1 // Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 //! Terminal formatting library.
13 //! This crate provides the `Terminal` trait, which abstracts over an [ANSI
14 //! Terminal][ansi] to provide color printing, among other things. There are two implementations,
15 //! the `TerminfoTerminal`, which uses control characters from a
16 //! [terminfo][ti] database, and `WinConsole`, which uses the [Win32 Console
22 //! extern crate term;
25 //! let mut t = term::stdout().unwrap();
27 //! t.fg(term::color::GREEN).unwrap();
28 //! (write!(t, "hello, ")).unwrap();
30 //! t.fg(term::color::RED).unwrap();
31 //! (writeln!(t, "world!")).unwrap();
33 //! t.reset().unwrap();
37 //! [ansi]: https://en.wikipedia.org/wiki/ANSI_escape_code
38 //! [win]: http://msdn.microsoft.com/en-us/library/windows/desktop/ms682010%28v=vs.85%29.aspx
39 //! [ti]: https://en.wikipedia.org/wiki/Terminfo
41 #![crate_name = "term"]
43 #![comment = "Simple ANSI color library"]
44 #![license = "MIT/ASL2"]
45 #![crate_type = "rlib"]
46 #![crate_type = "dylib"]
47 #![doc(html_logo_url = "http://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
48 html_favicon_url = "http://www.rust-lang.org/favicon.ico",
49 html_root_url = "http://doc.rust-lang.org/nightly/",
50 html_playground_url = "http://play.rust-lang.org/")]
52 #![allow(unknown_features)]
53 #![feature(macro_rules, phase, slicing_syntax, globs)]
55 #![deny(missing_docs)]
57 #[phase(plugin, link)] extern crate log;
59 pub use terminfo::TerminfoTerminal;
61 pub use win::WinConsole;
63 use std::io::IoResult;
70 /// A hack to work around the fact that `Box<Writer + Send>` does not
71 /// currently implement `Writer`.
72 pub struct WriterWrapper {
73 wrapped: Box<Writer + Send>,
76 impl Writer for WriterWrapper {
78 fn write(&mut self, buf: &[u8]) -> IoResult<()> {
79 self.wrapped.write(buf)
83 fn flush(&mut self) -> IoResult<()> {
89 /// Return a Terminal wrapping stdout, or None if a terminal couldn't be
91 pub fn stdout() -> Option<Box<Terminal<WriterWrapper> + Send>> {
92 TerminfoTerminal::new(WriterWrapper {
93 wrapped: box std::io::stdout() as Box<Writer + Send>,
98 /// Return a Terminal wrapping stdout, or None if a terminal couldn't be
100 pub fn stdout() -> Option<Box<Terminal<WriterWrapper> + Send>> {
101 let ti = TerminfoTerminal::new(WriterWrapper {
102 wrapped: box std::io::stdout() as Box<Writer + Send>,
108 WinConsole::new(WriterWrapper {
109 wrapped: box std::io::stdout() as Box<Writer + Send>,
116 /// Return a Terminal wrapping stderr, or None if a terminal couldn't be
118 pub fn stderr() -> Option<Box<Terminal<WriterWrapper> + Send>> {
119 TerminfoTerminal::new(WriterWrapper {
120 wrapped: box std::io::stderr() as Box<Writer + Send>,
125 /// Return a Terminal wrapping stderr, or None if a terminal couldn't be
127 pub fn stderr() -> Option<Box<Terminal<WriterWrapper> + Send>> {
128 let ti = TerminfoTerminal::new(WriterWrapper {
129 wrapped: box std::io::stderr() as Box<Writer + Send>,
135 WinConsole::new(WriterWrapper {
136 wrapped: box std::io::stderr() as Box<Writer + Send>,
143 /// Terminal color definitions
145 /// Number for a terminal color
146 pub type Color = u16;
148 pub const BLACK: Color = 0u16;
149 pub const RED: Color = 1u16;
150 pub const GREEN: Color = 2u16;
151 pub const YELLOW: Color = 3u16;
152 pub const BLUE: Color = 4u16;
153 pub const MAGENTA: Color = 5u16;
154 pub const CYAN: Color = 6u16;
155 pub const WHITE: Color = 7u16;
157 pub const BRIGHT_BLACK: Color = 8u16;
158 pub const BRIGHT_RED: Color = 9u16;
159 pub const BRIGHT_GREEN: Color = 10u16;
160 pub const BRIGHT_YELLOW: Color = 11u16;
161 pub const BRIGHT_BLUE: Color = 12u16;
162 pub const BRIGHT_MAGENTA: Color = 13u16;
163 pub const BRIGHT_CYAN: Color = 14u16;
164 pub const BRIGHT_WHITE: Color = 15u16;
167 /// Terminal attributes
169 pub use self::Attr::*;
171 /// Terminal attributes for use with term.attr().
173 /// Most attributes can only be turned on and must be turned off with term.reset().
174 /// The ones that can be turned off explicitly take a boolean value.
175 /// Color is also represented as an attribute for convenience.
177 /// Bold (or possibly bright) mode
179 /// Dim mode, also called faint or half-bright. Often not supported
181 /// Italics mode. Often not supported
187 /// Standout mode. Often implemented as Reverse, sometimes coupled with Bold
189 /// Reverse mode, inverts the foreground and background colors
191 /// Secure mode, also called invis mode. Hides the printed text
193 /// Convenience attribute to set the foreground color
194 ForegroundColor(super::color::Color),
195 /// Convenience attribute to set the background color
196 BackgroundColor(super::color::Color)
200 /// A terminal with similar capabilities to an ANSI Terminal
201 /// (foreground/background colors etc).
202 pub trait Terminal<T: Writer>: Writer {
203 /// Sets the foreground color to the given color.
205 /// If the color is a bright color, but the terminal only supports 8 colors,
206 /// the corresponding normal color will be used instead.
208 /// Returns `Ok(true)` if the color was set, `Ok(false)` otherwise, and `Err(e)`
209 /// if there was an I/O error.
210 fn fg(&mut self, color: color::Color) -> IoResult<bool>;
212 /// Sets the background color to the given color.
214 /// If the color is a bright color, but the terminal only supports 8 colors,
215 /// the corresponding normal color will be used instead.
217 /// Returns `Ok(true)` if the color was set, `Ok(false)` otherwise, and `Err(e)`
218 /// if there was an I/O error.
219 fn bg(&mut self, color: color::Color) -> IoResult<bool>;
221 /// Sets the given terminal attribute, if supported. Returns `Ok(true)`
222 /// if the attribute was supported, `Ok(false)` otherwise, and `Err(e)` if
223 /// there was an I/O error.
224 fn attr(&mut self, attr: attr::Attr) -> IoResult<bool>;
226 /// Returns whether the given terminal attribute is supported.
227 fn supports_attr(&self, attr: attr::Attr) -> bool;
229 /// Resets all terminal attributes and color to the default.
231 fn reset(&mut self) -> IoResult<()>;
233 /// Gets an immutable reference to the stream inside
234 fn get_ref<'a>(&'a self) -> &'a T;
236 /// Gets a mutable reference to the stream inside
237 fn get_mut<'a>(&'a mut self) -> &'a mut T;
240 /// A terminal which can be unwrapped.
241 pub trait UnwrappableTerminal<T: Writer>: Terminal<T> {
242 /// Returns the contained stream, destroying the `Terminal`
243 fn unwrap(self) -> T;