ddidderr
d13dcc8a7f
Adds tools/difftest: a Zig driver built against a copy of Ghostty 1.3.1's own src/terminal (Zig 0.15.2, set up under target/ by tools/difftest/setup.sh) and a Rust twin on ghostty-terminal, both printing a canonical dump of every scrollback/active row (cells, graphemes, styles, hyperlinks, row flags), cursor, modes, regions, tabstops and colors. A seeded generator produces escape-heavy streams (UTF-8/wide/combining/emoji, C0, CSI with edge params, SGR, modes, ESC, OSC, DCS, margins, insert/delete); `just difftest` runs it with Zig assertions on (ReleaseSafe vs debug Rust) and off (ReleaseFast vs production Rust), with minimizers and a triage script. Divergences found and fixed in Rust (each with a regression test): - ill-formed UTF-8 decoding follows the SIMD path a default Ghostty build uses (not Zig's scalar fallback) - PageList::erase_rows keeps Zig's row-flag behavior on regrow - grapheme move on wrap with left/right margins uses the original cell Upstream bugs found and deliberately NOT replicated (per the project rule): a stale cell pointer after page growth in Terminal.zig:482/539 that drops a grapheme, plus several Zig assertion failures/segfaults; documented with minimized repros in docs/rewrite/notes/difftest-DF.md. Final run: 390k cases across many geometries, 0 divergences (Zig-abort cases, ~0.1-0.5%, are not compared). Test Plan: - just difftest 20000 "1 2 3" - cargo test -p ghostty-terminal (regression tests)
1116 lines
41 KiB
Rust
1116 lines
41 KiB
Rust
//! A stream handler that applies all terminal-state-modifying actions to a
|
|
//! [`Terminal`] and ignores everything that would require a response.
|
|
//!
|
|
//! Port of `ZIG/src/terminal/stream_readonly.zig`.
|
|
//!
|
|
//! This is a Stream implementation that processes actions against a Terminal
|
|
//! and updates the Terminal state. It is called "readonly" because it only
|
|
//! processes actions that modify terminal state, while ignoring any actions
|
|
//! that require a response (like queries).
|
|
//!
|
|
//! If you're implementing a terminal emulator that only needs to render
|
|
//! output and doesn't need to respond (since it maybe isn't running the
|
|
//! actual program), this is the stream type to use. For example, this is
|
|
//! ideal for replay tooling, CI logs, PaaS builder output, etc.
|
|
use ghostty_vt::{
|
|
ansi::{CursorStyle as AnsiCursorStyle, ModifyKeyFormat, ProtectedMode},
|
|
color::Dynamic as DynamicColor,
|
|
csi,
|
|
kitty::{self, key::SetMode as KittySetMode},
|
|
modes::Mode,
|
|
osc::color::{self as osc_color, Request, Target},
|
|
stream::{self, Action},
|
|
};
|
|
|
|
use crate::{
|
|
cursor::Style as CursorStyle,
|
|
terminal::{
|
|
DeccolmMode,
|
|
Error,
|
|
MouseEvents,
|
|
MouseFormat,
|
|
MouseShiftCapture,
|
|
SwitchScreenMode,
|
|
Terminal,
|
|
},
|
|
};
|
|
|
|
/// The stream type wrapping [`Handler`].
|
|
pub type Stream<'a> = stream::Stream<Handler<'a>>;
|
|
|
|
/// See [`Stream`], which is just the stream wrapper around this.
|
|
///
|
|
/// This isn't attached directly to Terminal because there is additional
|
|
/// state and options we plan to add in the future, such as APC/DCS which
|
|
/// don't make sense to me to add to the Terminal directly. Instead, you
|
|
/// can call `vt_handler` on Terminal to initialize this handler.
|
|
pub struct Handler<'a> {
|
|
/// The terminal state to modify.
|
|
pub terminal: &'a mut Terminal,
|
|
}
|
|
|
|
impl<'a> Handler<'a> {
|
|
pub fn new(terminal: &'a mut Terminal) -> Self {
|
|
Self { terminal }
|
|
}
|
|
|
|
fn horizontal_tab(&mut self, count: u16) {
|
|
for _ in 0..count {
|
|
let x = self.terminal.screen().cursor.x;
|
|
self.terminal.horizontal_tab();
|
|
if x == self.terminal.screen().cursor.x {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
fn horizontal_tab_back(&mut self, count: u16) {
|
|
for _ in 0..count {
|
|
let x = self.terminal.screen().cursor.x;
|
|
self.terminal.horizontal_tab_back();
|
|
if x == self.terminal.screen().cursor.x {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
fn set_mode(&mut self, mode: Mode, enabled: bool) -> Result<(), Error> {
|
|
// Set the mode on the terminal
|
|
self.terminal.modes.set(mode, enabled);
|
|
|
|
// Some modes require additional processing
|
|
match mode {
|
|
Mode::Autorepeat | Mode::ReverseColors => {}
|
|
|
|
Mode::Origin => self.terminal.set_cursor_pos(1, 1),
|
|
|
|
Mode::EnableLeftAndRightMargin => {
|
|
if !enabled {
|
|
self.terminal.scrolling_region.left = 0;
|
|
self.terminal.scrolling_region.right = self.terminal.cols - 1;
|
|
}
|
|
}
|
|
|
|
Mode::AltScreenLegacy => self
|
|
.terminal
|
|
.switch_screen_mode(SwitchScreenMode::M47, enabled)?,
|
|
Mode::AltScreen => self
|
|
.terminal
|
|
.switch_screen_mode(SwitchScreenMode::M1047, enabled)?,
|
|
Mode::AltScreenSaveCursorClearEnter => self
