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Diffstat (limited to 'vendor/anstream/src/adapter/wincon.rs')
-rw-r--r-- | vendor/anstream/src/adapter/wincon.rs | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/vendor/anstream/src/adapter/wincon.rs b/vendor/anstream/src/adapter/wincon.rs deleted file mode 100644 index de3da65..0000000 --- a/vendor/anstream/src/adapter/wincon.rs +++ /dev/null @@ -1,320 +0,0 @@ -/// Incrementally convert to wincon calls for non-contiguous data -#[derive(Default, Clone, Debug, PartialEq, Eq)] -pub struct WinconBytes { - parser: anstyle_parse::Parser, - capture: WinconCapture, -} - -impl WinconBytes { - /// Initial state - pub fn new() -> Self { - Default::default() - } - - /// Strip the next segment of data - pub fn extract_next<'s>(&'s mut self, bytes: &'s [u8]) -> WinconBytesIter<'s> { - self.capture.reset(); - self.capture.printable.reserve(bytes.len()); - WinconBytesIter { - bytes, - parser: &mut self.parser, - capture: &mut self.capture, - } - } -} - -/// See [`WinconBytes`] -#[derive(Debug, PartialEq, Eq)] -pub struct WinconBytesIter<'s> { - bytes: &'s [u8], - parser: &'s mut anstyle_parse::Parser, - capture: &'s mut WinconCapture, -} - -impl<'s> Iterator for WinconBytesIter<'s> { - type Item = (anstyle::Style, String); - - #[inline] - fn next(&mut self) -> Option<Self::Item> { - next_bytes(&mut self.bytes, self.parser, self.capture) - } -} - -#[inline] -fn next_bytes( - bytes: &mut &[u8], - parser: &mut anstyle_parse::Parser, - capture: &mut WinconCapture, -) -> Option<(anstyle::Style, String)> { - capture.reset(); - while capture.ready.is_none() { - let byte = if let Some((byte, remainder)) = (*bytes).split_first() { - *bytes = remainder; - *byte - } else { - break; - }; - parser.advance(capture, byte); - } - if capture.printable.is_empty() { - return None; - } - - let style = capture.ready.unwrap_or(capture.style); - Some((style, std::mem::take(&mut capture.printable))) -} - -#[derive(Default, Clone, Debug, PartialEq, Eq)] -struct WinconCapture { - style: anstyle::Style, - printable: String, - ready: Option<anstyle::Style>, -} - -impl WinconCapture { - fn reset(&mut self) { - self.ready = None; - } -} - -impl anstyle_parse::Perform for WinconCapture { - /// Draw a character to the screen and update states. - fn print(&mut self, c: char) { - self.printable.push(c); - } - - /// Execute a C0 or C1 control function. - fn execute(&mut self, byte: u8) { - if byte.is_ascii_whitespace() { - self.printable.push(byte as char); - } - } - - fn csi_dispatch( - &mut self, - params: &anstyle_parse::Params, - _intermediates: &[u8], - ignore: bool, - action: u8, - ) { - if ignore { - return; - } - if action != b'm' { - return; - } - - let mut style = self.style; - // param/value differences are dependent on the escape code - let mut state = State::Normal; - let mut r = None; - let mut g = None; - let mut is_bg = false; - for param in params { - for value in param { - match (state, *value) { - (State::Normal, 0) => { - style = anstyle::Style::default(); - break; - } - (State::Normal, 1) => { - style = style.bold(); - break; - } - (State::Normal, 4) => { - style = style.underline(); - break; - } - (State::Normal, 30..=37) => { - let color = to_ansi_color(value - 30).unwrap(); - style = style.fg_color(Some(color.into())); - break; - } - (State::Normal, 38) => { - is_bg = false; - state = State::PrepareCustomColor; - } - (State::Normal, 39) => { - style = style.fg_color(None); - break; - } - (State::Normal, 40..=47) => { - let color = to_ansi_color(value - 40).unwrap(); - style = style.bg_color(Some(color.into())); - break; - } - (State::Normal, 48) => { - is_bg = true; - state = State::PrepareCustomColor; - } - (State::Normal, 49) => { - style = style.bg_color(None); - break; - } - (State::Normal, 90..