Categorygithub.com/diamondburned/tcell
modulepackage
1.1.8
Repository: https://github.com/diamondburned/tcell.git
Documentation: pkg.go.dev
Overview
Versions
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Dependencies
21
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2
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3.9k SLOC

# README

= tcell

image:https://img.shields.io/travis/gdamore/tcell.svg?label=linux[Linux Status,link="https://travis-ci.org/gdamore/tcell"] image:https://img.shields.io/appveyor/ci/gdamore/tcell.svg?label=windows[Windows Status,link="https://ci.appveyor.com/project/gdamore/tcell"] image:https://img.shields.io/badge/license-APACHE2-blue.svg[Apache License,link="https://github.com/gdamore/tcell/blob/master/LICENSE"] image:https://img.shields.io/badge/gitter-join-brightgreen.svg[Gitter,link="https://gitter.im/gdamore/tcell"] image:https://img.shields.io/badge/godoc-reference-blue.svg[GoDoc,link="https://godoc.org/github.com/gdamore/tcell"] image:http://goreportcard.com/badge/gdamore/tcell[Go Report Card,link="http://goreportcard.com/report/gdamore/tcell"] image:https://codecov.io/gh/gdamore/tcell/branch/master/graph/badge.svg[codecov,link="https://codecov.io/gh/gdamore/tcell"] image:https://tidelift.com/badges/github/gdamore/tcell?style=flat[Dependencies]

[cols="2",grid="none"] |=== |Tcell is a Go package that provides a cell based view for text terminals, like xterm. It was inspired by termbox, but includes many additional improvements. a|[.right] image::logos/tcell.png[float="right"] |===

Examples

Pure Go Terminfo Database

Tcell includes a full parser and expander for terminfo capability strings, so that it can avoid hard coding escape strings for formatting. It also favors portability, and includes support for all POSIX systems.

The database is also flexible & extensible, and can modified by either running a program to build the entire database, or an entry for just a single terminal.

More Portable

Tcell is portable to a wide variety of systems. Tcell is believed to work with all of the systems officially supported by golang with the exception of nacl (which lacks any kind of a terminal interface). (Plan9 is not supported by Tcell, but it is experimental status only in golang.) For all of these systems except Solaris/illumos, Tcell is pure Go, with no need for CGO.

No Async IO

Tcell is able to operate without requiring SIGIO signals (unlike termbox), or asynchronous I/O, and can instead use standard Go file objects and Go routines. This means it should be safe, especially for use with programs that use exec, or otherwise need to manipulate the tty streams. This model is also much closer to idiomatic Go, leading to fewer surprises.

Rich Unicode & non-Unicode support

Tcell includes enhanced support for Unicode, including wide characters and combining characters, provided your terminal can support them. Note that Windows terminals generally don't support the full Unicode repertoire.

It will also convert to and from Unicode locales, so that the program can work with UTF-8 internally, and get reasonable output in other locales. Tcell tries hard to convert to native characters on both input and output, and on output Tcell even makes use of the alternate character set to facilitate drawing certain characters.

More Function Keys

Tcell also has richer support for a larger number of special keys that some terminals can send.

Better Color Handling

Tcell will respect your terminal's color space as specified within your terminfo entries, so that for example attempts to emit color sequences on VT100 terminals won't result in unintended consequences.

In Windows mode, Tcell supports 16 colors, bold, dim, and reverse, instead of just termbox's 8 colors with reverse. (Note that there is some conflation with bold/dim and colors.)

Tcell maps 16 colors down to 8, for terminals that need it. (The upper 8 colors are just brighter versions of the lower 8.)

Better Mouse Support

Tcell supports enhanced mouse tracking mode, so your application can receive regular mouse motion events, and wheel events, if your terminal supports it.

Termbox Compatibility

A compatibility layer for termbox is provided in the compat directory. To use it, try importing github.com/gdamore/tcell/termbox instead. Most termbox-go programs will probably work without further modification.

Working With Unicode

Internally Tcell uses UTF-8, just like Go. However, Tcell understands how to convert to and from other character sets, using the capabilities of the golang.org/x/text/encoding packages. Your application must supply them, as the full set of the most common ones bloats the program by about 2MB. If you're lazy, and want them all anyway, see the encoding sub-directory.

Wide & Combining Characters

The SetContent() API takes a primary rune, and an optional list of combining runes. If any of the runes is a wide (East Asian) rune occupying two cells, then the library will skip output from the following cell, but care must be taken in the application to avoid explicitly attempting to set content in the next cell, otherwise the results are undefined. (Normally wide character is displayed, and the other character is not; do not depend on that behavior.)

Experience has shown that the vanilla Windows 8 console application does not support any of these characters properly, but at least some options like ConEmu do support Wide characters.

Colors

Tcell assumes the ANSI/XTerm color model, including the 256 color map that XTerm uses when it supports 256 colors. The terminfo guidance will be honored, with respect to the number of colors supported. Also, only terminals which expose ANSI style setaf and setab will support color; if you have a color terminal that only has setf and setb, please let me know; it wouldn't be hard to add that if there is need.

