(crate) fn cub(&mut self, offset: u16) {
-        self.grid_mut().col_dec(offset);
-    }
-
-    // CSI E
-    pub(crate) fn cnl(&mut self, offset: u16) {
-        self.grid_mut().col_set(0);
-        self.grid_mut().row_inc_clamp(offset);
-    }
-
-    // CSI F
-    pub(crate) fn cpl(&mut self, offset: u16) {
-        self.grid_mut().col_set(0);
-        self.grid_mut().row_dec_clamp(offset);
-    }
-
-    // CSI G
-    pub(crate) fn cha(&mut self, col: u16) {
-        self.grid_mut().col_set(col - 1);
-    }
-
-    // CSI H
-    pub(crate) fn cup(&mut self, (row, col): (u16, u16)) {
-        self.grid_mut().set_pos(crate::grid::Pos {
-            row: row - 1,
-            col: col - 1,
-        });
-    }
-
-    // CSI J
-    pub(crate) fn ed(
-        &mut self,
-        mode: u16,
-        mut unhandled: impl FnMut(&mut Self),
-    ) {
-        let attrs = self.attrs;
-        match mode {
-            0 => self.grid_mut().erase_all_forward(attrs),
-            1 => self.grid_mut().erase_all_backward(attrs),
-            2 => self.grid_mut().erase_all(attrs),
-            _ => unhandled(self),
-        }
-    }
-
-    // CSI ? J
-    pub(crate) fn decsed(
-        &mut self,
-        mode: u16,
-        unhandled: impl FnMut(&mut Self),
-    ) {
-        self.ed(mode, unhandled);
-    }
-
-    // CSI K
-    pub(crate) fn el(
-        &mut self,
-        mode: u16,
-        mut unhandled: impl FnMut(&mut Self),
-    ) {
-        let attrs = self.attrs;
-        match mode {
-            0 => self.grid_mut().erase_row_forward(attrs),
-            1 => self.grid_mut().erase_row_backward(attrs),
-            2 => self.grid_mut().erase_row(attrs),
-            _ => unhandled(self),
-        }
-    }
-
-    // CSI ? K
-    pub(crate) fn decsel(
-        &mut self,
-        mode: u16,
-        unhandled: impl FnMut(&mut Self),
-    ) {
-        self.el(mode, unhandled);
-    }
-
-    // CSI L
-    pub(crate) fn il(&mut self, count: u16) {
-        self.grid_mut().insert_lines(count);
-    }
-
-    // CSI M
-    pub(crate) fn dl(&mut self, count: u16) {
-        self.grid_mut().delete_lines(count);
-    }
-
-    // CSI P
-    pub(crate) fn dch(&mut self, count: u16) {
-        self.grid_mut().delete_cells(count);
-    }
-
-    // CSI S
-    pub(crate) fn su(&mut self, count: u16) {
-        self.grid_mut().scroll_up(count);
-    }
-
-    // CSI T
-    pub(crate) fn sd(&mut self, count: u16) {
-        self.grid_mut().scroll_down(count);
-    }
-
-    // CSI X
-    pub(crate) fn ech(&mut self, count: u16) {
-        let attrs = self.attrs;
-        self.grid_mut().erase_cells(count, attrs);
-    }
-
-    // CSI d
-    pub(crate) fn vpa(&mut self, row: u16) {
-        self.grid_mut().row_set(row - 1);
-    }
-
-    // CSI ? h
-    pub(crate) fn decset(
-        &mut self,
-        params: &vte::Params,
-        mut unhandled: impl FnMut(&mut Self),
-    ) {
-        for param in params {
-            match param {
-                [1] => self.set_mode(MODE_APPLICATION_CURSOR),
-                [6] => self.grid_mut().set_origin_mode(true),
-                [9] => self.set_mouse_mode(MouseProtocolMode::Press),
-                [25] => self.clear_mode(MODE_HIDE_CURSOR),
-                [47] => self.enter_alternate_grid(),
-                [1000] => {
-                    self.set_mouse_mode(MouseProtocolMode::PressRelease);
-                }
-                [1002] => {
-                    self.set_mouse_mode(MouseProtocolMode::ButtonMotion);
-                }
-                [1003] => self.set_mouse_mode(MouseProtocolMode::AnyMotion),
-                [1005] => {
-                    self.set_mouse_encoding(MouseProtocolEncoding::Utf8);
-                }
-                [1006] => {
-                    self.set_mouse_encoding(MouseProtocolEncoding::Sgr);
-                }
-                [1049] => {
-                    self.decsc();
-                    self.alternate_grid.clear();
-                    self.enter_alternate_grid();
-                }
-                [2004] => self.set_mode(MODE_BRACKETED_PASTE),
