cceeeeeeb2
I though this would clear the text and current display attributes from the cursor to end of the line. This is not the case. The display attribute is state of the output cursor and not the already dislayed text. This change sets the default display attributes at the end of a line as well as the start of a new line. This passes all the tests but will cause a regression in Yi: The display of a selection area will not extend to the end of the screen. However, I have a branch of Yi that adds vertical splits. In order to implement this the selection area display code needed to handle extending the image to the end of the frame. |
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| cbits | ||
| ci | ||
| docs | ||
| scripts | ||
| src | ||
| test | ||
| .gitignore | ||
| .travis.yml | ||
| AUTHORS | ||
| build_examples | ||
| CHANGELOG | ||
| Demo.hs | ||
| DESIGN | ||
| install_examples | ||
| LICENSE | ||
| README.md | ||
| Setup.lhs | ||
| TODO | ||
| view-benchmark-core | ||
| vty.cabal | ||
vty is a terminal interface library.
Project is hosted on github.com: https://github.com/coreyoconnor/vty
git clone git://github.com/coreyoconnor/vty.git
Features
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Support for a large number of terminals. vt100, ansi, hurd, linux, screen etc etc. Anything with a sufficient terminfo entry.
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Automatic handling of window resizes.
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If the terminal support UTF-8 then vty supports Unicode output.
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Handles multi-column glyphs. (Requires user to properly configure terminal.)
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Efficient output. Output buffering and terminal state changes are minimized.
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Minimizes repaint area. Virtually eliminating the flicker problems that plagues ncurses programs.
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A pure, compositional interface for efficiently constructing display images.
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Automatically decodes keyboard keys into (key,[modifier]) tuples.
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Automatically supports refresh on Ctrl-L.
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Automatically supports timeout after for lone ESC. The timeout is customizable.
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Interface is designed for easy compatible extension.
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Supports ANSI graphics modes (SGR as defined in console_codes(4)) with a type-safe interface. Gracefull fallback for terminals that do not support, or partially support the standard ANSI graphics modes.
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Properly handles cleanup, but not due to signals.
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Comprehensive test suite.
Known Issues
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Terminals have numerous quirks and bugs. vty picks what works best for the author in ambigious, or buggy situations.
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Signal handling of STOP, TERM and INT are non existent.
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The character encoding of the terminal is assumed to be UTF-8 if unicode is used.
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Terminfo is assumed to be correct unless there is an override configured. Some terminals will not have correct special key support (shifted F10 etc). See Config for customizing vty's behavior for a particular terminal.
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Uses the TIOCGWINSZ ioctl to find the current window size, which appears to be limited to Linux and BSD.
Platform Support
Posix Terminals
Uses terminfo to determine terminal protocol. With some special rules to handle some omissions from terminfo.
Windows
cygwin only.
Development Notes
Under NixOS
After installing ncurses to user env.
LIBRARY_PATH=$HOME/.nix-profile/lib/ cabal configure --enable-tests --extra-lib-dirs=$HOME/.nix-profile/lib
LIBRARY_PATH=$HOME/.nix-profile/lib/ cabal build
LIBRARY_PATH=$HOME/.nix-profile/lib/ cabal test
Coverage
As of last testing, profiling causes 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
Profiling
rm -rf dist ; cabal configure --enable-tests --disable-library-coverage \
--enable-library-profiling \
--enable-executable-profiling