mirror of
https://github.com/alacritty/alacritty.git
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Ignore unsupported CSI sequences
Instead of ignoring unexpected intermediates in CSI escape sequences, the intermediates are now explicitly checked and the escape sequence is rejected when an unexpected intermediate is found. Fixes #2171.
This commit is contained in:
Koichi Murase
Christian Duerr
parent
b20d285782
commit
33cfc52909
7 changed files with 167 additions and 138 deletions
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@ -38,6 +38,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
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- On Linux, respect fontconfig's `embeddedbitmap` configuration option
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- Selecting trailing tab with semantic expansion
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- URL parser incorrectly handling Markdown URLs and angled brackets
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- Intermediate bytes of CSI sequences not checked
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## 0.3.3
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@ -890,11 +890,7 @@ where
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}
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#[inline]
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fn csi_dispatch(&mut self, args: &[i64], intermediates: &[u8], _ignore: bool, action: char) {
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let private = intermediates.get(0).map(|b| *b == b'?').unwrap_or(false);
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let handler = &mut self.handler;
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let writer = &mut self.writer;
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fn csi_dispatch(&mut self, args: &[i64], intermediates: &[u8], has_ignored_intermediates: bool, action: char) {
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macro_rules! unhandled {
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() => {{
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debug!(
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@ -913,12 +909,19 @@ where
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};
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}
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match action {
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'@' => handler.insert_blank(Column(arg_or_default!(idx: 0, default: 1) as usize)),
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'A' => {
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if has_ignored_intermediates || intermediates.len() > 1 {
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unhandled!();
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}
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let handler = &mut self.handler;
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let writer = &mut self.writer;
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match (action, intermediates.get(0)) {
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('@', None) => handler.insert_blank(Column(arg_or_default!(idx: 0, default: 1) as usize)),
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('A', None) => {
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handler.move_up(Line(arg_or_default!(idx: 0, default: 1) as usize));
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},
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'b' => {
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('b', None) => {
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if let Some(c) = self._state.preceding_char {
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for _ in 0..arg_or_default!(idx: 0, default: 1) {
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handler.input(c);
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@ -927,13 +930,13 @@ where
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debug!("tried to repeat with no preceding char");
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}
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},
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'B' | 'e' => handler.move_down(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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'c' => handler.identify_terminal(writer),
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'C' | 'a' => handler.move_forward(Column(arg_or_default!(idx: 0, default: 1) as usize)),
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'D' => handler.move_backward(Column(arg_or_default!(idx: 0, default: 1) as usize)),
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'E' => handler.move_down_and_cr(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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'F' => handler.move_up_and_cr(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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'g' => {
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('B', None) | ('e', None) => handler.move_down(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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('c', None) => handler.identify_terminal(writer),
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('C', None) | ('a', None) => handler.move_forward(Column(arg_or_default!(idx: 0, default: 1) as usize)),
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('D', None) => handler.move_backward(Column(arg_or_default!(idx: 0, default: 1) as usize)),
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('E', None) => handler.move_down_and_cr(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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('F', None) => handler.move_up_and_cr(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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('g', None) => {
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let mode = match arg_or_default!(idx: 0, default: 0) {
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0 => TabulationClearMode::Current,
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3 => TabulationClearMode::All,
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@ -942,14 +945,14 @@ where
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handler.clear_tabs(mode);
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},
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'G' | '`' => handler.goto_col(Column(arg_or_default!(idx: 0, default: 1) as usize - 1)),
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'H' | 'f' => {
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('G', None) | ('`', None) => handler.goto_col(Column(arg_or_default!(idx: 0, default: 1) as usize - 1)),
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('H', None) | ('f', None) => {
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let y = arg_or_default!(idx: 0, default: 1) as usize;
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let x = arg_or_default!(idx: 1, default: 1) as usize;
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handler.goto(Line(y - 1), Column(x - 1));
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},
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'I' => handler.move_forward_tabs(arg_or_default!(idx: 0, default: 1)),
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'J' => {
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('I', None) => handler.move_forward_tabs(arg_or_default!(idx: 0, default: 1)),
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('J', None) => {
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let mode = match arg_or_default!(idx: 0, default: 0) {
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0 => ClearMode::Below,
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1 => ClearMode::Above,
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@ -960,7 +963,7 @@ where
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handler.clear_screen(mode);
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},
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'K' => {
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('K', None) => {
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let mode = match arg_or_default!(idx: 0, default: 0) {
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0 => LineClearMode::Right,
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1 => LineClearMode::Left,
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@ -970,129 +973,68 @@ where
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handler.clear_line(mode);
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},