-                _ => unhandled(self),
-            }
-        }
-    }
-
-    // CSI ? l
-    pub(crate) fn decrst(
-        &mut self,
-        params: &vte::Params,
-        mut unhandled: impl FnMut(&mut Self),
-    ) {
-        for param in params {
-            match param {
-                [1] => self.clear_mode(MODE_APPLICATION_CURSOR),
-                [6] => self.grid_mut().set_origin_mode(false),
-                [9] => self.clear_mouse_mode(MouseProtocolMode::Press),
-                [25] => self.set_mode(MODE_HIDE_CURSOR),
-                [47] => {
-                    self.exit_alternate_grid();
-                }
-                [1000] => {
-                    self.clear_mouse_mode(MouseProtocolMode::PressRelease);
-                }
-                [1002] => {
-                    self.clear_mouse_mode(MouseProtocolMode::ButtonMotion);
-                }
-                [1003] => {
-                    self.clear_mouse_mode(MouseProtocolMode::AnyMotion);
-                }
-                [1005] => {
-                    self.clear_mouse_encoding(MouseProtocolEncoding::Utf8);
-                }
-                [1006] => {
-                    self.clear_mouse_encoding(MouseProtocolEncoding::Sgr);
-                }
-                [1049] => {
-                    self.exit_alternate_grid();
-                    self.decrc();
-                }
-                [2004] => self.clear_mode(MODE_BRACKETED_PASTE),
-                _ => unhandled(self),
-            }
-        }
-    }
-
-    // CSI m
-    pub(crate) fn sgr(
-        &mut self,
-        params: &vte::Params,
-        mut unhandled: impl FnMut(&mut Self),
-    ) {
-        // XXX really i want to just be able to pass in a default Params
-        // instance with a 0 in it, but vte doesn't allow creating new Params
-        // instances
-        if params.is_empty() {
-            self.attrs = crate::attrs::Attrs::default();
-            return;
-        }
-
-        let mut iter = params.iter();
-
-        macro_rules! next_param {
-            () => {
-                match iter.next() {
-                    Some(n) => n,
-                    _ => return,
-                }
-            };
-        }
-
-        macro_rules! to_u8 {
-            ($n:expr) => {
-                if let Some(n) = u16_to_u8($n) {
-                    n
-                } else {
-                    return;
-                }
-            };
-        }
-
-        macro_rules! next_param_u8 {
-            () => {
-                if let &[n] = next_param!() {
-                    to_u8!(n)
-                } else {
-                    return;
-                }
-            };
-        }
-
-        loop {
-            match next_param!() {
-                [0] => self.attrs = crate::attrs::Attrs::default(),
-                [1] => self.attrs.set_bold(),
-                [2] => self.attrs.set_dim(),
-                [3] => self.attrs.set_italic(true),
-                [4] => self.attrs.set_underline(true),
-                [7] => self.attrs.set_inverse(true),
-                [22] => self.attrs.set_normal_intensity(),
-                [23] => self.attrs.set_italic(false),
-                [24] => self.attrs.set_underline(false),
-                [27] => self.attrs.set_inverse(false),
-                [n] if (30..=37).contains(n) => {
-                    self.attrs.fgcolor = crate::Color::Idx(to_u8!(*n) - 30);
-                }
-                [38, 2, r, g, b] => {
-                    self.attrs.fgcolor =
-                        crate::Color::Rgb(to_u8!(*r), to_u8!(*g), to_u8!(*b));
-                }
-                [38, 5, i] => {
-                    self.attrs.fgcolor = crate::Color::Idx(to_u8!(*i));
-                }
-                [38] => match next_param!() {
-                    [2] => {
-                        let r = next_param_u8!();
-                        let g = next_param_u8!();
-                        let b = next_param_u8!();
-                        self.attrs.fgcolor = crate::Color::Rgb(r, g, b);
