工具与资源github.com
Vis：类 Vim 文本编辑器
Vis: A Vim-Like Text Editor
2016 — 2017，它一次次回到首页
黑点是上首页（≥ 50 分）的那次投稿，空心点是没冲上去的投稿，点越大分数越高。
导读
Vis 是一个类 Vim 的模态文本编辑器，目标是结合 vi 的编辑方式与 sam 的结构化正则表达式，同时保持代码库小而可改。它用 Lua 扩展，采用宽松许可证（部分 sam 代码除外），并明确列出非目标以避免功能膨胀。页面是它的 GitHub 仓库。
为什么经久不衰：它证明了不靠插件和庞大功能也能有强大编辑能力：极简、可读可改、结构化正则和宽松许可证，让它成为厌倦 Vim 臃肿者的长期参考。
HN 评论精选
长期 vim 用户认可其简单、Lua、可改代码和结构化正则，但缺 tag 浏览与折叠。
我用 vis 作为主编辑器已经六个月，相当满意（我是长期 vim 用户）。主要卖点：编辑器简单易学，文档约 650 行 man page；简单但包含 vim 和 sam 最有用的特性；没有功能膨胀，不像 vim；没有 vimscript，用 Lua；代码可读可改，不像 vim；结构化正则表达式。目前最想念的是标签浏览和代码折叠；在足够干净模块化的代码库里不太想念，但分析大型复杂或写得差的代码时不可或缺，那种情况我会切回 vim。它们的实现也在考虑中。强烈推荐给想找更好 vim、并且懂得如何在不用海量插件的情况下使用 vim 的人。
gwn7查看英文原文
I've been using vis as my primary editor for six months, and I'm quite happy with it. (I'm a long time vim user.) Main selling points for me: - Simple editor, easy to learn, with a ~650 line man page as the documentation - Simple, yet has the most useful features from the great vim and sam editors - No feature bloat - unlike vim - No vimscript (lua instead) - Readable and hackable codebase - unlike vim - Structural regular expressions For now the unavailable features that I miss the most are tag browsing and code folding. I don't miss them very much in sufficiently clean and modular codebases, but they are indispensable when analyzing large, complex, or badly written code. I switch to vim when that is the case. I should say that their implementation is considered though: https://github.com/martanne/vis/issues/547 https://github.com/martanne/vis/issues/342 vis is highly recommended to anybody looking for a better vim and appreciate & know how to use vim without a gazillion of plugins.
用不可变 piece table 和自动关闭文件展示极简协同设计。
几个月前我全职用 Vis 两周，挺不错（我是 Emacs 用户，所以这是有时限的实验）。Vis 是 suckless 哲学的好例子，也体现了 Guy Steele 的观点：通过功能间的协同来消除对某些功能的需求。例如它用不可变 piece table，只需移动指针就能支持撤销；这意味缓冲区一直打开会占用越来越多内存。它没有实现“垃圾回收器”，而是选择在文件不在屏幕上显示时自动关闭它。
PuercoPop查看英文原文
I used Vis full time for a two weeks a couple of months ago. It was pretty nifty. (I'm Emacs user so this was an time-bounded experiment). Vis is a great of example of the suckless philosophy and of Guy Steele's point about removing the need of features by having synergy between other features. For example they have an immutable piece table to support undo by just moving a pointer. This would mean that as the buffer remains open one would use more and more memory. Instead of implementation a 'garbarge collector' they chose to automatically close a file when its not shown on the screen.
赞赏明确非目标避免臃肿，但遗憾没有 vimdiff/diff 模式。
称赞开发者列出“非目标”。太多软件项目因为承担次要功能而失去焦点、变得臃肿。项目可能因担心排斥想要某些功能的人而不愿列出非目标。看这份清单，排除了一些相当不错的功能，比如网络支持、编辑压缩文件或 tar 文件。我猜预期是仍可通过编辑器外部的命令完成，这是一种干净的做法。不过，没有 diff 模式？vimdiff 很棒！我不确定没有多工作区怎么恢复这功能。也许答案就是不恢复：日常编辑用 vis，需要时再拿出 vimdiff。
loudmax查看英文原文
Kudos to the developers for listing non goals. Too many software projects lose focus and become bloated because they take on features that are secondary to the main purpose. Projects may refrain from listing non goals for fear of excluding people who may want some of those features. And looking at the list, there are some pretty nice features excluded. For example network support, or editing compressed or tar files. I guess the expectation is that these can still be accomplished by leveraging commands outside the editor. This is a clean approach. Okay, but no diff mode? vimdiff is fantastic! And I'm not sure how you recover that functionality without multiple workspaces. Maybe the answer is you don't. Use vis for normal editing and pull out vimdiff only when you need it.
推荐阅读结构化正则的原始论文，以理解 vis 的核心特色。
任何想了解什么是结构化正则表达式、以及它为何优于普通正则表达式的人，都值得读一读这篇 Bell Labs 的论文：http://doc.cat-v.org/bell_labs/structural_regexps/se.pdf
pmoriarty查看英文原文
Anyone interested in what structural regular expressions are and how they're superior to ordinary regular expressions is encouraged to read: http://doc.cat-v.org/bell_labs/structural_regexps/se.pdf
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