|
|
.terminal
|
|
.switch_screen_mode(SwitchScreenMode::M1049, enabled)?,
|
|
|
|
Mode::SaveCursor => {
|
|
if enabled {
|
|
self.terminal.save_cursor();
|
|
} else {
|
|
self.terminal.restore_cursor();
|
|
}
|
|
}
|
|
|
|
Mode::EnableMode3 => {}
|
|
|
|
Mode::M132Column => self.terminal.deccolm(if enabled {
|
|
DeccolmMode::Cols132
|
|
} else {
|
|
DeccolmMode::Cols80
|
|
})?,
|
|
|
|
Mode::SynchronizedOutput
|
|
| Mode::Linefeed
|
|
| Mode::InBandSizeReports
|
|
| Mode::FocusEvent => {}
|
|
|
|
Mode::MouseEventX10 => {
|
|
self.terminal.flags.mouse_event = if enabled {
|
|
MouseEvents::X10
|
|
} else {
|
|
MouseEvents::None
|
|
};
|
|
}
|
|
Mode::MouseEventNormal => {
|
|
self.terminal.flags.mouse_event = if enabled {
|
|
MouseEvents::Normal
|
|
} else {
|
|
MouseEvents::None
|
|
};
|
|
}
|
|
Mode::MouseEventButton => {
|
|
self.terminal.flags.mouse_event = if enabled {
|
|
MouseEvents::Button
|
|
} else {
|
|
MouseEvents::None
|
|
};
|
|
}
|
|
Mode::MouseEventAny => {
|
|
self.terminal.flags.mouse_event = if enabled {
|
|
MouseEvents::Any
|
|
} else {
|
|
MouseEvents::None
|
|
};
|
|
}
|
|
|
|
Mode::MouseFormatUtf8 => {
|
|
self.terminal.flags.mouse_format = if enabled {
|
|
MouseFormat::Utf8
|
|
} else {
|
|
MouseFormat::X10
|
|
};
|
|
}
|
|
Mode::MouseFormatSgr => {
|
|
self.terminal.flags.mouse_format = if enabled {
|
|
MouseFormat::Sgr
|
|
} else {
|
|
MouseFormat::X10
|
|
};
|
|
}
|
|
Mode::MouseFormatUrxvt => {
|
|
self.terminal.flags.mouse_format = if enabled {
|
|
MouseFormat::Urxvt
|
|
} else {
|
|
MouseFormat::X10
|
|
};
|
|
}
|
|
Mode::MouseFormatSgrPixels => {
|
|
self.terminal.flags.mouse_format = if enabled {
|
|
MouseFormat::SgrPixels
|
|
} else {
|
|
MouseFormat::X10
|
|
};
|
|
}
|
|
|
|
_ => {}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
fn color_operation(&mut self, requests: &osc_color::List<'_>) {
|
|
for req in requests.iter() {
|
|
match req {
|
|
Request::Set(set) => match set.target {
|
|
Target::Palette(i) => {
|
|
self.terminal.flags.dirty.palette = true;
|
|
self.terminal.colors.palette.set(i, set.color);
|
|
}
|
|
Target::Dynamic(dynamic) => match dynamic {
|
|
DynamicColor::Foreground => self.terminal.colors.foreground.set(set.color),
|
|
DynamicColor::Background => self.terminal.colors.background.set(set.color),
|
|
DynamicColor::Cursor => self.terminal.colors.cursor.set(set.color),
|
|
_ => {}
|
|
},
|
|
Target::Special(_) => {}
|
|
},
|
|
|
|
Request::Reset(target) => match target {
|
|
Target::Palette(i) => {
|
|
self.terminal.flags.dirty.palette = true;
|
|
self.terminal.colors.palette.reset(i);
|
|
}
|
|
Target::Dynamic(dynamic) => match dynamic {
|
|
DynamicColor::Foreground => self.terminal.colors.foreground.reset(),
|
|
DynamicColor::Background => self.terminal.colors.background.reset(),
|
|
DynamicColor::Cursor => self.terminal.colors.cursor.reset(),
|
|
_ => {}
|
|
},
|
|
Target::Special(_) => {}
|
|
},
|
|
|
|
Request::ResetPalette => {
|
|
let indices: Vec<usize> = self.terminal.colors.palette.mask.iter().collect();
|
|
for i in indices {
|
|
self.terminal.flags.dirty.palette = true;
|
|
self.terminal.colors.palette.reset(i as u8);
|
|
}
|
|
self.terminal.colors.palette.mask =
|
|
ghostty_vt::color::PaletteMask::init_empty();
|
|
}
|
|
|
|
Request::Query(_) | Request::ResetSpecial => {}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn kitty_color_operation(&mut self, request: &kitty::color::OSC<'_>) {
|
|
use kitty::color::{Kind, Request as KReq, Special};
|
|
for item in request.list.iter() {
|
|
match &item {
|
|
KReq::Set { key, color } => match key {
|
|
Kind::Palette(palette) => {
|
|
self.terminal.flags.dirty.palette = true;
|
|
self.terminal.colors.palette.set(*palette, *color);
|
|
}
|
|
Kind::Special(special) => match special {
|
|
Special::Foreground => self.terminal.colors.foreground.set(*color),
|
|
Special::Background => self.terminal.colors.background.set(*color),
|
|
Special::Cursor => self.terminal.colors.cursor.set(*color),
|
|
_ => {}
|
|
},
|
|
},
|
|
KReq::Reset(key) => match key {
|
|
Kind::Palette(palette) => {
|
|
self.terminal.flags.dirty.palette = true;
|
|
self.terminal.colors.palette.reset(*palette);
|
|
}
|
|
Kind::Special(special) => match special {
|
|
Special::Foreground => self.terminal.colors.foreground.reset(),
|
|
Special::Background => self.terminal.colors.background.reset(),
|
|
Special::Cursor => self.terminal.colors.cursor.reset(),
|
|
_ => {}
|
|
},
|
|
},
|
|
KReq::Query(_) => {}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl stream::Handler for Handler<'_> {
|
|
type Error = Error;
|
|
|
|
fn vt(&mut self, action: Action<'_>) -> Result<(), Error> {
|
|
let t = &mut *self.terminal;
|
|
match action {
|
|
Action::Print(v) => t.print(v.cp)?,
|
|
Action::PrintRepeat(v) => t.print_repeat(v)?,
|
|
Action::Backspace => t.backspace(),
|
|