-                    }
-                    [5] => {
-                        self.attrs.fgcolor =
-                            crate::Color::Idx(next_param_u8!());
-                    }
-                    _ => {
-                        unhandled(self);
-                        return;
-                    }
-                },
-                [39] => {
-                    self.attrs.fgcolor = crate::Color::Default;
-                }
-                [n] if (40..=47).contains(n) => {
-                    self.attrs.bgcolor = crate::Color::Idx(to_u8!(*n) - 40);
-                }
-                [48, 2, r, g, b] => {
-                    self.attrs.bgcolor =
-                        crate::Color::Rgb(to_u8!(*r), to_u8!(*g), to_u8!(*b));
-                }
-                [48, 5, i] => {
-                    self.attrs.bgcolor = crate::Color::Idx(to_u8!(*i));
-                }
-                [48] => match next_param!() {
-                    [2] => {
-                        let r = next_param_u8!();
-                        let g = next_param_u8!();
-                        let b = next_param_u8!();
-                        self.attrs.bgcolor = crate::Color::Rgb(r, g, b);
-                    }
-                    [5] => {
-                        self.attrs.bgcolor =
-                            crate::Color::Idx(next_param_u8!());
-                    }
-                    _ => {
-                        unhandled(self);
-                        return;
-                    }
-                },
-                [49] => {
-                    self.attrs.bgcolor = crate::Color::Default;
-                }
-                [n] if (90..=97).contains(n) => {
-                    self.attrs.fgcolor = crate::Color::Idx(to_u8!(*n) - 82);
-                }
-                [n] if (100..=107).contains(n) => {
-                    self.attrs.bgcolor = crate::Color::Idx(to_u8!(*n) - 92);
-                }
-                _ => unhandled(self),
-            }
-        }
-    }
-
-    // CSI r
-    pub(crate) fn decstbm(&mut self, (top, bottom): (u16, u16)) {
-        self.grid_mut().set_scroll_region(top - 1, bottom - 1);
-    }
-}
-
-fn u16_to_u8(i: u16) -> Option<u8> {
-    if i > u16::from(u8::MAX) {
-        None
-    } else {
-        // safe because we just ensured that the value fits in a u8
-        Some(i.try_into().unwrap())
-    }
-}
diff --git a/vendor/vt100/src/term.rs b/vendor/vt100/src/term.rs
deleted file mode 100644
index b6b898c6..00000000
--- a/vendor/vt100/src/term.rs
+++ /dev/null
@@ -1,551 +0,0 @@
-// TODO: read all of this from terminfo
-
-pub trait BufWrite {
-    fn write_buf(&self, buf: &mut Vec<u8>);
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct ClearScreen;
-
-impl BufWrite for ClearScreen {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        buf.extend_from_slice(b"\x1b[H\x1b[J");
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct ClearRowForward;
-
-impl BufWrite for ClearRowForward {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        buf.extend_from_slice(b"\x1b[K");
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct Crlf;
-
-impl BufWrite for Crlf {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        buf.extend_from_slice(b"\r\n");
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct Backspace;
-
-impl BufWrite for Backspace {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        buf.extend_from_slice(b"\x08");
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct SaveCursor;
-
-impl BufWrite for SaveCursor {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        buf.extend_from_slice(b"\x1b7");
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct RestoreCursor;
-
-impl BufWrite for RestoreCursor {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        buf.extend_from_slice(b"\x1b8");
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct MoveTo {
-    row: u16,
-    col: u16,
-}
-
-impl MoveTo {
-    pub fn new(pos: crate::grid::Pos) -> Self {
-        Self {
-            row: pos.row,
