85 lines
3.0 KiB
Plaintext
85 lines
3.0 KiB
Plaintext
hex
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===
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'hex' is yet another hex viewer. It automatically interprets fields within
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files using a set of Lua scripts, colorizing them and showing descriptions on
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the side. It also runs equally well in the terminal, or as an X11 client.
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At the moment there aren't that many features and we only have a few decoders.
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image::hex.png[align="center"]
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Packages
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--------
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Regular releases are sporadic. git master should be stable enough.
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You can get a package with the latest development version using Arch Linux's
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https://aur.archlinux.org/packages/hex-git[AUR],
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or as a https://git.janouch.name/p/nixexprs[Nix derivation].
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Documentation
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-------------
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See the link:hex.adoc[man page] for information about usage.
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The rest of this README will concern itself with externalities.
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Building and Running
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--------------------
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Build dependencies: CMake, pkg-config, awk, liberty (included),
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termo (included), asciidoctor or asciidoc (recommended but optional) +
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Runtime dependencies: ncursesw, libunistring, Lua >= 5.3 (for highlighting) +
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Optional runtime dependencies: x11, xft
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$ git clone --recursive https://git.janouch.name/p/hex.git
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$ mkdir hex/build
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$ cd hex/build
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$ cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Debug
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$ make
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To install the application, you can do either the usual:
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# make install
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Or you can try telling CMake to make a package for you. For Debian it is:
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$ cpack -G DEB
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# dpkg -i hex-*.deb
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Having the program installed, optionally create a configuration file and run it
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on a file of your choice.
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Terminal caveats
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----------------
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Terminals are somewhat tricky to get consistent results on, so be aware of the
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following:
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- Xterm needs `XTerm*metaSendsEscape: true` for the default bindings to work
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- urxvt's 'vtwheel' plugin sabotages scrolling
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Performance
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-----------
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While the Lua API has been made considerably easy to write new decoders with,
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the design is far from efficient as we make tons of new formatted strings.
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Since we need Lua 5.3 features (64-bit integers), LuaJIT can't help us here.
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Similar software
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----------------
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* https://ide.kaitai.io/ and https://codisec.com/veles/ are essentially what
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this project wanted to be but the description language is purely declarative
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* https://github.com/wader/fq goes a step above, allowing transformations
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of identified data
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* https://hachoir.readthedocs.io/en/latest/ seems to be strictly hierarchical,
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which may not work for file formats like ELF
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* https://github.com/ruslashev/elfcat is a more interactive viewer for ELF
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Contributing and Support
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------------------------
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Use https://git.janouch.name/p/hex to report any bugs, request features,
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or submit pull requests. `git send-email` is tolerated. If you want to discuss
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the project, feel free to join me at ircs://irc.janouch.name, channel #dev.
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Bitcoin donations are accepted at: 12r5uEWEgcHC46xd64tt3hHt9EUvYYDHe9
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License
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-------
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This software is released under the terms of the 0BSD license, the text of which
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is included within the package along with the list of authors.
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