Action::CarriageReturn => t.carriage_return(),
|
|
Action::Linefeed => t.linefeed()?,
|
|
Action::Index => t.index()?,
|
|
Action::NextLine => {
|
|
t.index()?;
|
|
t.carriage_return();
|
|
}
|
|
Action::ReverseIndex => t.reverse_index(),
|
|
Action::CursorUp(v) => t.cursor_up(usize::from(v.value)),
|
|
Action::CursorDown(v) => t.cursor_down(usize::from(v.value)),
|
|
Action::CursorLeft(v) => t.cursor_left(usize::from(v.value)),
|
|
Action::CursorRight(v) => t.cursor_right(usize::from(v.value)),
|
|
Action::CursorPos(v) => t.set_cursor_pos(usize::from(v.row), usize::from(v.col)),
|
|
Action::CursorCol(v) => {
|
|
let row = usize::from(t.screen().cursor.y) + 1;
|
|
t.set_cursor_pos(row, usize::from(v.value));
|
|
}
|
|
Action::CursorRow(v) => {
|
|
let col = usize::from(t.screen().cursor.x) + 1;
|
|
t.set_cursor_pos(usize::from(v.value), col);
|
|
}
|
|
Action::CursorColRelative(v) => {
|
|
let row = usize::from(t.screen().cursor.y) + 1;
|
|
let col =
|
|
(usize::from(t.screen().cursor.x) + 1).saturating_add(usize::from(v.value));
|
|
t.set_cursor_pos(row, col);
|
|
}
|
|
Action::CursorRowRelative(v) => {
|
|
let row =
|
|
(usize::from(t.screen().cursor.y) + 1).saturating_add(usize::from(v.value));
|
|
let col = usize::from(t.screen().cursor.x) + 1;
|
|
t.set_cursor_pos(row, col);
|
|
}
|
|
Action::CursorStyle(v) => {
|
|
let blink = match v {
|
|
AnsiCursorStyle::Default
|
|
| AnsiCursorStyle::SteadyBlock
|
|
| AnsiCursorStyle::SteadyBar
|
|
| AnsiCursorStyle::SteadyUnderline => false,
|
|
AnsiCursorStyle::BlinkingBlock
|
|
| AnsiCursorStyle::BlinkingBar
|
|
| AnsiCursorStyle::BlinkingUnderline => true,
|
|
};
|
|
let style = match v {
|
|
AnsiCursorStyle::Default
|
|
| AnsiCursorStyle::BlinkingBlock
|
|
| AnsiCursorStyle::SteadyBlock => CursorStyle::Block,
|
|
AnsiCursorStyle::BlinkingBar | AnsiCursorStyle::SteadyBar => CursorStyle::Bar,
|
|
AnsiCursorStyle::BlinkingUnderline | AnsiCursorStyle::SteadyUnderline => {
|
|
CursorStyle::Underline
|
|
}
|
|
};
|
|
t.modes.set(Mode::CursorBlinking, blink);
|
|
t.screen_mut().cursor.cursor_style = style;
|
|
}
|
|
Action::EraseDisplayBelow(p) => t.erase_display(csi::EraseDisplay::Below, p),
|
|
Action::EraseDisplayAbove(p) => t.erase_display(csi::EraseDisplay::Above, p),
|
|
Action::EraseDisplayComplete(p) => t.erase_display(csi::EraseDisplay::Complete, p),
|
|
Action::EraseDisplayScrollback(p) => t.erase_display(csi::EraseDisplay::Scrollback, p),
|
|
Action::EraseDisplayScrollComplete(p) => {
|
|
t.erase_display(csi::EraseDisplay::ScrollComplete, p);
|
|
}
|
|
Action::EraseLineRight(p) => t.erase_line(csi::EraseLine::Right, p),
|
|
Action::EraseLineLeft(p) => t.erase_line(csi::EraseLine::Left, p),
|
|
Action::EraseLineComplete(p) => t.erase_line(csi::EraseLine::Complete, p),
|
|
Action::EraseLineRightUnlessPendingWrap(p) => {
|
|
t.erase_line(csi::EraseLine::RightUnlessPendingWrap, p);
|
|
}
|
|
Action::DeleteChars(v) => t.delete_chars(v),
|
|
Action::EraseChars(v) => t.erase_chars(v),
|
|
Action::InsertLines(v) => t.insert_lines(v),
|
|
Action::InsertBlanks(v) => t.insert_blanks(v),
|
|
Action::DeleteLines(v) => t.delete_lines(v),
|
|
Action::ScrollUp(v) => t.scroll_up(v)?,
|
|
Action::ScrollDown(v) => t.scroll_down(v),
|
|
Action::HorizontalTab(v) => self.horizontal_tab(v),
|
|
Action::HorizontalTabBack(v) => self.horizontal_tab_back(v),
|
|
Action::TabClearCurrent => t.tab_clear(csi::TabClear::Current),
|
|
Action::TabClearAll => t.tab_clear(csi::TabClear::All),
|
|
Action::TabSet => t.tab_set(),
|
|
Action::TabReset => t.tab_reset(),
|
|
Action::SetMode(v) => self.set_mode(v.mode, true)?,
|
|
Action::ResetMode(v) => self.set_mode(v.mode, false)?,
|
|
Action::SaveMode(v) => t.modes.save(v.mode),
|
|
Action::RestoreMode(v) => {
|
|
let enabled = t.modes.restore(v.mode);
|
|
self.set_mode(v.mode, enabled)?;
|
|
}
|
|
Action::TopAndBottomMargin(v) => {
|
|
t.set_top_and_bottom_margin(usize::from(v.top_left), usize::from(v.bottom_right));
|
|
}
|
|
Action::LeftAndRightMargin(v) => {
|
|
t.set_left_and_right_margin(usize::from(v.top_left), usize::from(v.bottom_right));
|
|
}
|
|
Action::LeftAndRightMarginAmbiguous => {
|
|
if t.modes.get(Mode::EnableLeftAndRightMargin) {
|
|
t.set_left_and_right_margin(0, 0);
|
|
} else {
|
|
t.save_cursor();
|
|
}
|
|
}
|
|
Action::SaveCursor => t.save_cursor(),
|
|
Action::RestoreCursor => t.restore_cursor(),
|
|
Action::InvokeCharset(v) => t.invoke_charset(v.bank, v.charset, v.locking),
|
|
Action::ConfigureCharset(v) => t.configure_charset(v.slot, v.charset),
|
|
Action::SetAttribute(v) => {
|
|
if !matches!(v, ghostty_vt::sgr::Attribute::Unknown(_)) {
|
|
let _ = t.set_attribute(v);
|
|
}
|
|
}
|
|
Action::ProtectedModeOff => t.set_protected_mode(ProtectedMode::Off),
|
|
Action::ProtectedModeIso => t.set_protected_mode(ProtectedMode::Iso),
|
|
Action::ProtectedModeDec => t.set_protected_mode(ProtectedMode::Dec),