-            col: pos.col,
-        }
-    }
-}
-
-impl BufWrite for MoveTo {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        if self.row == 0 && self.col == 0 {
-            buf.extend_from_slice(b"\x1b[H");
-        } else {
-            buf.extend_from_slice(b"\x1b[");
-            extend_itoa(buf, self.row + 1);
-            buf.push(b';');
-            extend_itoa(buf, self.col + 1);
-            buf.push(b'H');
-        }
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct ClearAttrs;
-
-impl BufWrite for ClearAttrs {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        buf.extend_from_slice(b"\x1b[m");
-    }
-}
-
-#[derive(Debug, Clone, Copy)]
-pub enum Intensity {
-    Normal,
-    Bold,
-    Dim,
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct Attrs {
-    fgcolor: Option<crate::Color>,
-    bgcolor: Option<crate::Color>,
-    intensity: Option<Intensity>,
-    italic: Option<bool>,
-    underline: Option<bool>,
-    inverse: Option<bool>,
-}
-
-impl Attrs {
-    pub fn fgcolor(mut self, fgcolor: crate::Color) -> Self {
-        self.fgcolor = Some(fgcolor);
-        self
-    }
-
-    pub fn bgcolor(mut self, bgcolor: crate::Color) -> Self {
-        self.bgcolor = Some(bgcolor);
-        self
-    }
-
-    pub fn intensity(mut self, intensity: Intensity) -> Self {
-        self.intensity = Some(intensity);
-        self
-    }
-
-    pub fn italic(mut self, italic: bool) -> Self {
-        self.italic = Some(italic);
-        self
-    }
-
-    pub fn underline(mut self, underline: bool) -> Self {
-        self.underline = Some(underline);
-        self
-    }
-
-    pub fn inverse(mut self, inverse: bool) -> Self {
-        self.inverse = Some(inverse);
-        self
-    }
-}
-
-impl BufWrite for Attrs {
-    #[allow(unused_assignments)]
-    #[allow(clippy::branches_sharing_code)]
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        if self.fgcolor.is_none()
-            && self.bgcolor.is_none()
-            && self.intensity.is_none()
-            && self.italic.is_none()
-            && self.underline.is_none()
-            && self.inverse.is_none()
-        {
-            return;
-        }
-
-        buf.extend_from_slice(b"\x1b[");
-        let mut first = true;
-
-        macro_rules! write_param {
-            ($i:expr) => {{
-                if first {
-                    first = false;
-                } else {
-                    buf.push(b';');
-                }
-                extend_itoa(buf, $i);
-            }};
-        }
-
-        if let Some(fgcolor) = self.fgcolor {
-            match fgcolor {
-                crate::Color::Default => {
-                    write_param!(39);
-                }
-                crate::Color::Idx(i) => {
-                    if i < 8 {
-                        write_param!(i + 30);
-                    } else if i < 16 {
-                        write_param!(i + 82);
-                    } else {
-                        write_param!(38);
-                        write_param!(5);
-                        write_param!(i);
-                    }
-                }
-                crate::Color::Rgb(r, g, b) => {
-                    write_param!(38);
-                    write_param!(2);
-                    write_param!(r);
-                    write_param!(g);
-                    write_param!(b);
-                }
-            }
-        }
-
-        if let Some(bgcolor) = self.bgcolor {
-            match bgcolor {
-                crate::Color::Default => {
-                    write_param!(49);
-                }
-                crate::Color::Idx(i) => {
-                    if i < 8 {
-                        write_param!(i + 40);
-                    } else if i < 16 {
-                        write_param!(i + 92);
-                    } else {
-                        write_param!(48);
-                        write_param!(5);
-                        write_param!(i);
-                    }
-                }
-                crate::Color::Rgb(r, g, b) => {
