diff options
Diffstat (limited to 'vendor/anstyle-wincon')
| -rw-r--r-- | vendor/anstyle-wincon/.cargo-checksum.json | 1 | ||||
| -rw-r--r-- | vendor/anstyle-wincon/Cargo.lock | 90 | ||||
| -rw-r--r-- | vendor/anstyle-wincon/Cargo.toml | 94 | ||||
| -rw-r--r-- | vendor/anstyle-wincon/LICENSE-APACHE | 202 | ||||
| -rw-r--r-- | vendor/anstyle-wincon/LICENSE-MIT | 19 | ||||
| -rw-r--r-- | vendor/anstyle-wincon/README.md | 30 | ||||
| -rw-r--r-- | vendor/anstyle-wincon/examples/dump-wincon.rs | 139 | ||||
| -rw-r--r-- | vendor/anstyle-wincon/examples/set-wincon.rs | 58 | ||||
| -rw-r--r-- | vendor/anstyle-wincon/src/ansi.rs | 25 | ||||
| -rw-r--r-- | vendor/anstyle-wincon/src/lib.rs | 18 | ||||
| -rw-r--r-- | vendor/anstyle-wincon/src/stream.rs | 178 | ||||
| -rw-r--r-- | vendor/anstyle-wincon/src/windows.rs | 263 |
12 files changed, 1117 insertions, 0 deletions
diff --git a/vendor/anstyle-wincon/.cargo-checksum.json b/vendor/anstyle-wincon/.cargo-checksum.json new file mode 100644 index 0000000..63712e8 --- /dev/null +++ b/vendor/anstyle-wincon/.cargo-checksum.json @@ -0,0 +1 @@ +{"files":{"Cargo.lock":"3cc0f5705ebb0bb446d6f88f71832d2db70bee8c78a545343a755e2a969212a3","Cargo.toml":"5a090b294286cb22bed379e818f8657da219f62fe0e1e8eb21e91aaaf875c139","LICENSE-APACHE":"c6596eb7be8581c18be736c846fb9173b69eccf6ef94c5135893ec56bd92ba08","LICENSE-MIT":"73b0d84e4b954ce904a00043379767ae2a5f8d4f40564639cee230f639fe4dae","README.md":"513a578c6c2ea39a811e2038358e512cbc0c709e3a7c18303871ec2c52ebbeec","examples/dump-wincon.rs":"bd0ffadd14eed711fc74d64caff5ce98bb5c5b3f0b313b54ac759b5a6c6a289b","examples/set-wincon.rs":"b8bc444537449bf334a1e26dd010986c16cb260567f87ae9597fc869c936fe6a","src/ansi.rs":"1b0166d064fe261bc012acca2f3ff442703a774e5fa4b8e96f63dce87b7e73d1","src/lib.rs":"4b4415a0684901bab712dbe94aec960792760aa1db5505adacfdc43db2cd93a7","src/stream.rs":"afdbd6e314127bd412e81894a857cb95fe3140e2b994e17e4e5580ef113a4159","src/windows.rs":"e4aeae1b32f6348b6b9c54e0cd54d9a3c08c6f250c7313fcaa59e3d8a8f51c97"},"package":"1cd54b81ec8d6180e24654d0b371ad22fc3dd083b6ff8ba325b72e00c87660a7"}
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ReleaseDate +""" +search = "<!-- next-header -->" + +[[package.metadata.release.pre-release-replacements]] +exactly = 1 +file = "CHANGELOG.md" +replace = """ +<!-- next-url --> +[Unreleased]: https://github.com/rust-cli/anstyle/compare/{{tag_name}}...HEAD""" +search = "<!-- next-url -->" + +[dependencies.anstyle] +version = "1.0.0" + +[dev-dependencies.lexopt] +version = "0.3.0" + +[target."cfg(windows)".dependencies.windows-sys] +version = "0.52.0" +features = [ + "Win32_System_Console", + "Win32_Foundation", +] diff --git a/vendor/anstyle-wincon/LICENSE-APACHE b/vendor/anstyle-wincon/LICENSE-APACHE new file mode 100644 index 0000000..8f71f43 --- /dev/null +++ b/vendor/anstyle-wincon/LICENSE-APACHE @@ -0,0 +1,202 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/anstyle-wincon/README.md b/vendor/anstyle-wincon/README.md new file mode 100644 index 0000000..7df0db5 --- /dev/null +++ b/vendor/anstyle-wincon/README.md @@ -0,0 +1,30 @@ +# anstyle-wincon + +> Styling legacy Windows terminals + +[][Documentation] + +[](https://crates.io/crates/anstyle-wincon) + +## License + +Licensed under either of + + * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0) + * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT) + +at your option. + +### Contribution + +Unless you explicitly state otherwise, any contribution intentionally +submitted for inclusion in the work by you, as defined in the Apache-2.0 +license, shall be dual licensed as above, without