Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 392 insertions, 0 deletions

diff --git a/vendor/term/src/lib.rs b/vendor/term/src/lib.rs
new file mode 100644
index 000000000..d23d873ca
--- /dev/null
+++ b/vendor/term/src/lib.rs
@@ -0,0 +1,392 @@
+// Copyright 2013-2019 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! Terminal formatting library.
+//!
+//! This crate provides the `Terminal` trait, which abstracts over an [ANSI
+//! Terminal][ansi] to provide color printing, among other things. There are two
+//! implementations, the `TerminfoTerminal`, which uses control characters from
+//! a [terminfo][ti] database, and `WinConsole`, which uses the [Win32 Console
+//! API][win].
+//!
+//! # Usage
+//!
+//! This crate is [on crates.io](https://crates.io/crates/term) and can be
+//! used by adding `term` to the dependencies in your project's `Cargo.toml`.
+//!
+//! ```toml
+//! [dependencies]
+//!
+//! term = "*"
+//! ```
+//!
+//! and this to your crate root:
+//!
+//! ```rust
+//! extern crate term;
+//! ```
+//!
+//! # Examples
+//!
+//! ```no_run
+//! extern crate term;
+//! use std::io::prelude::*;
+//!
+//! fn main() {
+//!     let mut t = term::stdout().unwrap();
+//!
+//!     t.fg(term::color::GREEN).unwrap();
+//!     write!(t, "hello, ").unwrap();
+//!
+//!     t.fg(term::color::RED).unwrap();
+//!     writeln!(t, "world!").unwrap();
+//!
+//!     t.reset().unwrap();
+//! }
+//! ```
+//!
+//! [ansi]: https://en.wikipedia.org/wiki/ANSI_escape_code
+//! [win]: http://msdn.microsoft.com/en-us/library/windows/desktop/ms682010%28v=vs.85%29.aspx
+//! [ti]: https://en.wikipedia.org/wiki/Terminfo
+
+#![doc(
+    html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
+    html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
+    html_root_url = "https://stebalien.github.io/doc/term/term/",
+    test(attr(deny(warnings)))
+)]
+#![deny(missing_docs)]
+#![cfg_attr(test, deny(warnings))]
+#![allow(clippy::redundant_field_names)]
+
+use std::io::prelude::*;
+
+pub use crate::terminfo::TerminfoTerminal;
+#[cfg(windows)]
+pub use win::{WinConsole, WinConsoleInfo};
+
+use std::io::{self, Stderr, Stdout};
+
+pub mod terminfo;
+
+#[cfg(windows)]
+mod win;
+
+/// Alias for stdout terminals.
+pub type StdoutTerminal = dyn Terminal<Output = Stdout> + Send;
+/// Alias for stderr terminals.
+pub type StderrTerminal = dyn Terminal<Output = Stderr> + Send;
+
+#[cfg(not(windows))]
+/// Return a Terminal wrapping stdout, or None if a terminal couldn't be
+/// opened.
+pub fn stdout() -> Option<Box<StdoutTerminal>> {
+    TerminfoTerminal::new(io::stdout()).map(|t| Box::new(t) as Box<StdoutTerminal>)
+}
+
+#[cfg(windows)]
+/// Return a Terminal wrapping stdout, or None if a terminal couldn't be
+/// opened.
+pub fn stdout() -> Option<Box<StdoutTerminal>> {
+    TerminfoTerminal::new(io::stdout())
+        .map(|t| Box::new(t) as Box<StdoutTerminal>)
+        .or_else(|| {
+            WinConsole::new(io::stdout())
+                .ok()
+                .map(|t| Box::new(t) as Box<StdoutTerminal>)
+        })
+}
+
+#[cfg(not(windows))]
+/// Return a Terminal wrapping stderr, or None if a terminal couldn't be
+/// opened.
+pub fn stderr() -> Option<Box<StderrTerminal>> {
+    TerminfoTerminal::new(io::stderr()).map(|t| Box::new(t) as Box<StderrTerminal>)
+}
+
+#[cfg(windows)]
+/// Return a Terminal wrapping stderr, or None if a terminal couldn't be
+/// opened.
