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# CHANGELOG
## Versioning
This library is versioned based on Semantic Versioning ([SemVer](https://semver.org/)).
#### Version scoping
The scope of what is covered by the version number excludes:
- error messages; the text of the messages can change, unless specifically documented.
#### Releasing new versions
- create a release branch
- update the changelog below
- update version and copyright-years in `./LICENSE.md` and `./src/core.c` (in module constants)
- create a new rockspec and update the version inside the new rockspec:<br/>
`cp luasystem-scm-0.rockspec ./rockspecs/luasystem-X.Y.Z-1.rockspec`
- clean and render the docs: run `ldoc .`
- commit the changes as `Release vX.Y.Z`
- push the commit, and create a release PR
- after merging tag the release commit with `vX.Y.Z`
- upload to LuaRocks will be automatic by the CI runners
- test the newly created rock:<br/>
`luarocks install luasystem`
## Version history
### version x.x.x, unreleased
- Fix: remove two unused-variable warnings.
See [#78](https://github.com/lunarmodules/luasystem/pull/78).
- Fix: duplicate symbol when linking with luajit on windows
See [#81](https://github.com/lunarmodules/luasystem/pull/81).
- Fix: fix the display-width functions that occasionally reported a bad width. The source code now
includes a code-generator that parses the official Unicode files to create static ranges in the
source code. Beyond that the ambiguous width can now be specified by the user, as a second parameter
to `utf8cwidth` and `utf8swidth`.
See [#82](https://github.com/lunarmodules/luasystem/pull/82).
- Chore: added Lua 5.5 to CI matrix.
See [#79](https://github.com/lunarmodules/luasystem/pull/79).
- Chore: relax test assertion wrt time.
See [#80](https://github.com/lunarmodules/luasystem/pull/80).
### version 0.6.3, released 11-Jul-2025
- Fix: maximum key-delay, reduced from 0.2 to 0.1 seconds to reduce slugginess feel on some key presses.
See [#69](https://github.com/lunarmodules/luasystem/pull/69).
- Fix: `readansi` now only reports printable chars as characters
See [#70](https://github.com/lunarmodules/luasystem/pull/70).
- Fix: readkey now ignores Windows scancodes if received.
See [#74](https://github.com/lunarmodules/luasystem/pull/74).
- Fix: readkey now passes errors on.
See [#74](https://github.com/lunarmodules/luasystem/pull/74).
### version 0.6.2, released 15-Apr-2025
- Fix: autotermrestore didn't work because its metatable was overwritten.
### version 0.6.1, released 13-Apr-2025
- Docs: document readansi internal buffer for incomplete sequences.
- Fix: ensure to properly parse `<alt>+key` key presses
### version 0.6.0, released 10-Apr-2025
- Fix: when sleep returns an error, pass that on in `readkey`.
- Feat: added `detachfds` which will create separate file descriptions for `stdout`
and `stderr` to ensure that related settings (eg. non-blocking flag) will not be shared
amongst those streams and `stdin`.
### version 0.5.1, released 12-Mar-2025
- Fix: on older unixes with glibc < 2.25, fall back to `/dev/urandom`
### version 0.5.0, released 02-Mar-2025
- Feat: when detecting character display width, also accept unicode codepoints (integers),
since the Lua utf8 library returns codepoints, not strings
- Feat: allow passing in a sleep function to `readkey` and `readansi`
- Fix: NetBSD fix compilation, undeclared directives
- Refactor: random bytes; remove deprecated API usage on Windows, move to
binary api instead of `/dev/urandom` file on linux and bsd
### version 0.4.5, released 18-Dec-2024
- Fix: suppress a warning when building with clang
- Fix: do not rely on `luaconf.h` to include `limits.h`, fixes builds with latest LuaJIT (#38).
### version 0.4.4, released 03-Sep-2024
- Fix: include all objects in Makefile
### version 0.4.3, released 28-Aug-2024
- Chore: add compiler error on Windows if Virtual Terminal Processing is unavailable.
- Fix: fix the freebsd build
### Version 0.4.2, released 25-Jun-2024
- Fix: include additional headers for some MinGW installations
### Version 0.4.1, released 25-Jun-2024
- Fix: when compiling with `msys2` the `conio.h` header is required
### Version 0.4.0, released 20-Jun-2024
- Feat: `getconsoleflags` and `setconsoleflags` for getting/setting the current console configuration flags on Windows
- Feat: `getconsolecp` and `setconsolecp` for getting/setting the console codepage on Windows
- Feat: `getconsoleoutputcp` and `setconsoleoutputcp` for getting/setting the console output codepage on Windows
- Feat: `tcgetattr` and `tcsetattr` for getting/setting the current console configuration flags on Posix
- Feat: `getnonblock` and `setnonblock` for getting/setting the non-blocking flag on Posix
- Feat: `bitflags`: a support feature for the above flag type controls to facilitate bit manipulation without resorting to binary operations (to also support PuC Lua 5.1)
- Feat: `readkey` reads a keyboard input from `stdin` in a non-blocking way (utf8, also on Windows)
- Feat: `readansi` reads a keyboard input from `stdin` in a non-blocking way, parses ansi and utf8 sequences
- Feat: `termsize` gets the current terminal size in rows and columns
- Feat: `utf8cwidth` and `utf8swidth` for getting the display width (in columns) of respectively a single utf8 character, or a utf8 string
- Feat: helpers; `termbackup`, `termrestore`, `autotermrestore`, and `termwrap` for managing the many terminal settings on all platforms.
### Version 0.3.0, released 15-Dec-2023
- Feat: on Windows `sleep` now has a precision parameter
- Feat: `setenv` added to set environment variables.
- Feat: `getenvs` added to list environment variables.
- Feat: `getenv` added to get environment variable previously set (Windows).
- Feat: `random` added to return high-quality random bytes
- Feat: `isatty` added to check if a file-handle is a tty
### Version 0.2.1, released 02-Oct-2016
### Version 0.2.0, released 08-May-2016
### Version 0.1.1, released 10-Apr-2016
### Version 0.1.0, released 11-Feb-2016
- initial release
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