any additional terms or +conditions. + +### Special Thanks + +[burntsushi](https://github.com/burntsushi) for [termcolor](https://github.com/burntsushi/termcolor) as I don't know Windows either :) + +[Crates.io]: https://crates.io/crates/anstyle-wincon +[Documentation]: https://docs.rs/anstyle-wincon diff --git a/vendor/anstyle-wincon/examples/dump-wincon.rs b/vendor/anstyle-wincon/examples/dump-wincon.rs new file mode 100644 index 0000000..bb80bf4 --- /dev/null +++ b/vendor/anstyle-wincon/examples/dump-wincon.rs @@ -0,0 +1,139 @@ +use anstyle_wincon::WinconStream as _; + +fn main() -> Result<(), lexopt::Error> { + let args = Args::parse()?; + let stdout = std::io::stdout(); + let mut stdout = stdout.lock(); + + for fixed in 0..16 { + let style = style(fixed, args.layer, args.effects); + let _ = print_number(&mut stdout, fixed, style); + if fixed == 7 || fixed == 15 { + let _ = stdout.write_colored(None, None, &b"\n"[..]); + } + } + + for r in 0..6 { + let _ = stdout.write_colored(None, None, &b"\n"[..]); + for g in 0..6 { + for b in 0..6 { + let fixed = r * 36 + g * 6 + b + 16; + let style = style(fixed, args.layer, args.effects); + let _ = print_number(&mut stdout, fixed, style); + } + let _ = stdout.write_colored(None, None, &b"\n"[..]); + } + } + + for c in 0..24 { + if 0 == c % 8 { + let _ = stdout.write_colored(None, None, &b"\n"[..]); + } + let fixed = 232 + c; + let style = style(fixed, args.layer, args.effects); + let _ = print_number(&mut stdout, fixed, style); + } + + Ok(()) +} + +fn style(fixed: u8, layer: Layer, effects: anstyle::Effects) -> anstyle::Style { + let color = anstyle::Ansi256Color(fixed).into(); + (match layer { + Layer::Fg => anstyle::Style::new().fg_color(Some(color)), + Layer::Bg => anstyle::Style::new().bg_color(Some(color)), + Layer::Underline => anstyle::Style::new().underline_color(Some(color)), + }) | effects +} + +fn print_number( + stdout: &mut std::io::StdoutLock<'static>, + fixed: u8, + style: anstyle::Style, +) -> std::io::Result<()> { + let fg = style.get_fg_color().and_then(|c| match c { + anstyle::Color::Ansi(c) => Some(c), + anstyle::Color::Ansi256(c) => c.into_ansi(), + anstyle::Color::Rgb(_) => None, + }); + let bg = style.get_bg_color().and_then(|c| match c { + anstyle::Color::Ansi(c) => Some(c), + anstyle::Color::Ansi256(c) => c.into_ansi(), + anstyle::Color::Rgb(_) => None, + }); + + stdout + .write_colored(fg, bg, format!("{:>4}", fixed).as_bytes()) + .map(|_| ()) +} + +#[derive(Default)] +struct Args { + effects: anstyle::Effects, + layer: Layer, +} + +#[derive(Copy, Clone, Default)] +enum Layer { + #[default] + Fg, + Bg, + Underline, +} + +impl Args { + fn parse() -> Result<Self, lexopt::Error> { + use lexopt::prelude::*; + + let mut res = Args::default(); + + let mut args = lexopt::Parser::from_env(); + while let Some(arg) = args.next()? { + match arg { + Long("layer") => { + res.layer = args.value()?.parse_with(|s| match s { + "fg" => Ok(Layer::Fg), + "bg" => Ok(Layer::Bg), + "underline" => Ok(Layer::Underline), + _ => Err("expected values fg, bg, underline"), + })?; + } + Long("effect") => { + const EFFECTS: [(&str, anstyle::Effects); 12] = [ + ("bold", anstyle::Effects::BOLD), + ("dimmed", anstyle::Effects::DIMMED), + ("italic", anstyle::Effects::ITALIC), + ("underline", anstyle::Effects::UNDERLINE), + ("double_underline", anstyle::Effects::UNDERLINE), + ("curly_underline", anstyle::Effects::CURLY_UNDERLINE), + ("dotted_underline", anstyle::Effects::DOTTED_UNDERLINE), + ("dashed_underline", anstyle::Effects::DASHED_UNDERLINE), + ("blink", anstyle::Effects::BLINK), + ("invert", anstyle::Effects::INVERT), + ("hidden", anstyle::Effects::HIDDEN), + ("strikethrough", anstyle::Effects::STRIKETHROUGH), + ]; + let effect = args.value()?.parse_with(|s| { + EFFECTS + .into_iter() + .find(|(name, _)| *name == s) + .map(|(_, effect)| effect) + .ok_or_else(|| { + format!