|
|
Action::MouseShiftCapture(v) => {
|
|
t.flags.mouse_shift_capture = if v {
|
|
MouseShiftCapture::True
|
|
} else {
|
|
MouseShiftCapture::False
|
|
};
|
|
}
|
|
Action::KittyKeyboardPush(v) => t.screen_mut().kitty_keyboard.push(v.flags),
|
|
Action::KittyKeyboardPop(v) => t.screen_mut().kitty_keyboard.pop(usize::from(v)),
|
|
Action::KittyKeyboardSet(v) => {
|
|
t.screen_mut()
|
|
.kitty_keyboard
|
|
.set(KittySetMode::Set, v.flags);
|
|
}
|
|
Action::KittyKeyboardSetOr(v) => {
|
|
t.screen_mut().kitty_keyboard.set(KittySetMode::Or, v.flags);
|
|
}
|
|
Action::KittyKeyboardSetNot(v) => {
|
|
t.screen_mut()
|
|
.kitty_keyboard
|
|
.set(KittySetMode::Not, v.flags);
|
|
}
|
|
Action::ModifyKeyFormat(v) => {
|
|
t.flags.modify_other_keys_2 = false;
|
|
if v == ModifyKeyFormat::OtherKeysNumeric {
|
|
t.flags.modify_other_keys_2 = true;
|
|
}
|
|
}
|
|
Action::ActiveStatusDisplay(v) => t.status_display = v,
|
|
Action::Decaln => t.decaln()?,
|
|
Action::FullReset => t.full_reset(),
|
|
Action::StartHyperlink(v) => t.screen_mut().start_hyperlink(v.uri, v.id)?,
|
|
Action::EndHyperlink => t.screen_mut().end_hyperlink(),
|
|
Action::SemanticPrompt(v) => t.semantic_prompt(v)?,
|
|
Action::MouseShape(v) => t.mouse_shape = v,
|
|
Action::ColorOperation(v) => self.color_operation(v.requests),
|
|
Action::KittyColorReport(v) => self.kitty_color_operation(v),
|
|
|
|
// No supported DCS commands have any terminal-modifying effects,
|
|
// but they may in the future. For now we just ignore it.
|
|
Action::DcsHook(_) | Action::DcsPut(_) | Action::DcsUnhook => {}
|
|
|
|
// APC can modify terminal state (Kitty graphics) but we don't
|
|
// currently support it in the readonly stream.
|
|
Action::ApcStart | Action::ApcEnd | Action::ApcPut(_) => {}
|
|
|
|
// Have no terminal-modifying effect
|
|
Action::Bell
|
|
| Action::Enquiry
|
|
| Action::RequestMode(_)
|
|
| Action::RequestModeUnknown(_)
|
|
| Action::SizeReport(_)
|
|
| Action::Xtversion
|
|
| Action::DeviceAttributes(_)
|
|
| Action::DeviceStatus(_)
|
|
| Action::KittyKeyboardQuery
|
|
| Action::WindowTitle(_)
|
|
| Action::ReportPwd(_)
|
|
| Action::ShowDesktopNotification(_)
|
|
| Action::ProgressReport(_)
|
|
| Action::ClipboardContents(_)
|
|
| Action::TitlePush(_)
|
|
| Action::TitlePop(_) => {}
|
|
}
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use ghostty_vt::osc::semantic_prompt::Redraw;
|
|
|
|
use super::*;
|
|
use crate::{page::SemanticContent, screen_set::Key as ScreenKey, terminal::Options};
|
|
|
|
fn term(cols: u16, rows: u16) -> Terminal {
|
|
Terminal::new(Options::new(cols, rows)).unwrap()
|
|
}
|
|
|
|
#[test]
|
|
fn basic_print() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
s.next_slice(b"Hello").unwrap();
|
|
assert_eq!(5, s.handler.terminal.screen().cursor.x);
|
|
assert_eq!(0, s.handler.terminal.screen().cursor.y);
|
|
|
|
assert_eq!("Hello", s.handler.terminal.plain_string().unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn cursor_movement() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Move cursor using escape sequences
|
|
s.next_slice(b"Hello\x1B[1;1H").unwrap();
|
|
assert_eq!(0, s.handler.terminal.screen().cursor.x);
|
|
assert_eq!(0, s.handler.terminal.screen().cursor.y);
|
|
|
|
// Move to position 2,3
|
|
s.next_slice(b"\x1B[2;3H").unwrap();
|
|
assert_eq!(2, s.handler.terminal.screen().cursor.x);
|
|
assert_eq!(1, s.handler.terminal.screen().cursor.y);
|
|
}
|
|
|
|
#[test]
|
|
fn erase_operations() {
|
|
let mut t = term(20, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Print some text
|
|
s.next_slice(b"Hello World").unwrap();
|
|
assert_eq!(11, s.handler.terminal.screen().cursor.x);
|
|
assert_eq!(0, s.handler.terminal.screen().cursor.y);
|
|
|
|
// Move cursor to position 1,6 and erase from cursor to end of line
|
|
s.next_slice(b"\x1B[1;6H").unwrap();
|
|
s.next_slice(b"\x1B[K").unwrap();
|
|
|
|
assert_eq!("Hello", s.handler.terminal.plain_string().unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn tabs() {
|
|
let mut t = term(80, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
s.next_slice(b"A\tB").unwrap();
|
|
assert_eq!(9, s.handler.terminal.screen().cursor.x);
|
|
assert_eq!("A B", s.handler.terminal.plain_string().unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn modes() {
|
|
let mut t = term(80, 24);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Test wraparound mode
|
|
assert!(s.handler.terminal.modes.get(Mode::Wraparound));
|
|
s.next_slice(b"\x1B[?7l").unwrap(); // Disable wraparound
|
|
assert!(!s.handler.terminal.modes.get(Mode::Wraparound));
|
|
s.next_slice(b"\x1B[?7h").unwrap(); // Enable wraparound
|
|
assert!(s.handler.terminal.modes.get(Mode::Wraparound));
|
|
}
|
|
|
|
#[test]
|
|
fn scrolling_regions() {
|
|
