Needs must, as all the best cool kids are making Constraints Solvers in Python. Shall I rewrite Practical Python AI Projects: Mathematical Models of Optimization Problems in Ruby? Might be funs.

Anyway, Chapter 1 introduced a simple solver, but this is even simpler.

Trying to clean up this machine and it would appear I’ve got 21Gb of just Ruby.

I mean I like Ruby, sure. But I don’t need 4billion versions.

Found this little gem for styling broken images so they don’t look all of the wrong.

Really liking this, the empty images default is just awful.

img {  
  position: relative;
}

/* style this to fit your needs */
/* and remove [alt] to apply to all images*/
img[alt]:after {  
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #fff;
  font-family: 'Helvetica';
  font-weight: 300;
  line-height: 2;  
  text-align: center;
  content: attr(alt);
}

1. Elixir is not Ruby

2. It’s not quite Erlang either, Elixir is different

3. Assignment is not assignment, it’s making sure stuff matches

iex(18)> a = 1
1
iex(19)> 1 = a
1
iex(20)> 2 = a
** (MatchError) no match of right hand side value: 1
    (stdlib) erl_eval.erl:453: :erl_eval.expr/5
    (iex) lib/iex/evaluator.ex:257: IEx.Evaluator.handle_eval/5
    (iex) lib/iex/evaluator.ex:237: IEx.Evaluator.do_eval/3
    (iex) lib/iex/evaluator.ex:215: IEx.Evaluator.eval/3
    (iex) lib/iex/evaluator.ex:103: IEx.Evaluator.loop/1
    (iex) lib/iex/evaluator.ex:27: IEx.Evaluator.init/4
iex(20)> a = 2
2
iex(21)> 2 = a

If you’ve never heard of why the lucky stiff perhaps you’ve been living under a rock for the past 10 years and hitting your Ruby apps with a blunt tuna. They wrote a ton of stuff in Ruby such as Hpricot, Shoes, Syck, Camping, I could go on I won’t.

_why also wrote an online book called why’s (poignant) guide to ruby, it’s inspirational and funny and bat shit silly. You should read it. I managed to get a physical copy because someone decided to put lots of effort into making it so.

If you ever find this, buy it, read it, code till your fingers are a bit sore.

Saved some bandwidth and moved stuff around to get our house in order. Need to remember this example.

source = 'downloads.bigblindmedia/download/files/files/000/000/929/original/Banded_Sandwich_by_Iain_Moran_Download.mp4'
target = 'download/videos/files/000/000/929/original/Banded_Sandwich_by_Iain_Moran_Download.mp4'

s3 = Aws::S3::Client.new(
  region: 'eu-west-2',
  access_key_id: '********',
  secret_access_key: '********'
)

s3.copy_object(
  copy_source: source, 
  bucket: 'downloads.bigblindmedia',
  key: target
)

A very good friend of ours James Hayball produced some great artwork for an online RPG, using my likeness for inspiration. He wanted a haggerred, bitter, fearful man, drenched in existential turmoil and who forgot to take the bins out. He came to the right place.

NB. I look think I look 25 because I am deluded

I appear to have forgotten my OnePassword password again, and having reset everything I couldn’t work out how to force the deletion of the old credentials that clearly I wasn’t able to login with. I went round and round, I could even see a list of accounts but with no way to reset them. Turns out it’s rather expertly hidden under Help > Troubleshooing.

Not exactly where I was expecting but hey hey.

Just because I am incredibly mean. I put together this little Quiz Round.

Question 1

You’re basic.

05 REM ON VALUE GOTO LINE1,LINE2,LINE3.. demo
10 TEXT : HOME
20 INPUT "Enter number 1,2 or 3: ";A
30 IF NOT(A=1 OR A=2 OR A=3) GOTO 10
40 ON A GOTO 100,200,300

100 PRINT "LINE 100" : GOTO 500
200 PRINT "LINE 200" : GOTO 500
300 PRINT "LINE 300" : GOTO 500

500 END

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Question 2

I’ll give you anything you want, but I’ll always get my take.

import re
for test_string in ['555-1212', 'ILL-EGAL']:
    if re.match(r'^\d{3}-\d{4}$', test_string):
        print (test_string, 'is a valid registration for a snake')
    else:
        print (test_string, 'rejected')

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Question 3

Hopefully this one doesn’t fuck with your brain.

--<-<<+[+[<+>--->->->-<<<]>]<<--.<++++++.<<-..<<.<+.>>.>>.<<<.+++.>>.>>-.<<<+.

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Question 4

Wake me up.

<script>
var x = 5;
var y = 6;
var z = x + y;
document.getElementById("coffee").innerHTML =
"The value of z is: " + z;
</script>

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Question 5

Drink this, it will make you feel better.

true = String.ends_with?("Youth.", ".")

# True if any of list values match:
true  = String.ends_with?("Youth.", [".","?"])
false = String.ends_with?("      !", [".","?"])

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Question 6

I like to pummel it until it’s proper mashed up.

#!/bin/bash

string1="Linux"
string2="Hint"
echo "$string1$string2"
string3=$string1+$string2
string3+=" is a good place to fight"
echo $string3

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Question 7

Well it’s been 40 years of silence, it’s been 40 years of pain.

class Cat
  def can_claw_your_face_up?
    true # dat
  end
  
  def empathise_with_your_existential_crisis?
    !really?
  end

  private

  def really?
    true
  end
end

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Question 8

A, B, D, E, F, G, H, I , J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z

#include <stdio.h>
int main() {
   int year;
   printf("Enter a year: ");
   scanf("%d", &year);

   // leap year if perfectly visible by 400
   if (year % 400 == 0) {
      printf("%d is a leap year.", year);
   }
   // not a leap year if visible by 100
   // but not divisible by 400
   else if (year % 100 == 0) {
      printf("%d is not a leap year.", year);
   }
   // leap year if not divisible by 100
   // but divisible by 4
   else if (year % 4 == 0) {
      printf("%d is a leap year.", year);
   }
   // all other years are not leap year
   else {
      printf("%d is not a leap year.", year);
   }

   return 0;
}

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Question 9.

Queer eye for the the interwebs.

.cascading {
  border: 1px solid blue
}
.style {
  height: 100px
}
.sheets {
  border-radius: 5px
}

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Question 10

I’ve come to see the Oracle, I need answers.

procedure TForm1.Button1Click(Sender: TObject);
begin
  if OpenDialog1.Execute then
    Image1.Picture.LoadFromFile(OpenDialog1.FileName);
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  Image2.Canvas.CopyRect(
    Rect(0,0,Image2.Width,Image2.Height),
    Image1.Canvas,
    Rect(
      0,
      0,
      Image1.Picture.Width-50,
      Image1.Picture.Height-50));
end;

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In 10 years I have never once used installed RI or RDoc documentation, so let’s not bother installing it.

Adding this to ~/.gemrc will mean it is never built

gem: --no-document

And then nuke all currently installed documentation.

rm -rf `gem env gemdir`/doc

Boom.