( + "expected one of {}", + EFFECTS + .into_iter() + .map(|(n, _)| n) + .collect::<Vec<_>>() + .join(", ") + ) + }) + })?; + res.effects = res.effects.insert(effect); + } + _ => return Err(arg.unexpected()), + } + } + Ok(res) + } +} diff --git a/vendor/anstyle-wincon/examples/set-wincon.rs b/vendor/anstyle-wincon/examples/set-wincon.rs new file mode 100644 index 0000000..6febb0a --- /dev/null +++ b/vendor/anstyle-wincon/examples/set-wincon.rs @@ -0,0 +1,58 @@ +#![cfg_attr(not(windows), allow(dead_code))] + +#[cfg(not(windows))] +fn main() { + panic!("unsupported"); +} + +#[cfg(windows)] +fn main() -> Result<(), lexopt::Error> { + use anstyle_wincon::WinconStream as _; + + let args = Args::parse()?; + let stdout = std::io::stdout(); + let mut stdout = stdout.lock(); + + let fg = args.fg.and_then(|c| c.into_ansi()); + let bg = args.bg.and_then(|c| c.into_ansi()); + + let _ = stdout.write_colored(fg, bg, "".as_bytes()); + + std::mem::forget(stdout); + + Ok(()) +} + +#[derive(Default)] +struct Args { + fg: Option<anstyle::Ansi256Color>, + bg: Option<anstyle::Ansi256Color>, +} + +impl Args { + fn parse() -> Result<Self, lexopt::Error> { + use lexopt::prelude::*; + + let mut res = Args::default(); + + let mut args = lexopt::Parser::from_env(); + while let Some(arg) = args.next()? { + match arg { + Long("fg") => { + res.fg = Some( + args.value()? + .parse_with(|s| s.parse::<u8>().map(anstyle::Ansi256Color))?, + ); + } + Long("bg") => { + res.fg = Some( + args.value()? + .parse_with(|s| s.parse::<u8>().map(anstyle::Ansi256Color))?, + ); + } + _ => return Err(arg.unexpected()), + } + } + Ok(res) + } +} diff --git a/vendor/anstyle-wincon/src/ansi.rs b/vendor/anstyle-wincon/src/ansi.rs new file mode 100644 index 0000000..6ac7193 --- /dev/null +++ b/vendor/anstyle-wincon/src/ansi.rs @@ -0,0 +1,25 @@ +//! Low-level ANSI-styling + +/// Write ANSI colored text to the stream +pub fn write_colored<S: std::io::Write>( + stream: &mut S, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], +) -> std::io::Result<usize> { + let non_default = fg.is_some() || bg.is_some(); + + if non_default { + if let Some(fg) = fg { + write!(stream, "{}", fg.render_fg())?; + } + if let Some(bg) = bg { + write!(stream, "{}", bg.render_bg())?; + } + } + let written = stream.write(data)?; + if non_default { + write!(stream, "{}", anstyle::Reset.render())?; + } + Ok(written) +} diff --git a/vendor/anstyle-wincon/src/lib.rs b/vendor/anstyle-wincon/src/lib.rs new file mode 100644 index 0000000..e04fab6 --- /dev/null +++ b/vendor/anstyle-wincon/src/lib.rs @@ -0,0 +1,18 @@ +//! Styling legacy Windows terminals +//! +//! See [`WinconStream`] +//! +//! This fills a similar role as [`winapi-util`](https://crates.io/crates/winapi-util) does for +//! [`termcolor`](https://crates.io/crates/termcolor) with the differences +//! - Uses `windows-sys` rather than `winapi` +//! - Uses [`anstyle`](https://crates.io/crates/termcolor) rather than defining its own types +//! - More focused, smaller + +#![cfg_attr(docsrs, feature(doc_auto_cfg))] + +pub mod ansi; +mod stream; +#[cfg(windows)] +pub mod windows; + +pub use stream::WinconStream; diff --git a/vendor/anstyle-wincon/src/stream.rs b/vendor/anstyle-wincon/src/stream.rs new file mode 100644 index 0000000..9f10108 --- /dev/null +++ b/vendor/anstyle-wincon/src/stream.rs @@ -0,0 +1,178 @@ +/// Extend `std::io::Write` with wincon styling +pub trait WinconStream { + /// Write colored text to the stream + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize>; +} + +impl WinconStream for Box<dyn std::io::Write> { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + crate::ansi::write_colored(self, fg, bg, data) + } +} + +impl WinconStream for &'_ mut Box<dyn std::io::Write> { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + (**self).write_colored(fg, bg, data) + } +} + +impl WinconStream for std::fs::File { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + crate::ansi::write_colored(self, fg, bg, data) + } +} + +impl WinconStream for &'_ mut std::fs::File { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + (**self).write_colored(fg, bg, data) + } +} + +impl WinconStream for Vec<u8> { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + crate::ansi::write_colored(self, fg, bg, data) + } +} + +impl WinconStream for &'_ mut Vec<u8> { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + (**self).write_colored(fg, bg, data) + } +} + +impl WinconStream for std::io::Stdout { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + // Ensure exclusive access + self.lock().write_colored(fg, bg, data) + } +} + +impl WinconStream for std::io::Stderr { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + // Ensure exclusive access + self.lock().write_colored(fg, bg, data) + } +} + +#[cfg(not(windows))] +mod platform { + use super::*; + + impl WinconStream for std::io::StdoutLock<'_> { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + crate::ansi::write_colored(self, fg, bg, data) + } + } + + impl WinconStream for std::io::StderrLock<'_> { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + crate::ansi::write_colored(self, fg, bg, data) + } + } +} + +#[cfg(windows)] +mod platform { + use super::*; + + impl WinconStream for std::io::StdoutLock<'_> { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + let initial = crate::windows::stdout_initial_colors(); + crate::windows::write_colored(self, fg, bg, data, initial) + } + } + + impl WinconStream for std::io::StderrLock<'_> { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + let initial = crate::windows::stderr_initial_colors(); + crate::windows::write_colored(self, fg, bg, data, initial) + } + } +} + +impl WinconStream for &'_ mut std::io::StdoutLock<'_> { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + (**self).write_colored(fg, bg, data) + } +} + +impl WinconStream for &'_ mut std::io::StderrLock<'_> { + fn write_colored( + &mut self, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + ) -> std::io::Result<usize> { + (**self).write_colored(fg, bg, data) + } +} diff --git a/vendor/anstyle-wincon/src/windows.rs b/vendor/anstyle-wincon/src/windows.rs new file mode 100644 index 0000000..bf1cf56 --- /dev/null +++ b/vendor/anstyle-wincon/src/windows.rs @@ -0,0 +1,263 @@ +//! Low-level wincon-styling + +use std::os::windows::io::AsHandle; +use std::os::windows::io::AsRawHandle; + +type StdioColorResult = std::io::Result<(anstyle::AnsiColor, anstyle::AnsiColor)>; +type StdioColorInnerResult = Result<(anstyle::AnsiColor, anstyle::AnsiColor), inner::IoError>; + +/// Cached [`get_colors`] call for [`std::io::stdout`] +pub fn stdout_initial_colors() -> StdioColorResult { + static INITIAL: std::sync::OnceLock<StdioColorInnerResult> = std::sync::OnceLock::new(); + INITIAL + .get_or_init(|| get_colors_(&std::io::stdout())) + .clone() + .map_err(Into::into) +} + +/// Cached [`get_colors`] call for [`std::io::stderr`] +pub fn stderr_initial_colors() -> StdioColorResult { + static INITIAL: