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vyuhon Short URLs: Why and How

I like this idea, It'll be good to have the best of both worlds. Is there a way to optimize search engine visibility for such short urls? perhaps with a good title, meta tags having keywords etc.? Is there a HTML meta tag that gives the search engine crawlers an alternate hierarchical url for the same page? I believe setting up the server to do this is not too difficult.

vyuhon Ask HN: HN-Post of two large maps showing chemical transformations

https://hn.algolia.com/?q=bio+chemical I think this is it. keyword: bio chemical pathway

vyuhon Nim 1.6

> Fast compile times: a full compiler rebuild takes ~12s (Rust: 15min, gcc: 30min+, clang: 1hr+, Go: 90s) [2].

Whoa, this really surprised me!

vyuhon Awk: The Power and Promise of a 40-Year-Old Language

I believe the source is https://mathwithbaddrawings.com/2015/12/16/good-mathematicia...

vyuhon Awk: The Power and Promise of a 40-Year-Old Language

"A good programmer uses the most powerful tool to do a job. A great programmer uses the least powerful tool that does the job." I believe this, and I always try to find the combination of simple and lightweight tools which does the job at hand correctly.

Awk sometimes proves surprisingly powerful. Just look at the concision of this awk one liner doing a fairly complex job:

    zcat large.log.gz | awk '{print $0 | "gzip -v9c > large.log-"$1"_"$2".gz"}' # Breakup compressed log by syslog date and recompress. #awksome

Taken from: https://mobile.twitter.com/climagic/status/61415389723039744...

vyuhon Coding with Character

Agave[1] and Lekton[2] are among my favorite monospace fonts.

[1]: https://app.programmingfonts.org/#agave

[2]: https://app.programmingfonts.org/#lekton

vyuhon Flame: A PureScript front-end framework inspired by the Elm architecture

I think if someone implements this thing without breaking backward compatibility, then it will be valuable even as a fork of the original elm compiler. I think the License allows this.

Also, Evan has not closed this issue since 2015. Most probably it is about "too much work to get it right" rather than "I'm not convinced that we need it".

vyuhon Flame: A PureScript front-end framework inspired by the Elm architecture

Can you (or anyone) point me to the files where this `comparable` logic is implemented in elm compiler? I'll try my hand at least making Bool and Record types Comparable. Or maybe implement comparable Enumerated Type in elm which behaves mostly like custom Union Type.

vyuhon Flame: A PureScript front-end framework inspired by the Elm architecture

I am hopeful about using Flame (posted link) along with https://pursuit.purescript.org/packages/purescript-ordered-c....

Looks like purescript development requires node, purescipt compiler, and spago build tool. I have set these up. In future I'll try to learn Flame framework and then adapt my elm code to this.

vyuhon Flame: A PureScript front-end framework inspired by the Elm architecture

Elm handicaps my attempts of "making impossible states impossible" because:

- I can't have Sets of arbitrary Types they must be `comparable`. I cannot create a custom comparable type.

- Records, Bool and custom Union Types are not `comparable`

- Bool and Simple Union Types could have been comparable if their comparison worked like they were Enumerated Types. Elm does not have Enumerated types.

Basically https://github.com/elm/compiler/issues/1008 made me look for better alternatives.

vyuhon Inkscape 1.1

I agree, this can be shocking for many casual users. I think there is an option to save a "plain SVG" as opposed to "inkscape SVG". Does "plain SVG" also include such information?

vyuhon Elm-visualization: A data visualization library for Elm

Examples: https://elm-visualization.netlify.app/

vyuhon Zola: A fast static site generator in a single binary

A few months ago I tried my hand at this because it had some better defaults. Also, I didn't like camel case variables everywhere in Hugo. Then, I gave up when I realised that Zola does not even allow YAML config files. Nit picks everywhere..

vyuhon The Zen of Erlang (2016)

This is a loose transcript of presentation given at ConnectDev'16.