24-bit Color

Tcell supports true color! (That is, if your terminal can support it, Tcell can accurately display 24-bit color.)

To use 24-bit color, you need to use a terminal that supports it. Modern xterm and similar teminal emulators can support this. As terminfo lacks any way to describe this capability, we fabricate the capability for terminals with names ending in *-truecolor. The stock distribution ships with a database that defines xterm-truecolor. To try it out, set your TERM variable to xterm-truecolor.

When using TrueColor, programs will display the colors that the programmer intended, overriding any "themes" you may have set in your terminal emulator. (For some cases, accurate color fidelity is more important than respecting themes. For other cases, such as typical text apps that only use a few colors, its more desirable to respect the themes that the user has established.)

If you find this undesirable, you can either use a TERM variable that lacks the TRUECOLOR setting, or set TCELL_TRUECOLOR=disable in your environment.

Performance

Reasonable attempts have been made to minimize sending data to terminals, avoiding repeated sequences or drawing the same cell on refresh updates.

Terminfo

(Not relevent for Windows users.)

The Terminfo implementation operates with two forms of database. The first is the built-in go database, which contains a number of real database entries that are compiled into the program directly. This should minimize calling out to database file searches.

The second is in the form of JSON files, that contain the same information, which can be located either by the $TCELLDB environment file, $HOME/.tcelldb, or is located in the Go source directory as database.json.

These files (both the Go and the JSON files) can be generated using the mkinfo.go program. If you need to regnerate the entire set for some reason, run the mkdatabase.sh file. The generation uses the infocmp(1) program on the system to collect the necessary information.

The mkinfo.go program can also be used to generate specific database entries for named terminals, in case your favorite terminal is missing. (If you find that this is the case, please let me know and I'll try to add it!)

Tcell requires that the terminal support the cup mode of cursor addressing. Terminals without absolute cursor addressability are not supported. This is unlikely to be a problem; such terminals have not been mass produced since the early 1970s.

Mouse Support

Mouse support is detected via the kmous terminfo variable, however, enablement/disablement and decoding mouse events is done using hard coded sequences based on the XTerm X11 model. As of this writing all popular terminals with mouse tracking support this model. (Full terminfo support is not possible as terminfo sequences are not defined.)

On Windows, the mouse works normally.

Mouse wheel buttons on various terminals are known to work, but the support in terminal emulators, as well as support for various buttons and live mouse tracking, varies widely. Modern xterm, macOS Terminal, and iTerm all work well.

Testablity

There is a SimulationScreen, that can be used to simulate a real screen for automated testing. The supplied tests do this. The simulation contains event delivery, screen resizing support, and capabilities to inject events and examine "physical" screen contents.

Platforms

POSIX (Linux, FreeBSD, macOS, Solaris, etc.)

For mainstream systems with a suitably well defined system call interface to tty settings, everything works using pure Go.

For the remainder (right now means only Solaris/illumos) we use POSIX function calls to manage termios, which implies that CGO is required on those platforms.

Windows

Windows console mode applications are supported. Unfortunately mintty and other cygwin style applications are not supported.

Modern console applications like ConEmu, as well as the Windows 10 console itself, support all the good features (resize, mouse tracking, etc.)

I haven't figured out how to cleanly resolve the dichotomy between cygwin style termios and the Windows Console API; it seems that perhaps nobody else has either. If anyone has suggestions, let me know! Really, if you're using a Windows application, you should use the native Windows console or a fully compatible console implementation.

Plan9 and Native Client (Nacl)

The nacl and plan9 platforms won't work, but compilation stubs are supplied for folks that want to include parts of this in software targetting those platforms. The Simulation screen works, but as Tcell doesn't know how to allocate a real screen object on those platforms, NewScreen() will fail.

If anyone has wisdom about how to improve support for either of these, please let me know. PRs are especially welcome.

Commercial Support

Tcell is absolutely free, but if you want to obtain commercial, professional support, there are options.

[cols="2",align="center",frame="none", grid="none"] |=== ^.^| image:logos/tidelift.png[100,100] a| https://tidelift.com/[Tidelift] subscriptions include support for Tcell, as well as many other open source packages.

^.^| image:logos/staysail.png[100,100] a| mailto:[email protected][Staysail Systems, Inc.] offers direct support, and custom development around Tcell on an hourly basis.

^.^| image:logos/patreon.png[100,100] a|I also welcome donations at https://www.patron.com/gedamore/[Patreon], if you just want to make a contribution. |===

# Packages

No description provided by the author

# Functions

FindColor attempts to find a given color, or the best match possible for it, from the palette given.
GetColor creates a Color from a color name (W3C name).
GetEncoding is used by Screen implementors who want to locate an encoding for the given character set name.
NewConsoleScreen returns a console based screen.
NewEventError creates an ErrorEvent with the given error payload.
NewEventInterrupt creates an EventInterrupt with the given payload.
NewEventKey attempts to create a suitable event.
NewEventMouse is used to create a new mouse event.
NewEventResize creates an EventResize with the new updated window size, which is given in character cells.
NewHexColor returns a color using the given 24-bit RGB value.
NewRGBColor returns a new color with the given red, green, and blue values.
NewScreen returns a default Screen suitable for the user's terminal environment.
NewSimulationScreen returns a SimulationScreen.
NewTerminfoScreen returns a Screen that uses the stock TTY interface and POSIX termios, combined with a terminfo description taken from the $TERM environment variable.
RegisterEncoding may be called by the application to register an encoding.
SetEncodingFallback changes the behavior of GetEncoding when a suitable encoding is not found.