std::sync::OnceLock<StdioColorInnerResult> = std::sync::OnceLock::new(); + INITIAL + .get_or_init(|| get_colors_(&std::io::stderr())) + .clone() + .map_err(Into::into) +} + +/// Apply colors to future writes +/// +/// **Note:** Make sure any buffers are first flushed or else these colors will apply +pub fn set_colors<S: AsHandle>( + stream: &mut S, + fg: anstyle::AnsiColor, + bg: anstyle::AnsiColor, +) -> std::io::Result<()> { + set_colors_(stream, fg, bg).map_err(Into::into) +} + +fn set_colors_<S: AsHandle>( + stream: &mut S, + fg: anstyle::AnsiColor, + bg: anstyle::AnsiColor, +) -> Result<(), inner::IoError> { + let handle = stream.as_handle(); + let handle = handle.as_raw_handle(); + let attributes = inner::set_colors(fg, bg); + inner::set_console_text_attributes(handle, attributes) +} + +/// Get the colors currently active on the console +pub fn get_colors<S: AsHandle>(stream: &S) -> StdioColorResult { + get_colors_(stream).map_err(Into::into) +} + +fn get_colors_<S: AsHandle>(stream: &S) -> StdioColorInnerResult { + let handle = stream.as_handle(); + let handle = handle.as_raw_handle(); + let info = inner::get_screen_buffer_info(handle)?; + let (fg, bg) = inner::get_colors(&info); + Ok((fg, bg)) +} + +pub(crate) fn write_colored<S: AsHandle + std::io::Write>( + stream: &mut S, + fg: Option<anstyle::AnsiColor>, + bg: Option<anstyle::AnsiColor>, + data: &[u8], + initial: StdioColorResult, +) -> std::io::Result<usize> { + let (initial_fg, initial_bg) = initial?; + let non_default = fg.is_some() || bg.is_some(); + + if non_default { + let fg = fg.unwrap_or(initial_fg); + let bg = bg.unwrap_or(initial_bg); + // Ensure everything is written with the last set of colors before applying the next set + stream.flush()?; + set_colors(stream, fg, bg)?; + } + let written = stream.write(data)?; + if non_default { + // Ensure everything is written with the last set of colors before applying the next set + stream.flush()?; + set_colors(stream, initial_fg, initial_bg)?; + } + Ok(written) +} + +mod inner { + use windows_sys::Win32::System::Console::CONSOLE_CHARACTER_ATTRIBUTES; + use windows_sys::Win32::System::Console::CONSOLE_SCREEN_BUFFER_INFO; + use windows_sys::Win32::System::Console::FOREGROUND_BLUE; + use windows_sys::Win32::System::Console::FOREGROUND_GREEN; + use windows_sys::Win32::System::Console::FOREGROUND_INTENSITY; + use windows_sys::Win32::System::Console::FOREGROUND_RED; + + use std::os::windows::io::RawHandle; + + const FOREGROUND_CYAN: CONSOLE_CHARACTER_ATTRIBUTES = FOREGROUND_BLUE | FOREGROUND_GREEN; + const FOREGROUND_MAGENTA: CONSOLE_CHARACTER_ATTRIBUTES = FOREGROUND_BLUE | FOREGROUND_RED; + const FOREGROUND_YELLOW: CONSOLE_CHARACTER_ATTRIBUTES = FOREGROUND_GREEN | FOREGROUND_RED; + const FOREGROUND_WHITE: CONSOLE_CHARACTER_ATTRIBUTES = + FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED; + + #[derive(Copy, Clone, Debug)] + pub(crate) enum IoError { + BrokenPipe, + RawOs(i32), + } + + impl From<IoError> for std::io::Error { + fn from(io: IoError) -> Self { + match io { + IoError::BrokenPipe => { + std::io::Error::new(std::io::ErrorKind::BrokenPipe, "console is detached") + } + IoError::RawOs(code) => std::io::Error::from_raw_os_error(code), + } + } + } + + impl IoError { + fn last_os_error() -> Self { + Self::RawOs(std::io::Error::last_os_error().raw_os_error().unwrap()) + } + } + + pub(crate) fn get_screen_buffer_info( + handle: RawHandle, + ) -> Result<CONSOLE_SCREEN_BUFFER_INFO, IoError> { + unsafe { + let handle = std::mem::transmute(handle); + if handle == 0 { + return Err(IoError::BrokenPipe); + } + + let mut info: CONSOLE_SCREEN_BUFFER_INFO = std::mem::zeroed(); + if