Video of the presentation: https://youtu.be/4ZIPijEqrNI

vyuhon Hindley-Milner Type Inference (2012)

The algorithm, the type system, and some of the logical background are explained in this tutorial, along with an implementation in standard ML.

http://steshaw.org/hm/hindley-milner.pdf I found this 30 page PDF document very helpful in understanding the Algorithm.

vyuhon Linux Mint drops Ubuntu Snap packages

When I removed snapd from Ubuntu, all installed snaps and their mount points still remained. Then I reinstalled snapd to remove the snaps. I could not find a command to force remove a snap if other snaps depend on it. So I had to delete each snap one by one manually, taking care of dependency tree.

vyuhon Advice to Young Web Developers

> Even if you need to preserve client state between page loads (for e.g. music or video playback) you can let the browser do most of the heavy lifting by fetch()ing a new page and replacing your content container at the DOM level.

Anyone knows of some easy to learn example of such DOM replacement?

vyuhon Show HN: Simple PDF to PNG Server

"to convert the PDF (or Word doc, XLS, etc) remotely without the file ever touching the user's device"

This made me think that the site accepts a URL to a PDF/XLS/DOC file and returns PNG.

vyuhon Organice – Using Org mode from a smartphone or browser [video]

Github: https://github.com/200ok-ch/organice

Web Browser App: https://organice.200ok.ch/sample

vyuhon A Problem of Ramanujan

"At the age of 17, Nobel Laureate Physicist Abdus Salam found a 2-page long elegant proof of one of Ramanujan's problems. This was his 1st paper ever published..."

https://twitter.com/fermatslibrary/status/118916752447211929...

vyuhon Organice – Org mode without the dependency of Emacs

The organice web app. https://organice.200ok.ch/sample

vyuhon Notepad++ repository is being spammed after “Free Uyghur” release

The issues page is https://github.com/notepad-plus-plus/notepad-plus-plus/issue.... Spam started 16 hours ago with issue #6286. The issue count stands at #7480 at the moment. ~1200 issues in 16 hours!

vyuhon Lesser Known Coding Fonts

Agave[1] and Lekton[2] are among my favorites.

[1]: https://app.programmingfonts.org/#agave

[2]: https://app.programmingfonts.org/#lekton

vyuhon Deep Learning with PyTorch: A 60 Minute Blitz [video]

I posted this link but now the title has somehow changed. I do not know what is the policy on HN. But the title saying "[video]" might give a wrong impression that this points to a one hour long video. The link points to a tutorial which embeds an entirely optional two minute video that introduces the main content contained in five web pages.

vyuhon Jtc – CLI tool to extract, manipulate and transform source JSON

The author has also written related tools. One to convert XML to JSON and back (https://github.com/ldn-softdev/jtm) and another to convert JSON to SQLite tables (https://github.com/ldn-softdev/jsl). Combining these with the hxnormalize tool ( https://www.w3.org/Tools/HTML-XML-utils/man1/hxnormalize.htm...), one can do very sophisticated manipulation on HTML web pages.

HTML -> XML (via hxnormalize) -> JSON (via jtm) -> process using jtc (or even jq)

vyuhon Jtc – CLI tool to extract, manipulate and transform source JSON

https://github.com/ldn-softdev/jtc#jtc-vs-jq

vyuhon Sudoku Solver in Common Lisp (2009)

I wrote a program that generates all sudokus that satisfy constraints given in a partially filled grid. I thought it might be feasible to find out the distribution of 81 digit numbers that are valid Sudokus by such brute force. Since there are so many sudokus, I made the program capable of resuming an interrupted computation using a dump file. All this I did in C. It was quite a learning experience. Here goes: (https://github.com/vyuh/sud.c)

For some fun I also translated the algorithm to Javascript (https://github.com/vyuh/sud.js) and Java (https://github.com/vyuh/sudoku-lister/blob/master/java/sudok...). The javascript code is used in a toy browser application i made (https://su-do-ku.herokuapp.com/).

Some day I might generalize the program to larger Latin Squares (https://en.wikipedia.org/wiki/Latin_square).

vyuhon How to delete Facebook and not lose your friends and photos

When I downloaded my Facebook data few years ago, my notes were missing. I had to reactivate my account, save them as HTML pages, and queue account for deletion again. One should not think of profiles on these sites as reliable archive of ones data. There is no alternative to local backup for this. With deletion one loses so many little memorable things, for example comments.

vyuhon St – A simple terminal implementation for X

In config.h:

  /*
   * appearance
   *
   * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
   */
   static char font[] = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";

Try to specify font name in this format.

vyuhon Show HN: My first web app – PDF memo creator

I tried to use it on Opera Mini native on Android. Download dialog is shown but it never starts transferring data. No error message shown.