OpenVi
sioyek
OpenVi | sioyek | |
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8 | 88 | |
151 | 5,859 | |
- | - | |
7.5 | 5.5 | |
8 days ago | 6 days ago | |
C | C | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 only |
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OpenVi
- Portable OpenBSD vi for Unix systems
- Genealogy of Vim (2017)
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OpenVi: Portable OpenBSD vi for Unix systems
The behavior of the traditional vi is much different than vim and other clones. Nvi was a actually a re-implementation of the traditional vi for 4BSD (to be clean of AT&T code) and thus was originally intended to be bug-for-bug compatible, but breaking away where the original vi behavior was nonsensical or terrible.
For vim, `set compatible` or `set cp` is close, but still not traditional vi by any means.
A multibyte variant of the tradition vi is maintained - https://github.com/n-t-roff/heirloom-ex-vi/.
Nvi (now on version 1.8x) is also maintained - https://repo.or.cz/nvi.git
Nvi2 is yet another fork of Nvi, https://github.com/lichray/nvi2
Despite the very similar names, all of these editors have a variety of different features, and are structured very differently.
Nvi has a concept of a front-end and a back-end (which uses the BDB database). OpenVi uses the OpenBSD version of Berkeley DB which derives from 1.85. Nvi (1.8x) provides a minimal version of code also derived from that release intended from use with Nvi, and (IIRC) also provides support for using Db3/4/5. Similar situation for Nvi2.
Nvi 1.8 has been structured where a third library layer has been added, which doesn't exist in OpenBSD's vi or OpenVi. There is scripting support (Tcl, Perl, etc.) and GUI code in the other various forks ... all of these support various different options as well.
I should probably make a matrix of these, but you can get an idea by looking at the settable options implemented in each of the variants (as they historically include a comment to document from where the option originated):
OpenVi: https://github.com/johnsonjh/OpenVi/blob/22c2a7022e31d91e09e...
OpenBSD vi: https://github.com/openbsd/src/blob/master/usr.bin/vi/common...
Nvi2: https://github.com/lichray/nvi2/blob/5fcdc13656500a8c5b4c073...
Nvi1: https://repo.or.cz/nvi.git/blob/HEAD:/common/options.c#l52
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Hacker News top posts: Feb 19, 2022
OpenVi: Portable OpenBSD vi for Unix systems\ (22 comments)
sioyek
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Google Scholar PDF Reader
Sioyek is a PDF viewer designed exactly for reading research papers and textbooks: https://github.com/ahrm/sioyek.
- ArXiv now offers papers in HTML format
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Ask HN: What apps have you created for your own use?
Sioyek: a PDF viewer optimized for reading research papers and textbooks. https://github.com/ahrm/sioyek
It has a lot of niche features, but my favorite is the ability to preview or jump to references even when they are not linked in the PDF file.
- Sioyek is a PDF viewer with a focus on textbooks and research papers
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SumatraPDF Reader
I implore all developers of PDF readers to implement sioyek's overview feature[0]. When you hover on a cross-referenced entry, it opens a little preview window with the contents of the reference. It is an absolute game-changer for reading textbooks and technical papers; I cannot overstate its utility.
[0] https://github.com/ahrm/sioyek#overview
- Vimtex: sioyek is not executable. Any idea how to solve this. I'm on wsl2 Ubuntu.
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Sioyek PDF Viewer on Asahi Linux
Has anyone been able to run the sioyek PDF viewer (https://github.com/ahrm/sioyek) on Asahi? I've tinkered around a little, but the max I've gotten to is a black window with the executable complaining about an inability to compile certain shaders. Would this be due to the current OpenGL in mesa-asahi-edge (and thus can't be solved until we get more recent OpenGL version support) or is there some way to finagle around this?
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PDF Viewer that Compiles LaTeX Notes?
Maybe chat to the dev of https://github.com/ahrm/sioyek about adding this as a feature. It's probably the closest pdf viewer I can think of that might do something like this in the future.
- What software would you like to see ported?
- Good PDF reader/annotation for research
What are some alternatives?
nvi2 - A multibyte fork of the nvi editor for BSD
zathura - Document viewer
nextvi - Next version of neatvi (a small vi/ex editor) for editing bidirectional UTF-8 text
zotero - Zotero is a free, easy-to-use tool to help you collect, organize, annotate, cite, and share your research sources.
grist-core - Grist is the evolution of spreadsheets.
sumatrapdf - SumatraPDF reader
src - Read-only git conversion of OpenBSD's official CVS src repository. Pull requests not accepted - send diffs to the tech@ mailing list.
org-ref - org-mode modules for citations, cross-references, bibliographies in org-mode and useful bibtex tools to go with it.
heirloom-ex-vi - The Traditional Vi (vi with many enhancements from Gunnar Ritter)
libharu - libharu - free PDF library
signify - OpenBSD tool to sign and verify signatures on files. Portable version.
clawPDF - Open Source Virtual (Network) Printer for Windows that allows you to create PDFs, OCR text, and print images, with advanced features usually available only in enterprise solutions.