=97) => { - let color = to_ansi_color(value - 90).unwrap().bright(true); - style = style.fg_color(Some(color.into())); - break; - } - (State::Normal, 100..=107) => { - let color = to_ansi_color(value - 100).unwrap().bright(true); - style = style.bg_color(Some(color.into())); - break; - } - (State::PrepareCustomColor, 5) => { - state = State::Ansi256; - } - (State::PrepareCustomColor, 2) => { - state = State::Rgb; - r = None; - g = None; - } - (State::Ansi256, n) => { - let color = anstyle::Ansi256Color(n as u8); - if is_bg { - style = style.bg_color(Some(color.into())); - } else { - style = style.fg_color(Some(color.into())); - } - break; - } - (State::Rgb, b) => match (r, g) { - (None, _) => { - r = Some(b); - } - (Some(_), None) => { - g = Some(b); - } - (Some(r), Some(g)) => { - let color = anstyle::RgbColor(r as u8, g as u8, b as u8); - if is_bg { - style = style.bg_color(Some(color.into())); - } else { - style = style.fg_color(Some(color.into())); - } - break; - } - }, - _ => { - break; - } - } - } - } - - if style != self.style && !self.printable.is_empty() { - self.ready = Some(self.style); - } - self.style = style; - } -} - -#[derive(Copy, Clone, PartialEq, Eq, Debug)] -enum State { - Normal, - PrepareCustomColor, - Ansi256, - Rgb, -} - -fn to_ansi_color(digit: u16) -> Option<anstyle::AnsiColor> { - match digit { - 0 => Some(anstyle::AnsiColor::Black), - 1 => Some(anstyle::AnsiColor::Red), - 2 => Some(anstyle::AnsiColor::Green), - 3 => Some(anstyle::AnsiColor::Yellow), - 4 => Some(anstyle::AnsiColor::Blue), - 5 => Some(anstyle::AnsiColor::Magenta), - 6 => Some(anstyle::AnsiColor::Cyan), - 7 => Some(anstyle::AnsiColor::White), - _ => None, - } -} - -#[cfg(test)] -mod test { - use super::*; - use owo_colors::OwoColorize as _; - use proptest::prelude::*; - - #[track_caller] - fn verify(input: &str, expected: Vec<(anstyle::Style, &str)>) { - let expected = expected - .into_iter() - .map(|(style, value)| (style, value.to_owned())) - .collect::<Vec<_>>(); - let mut state = WinconBytes::new(); - let actual = state.extract_next(input.as_bytes()).collect::<Vec<_>>(); - assert_eq!(expected, actual, "{input:?}"); - } - - #[test] - fn start() { - let input = format!("{} world!", "Hello".green().on_red()); - let expected = vec![ - ( - anstyle::AnsiColor::Green.on(anstyle::AnsiColor::Red), - "Hello", - ), - (anstyle::Style::default(), " world!"), - ]; - verify(&input, expected); - } - - #[test] - fn middle() { - let input = format!("Hello {}!", "world".green().on_red()); - let expected = vec![ - (anstyle::Style::default(), "Hello "), - ( - anstyle::AnsiColor::Green.on(anstyle::AnsiColor::Red), - "world", - ), - (anstyle::Style::default(), "!"), - ]; - verify(&input, expected); - } - - #[test] - fn end() { - let input = format!("Hello {}", "world!".green().on_red()); - let expected = vec![ - (anstyle::Style::default(), "Hello "), - ( - anstyle::AnsiColor::Green.on(anstyle::AnsiColor::Red), - "world!", - ), - ]; - verify(&input, expected); - } - - #[test] - fn ansi256_colors() { - // termcolor only supports "brights" via these - let input = format!( - "Hello {}!", - "world".color(owo_colors::XtermColors::UserBrightYellow) - ); - let expected = vec![ - (anstyle::Style::default(), "Hello "), - (anstyle::Ansi256Color(11).on_default(), "world"), - (anstyle::Style::default(), "!"), - ]; - verify(&input, expected); - } - - proptest! { - #[test] - #[cfg_attr(miri, ignore)] // See https://github.com/AltSysrq/proptest/issues/253 - fn wincon_no_escapes(s in "\\PC*") { - let expected = if s.is_empty() { - vec![] - } else { - vec![(anstyle::Style::default(), s.clone())] - }; - let mut state = WinconBytes::new(); - let actual = state.extract_next(s.as_bytes()).collect::<Vec<_>>(); - assert_eq!(expected, actual); - } - } -} |