let mut t = term(80, 24);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Set scrolling region from line 5 to 20
|
|
s.next_slice(b"\x1B[5;20r").unwrap();
|
|
let sr = s.handler.terminal.scrolling_region;
|
|
assert_eq!(4, sr.top);
|
|
assert_eq!(19, sr.bottom);
|
|
assert_eq!(0, sr.left);
|
|
assert_eq!(79, sr.right);
|
|
}
|
|
|
|
#[test]
|
|
fn charsets() {
|
|
let mut t = term(80, 24);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Configure G0 as DEC special graphics
|
|
s.next_slice(b"\x1B(0").unwrap();
|
|
s.next_slice(b"`").unwrap(); // Should print diamond character
|
|
|
|
assert_eq!("\u{25c6}", s.handler.terminal.plain_string().unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn alt_screen() {
|
|
let mut t = term(10, 5);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Write to primary screen
|
|
s.next_slice(b"Primary").unwrap();
|
|
assert_eq!(ScreenKey::Primary, s.handler.terminal.screens.active_key);
|
|
|
|
// Switch to alt screen
|
|
s.next_slice(b"\x1B[?1049h").unwrap();
|
|
assert_eq!(ScreenKey::Alternate, s.handler.terminal.screens.active_key);
|
|
|
|
// Write to alt screen
|
|
s.next_slice(b"Alt").unwrap();
|
|
|
|
// Switch back to primary
|
|
s.next_slice(b"\x1B[?1049l").unwrap();
|
|
assert_eq!(ScreenKey::Primary, s.handler.terminal.screens.active_key);
|
|
|
|
assert_eq!("Primary", s.handler.terminal.plain_string().unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn cursor_save_and_restore() {
|
|
let mut t = term(80, 24);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Move cursor to 10,15
|
|
s.next_slice(b"\x1B[10;15H").unwrap();
|
|
assert_eq!(14, s.handler.terminal.screen().cursor.x);
|
|
assert_eq!(9, s.handler.terminal.screen().cursor.y);
|
|
|
|
// Save cursor
|
|
s.next_slice(b"\x1B7").unwrap();
|
|
|
|
// Move cursor elsewhere
|
|
s.next_slice(b"\x1B[1;1H").unwrap();
|
|
assert_eq!(0, s.handler.terminal.screen().cursor.x);
|
|
assert_eq!(0, s.handler.terminal.screen().cursor.y);
|
|
|
|
// Restore cursor
|
|
s.next_slice(b"\x1B8").unwrap();
|
|
assert_eq!(14, s.handler.terminal.screen().cursor.x);
|
|
assert_eq!(9, s.handler.terminal.screen().cursor.y);
|
|
}
|
|
|
|
#[test]
|
|
fn attributes() {
|
|
let mut t = term(80, 24);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Set bold and write text
|
|
s.next_slice(b"\x1B[1mBold\x1B[0m").unwrap();
|
|
|
|
// Verify we can write attributes - just check the string was written
|
|
assert_eq!("Bold", s.handler.terminal.plain_string().unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn decaln_screen_alignment() {
|
|
let mut t = term(10, 3);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Run DECALN
|
|
s.next_slice(b"\x1B#8").unwrap();
|
|
|
|
// Verify entire screen is filled with 'E'
|
|
assert_eq!(
|
|
"EEEEEEEEEE\nEEEEEEEEEE\nEEEEEEEEEE",
|
|
s.handler.terminal.plain_string().unwrap()
|
|
);
|
|
|
|
// Cursor should be at 1,1
|
|
assert_eq!(0, s.handler.terminal.screen().cursor.x);
|
|
assert_eq!(0, s.handler.terminal.screen().cursor.y);
|
|
}
|
|
|
|
#[test]
|
|
fn full_reset() {
|
|
let mut t = term(80, 24);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Make some changes
|
|
s.next_slice(b"Hello").unwrap();
|
|
s.next_slice(b"\x1B[10;20H").unwrap();
|
|
s.next_slice(b"\x1B[5;20r").unwrap(); // Set scroll region
|
|
s.next_slice(b"\x1B[?7l").unwrap(); // Disable wraparound
|
|
|
|
// Full reset
|
|
s.next_slice(b"\x1Bc").unwrap();
|
|
|
|
// Verify reset state
|
|
let t = &*s.handler.terminal;
|
|
assert_eq!(0, t.screen().cursor.x);
|
|
assert_eq!(0, t.screen().cursor.y);
|
|
assert_eq!(0, t.scrolling_region.top);
|
|
assert_eq!(23, t.scrolling_region.bottom);
|
|
assert!(t.modes.get(Mode::Wraparound));
|
|
}
|
|
|
|
#[test]
|
|
fn ignores_query_actions() {
|
|
let mut t = term(80, 24);
|
|
let mut s = t.vt_stream();
|
|
|
|
// These should be ignored without error
|
|
s.next_slice(b"\x1B[c").unwrap(); // Device attributes
|
|
s.next_slice(b"\x1B[5n").unwrap(); // Device status report
|
|
s.next_slice(b"\x1B[6n").unwrap(); // Cursor position report
|
|
|
|
// Terminal should still be functional
|
|
s.next_slice(b"Test").unwrap();
|
|
assert_eq!("Test", s.handler.terminal.plain_string().unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn osc_4_set_and_reset_palette() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Save default color
|
|
let default_color_0 = s.handler.terminal.colors.palette.original[0];
|
|
|
|
// Set color 0 to red
|
|
s.next_slice(b"\x1b]4;0;rgb:ff/00/00\x1b\\").unwrap();
|
|
let p = &s.handler.terminal.colors.palette;
|
|
assert_eq!(0xff, p.current[0].r);
|
|
assert_eq!(0x00, p.current[0].g);
|
|
assert_eq!(0x00, p.current[0].b);
|
|
assert!(p.mask.is_set(0));
|
|
|
|
// Reset color 0
|
|
s.next_slice(b"\x1b]104;0\x1b\\").unwrap();
|
|
let p = &s.handler.terminal.colors.palette;
|
|
assert_eq!(default_color_0, p.current[0]);
|
|
