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A high-level ncurses alternative written in Haskell
7bb84266b8
Not sure of the performance hits here. Also seems as though output_width and char_width are not strictly necessary anymore since we calculate them as we go along. Also changed is that when a wide character gets split by a translate or a region cutoff, the extra space is replaced with '…'. This is necessary at least on the left to avoid jumps when the character appears when scrolling. Not sure if this behavior is also wanted on the right. Is there a "partial character" codepoint for when there isn't enough space to display a full character? |
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vty.cabal |
vty is a terminal interface library. Vty currently provides: * 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. Current disadvantages: * The character encoding of the output terminal is assumed to be UTF-8. * Minimal support for special keys on terminals other than the linux-console. (F1-5 and arrow keys should work, but anything shifted isn't likely to.) * Uses the TIOCGWINSZ ioctl to find the current window size, which appears to be limited to Linux and *BSD. darcs get --tag=vty-4.0.0.1 http://code.haskell.org/vty/ To compile the demonstration program: ghc --make test/Test.hs gwinsz.c The main documentation consists of the haddock-comments and the demonstration program