bca71adad7
The "report alternate keys" part of the Kitty keyboard protocol will send an additional codepoint containing the "shifted" version of a key based on the keyboard layout. This is useful for downstream applications which set up keybindings based on symbols instead of exact keys being pressed. For example, underscore (_) with the Alt modifier is sent as minus (-) with Alt and Shift modifiers. A terminal will send the underscore codepoint as an alternate though, and we can use that information and the presence of the Shift modifier to resolve the symbol. Other examples are 'A-(' (sent as 'A-S-9') and 'A-)' (sent as 'A-S-0'). This change allows pushing the "report alternate keys" flag and overwrites the keycode and modifiers for any shifted keys sent by the terminal. |
||
---|---|---|
.github | ||
docs | ||
examples | ||
src | ||
.gitignore | ||
.travis.yml | ||
Cargo.toml | ||
CHANGELOG.md | ||
LICENSE | ||
README.md |
Cross-platform Terminal Manipulation Library
Crossterm is a pure-rust, terminal manipulation library that makes it possible to write cross-platform text-based interfaces (see features). It supports all UNIX and Windows terminals down to Windows 7 (not all terminals are tested, see Tested Terminals for more info).
Table of Contents
Features
- Cross-platform
- Multi-threaded (send, sync)
- Detailed documentation
- Few dependencies
- Full control over writing and flushing output buffer
- Is tty
- Cursor
- Move the cursor N times (up, down, left, right)
- Move to previous / next line
- Move to column
- Set/get the cursor position
- Store the cursor position and restore to it later
- Hide/show the cursor
- Enable/disable cursor blinking (not all terminals do support this feature)
- Styled output
- Foreground color (16 base colors)
- Background color (16 base colors)
- 256 (ANSI) color support (Windows 10 and UNIX only)
- RGB color support (Windows 10 and UNIX only)
- Text attributes like bold, italic, underscore, crossed, etc
- Terminal
- Clear (all lines, current line, from cursor down and up, until new line)
- Scroll up, down
- Set/get the terminal size
- Exit current process
- Alternate screen
- Raw screen
- Set terminal title
- Enable/disable line wrapping
- Event
- Input Events
- Mouse Events (press, release, position, button, drag)
- Terminal Resize Events
- Advanced modifier (SHIFT | ALT | CTRL) support for both mouse and key events and
- futures Stream (feature 'event-stream')
- Poll/read API
Tested Terminals
- Console Host
- Windows 10 (Pro)
- Windows 8.1 (N)
- Ubuntu Desktop Terminal
- Ubuntu 17.10
- Pop!_OS ( Ubuntu ) 20.04
- (Arch, Manjaro) KDE Konsole
- (Arch) Kitty
- Linux Mint
- (OpenSuse) Alacritty
- (Chrome OS) Crostini
This crate supports all UNIX terminals and Windows terminals down to Windows 7; however, not all of the terminals have been tested. If you have used this library for a terminal other than the above list without issues, then feel free to add it to the above list - I really would appreciate it!
Getting Started
see the examples directory and documentation for more advanced examples.
Click to show Cargo.toml.
[dependencies]
crossterm = "0.23"
use std::io::{stdout, Write};
use crossterm::{
execute,
style::{Color, Print, ResetColor, SetBackgroundColor, SetForegroundColor},
ExecutableCommand, Result,
event,
};
fn main() -> Result<()> {
// using the macro
execute!(
stdout(),
SetForegroundColor(Color::Blue),
SetBackgroundColor(Color::Red),
Print("Styled text here."),
ResetColor
)?;
// or using functions
stdout()
.execute(SetForegroundColor(Color::Blue))?
.execute(SetBackgroundColor(Color::Red))?
.execute(Print("Styled text here."))?
.execute(ResetColor)?;
Ok(())
}
Checkout this list with all possible commands.
Feature Flags
[dependencies.crossterm]
version = "0.23"
features = ["event-stream"]
Feature | Description |
---|---|
event-stream |
futures::Stream producing Result<Event> . |
serde |
(De)serializing of events. |
Dependency Justification
Dependency | Used for | Included |
---|---|---|
bitflags |
KeyModifiers , those are differ based on input. |
always |
parking_lot |
locking RwLock s with a timeout, const mutexes. |
always |
libc |
UNIX terminal_size/raw modes/set_title and several other low level functionality. | UNIX only |
Mio |
event readiness polling, waking up poller | UNIX only |
signal-hook |
signal-hook is used to handle terminal resize SIGNAL with Mio. | UNIX only |
winapi |
Used for low-level windows system calls which ANSI codes can't replace | windows only |
futures-core |
For async stream of events | only with event-stream feature flag |
serde |
serializing and deserializing of events | only with serde feature flag |
Other Resources
Used By
Contributing
We highly appreciate when anyone contributes to this crate. Before you do, please, read the Contributing guidelines.
Authors
- Timon Post - Project Owner & creator
License
This project, crossterm
and all its sub-crates: crossterm_screen
, crossterm_cursor
, crossterm_style
,
crossterm_input
, crossterm_terminal
, crossterm_winapi
, crossterm_utils
are licensed under the MIT
License - see the LICENSE file for details.