-                    write_param!(48);
-                    write_param!(2);
-                    write_param!(r);
-                    write_param!(g);
-                    write_param!(b);
-                }
-            }
-        }
-
-        if let Some(intensity) = self.intensity {
-            match intensity {
-                Intensity::Normal => write_param!(22),
-                Intensity::Bold => write_param!(1),
-                Intensity::Dim => write_param!(2),
-            }
-        }
-
-        if let Some(italic) = self.italic {
-            if italic {
-                write_param!(3);
-            } else {
-                write_param!(23);
-            }
-        }
-
-        if let Some(underline) = self.underline {
-            if underline {
-                write_param!(4);
-            } else {
-                write_param!(24);
-            }
-        }
-
-        if let Some(inverse) = self.inverse {
-            if inverse {
-                write_param!(7);
-            } else {
-                write_param!(27);
-            }
-        }
-
-        buf.push(b'm');
-    }
-}
-
-#[derive(Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct MoveRight {
-    count: u16,
-}
-
-impl MoveRight {
-    pub fn new(count: u16) -> Self {
-        Self { count }
-    }
-}
-
-impl Default for MoveRight {
-    fn default() -> Self {
-        Self { count: 1 }
-    }
-}
-
-impl BufWrite for MoveRight {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        match self.count {
-            0 => {}
-            1 => buf.extend_from_slice(b"\x1b[C"),
-            n => {
-                buf.extend_from_slice(b"\x1b[");
-                extend_itoa(buf, n);
-                buf.push(b'C');
-            }
-        }
-    }
-}
-
-#[derive(Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct EraseChar {
-    count: u16,
-}
-
-impl EraseChar {
-    pub fn new(count: u16) -> Self {
-        Self { count }
-    }
-}
-
-impl Default for EraseChar {
-    fn default() -> Self {
-        Self { count: 1 }
-    }
-}
-
-impl BufWrite for EraseChar {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        match self.count {
-            0 => {}
-            1 => buf.extend_from_slice(b"\x1b[X"),
-            n => {
-                buf.extend_from_slice(b"\x1b[");
-                extend_itoa(buf, n);
-                buf.push(b'X');
-            }
-        }
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct HideCursor {
-    state: bool,
-}
-
-impl HideCursor {
-    pub fn new(state: bool) -> Self {
-        Self { state }
-    }
-}
-
-impl BufWrite for HideCursor {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        if self.state {
-            buf.extend_from_slice(b"\x1b[?25l");
-        } else {
-            buf.extend_from_slice(b"\x1b[?25h");
-        }
-    }
-}
-
-#[derive(Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct MoveFromTo {
-    from: crate::grid::Pos,
-    to: crate::grid::Pos,
-}
-
-impl MoveFromTo {
-    pub fn new(from: crate::grid::Pos, to: crate::grid::Pos) -> Self {
-        Self { from, to }
-    }
-}
-
-impl BufWrite for MoveFromTo {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        if self.to.row == self.from.row + 1 && self.to.col == 0 {
-            crate::term::Crlf.write_buf(buf);
-        } else if self.from.row == self.to.row && self.from.col < self.to.col
-        {
-            crate::term::MoveRight::new(self.to.col - self.from.col)
-                .write_buf(buf);
-        } else if self.to != self.from {
-            crate::term::MoveTo::new(self.to).write_buf(buf);
-        }
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct ApplicationKeypad {
-    state: bool,
-}
-
-impl ApplicationKeypad {
-    pub fn new(state: bool) -> Self {
-        Self { state }
-    }
-}
-
-impl BufWrite for ApplicationKeypad {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        if self.state {
-            buf.extend_from_slice(b"\x1b=");
-        } else {
-            buf.extend_from_slice(b"\x1b>");
-        }