# Constants

Attributes are not colors, but affect the display of text.
Attributes are not colors, but affect the display of text.
Attributes are not colors, but affect the display of text.
Attributes are not colors, but affect the display of text.
Just normal text.
Attributes are not colors, but affect the display of text.
Attributes are not colors, but affect the display of text.
Attributes are not colors, but affect the display of text.
Usually left mouse button.
Usually the middle mouse button.
Usually the right mouse button.
Often a side button (thumb/next).
Often a side button (thumb/prev).
These are the actual button values.
These are the actual button values.
These are the actual button values.
No button or wheel events.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
These are aliases for the color gray, because some of us spell it as grey.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
These are aliases for the color gray, because some of us spell it as grey.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
ColorDefault is used to leave the Color unchanged from whatever system or teminal default may exist.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
These are aliases for the color gray, because some of us spell it as grey.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
These are aliases for the color gray, because some of us spell it as grey.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
ColorIsRGB is used to indicate that the numeric value is not a known color constant, but rather an RGB value.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
These are aliases for the color gray, because some of us spell it as grey.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
These are aliases for the color gray, because some of us spell it as grey.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
These are aliases for the color gray, because some of us spell it as grey.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
Note that the order of these options is important -- it follows the definitions used by ECMA and XTerm.
EncodingFallbackASCII behaviore causes GetEncoding to fall back to a 7-bit ASCII encoding, if no other encoding can be found.
EncodingFallbackFail behavior causes GetEncoding to fail when it cannot find an encoding.
EncodingFallbackUTF8 behavior causes GetEncoding to assume UTF8 can pass unmodified upon failure.
These are the defined ASCII values for key codes.
These keys are aliases for other names.
These keys are aliases for other names.
This is the list of named keys.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
These are the defined ASCII values for key codes.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
Escape.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the control keys.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
This is the list of named keys.
These are the defined ASCII values for key codes.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
These are the defined ASCII values for key codes.
This is the list of named keys.
These are the defined ASCII values for key codes.
These keys are aliases for other names.
These are the defined ASCII values for key codes.
These keys are aliases for other names.
These are the defined ASCII values for key codes.
These keys are aliases for other names.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
These are the defined ASCII values for key codes.
This is the list of named keys.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
These keys are aliases for other names.
These are the defined ASCII values for key codes.
This is the list of named keys.
This is the list of named keys.
This is the list of named keys.
These are the defined ASCII values for key codes.
These are the defined ASCII values for key codes.
These are the modifiers keys that can be sent either with a key press, or a mouse event.
These are the modifiers keys that can be sent either with a key press, or a mouse event.
These are the modifiers keys that can be sent either with a key press, or a mouse event.
These are the modifiers keys that can be sent either with a key press, or a mouse event.
These are the modifiers keys that can be sent either with a key press, or a mouse event.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
The names of these constants are chosen to match Terminfo names, modulo case, and changing the prefix from ACS_ to Rune.
StyleDefault represents a default style, based upon the context.
Wheel motion down/towards user.
Wheel motion to left.
Wheel motion to right.
Wheel motion up/away from user.

# Variables

ColorNames holds the written names of colors.
ColorValues maps color constants to their RGB values.
ErrEventQFull indicates that the event queue is full, and cannot accept more events.
ErrNoCharset indicates that the locale environment the program is not supported by the program, because no suitable encoding was found for it.
ErrNoScreen indicates that no suitable screen could be found.
ErrTermNotFound indicates that a suitable terminal entry could not be found.
KeyNames holds the written names of special keys.
RuneFallbacks is the default map of fallback strings that will be used to replace a rune when no other more appropriate transformation is available, and the rune cannot be displayed directly.

# Structs

CellBuffer represents a two dimensional array of character cells.
An EventError is an event representing some sort of error, and carries an error payload.
EventInterrupt is a generic wakeup event.
EventKey represents a key press.
EventMouse is a mouse event.
EventResize is sent when the window size changes.
EventTime is a simple base event class, suitable for easy reuse.
SimCell represents a simulated screen cell.

# Interfaces

Event is a generic interface used for passing around Events.
EventHandler is anything that handles events.
Screen represents the physical (or emulated) screen.
SimulationScreen represents a screen simulation.

# Type aliases

AttrMask represents a mask of text attributes, apart from color.
ButtonMask is a mask of mouse buttons and wheel events.
Color represents a color.
EncodingFallback describes how the system behavees when the locale requires a character set that we do not support.
Key is a generic value for representing keys, and especially special keys (function keys, cursor movement keys, etc.) For normal keys, like ASCII letters, we use KeyRune, and then expect the application to inspect the Rune() member of the EventKey.
ModMask is a mask of modifier keys.
Style represents a complete text style, including both foreground and background color.