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'S' => handler.scroll_up(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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'T' => handler.scroll_down(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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'L' => handler.insert_blank_lines(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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'l' => {
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('S', None) => handler.scroll_up(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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('T', None) => handler.scroll_down(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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('L', None) => handler.insert_blank_lines(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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('l', intermediate) => {
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let is_private_mode = match intermediate {
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Some(b'?') => true,
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None => false,
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_ => unhandled!(),
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};
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for arg in args {
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let mode = Mode::from_primitive(private, *arg);
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let mode = Mode::from_primitive(is_private_mode, *arg);
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match mode {
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Some(mode) => handler.unset_mode(mode),
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None => unhandled!(),
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}
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}
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},
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'M' => handler.delete_lines(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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'X' => handler.erase_chars(Column(arg_or_default!(idx: 0, default: 1) as usize)),
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'P' => handler.delete_chars(Column(arg_or_default!(idx: 0, default: 1) as usize)),
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'Z' => handler.move_backward_tabs(arg_or_default!(idx: 0, default: 1)),
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'd' => handler.goto_line(Line(arg_or_default!(idx: 0, default: 1) as usize - 1)),
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'h' => {
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('M', None) => handler.delete_lines(Line(arg_or_default!(idx: 0, default: 1) as usize)),
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('X', None) => handler.erase_chars(Column(arg_or_default!(idx: 0, default: 1) as usize)),
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('P', None) => handler.delete_chars(Column(arg_or_default!(idx: 0, default: 1) as usize)),
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('Z', None) => handler.move_backward_tabs(arg_or_default!(idx: 0, default: 1)),
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('d', None) => handler.goto_line(Line(arg_or_default!(idx: 0, default: 1) as usize - 1)),
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('h', intermediate) => {
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let is_private_mode = match intermediate {
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Some(b'?') => true,
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None => false,
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_ => unhandled!(),
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};
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for arg in args {
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let mode = Mode::from_primitive(private, *arg);
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let mode = Mode::from_primitive(is_private_mode, *arg);
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match mode {
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Some(mode) => handler.set_mode(mode),
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None => unhandled!(),
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}
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}
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},
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'm' => {
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// Sometimes a C-style for loop is just what you need
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let mut i = 0; // C-for initializer
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('m', None) => {
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if args.is_empty() {
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handler.terminal_attribute(Attr::Reset);
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return;
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}
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loop {
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if i >= args.len() {
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// C-for condition
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break;
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} else {
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for attr in attrs_from_sgr_parameters(args) {
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match attr {
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Some(attr) => handler.terminal_attribute(attr),
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None => unhandled!(),
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}
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}
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let attr = match args[i] {
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0 => Attr::Reset,
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1 => Attr::Bold,
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2 => Attr::Dim,
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3 => Attr::Italic,
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4 => Attr::Underscore,
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5 => Attr::BlinkSlow,
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6 => Attr::BlinkFast,
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7 => Attr::Reverse,
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8 => Attr::Hidden,
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9 => Attr::Strike,
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21 => Attr::CancelBold,
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22 => Attr::CancelBoldDim,
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23 => Attr::CancelItalic,
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24 => Attr::CancelUnderline,
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25 => Attr::CancelBlink,
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27 => Attr::CancelReverse,
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28 => Attr::CancelHidden,
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29 => Attr::CancelStrike,
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30 => Attr::Foreground(Color::Named(NamedColor::Black)),
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31 => Attr::Foreground(Color::Named(NamedColor::Red)),
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32 => Attr::Foreground(Color::Named(NamedColor::Green)),
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33 => Attr::Foreground(Color::Named(NamedColor::Yellow)),
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34 => Attr::Foreground(Color::Named(NamedColor::Blue)),
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35 => Attr::Foreground(Color::Named(NamedColor::Magenta)),
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36 => Attr::Foreground(Color::Named(NamedColor::Cyan)),
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37 => Attr::Foreground(Color::Named(NamedColor::White)),
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38 => {
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let mut start = 0;
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if let Some(color) = parse_color(&args[i..], &mut start) {
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i += start;
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Attr::Foreground(color)
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} else {
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break;