assert!(!p.mask.is_set(0));
|
|
}
|
|
|
|
#[test]
|
|
fn osc_104_reset_all_palette_colors() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Set multiple colors
|
|
s.next_slice(b"\x1b]4;0;rgb:ff/00/00\x1b\\").unwrap();
|
|
s.next_slice(b"\x1b]4;1;rgb:00/ff/00\x1b\\").unwrap();
|
|
s.next_slice(b"\x1b]4;2;rgb:00/00/ff\x1b\\").unwrap();
|
|
let p = &s.handler.terminal.colors.palette;
|
|
assert!(p.mask.is_set(0));
|
|
assert!(p.mask.is_set(1));
|
|
assert!(p.mask.is_set(2));
|
|
|
|
// Reset all palette colors
|
|
s.next_slice(b"\x1b]104\x1b\\").unwrap();
|
|
let p = &s.handler.terminal.colors.palette;
|
|
assert_eq!(p.original[0], p.current[0]);
|
|
assert_eq!(p.original[1], p.current[1]);
|
|
assert_eq!(p.original[2], p.current[2]);
|
|
assert!(!p.mask.is_set(0));
|
|
assert!(!p.mask.is_set(1));
|
|
assert!(!p.mask.is_set(2));
|
|
}
|
|
|
|
#[test]
|
|
fn osc_10_set_and_reset_foreground_color() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Initially unset
|
|
assert!(s.handler.terminal.colors.foreground.get().is_none());
|
|
|
|
// Set foreground to red
|
|
s.next_slice(b"\x1b]10;rgb:ff/00/00\x1b\\").unwrap();
|
|
let fg = s.handler.terminal.colors.foreground.get().unwrap();
|
|
assert_eq!(0xff, fg.r);
|
|
assert_eq!(0x00, fg.g);
|
|
assert_eq!(0x00, fg.b);
|
|
|
|
// Reset foreground
|
|
s.next_slice(b"\x1b]110\x1b\\").unwrap();
|
|
assert!(s.handler.terminal.colors.foreground.get().is_none());
|
|
}
|
|
|
|
#[test]
|
|
fn osc_11_set_and_reset_background_color() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Set background to green
|
|
s.next_slice(b"\x1b]11;rgb:00/ff/00\x1b\\").unwrap();
|
|
let bg = s.handler.terminal.colors.background.get().unwrap();
|
|
assert_eq!(0x00, bg.r);
|
|
assert_eq!(0xff, bg.g);
|
|
assert_eq!(0x00, bg.b);
|
|
|
|
// Reset background
|
|
s.next_slice(b"\x1b]111\x1b\\").unwrap();
|
|
assert!(s.handler.terminal.colors.background.get().is_none());
|
|
}
|
|
|
|
#[test]
|
|
fn osc_12_set_and_reset_cursor_color() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Set cursor to blue
|
|
s.next_slice(b"\x1b]12;rgb:00/00/ff\x1b\\").unwrap();
|
|
let cursor = s.handler.terminal.colors.cursor.get().unwrap();
|
|
assert_eq!(0x00, cursor.r);
|
|
assert_eq!(0x00, cursor.g);
|
|
assert_eq!(0xff, cursor.b);
|
|
|
|
// Reset cursor
|
|
s.next_slice(b"\x1b]112\x1b\\").unwrap();
|
|
// After reset, cursor might be null (using default)
|
|
}
|
|
|
|
#[test]
|
|
fn kitty_color_protocol_set_palette() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Set palette color 5 to magenta using kitty protocol
|
|
s.next_slice(b"\x1b]21;5=rgb:ff/00/ff\x1b\\").unwrap();
|
|
let t = &*s.handler.terminal;
|
|
assert_eq!(0xff, t.colors.palette.current[5].r);
|
|
assert_eq!(0x00, t.colors.palette.current[5].g);
|
|
assert_eq!(0xff, t.colors.palette.current[5].b);
|
|
assert!(t.colors.palette.mask.is_set(5));
|
|
assert!(t.flags.dirty.palette);
|
|
}
|
|
|
|
#[test]
|
|
fn kitty_color_protocol_reset_palette() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Set and then reset palette color
|
|
let original = s.handler.terminal.colors.palette.original[7];
|
|
s.next_slice(b"\x1b]21;7=rgb:aa/bb/cc\x1b\\").unwrap();
|
|
assert!(s.handler.terminal.colors.palette.mask.is_set(7));
|
|
|
|
s.next_slice(b"\x1b]21;7=\x1b\\").unwrap();
|
|
let p = &s.handler.terminal.colors.palette;
|
|
assert_eq!(original, p.current[7]);
|
|
assert!(!p.mask.is_set(7));
|
|
}
|
|
|
|
#[test]
|
|
fn kitty_color_protocol_set_foreground() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Set foreground using kitty protocol
|
|
s.next_slice(b"\x1b]21;foreground=rgb:12/34/56\x1b\\")
|
|
.unwrap();
|
|
let fg = s.handler.terminal.colors.foreground.get().unwrap();
|
|
assert_eq!(0x12, fg.r);
|
|
assert_eq!(0x34, fg.g);
|
|
assert_eq!(0x56, fg.b);
|
|
}
|
|
|
|
#[test]
|
|
fn kitty_color_protocol_set_background() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Set background using kitty protocol
|
|
s.next_slice(b"\x1b]21;background=rgb:78/9a/bc\x1b\\")
|
|
.unwrap();
|
|
let bg = s.handler.terminal.colors.background.get().unwrap();
|
|
assert_eq!(0x78, bg.r);
|
|
assert_eq!(0x9a, bg.g);
|
|
assert_eq!(0xbc, bg.b);
|
|
}
|
|
|
|
#[test]
|
|
fn kitty_color_protocol_set_cursor() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Set cursor using kitty protocol
|
|
s.next_slice(b"\x1b]21;cursor=rgb:de/f0/12\x1b\\").unwrap();
|
|
let cursor = s.handler.terminal.colors.cursor.get().unwrap();
|
|
assert_eq!(0xde, cursor.r);
|
|
assert_eq!(0xf0, cursor.g);
|
|
assert_eq!(0x12, cursor.b);
|
|
}
|
|
|
|
#[test]
|
|
fn kitty_color_protocol_reset_foreground() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Set and reset foreground
|
|
s.next_slice(b"\x1b]21;foreground=rgb:11/22/33\x1b\\")
|
|
.unwrap();
|
|
assert!(s.handler.terminal.colors.foreground.get().is_some());
|
|
|
|
