soveran

Joined 17 years ago

Karma

115

Submissions

Member since

Jun 4

Programmer from Argentina, currently living in France. I co-founded openredis (https://openredis.com), where I provide Redis hosting.

https://twitter.com/soveran

https://github.com/soveran

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Recent submissions

Comment · 2 years ago

I use it daily. I run a slightly modified version: I added line editing capabilities with linenoise and I use EREs. The most common use case for me is editing with :g/re, which allows me to see only the matching lines. If I want to keep only those lines, I type :v/re/d, and so on. I also invoke it regularly from my main editor when I find it more efficient for modifying some file or some region.

Comment · 3 years ago

For an alternative solution, describe the directed graph by listing the nodes and using whitespace to represent the arcs:

  $ cat riddle
  Vixen Rudolph
  Vixen Prancer
  Vixen Dasher
  Dancer Vixen
  Comet Vixen
  ...
  Vixen Dasher

Then use tsort:

  $ tsort riddle
  Dancer
  Donder
  Comet
  Vixen
  Blitzen
  Dasher
  Rudolph
  Cupid
  Prancer

Comment · 4 years ago

I've always used MessagEase (both on Android and iPhone). It is a keyboard layout that was originally designed for the Palm Pilot, and it is optimised for typing with one finger. I don't use any sort of autocompletion, yet I'm usually the fastest typist in the room. More info: http://www.exideas.com/ME/index.php

Comment · 8 years ago

I don't think the paper assumes a many worlds interpretation.

Comment · 8 years ago

Did you read the paper I linked to?

Comment · 8 years ago

All the paradoxes disappear if we use Quantum Field Theory instead of Quantum Mechanics. I would really like someone with deep knowledge on Quantum Theory to explain if something is wrong with a theory that otherwise makes a lot of sense to me. A good read on the topic is the paper "There are no particles, there are only fields" — https://arxiv.org/pdf/1204.4616.pdf

Comment · 9 years ago

The ten sample games:

Sample game 1 https://lichess.org/VMe0gfa2

Sample game 2 https://lichess.org/Zqwn4Gzk

Sample game 3 https://lichess.org/G2fPHci8

Sample game 4 https://lichess.org/LLt8wyYp

Sample game 5 https://lichess.org/3r6CXx3H

Sample game 6 https://lichess.org/sbdyUYS4

Sample game 7 https://lichess.org/88vsAftE

Sample game 8 https://lichess.org/1uvCwaeB

Sample game 9 https://lichess.org/743quCXj

Sample game 10 https://lichess.org/SkCjxXkb

Comment · 9 years ago

For scripting, I recommend the rc shell from plan9, which is the one I use for my shell scripts. It is only when I want to share a script with other people that I consider using /bin/sh, and even then more often than not I've gone for rc.

I invite you to read about it: http://doc.cat-v.org/plan_9/4th_edition/papers/rc.

I find the control structures simpler and more elegant, and overall its design feels more consistent. For example, consider an if statement in bash:

  if [ condition ]; then
    ...
  else
    ...
  fi

And now in rc:

  if (condition) {
    ...
  } else {
    ...
  }

Or a case statement in bash:

  case $1 in
    "bar")
      ... ;;
    "baz")
      ... ;;
  esac

And expressed in rc:

  switch ($1) {
    case "bar"
      ...
    case "baz"
      ...
  }

In the past, I've used it as my shell too, but now I use it only for scripting. I think you can install it in most platforms.

Comment · 9 years ago

In most platforms you can install the rc shell from plan9. It's what I use exclusively for my shell scripts. It is only when I want to share some script with other people that I consider using /bin/sh, and even then I've gone for rc nevertheless. Here you can read about it: http://doc.cat-v.org/plan_9/4th_edition/papers/rc

Comment · 9 years ago

We started openredis in 2011, and we reached the 1k customers mark a year later. It's a Redis hosting service for EC2, also available as a Heroku add-on. Aside from the fact that the Heroku add-ons program could be considered some sort of marketing, we've never paid a single ad. For us, the key to getting customers was word of mouth. In 2014, at the three year anniversary, I wrote a blog post about how we got started: http://soveran.com/turning-three.html

Comment · 9 years ago

I love the idea, thanks for the tip!

Comment · 9 years ago

I just updated the README with a gif of that video. Thanks for the idea!

Comment · 9 years ago

That's interesting: commands that consume everything in the stack. About saving/loading words: I have plans to work on that, it could be a very useful feature.

Comment · 9 years ago

I'm not the author of the post, I just wrote the tool. I agree with you that it's not groundbreaking technology :-)

In fact, the code is extremely simple. As I mentioned in the README, I've used dc a lot and what I propose with clac is an improvement (for my taste) regarding the UI, as there's an always-visible representation of the stack that gets updated as you type. I recorded a short video to show it in action: http://files.soveran.com/misc/clac.mov