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}
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},
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39 => Attr::Foreground(Color::Named(NamedColor::Foreground)),
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40 => Attr::Background(Color::Named(NamedColor::Black)),
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41 => Attr::Background(Color::Named(NamedColor::Red)),
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42 => Attr::Background(Color::Named(NamedColor::Green)),
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43 => Attr::Background(Color::Named(NamedColor::Yellow)),
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44 => Attr::Background(Color::Named(NamedColor::Blue)),
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45 => Attr::Background(Color::Named(NamedColor::Magenta)),
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46 => Attr::Background(Color::Named(NamedColor::Cyan)),
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47 => Attr::Background(Color::Named(NamedColor::White)),
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48 => {
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let mut start = 0;
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if let Some(color) = parse_color(&args[i..], &mut start) {
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i += start;
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Attr::Background(color)
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} else {
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break;
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}
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},
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49 => Attr::Background(Color::Named(NamedColor::Background)),
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90 => Attr::Foreground(Color::Named(NamedColor::BrightBlack)),
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91 => Attr::Foreground(Color::Named(NamedColor::BrightRed)),
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92 => Attr::Foreground(Color::Named(NamedColor::BrightGreen)),
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93 => Attr::Foreground(Color::Named(NamedColor::BrightYellow)),
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94 => Attr::Foreground(Color::Named(NamedColor::BrightBlue)),
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95 => Attr::Foreground(Color::Named(NamedColor::BrightMagenta)),
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96 => Attr::Foreground(Color::Named(NamedColor::BrightCyan)),
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97 => Attr::Foreground(Color::Named(NamedColor::BrightWhite)),
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100 => Attr::Background(Color::Named(NamedColor::BrightBlack)),
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101 => Attr::Background(Color::Named(NamedColor::BrightRed)),
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102 => Attr::Background(Color::Named(NamedColor::BrightGreen)),
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103 => Attr::Background(Color::Named(NamedColor::BrightYellow)),
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104 => Attr::Background(Color::Named(NamedColor::BrightBlue)),
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105 => Attr::Background(Color::Named(NamedColor::BrightMagenta)),
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106 => Attr::Background(Color::Named(NamedColor::BrightCyan)),
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107 => Attr::Background(Color::Named(NamedColor::BrightWhite)),
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_ => unhandled!(),
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};
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handler.terminal_attribute(attr);
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i += 1; // C-for expr
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}
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},
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'n' => handler.device_status(writer, arg_or_default!(idx: 0, default: 0) as usize),
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'r' => {
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if private {
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unhandled!();
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}
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('n', None) => handler.device_status(writer, arg_or_default!(idx: 0, default: 0) as usize),
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('q', Some(b' ')) => {
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// DECSCUSR (CSI Ps SP q) -- Set Cursor Style
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let style = match arg_or_default!(idx: 0, default: 0) {
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0 => None,
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1 | 2 => Some(CursorStyle::Block),
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3 | 4 => Some(CursorStyle::Underline),
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5 | 6 => Some(CursorStyle::Beam),
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_ => unhandled!(),
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};
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handler.set_cursor_style(style);
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},
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('r', None) => {
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let arg0 = arg_or_default!(idx: 0, default: 1) as usize;
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let top = Line(arg0 - 1);
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// Bottom should be included in the range, but range end is not
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@ -1104,19 +1046,8 @@ where
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handler.set_scrolling_region(top..bottom);
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},
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's' => handler.save_cursor_position(),
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'u' => handler.restore_cursor_position(),
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'q' => {
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let style = match arg_or_default!(idx: 0, default: 0) {
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0 => None,
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1 | 2 => Some(CursorStyle::Block),
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3 | 4 => Some(CursorStyle::Underline),
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5 | 6 => Some(CursorStyle::Beam),
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_ => unhandled!(),
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};
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handler.set_cursor_style(style);
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},
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('s', None) => handler.save_cursor_position(),
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('u', None) => handler.restore_cursor_position(),
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_ => unhandled!(),
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}
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}
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@ -1174,6 +1105,97 @@ where
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}
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}
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fn attrs_from_sgr_parameters(parameters: &[i64]) -> Vec<Option<Attr>> {
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// Sometimes a C-style for loop is just what you need
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let mut i = 0; // C-for initializer
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let mut attrs = Vec::with_capacity(parameters.len());
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loop {
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if i >= parameters.len() {
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// C-for condition
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break;
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}
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let attr = match parameters[i] {
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0 => Some(Attr::Reset),
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1 => Some(Attr::Bold),
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2 => Some(Attr::Dim),