s.next_slice(b"\x1b]21;foreground=\x1b\\").unwrap();
|
|
// After reset, should be unset
|
|
assert!(s.handler.terminal.colors.foreground.get().is_none());
|
|
}
|
|
|
|
#[test]
|
|
fn palette_dirty_flag_set_on_color_change() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Clear dirty flag
|
|
s.handler.terminal.flags.dirty.palette = false;
|
|
|
|
// Setting palette color should set dirty flag
|
|
s.next_slice(b"\x1b]4;0;rgb:ff/00/00\x1b\\").unwrap();
|
|
assert!(s.handler.terminal.flags.dirty.palette);
|
|
|
|
// Clear and test reset
|
|
s.handler.terminal.flags.dirty.palette = false;
|
|
s.next_slice(b"\x1b]104;0\x1b\\").unwrap();
|
|
assert!(s.handler.terminal.flags.dirty.palette);
|
|
|
|
// Clear and test kitty protocol
|
|
s.handler.terminal.flags.dirty.palette = false;
|
|
s.next_slice(b"\x1b]21;1=rgb:00/ff/00\x1b\\").unwrap();
|
|
assert!(s.handler.terminal.flags.dirty.palette);
|
|
}
|
|
|
|
#[test]
|
|
fn semantic_prompt_fresh_line() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
s.next_slice(b"Hello").unwrap();
|
|
s.next_slice(b"\x1b]133;L\x07").unwrap();
|
|
assert_eq!(0, s.handler.terminal.screen().cursor.x);
|
|
assert_eq!(1, s.handler.terminal.screen().cursor.y);
|
|
}
|
|
|
|
#[test]
|
|
fn semantic_prompt_fresh_line_new_prompt() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Write some text and then send OSC 133;A (fresh_line_new_prompt)
|
|
s.next_slice(b"Hello").unwrap();
|
|
s.next_slice(b"\x1b]133;A\x07").unwrap();
|
|
|
|
// Should do a fresh line (carriage return + index)
|
|
assert_eq!(0, s.handler.terminal.screen().cursor.x);
|
|
assert_eq!(1, s.handler.terminal.screen().cursor.y);
|
|
|
|
// Should set cursor semantic_content to prompt
|
|
assert_eq!(
|
|
SemanticContent::Prompt,
|
|
s.handler.terminal.screen().cursor.semantic_content
|
|
);
|
|
|
|
// Test with redraw option
|
|
s.next_slice(b"prompt$ ").unwrap();
|
|
s.next_slice(b"\x1b]133;A;redraw=1\x07").unwrap();
|
|
assert_eq!(Redraw::True, s.handler.terminal.flags.shell_redraws_prompt);
|
|
}
|
|
|
|
#[test]
|
|
fn semantic_prompt_end_of_input_then_start_output() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Write some text and then send OSC 133;A (fresh_line_new_prompt)
|
|
s.next_slice(b"Hello").unwrap();
|
|
s.next_slice(b"\x1b]133;A\x07").unwrap();
|
|
s.next_slice(b"prompt$ ").unwrap();
|
|
s.next_slice(b"\x1b]133;B\x07").unwrap();
|
|
assert_eq!(
|
|
SemanticContent::Input,
|
|
s.handler.terminal.screen().cursor.semantic_content
|
|
);
|
|
s.next_slice(b"\x1b]133;C\x07").unwrap();
|
|
assert_eq!(
|
|
SemanticContent::Output,
|
|
s.handler.terminal.screen().cursor.semantic_content
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn semantic_prompt_prompt_start() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Write some text
|
|
s.next_slice(b"Hello").unwrap();
|
|
|
|
// OSC 133;P marks the start of a prompt (without fresh line behavior)
|
|
s.next_slice(b"\x1b]133;P\x07").unwrap();
|
|
let scr = s.handler.terminal.screen();
|
|
assert_eq!(SemanticContent::Prompt, scr.cursor.semantic_content);
|
|
assert_eq!(5, scr.cursor.x);
|
|
assert_eq!(0, scr.cursor.y);
|
|
}
|
|
|
|
#[test]
|
|
fn semantic_prompt_new_command() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Write some text
|
|
s.next_slice(b"Hello").unwrap();
|
|
s.next_slice(b"\x1b]133;N\x07").unwrap();
|
|
|
|
// Should behave like fresh_line_new_prompt - cursor moves to column 0
|
|
// on next line since we had content
|
|
let scr = s.handler.terminal.screen();
|
|
assert_eq!(0, scr.cursor.x);
|
|
assert_eq!(1, scr.cursor.y);
|
|
assert_eq!(SemanticContent::Prompt, scr.cursor.semantic_content);
|
|
}
|
|
|
|
#[test]
|
|
fn semantic_prompt_new_command_at_column_zero() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// OSC 133;N when already at column 0 should stay on same line
|
|
s.next_slice(b"\x1b]133;N\x07").unwrap();
|
|
let scr = s.handler.terminal.screen();
|
|
assert_eq!(0, scr.cursor.x);
|
|
assert_eq!(0, scr.cursor.y);
|
|
assert_eq!(SemanticContent::Prompt, scr.cursor.semantic_content);
|
|
}
|
|
|
|
#[test]
|
|
fn semantic_prompt_end_prompt_start_input_terminate_eol_clears_on_linefeed() {
|
|
let mut t = term(10, 10);
|
|
let mut s = t.vt_stream();
|
|
|
|
// Set input terminated by EOL
|
|
s.next_slice(b"\x1b]133;I\x07").unwrap();
|
|
assert_eq!(
|
|
SemanticContent::Input,
|
|
s.handler.terminal.screen().cursor.semantic_content
|
|
);
|
|
|
|
// Linefeed should reset semantic content to output
|
|
s.next_slice(b"\n").unwrap();
|
|
assert_eq!(
|
|
SemanticContent::Output,
|
|
s.handler.terminal.screen().cursor.semantic_content
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn stream_csi_w_with_intermediate_but_no_params() {
|
|
// Regression test from AFL++ crash. CSI ? W without
|
|
// parameters caused an out-of-bounds access on input.params[0].