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct ApplicationCursor {
-    state: bool,
-}
-
-impl ApplicationCursor {
-    pub fn new(state: bool) -> Self {
-        Self { state }
-    }
-}
-
-impl BufWrite for ApplicationCursor {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        if self.state {
-            buf.extend_from_slice(b"\x1b[?1h");
-        } else {
-            buf.extend_from_slice(b"\x1b[?1l");
-        }
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct BracketedPaste {
-    state: bool,
-}
-
-impl BracketedPaste {
-    pub fn new(state: bool) -> Self {
-        Self { state }
-    }
-}
-
-impl BufWrite for BracketedPaste {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        if self.state {
-            buf.extend_from_slice(b"\x1b[?2004h");
-        } else {
-            buf.extend_from_slice(b"\x1b[?2004l");
-        }
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct MouseProtocolMode {
-    mode: crate::MouseProtocolMode,
-    prev: crate::MouseProtocolMode,
-}
-
-impl MouseProtocolMode {
-    pub fn new(
-        mode: crate::MouseProtocolMode,
-        prev: crate::MouseProtocolMode,
-    ) -> Self {
-        Self { mode, prev }
-    }
-}
-
-impl BufWrite for MouseProtocolMode {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        if self.mode == self.prev {
-            return;
-        }
-
-        match self.mode {
-            crate::MouseProtocolMode::None => match self.prev {
-                crate::MouseProtocolMode::None => {}
-                crate::MouseProtocolMode::Press => {
-                    buf.extend_from_slice(b"\x1b[?9l");
-                }
-                crate::MouseProtocolMode::PressRelease => {
-                    buf.extend_from_slice(b"\x1b[?1000l");
-                }
-                crate::MouseProtocolMode::ButtonMotion => {
-                    buf.extend_from_slice(b"\x1b[?1002l");
-                }
-                crate::MouseProtocolMode::AnyMotion => {
-                    buf.extend_from_slice(b"\x1b[?1003l");
-                }
-            },
-            crate::MouseProtocolMode::Press => {
-                buf.extend_from_slice(b"\x1b[?9h");
-            }
-            crate::MouseProtocolMode::PressRelease => {
-                buf.extend_from_slice(b"\x1b[?1000h");
-            }
-            crate::MouseProtocolMode::ButtonMotion => {
-                buf.extend_from_slice(b"\x1b[?1002h");
-            }
-            crate::MouseProtocolMode::AnyMotion => {
-                buf.extend_from_slice(b"\x1b[?1003h");
-            }
-        }
-    }
-}
-
-#[derive(Default, Debug)]
-#[must_use = "this struct does nothing unless you call write_buf"]
-pub struct MouseProtocolEncoding {
-    encoding: crate::MouseProtocolEncoding,
-    prev: crate::MouseProtocolEncoding,
-}
-
-impl MouseProtocolEncoding {
-    pub fn new(
-        encoding: crate::MouseProtocolEncoding,
-        prev: crate::MouseProtocolEncoding,
-    ) -> Self {
-        Self { encoding, prev }
-    }
-}
-
-impl BufWrite for MouseProtocolEncoding {
-    fn write_buf(&self, buf: &mut Vec<u8>) {
-        if self.encoding == self.prev {
-            return;
-        }
-
-        match self.encoding {
-            crate::MouseProtocolEncoding::Default => match self.prev {
-                crate::MouseProtocolEncoding::Default => {}
-                crate::MouseProtocolEncoding::Utf8 => {
-                    buf.extend_from_slice(b"\x1b[?1005l");
-                }
-                crate::MouseProtocolEncoding::Sgr => {
-                    buf.extend_from_slice(b"\x1b[?1006l");
-                }
-            },
-            crate::MouseProtocolEncoding::Utf8 => {
-                buf.extend_from_slice(b"\x1b[?1005h");
-            }
-            crate::MouseProtocolEncoding::Sgr => {
-                buf.extend_from_slice(b"\x1b[?1006h");
-            }
-        }
-    }
-}
-
-fn extend_itoa<I: itoa::Integer>(buf: &mut Vec<u8>, i: I) {
-    let mut itoa_buf = itoa::Buffer::new();
-    buf.extend_from_slice(itoa_buf.format(i).as_bytes());
-}