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3 => Some(Attr::Italic),
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4 => Some(Attr::Underscore),
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5 => Some(Attr::BlinkSlow),
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6 => Some(Attr::BlinkFast),
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7 => Some(Attr::Reverse),
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8 => Some(Attr::Hidden),
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9 => Some(Attr::Strike),
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21 => Some(Attr::CancelBold),
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22 => Some(Attr::CancelBoldDim),
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23 => Some(Attr::CancelItalic),
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24 => Some(Attr::CancelUnderline),
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25 => Some(Attr::CancelBlink),
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27 => Some(Attr::CancelReverse),
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28 => Some(Attr::CancelHidden),
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29 => Some(Attr::CancelStrike),
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30 => Some(Attr::Foreground(Color::Named(NamedColor::Black))),
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31 => Some(Attr::Foreground(Color::Named(NamedColor::Red))),
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32 => Some(Attr::Foreground(Color::Named(NamedColor::Green))),
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33 => Some(Attr::Foreground(Color::Named(NamedColor::Yellow))),
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34 => Some(Attr::Foreground(Color::Named(NamedColor::Blue))),
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35 => Some(Attr::Foreground(Color::Named(NamedColor::Magenta))),
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36 => Some(Attr::Foreground(Color::Named(NamedColor::Cyan))),
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37 => Some(Attr::Foreground(Color::Named(NamedColor::White))),
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38 => {
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let mut start = 0;
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if let Some(color) = parse_color(¶meters[i..], &mut start) {
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i += start;
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Some(Attr::Foreground(color))
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} else {
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None
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}
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},
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39 => Some(Attr::Foreground(Color::Named(NamedColor::Foreground))),
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40 => Some(Attr::Background(Color::Named(NamedColor::Black))),
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41 => Some(Attr::Background(Color::Named(NamedColor::Red))),
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42 => Some(Attr::Background(Color::Named(NamedColor::Green))),
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43 => Some(Attr::Background(Color::Named(NamedColor::Yellow))),
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44 => Some(Attr::Background(Color::Named(NamedColor::Blue))),
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45 => Some(Attr::Background(Color::Named(NamedColor::Magenta))),
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46 => Some(Attr::Background(Color::Named(NamedColor::Cyan))),
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47 => Some(Attr::Background(Color::Named(NamedColor::White))),
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48 => {
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let mut start = 0;
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if let Some(color) = parse_color(¶meters[i..], &mut start) {
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i += start;
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Some(Attr::Background(color))
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} else {
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None
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}
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},
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49 => Some(Attr::Background(Color::Named(NamedColor::Background))),
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90 => Some(Attr::Foreground(Color::Named(NamedColor::BrightBlack))),
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91 => Some(Attr::Foreground(Color::Named(NamedColor::BrightRed))),
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92 => Some(Attr::Foreground(Color::Named(NamedColor::BrightGreen))),
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93 => Some(Attr::Foreground(Color::Named(NamedColor::BrightYellow))),
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94 => Some(Attr::Foreground(Color::Named(NamedColor::BrightBlue))),
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95 => Some(Attr::Foreground(Color::Named(NamedColor::BrightMagenta))),
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96 => Some(Attr::Foreground(Color::Named(NamedColor::BrightCyan))),
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97 => Some(Attr::Foreground(Color::Named(NamedColor::BrightWhite))),
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100 => Some(Attr::Background(Color::Named(NamedColor::BrightBlack))),
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101 => Some(Attr::Background(Color::Named(NamedColor::BrightRed))),
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102 => Some(Attr::Background(Color::Named(NamedColor::BrightGreen))),
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103 => Some(Attr::Background(Color::Named(NamedColor::BrightYellow))),
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104 => Some(Attr::Background(Color::Named(NamedColor::BrightBlue))),
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105 => Some(Attr::Background(Color::Named(NamedColor::BrightMagenta))),
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106 => Some(Attr::Background(Color::Named(NamedColor::BrightCyan))),
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107 => Some(Attr::Background(Color::Named(NamedColor::BrightWhite))),
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_ => None,
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};
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attrs.push(attr);
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i += 1; // C-for expr
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}
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attrs
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}
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/// Parse a color specifier from list of attributes
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fn parse_color(attrs: &[i64], i: &mut usize) -> Option<Color> {
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if attrs.len() < 2 {
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|||
|
|
@ -53,6 +53,7 @@ ref_tests! {
|
|||
grid_reset
|
||||
row_reset
|
||||
zerowidth
|
||||
selective_erasure
|
||||
}
|
||||
|
||||
fn read_u8<P>(path: P) -> Vec<u8>
|
||||
|
|
|
|||
|
|
@ -0,0 +1,2 @@
|
|||
[HA[1"qB[2"qC[?2J
|
||||
A[1"qB[2"qC[?2K
|
||||
|
|
@ -0,0 +1 @@
|
|||
{"history_size":0}
|
||||
1
alacritty_terminal/tests/ref/selective_erasure/grid.json
Normal file
1
alacritty_terminal/tests/ref/selective_erasure/grid.json
Normal file
|
|
@ -0,0 +1 @@
|
|||
{"raw":{"inner":[{"inner":[{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]}],"occ":0},{"inner":[{"c":"A","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":"B","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":"C","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]}],"occ":3},{"inner":[{"c":"A","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":"B","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":"C","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]}],"occ":3}],"zero":0,"visible_lines":2,"len":3},"cols":10,"lines":3,"display_offset":0,"scroll_limit":0,"max_scroll_limit":0,"url_highlight":null}
|
||||
1
alacritty_terminal/tests/ref/selective_erasure/size.json
Normal file
1
alacritty_terminal/tests/ref/selective_erasure/size.json
Normal file
|
|
@ -0,0 +1 @@
|
|||
{"width":70.0,"height":63.0,"cell_width":7.0,"cell_height":21.0,"padding_x":0.0,"padding_y":0.0,"dpr":1.0}
|
||||
Loading…
Reference in a new issue