|
|
let mut o = Options::new(80, 24);
|
|
o.max_scrollback = 100;
|
|
let mut t = Terminal::new(o).unwrap();
|
|
let mut s = t.vt_stream();
|
|
|
|
s.next_slice(b"\x1b[?W").unwrap();
|
|
}
|
|
|
|
// ---- Regressions found by the Zig-vs-Rust differential fuzzer
|
|
// (tools/difftest, docs/rewrite/notes/difftest-DF.md). Expected values
|
|
// come from the Zig reference driver.
|
|
|
|
fn screen_row_wrap(t: &Terminal, y: u32) -> bool {
|
|
use crate::point::{Coordinate, Point};
|
|
let pages = &t.screen().pages;
|
|
let pin = pages
|
|
.pin(Point::Screen(Coordinate { x: 0, y }))
|
|
.expect("row exists");
|
|
pin.row_and_cell(pages).expect("row").0.wrap()
|
|
}
|
|
|
|
fn cell_cps(t: &Terminal, row: u32) -> Vec<u32> {
|
|
use crate::point::{Coordinate, Point};
|
|
(0..t.cols)
|
|
.map(|x| {
|
|
t.screen()
|
|
.pages
|
|
.get_cell(Point::Active(Coordinate { x, y: row }))
|
|
.map_or(0, crate::page::Cell::codepoint)
|
|
})
|
|
.collect()
|
|
}
|
|
|
|
#[test]
|
|
fn difftest_invalid_utf8_overlong_swallows_trail_byte() {
|
|
// Zig's SIMD path (utfcpp replace_invalid) emits ONE U+FFFD for an
|
|
// overlong lead plus its continuation byte.
|
|
let mut t = term(10, 2);
|
|
t.vt_stream().next_slice(b"\xc0\xa9").unwrap();
|
|
assert_eq!(1, t.screen().cursor.x);
|
|
assert_eq!(0xFFFD, cell_cps(&t, 0)[0]);
|
|
}
|
|
|
|
#[test]
|
|
fn difftest_invalid_utf8_truncated_then_control() {
|
|
// e4 a9 followed by a non-trail byte: the truncated sequence is a
|
|
// single replacement and the following byte decodes normally.
|
|
let mut t = term(10, 2);
|
|
t.vt_stream().next_slice(b"\xe4\xa9A\xf0\x9f").unwrap();
|
|
let cps = cell_cps(&t, 0);
|
|
assert_eq!(&cps[..2], &[0xFFFD, 'A' as u32]);
|
|
}
|
|
|
|
#[test]
|
|
fn difftest_erase_scrollback_keeps_stale_row_flags() {
|
|
// Zig's eraseRows swaps rows and leaves the stale `wrap` flag in the
|
|
// leftover rows, which is visible once the page regrows.
|
|
let mut t = term(1, 1);
|
|
t.vt_stream().next_slice(b"xt\n\x1b[3Jex").unwrap();
|
|
assert!(screen_row_wrap(&t, 0));
|
|
assert!(!screen_row_wrap(&t, 1));
|
|
}
|
|
|
|
#[test]
|
|
fn difftest_grapheme_wrap_with_margins_moves_prev_cell() {
|
|
// Devanagari conjunct widening the cell at the last column while a
|
|
// left/right margin keeps the wrap from scrolling that cell: Zig moves
|
|
// the grapheme from the original cell pointer (not `up(1)`).
|
|
use crate::point::{Coordinate, Point};
|
|
let mut t = term(20, 8);
|
|
t.vt_stream()
|
|
.next_slice("\x1b[?2027h\x1b[?69h\x1b[;10s\x1b[50;41H\u{915}\u{94d}\u{937}".as_bytes())
|
|
.unwrap();
|
|
let pages = &t.screen().pages;
|
|
let pin = pages.pin(Point::Active(Coordinate { x: 0, y: 7 })).unwrap();
|
|
let (_, cell) = pin.row_and_cell(pages).unwrap();
|
|
assert_eq!(cell.codepoint(), 0x915);
|
|
assert_eq!(crate::page::Wide::Wide, cell.wide());
|
|
assert_eq!(Some(&[0x94d, 0x937][..]), pin.grapheme(pages));
|
|
}
|
|
|
|
/// Upstream (Zig) bug, deliberately NOT replicated: Zig's
|
|
/// `Terminal.print` grapheme path keeps `prev.cell` across a page
|
|
/// reallocation (hyperlink/string capacity growth) and appends the
|
|
/// grapheme into freed memory, silently losing U+FE0F here. Rust
|
|
/// addresses cells by index and keeps it. See difftest-DF.md.
|
|
#[test]
|
|
fn difftest_upstream_uaf_grapheme_survives_page_growth() {
|
|
let mut t = Terminal::new(Options {
|
|
max_scrollback: 1,
|
|
..Options::new(5, 30)
|
|
})
|
|
.unwrap();
|
|
let input = b"\x1b\x5d\x38\x3b\x3b\x6c\x07\x35\x36\x37\x38\x39\x1b\x5b\x38\x65\x5f\x2c\xba\x9f\x87\xb8\x80\xbc\xbb\x1b\x5b\x35\x32\x72\x54\x68\x65\x20\x71\x75\x69\x63\x6b\x20\x62\x72\x6f\x77\x6e\x20\x66\x6f\x78\x1b\x5c\x61\x20\x40\x1b\x5b\x53\x1b\x4b\x30\x31\x32\x33\x34\x35\x36\x37\x31\x53\x1b\x73\x5d\x5b\x32\x6d\x9b\xff\x80\x80\x1b\x5b\x3f\x32\x30\x32\x37\x68\x1b\x5b\x3b\x33\x48\xf0\xc0\x5c\x77\x70\x5e\x6f\x20\x70\xe2\x9d\xa4\xef\xb8\x8f";
|
|
t.vt_stream().next_slice(input).unwrap();
|
|
assert!(t.plain_string().unwrap().contains("\u{2764}\u{fe0f}"));
|
|
}
|
|
}
|