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A high-level ncurses alternative written in Haskell

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vty is a terminal interface library.

git clone git://github.com/coreyoconnor/vty.git

Features

Automatic handling of window resizes.
Supports Unicode characters on output, automatically setting and resetting UTF-8 mode for xterm. Other terminals are assumed to support
Efficient output.
Minimizes repaint area, thus virtually eliminating the flicker problem that plagues ncurses programs.
A pure, compositional interface for efficiently constructing display images.
Automatically decodes keyboard keys into (key,[modifier]) tuples.
Automatically supports refresh on Ctrl-L.
Automatically supports timeout after 50ms for lone ESC (a barely noticable delay)
Interface is designed for relatively easy compatible extension.
Supports all ANSI SGR-modes (defined in console_codes(4)) with a type-safe interface.
Properly handles cleanup, but not due to signals.

Known Issues

Signal handling of STOP, TERM and INT are non existent.
The character encoding of the terminal is assumed to be UTF-8.
Terminfo is assumed to be correct unless the terminal (as declared by TERM) starts with xterm or ansi. This means that some terminals will not have correct special key support (shifted F10 etc)
Uses the TIOCGWINSZ ioctl to find the current window size, which appears to be limited to Linux and *BSD.

Uses terminfo to determine terminal protocol. Some special rules for Mac terminal applications. The special rules might be invalid on newer Mac OS.

None!

Profiling appears to cause issues with coverage when enabled. To evaluate coverage configure as follows:

rm -rf dist ; cabal configure --enable-tests --enable-library-coverage \
  --disable-library-profiling \
  --disable-executable-profiling

rm -rf dist ; cabal configure --enable-tests --disable-library-coverage \
  --enable-library-profiling \
  --enable-executable-profiling