+pub fn stderr() -> Option<Box<StderrTerminal>> {
+    TerminfoTerminal::new(io::stderr())
+        .map(|t| Box::new(t) as Box<StderrTerminal>)
+        .or_else(|| {
+            WinConsole::new(io::stderr())
+                .ok()
+                .map(|t| Box::new(t) as Box<StderrTerminal>)
+        })
+}
+
+/// Terminal color definitions
+#[allow(missing_docs)]
+pub mod color {
+    /// Number for a terminal color
+    pub type Color = u32;
+
+    pub const BLACK: Color = 0;
+    pub const RED: Color = 1;
+    pub const GREEN: Color = 2;
+    pub const YELLOW: Color = 3;
+    pub const BLUE: Color = 4;
+    pub const MAGENTA: Color = 5;
+    pub const CYAN: Color = 6;
+    pub const WHITE: Color = 7;
+
+    pub const BRIGHT_BLACK: Color = 8;
+    pub const BRIGHT_RED: Color = 9;
+    pub const BRIGHT_GREEN: Color = 10;
+    pub const BRIGHT_YELLOW: Color = 11;
+    pub const BRIGHT_BLUE: Color = 12;
+    pub const BRIGHT_MAGENTA: Color = 13;
+    pub const BRIGHT_CYAN: Color = 14;
+    pub const BRIGHT_WHITE: Color = 15;
+}
+
+/// Terminal attributes for use with term.attr().
+///
+/// Most attributes can only be turned on and must be turned off with term.reset().
+/// The ones that can be turned off explicitly take a boolean value.
+/// Color is also represented as an attribute for convenience.
+#[derive(Debug, PartialEq, Hash, Eq, Copy, Clone)]
+pub enum Attr {
+    /// Bold (or possibly bright) mode
+    Bold,
+    /// Dim mode, also called faint or half-bright. Often not supported
+    Dim,
+    /// Italics mode. Often not supported
+    Italic(bool),
+    /// Underline mode
+    Underline(bool),
+    /// Blink mode
+    Blink,
+    /// Standout mode. Often implemented as Reverse, sometimes coupled with Bold
+    Standout(bool),
+    /// Reverse mode, inverts the foreground and background colors
+    Reverse,
+    /// Secure mode, also called invis mode. Hides the printed text
+    Secure,
+    /// Convenience attribute to set the foreground color
+    ForegroundColor(color::Color),
+    /// Convenience attribute to set the background color
+    BackgroundColor(color::Color),
+}
+
+/// An error arising from interacting with the terminal.
+#[derive(Debug)]
+pub enum Error {
+    /// Indicates an error from any underlying IO
+    Io(io::Error),
+    /// Indicates an error during terminfo parsing
+    TerminfoParsing(terminfo::Error),
+    /// Indicates an error expanding a parameterized string from the terminfo database
+    ParameterizedExpansion(terminfo::parm::Error),
+    /// Indicates that the terminal does not support the requested operation.
+    NotSupported,
+    /// Indicates that the `TERM` environment variable was unset, and thus we were unable to detect
+    /// which terminal we should be using.
+    TermUnset,
+    /// Indicates that we were unable to find a terminfo entry for the requested terminal.
+    TerminfoEntryNotFound,
+    /// Indicates that the cursor could not be moved to the requested position.
+    CursorDestinationInvalid,
+    /// Indicates that the terminal does not support displaying the requested color.
+    ///
+    /// This is like `NotSupported`, but more specific.
+    ColorOutOfRange,
+    #[doc(hidden)]
+    /// Please don't match against this - if you do, we can't promise we won't break your crate
+    /// with a semver-compliant version bump.
+    __Nonexhaustive,
+}
+
+// manually implemented because std::io::Error does not implement Eq/PartialEq
+impl std::cmp::PartialEq for Error {
+    fn eq(&self, other: &Error) -> bool {
+        use crate::Error::*;
+        match *self {
+            Io(_) => false,
+            TerminfoParsing(ref inner1) => match *other {
+                TerminfoParsing(ref inner2) => inner1 == inner2,
+                _ => false,
+            },
+            ParameterizedExpansion(ref inner1) => match *other {
+                ParameterizedExpansion(ref inner2) => inner1 == inner2,
+                _ => false,
+            },
+            NotSupported => match *other {
+                NotSupported => true,
+                _ => false,
+            },
+            TermUnset => match *other {
+                TermUnset => true,
+                _ => false,
+            },
+            TerminfoEntryNotFound => match *other {
+                TerminfoEntryNotFound => true,
+                _ => false,
+            },
+            CursorDestinationInvalid => match *other {
+                CursorDestinationInvalid => true,
+                _ => false,
+            },
+            ColorOutOfRange => match *other {
+                ColorOutOfRange => true,
+                _ => false,
+            },
+            __Nonexhaustive => match *other {
+                __Nonexhaustive => true,
+                _ => false,
+            },
+        }
+    }
+}
+
+/// The canonical `Result` type using this crate's Error type.