windows_sys::Win32::System::Console::GetConsoleScreenBufferInfo(handle, &mut info) + != 0 + { + Ok(info) + } else { + Err(IoError::last_os_error()) + } + } + } + + pub(crate) fn set_console_text_attributes( + handle: RawHandle, + attributes: CONSOLE_CHARACTER_ATTRIBUTES, + ) -> Result<(), IoError> { + unsafe { + let handle = std::mem::transmute(handle); + if handle == 0 { + return Err(IoError::BrokenPipe); + } + + if windows_sys::Win32::System::Console::SetConsoleTextAttribute(handle, attributes) != 0 + { + Ok(()) + } else { + Err(IoError::last_os_error()) + } + } + } + + pub(crate) fn get_colors( + info: &CONSOLE_SCREEN_BUFFER_INFO, + ) -> (anstyle::AnsiColor, anstyle::AnsiColor) { + let attributes = info.wAttributes; + let bg = from_nibble(attributes >> 4); + let fg = from_nibble(attributes); + (fg, bg) + } + + pub(crate) fn set_colors( + fg: anstyle::AnsiColor, + bg: anstyle::AnsiColor, + ) -> CONSOLE_CHARACTER_ATTRIBUTES { + to_nibble(bg) << 4 | to_nibble(fg) + } + + fn from_nibble(color: CONSOLE_CHARACTER_ATTRIBUTES) -> anstyle::AnsiColor { + if color & FOREGROUND_WHITE == FOREGROUND_WHITE { + // 3 bits high + anstyle::AnsiColor::White + } else if color & FOREGROUND_CYAN == FOREGROUND_CYAN { + // 2 bits high + anstyle::AnsiColor::Cyan + } else if color & FOREGROUND_YELLOW == FOREGROUND_YELLOW { + // 2 bits high + anstyle::AnsiColor::Yellow + } else if color & FOREGROUND_MAGENTA == FOREGROUND_MAGENTA { + // 2 bits high + anstyle::AnsiColor::Magenta + } else if color & FOREGROUND_RED == FOREGROUND_RED { + // 1 bit high + anstyle::AnsiColor::Red + } else if color & FOREGROUND_GREEN == FOREGROUND_GREEN { + // 1 bit high + anstyle::AnsiColor::Green + } else if color & FOREGROUND_BLUE == FOREGROUND_BLUE { + // 1 bit high + anstyle::AnsiColor::Blue + } else { + // 0 bits high + anstyle::AnsiColor::Black + } + .bright(color & FOREGROUND_INTENSITY == FOREGROUND_INTENSITY) + } + + fn to_nibble(color: anstyle::AnsiColor) -> CONSOLE_CHARACTER_ATTRIBUTES { + let mut attributes = 0; + attributes |= match color.bright(false) { + anstyle::AnsiColor::Black => 0, + anstyle::AnsiColor::Red => FOREGROUND_RED, + anstyle::AnsiColor::Green => FOREGROUND_GREEN, + anstyle::AnsiColor::Yellow => FOREGROUND_YELLOW, + anstyle::AnsiColor::Blue => FOREGROUND_BLUE, + anstyle::AnsiColor::Magenta => FOREGROUND_MAGENTA, + anstyle::AnsiColor::Cyan => FOREGROUND_CYAN, + anstyle::AnsiColor::White => FOREGROUND_WHITE, + anstyle::AnsiColor::BrightBlack + | anstyle::AnsiColor::BrightRed + | anstyle::AnsiColor::BrightGreen + | anstyle::AnsiColor::BrightYellow + | anstyle::AnsiColor::BrightBlue + | anstyle::AnsiColor::BrightMagenta + | anstyle::AnsiColor::BrightCyan + | anstyle::AnsiColor::BrightWhite => unreachable!("brights were toggled off"), + }; + if color.is_bright() { + attributes |= FOREGROUND_INTENSITY; + } + attributes + } + + #[test] + fn to_from_nibble() { + const COLORS: [anstyle::AnsiColor; 16] = [ + anstyle::AnsiColor::Black, + anstyle::AnsiColor::Red, + anstyle::AnsiColor::Green, + anstyle::AnsiColor::Yellow, + anstyle::AnsiColor::Blue, + anstyle::AnsiColor::Magenta, + anstyle::AnsiColor::Cyan, + anstyle::AnsiColor::White, + anstyle::AnsiColor::BrightBlack, + anstyle::AnsiColor::BrightRed, + anstyle::AnsiColor::BrightGreen, + anstyle::AnsiColor::BrightYellow, + anstyle::AnsiColor::BrightBlue, + anstyle::AnsiColor::BrightMagenta, + anstyle::AnsiColor::BrightCyan, + anstyle::AnsiColor::BrightWhite, + ]; + for expected in COLORS { + let nibble = to_nibble(expected); + let actual = from_nibble(nibble); + assert_eq!(expected, actual, "Intermediate: {}", nibble); + } + } +} |