+pub type Result<T> = std::result::Result<T, Error>;
+
+impl std::fmt::Display for Error {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        use crate::Error::*;
+        match *self {
+            Io(ref io) => io.fmt(f),
+            TerminfoParsing(ref e) => e.fmt(f),
+            ParameterizedExpansion(ref e) => e.fmt(f),
+            NotSupported => f.write_str("operation not supported by the terminal"),
+            TermUnset => {
+                f.write_str("TERM environment variable unset, unable to detect a terminal")
+            }
+            TerminfoEntryNotFound => {
+                f.write_str("could not find a terminfo entry for this terminal")
+            }
+            CursorDestinationInvalid => f.write_str("could not move cursor to requested position"),
+            ColorOutOfRange => f.write_str("color not supported by the terminal"),
+            __Nonexhaustive => f.write_str("placeholder variant that shouldn't be used"),
+        }
+    }
+}
+
+impl std::error::Error for Error {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match *self {
+            Error::Io(ref io) => Some(io),
+            Error::TerminfoParsing(ref e) => Some(e),
+            Error::ParameterizedExpansion(ref e) => Some(e),
+            _ => None,
+        }
+    }
+}
+
+impl From<Error> for io::Error {
+    fn from(err: Error) -> io::Error {
+        let kind = match err {
+            Error::Io(ref e) => e.kind(),
+            _ => io::ErrorKind::Other,
+        };
+        io::Error::new(kind, err)
+    }
+}
+
+impl std::convert::From<io::Error> for Error {
+    fn from(val: io::Error) -> Self {
+        Error::Io(val)
+    }
+}
+
+impl std::convert::From<terminfo::Error> for Error {
+    fn from(val: terminfo::Error) -> Self {
+        Error::TerminfoParsing(val)
+    }
+}
+
+impl std::convert::From<terminfo::parm::Error> for Error {
+    fn from(val: terminfo::parm::Error) -> Self {
+        Error::ParameterizedExpansion(val)
+    }
+}
+
+/// A terminal with similar capabilities to an ANSI Terminal
+/// (foreground/background colors etc).
+pub trait Terminal: Write {
+    /// The terminal's output writer type.
+    type Output: Write;
+
+    /// Sets the foreground color to the given color.
+    ///
+    /// If the color is a bright color, but the terminal only supports 8 colors,
+    /// the corresponding normal color will be used instead.
+    ///
+    /// Returns `Ok(())` if the color change code was sent to the terminal, or `Err(e)` if there
+    /// was an error.
+    fn fg(&mut self, color: color::Color) -> Result<()>;
+
+    /// Sets the background color to the given color.
+    ///
+    /// If the color is a bright color, but the terminal only supports 8 colors,
+    /// the corresponding normal color will be used instead.
+    ///
+    /// Returns `Ok(())` if the color change code was sent to the terminal, or `Err(e)` if there
+    /// was an error.
+    fn bg(&mut self, color: color::Color) -> Result<()>;
+
+    /// Sets the given terminal attribute, if supported.  Returns `Ok(())` if the attribute is
+    /// supported and was sent to the terminal, or `Err(e)` if there was an error or the attribute
+    /// wasn't supported.
+    fn attr(&mut self, attr: Attr) -> Result<()>;
+
+    /// Returns whether the given terminal attribute is supported.
+    fn supports_attr(&self, attr: Attr) -> bool;
+
+    /// Resets all terminal attributes and colors to their defaults.
+    ///
+    /// Returns `Ok(())` if the reset code was printed, or `Err(e)` if there was an error.
+    ///
+    /// *Note: This does not flush.*
+    ///
+    /// That means the reset command may get buffered so, if you aren't planning on doing anything
+    /// else that might flush stdout's buffer (e.g. writing a line of text), you should flush after
+    /// calling reset.
+    fn reset(&mut self) -> Result<()>;
+
+    /// Returns true if reset is supported.
+    fn supports_reset(&self) -> bool;
+
+    /// Returns true if color is fully supported.
+    ///
+    /// If this function returns `true`, `bg`, `fg`, and `reset` will never
+    /// return `Err(Error::NotSupported)`.
+    fn supports_color(&self) -> bool;
+
+    /// Moves the cursor up one line.
+    ///
+    /// Returns `Ok(())` if the cursor movement code was printed, or `Err(e)` if there was an
+    /// error.
+    fn cursor_up(&mut self) -> Result<()>;
+
+    /// Deletes the text from the cursor location to the end of the line.
+    ///
+    /// Returns `Ok(())` if the deletion code was printed, or `Err(e)` if there was an error.
+    fn delete_line(&mut self) -> Result<()>;
+
+    /// Moves the cursor to the left edge of the current line.
+    ///
+    /// Returns `Ok(true)` if the deletion code was printed, or `Err(e)` if there was an error.
+    fn carriage_return(&mut self) -> Result<()>;
+
+    /// Gets an immutable reference to the stream inside
+    fn get_ref(&self) -> &Self::Output;
+
+    /// Gets a mutable reference to the stream inside
+    fn get_mut(&mut self) -> &mut Self::Output;
+
+    /// Returns the contained stream, destroying the `Terminal`
+    fn into_inner(self) -> Self::Output
+    where
+        Self: Sized;
+}