notes

I had originally written a Lyric API as a hobby project way back using Node. I published it on github as a combination of API server hosted on heroku along with a library hosted on NPM. It still gets 50 downloads a week and the hosted heroku API server is actually used by many people even though it offers little to no functionality. I was recently looking at wtf dashboard and even contributed a small patch to it.

Suppose you have a HTTP request to be sent but don’t care about the result or errors. This request is sent through a function which is usually called inside a goroutine and is not in any way a core aspect of your main logic. The only important part is forming the actual request and the payload. When you wrote this function, you did not write tests as it would be a pain to make the function return something and check it.

I had an old Samsung N150 netbook lying around in my parent’s house. It was an amazing netbook and I remember fondly using it when my parents were not using it to browse the internet and sometimes even use it for school work. It came with Windows Vista if I recall correctly but I had installed Windows XP service pack 3 on it because as we know, Vista sucked! Well, the netbook was very solid, it even ran small games such as Fifa Manager etc and came with a solid keyboard, ethernet and VGA as well for connecting to a big screen.

After diving into Spacemacs yesterday, I was able to setup LaTeX properly. Only SyncTeX is left to be setup although, right now I can live without it. After tweeting about it, I got a reply about setting up Python on Spacemacs. I had installed the python layer but had not tested it. There was no hitch, although I faced a small issue with having python2 as well as python3 on my system.

I have been using Vim for text editing and even Vim mode even in Sublime Text. Although, I wanted to use Org mode so I switched to Spacemacs with Evil mode that gives the best of both worlds. I had been using TeXworks and TeXstudio for editing and building LaTeX documents but now that I have Emacs, I wanted to try out the pdf-tools layer and latex layers so that all my work can be done from inside Spacemacs itself.

I downloaded a .rpm and double clicked it to install it and it started yumex-dnf. But for some reason it crashed and dnf was locked. I fixed it using yumex-dnf --exit and installed the rpm using sudo dnf install cacher-1.1.10.x86_64.rpm

xfce4 has default media key settings for Pragha music player. Although, if you use clementine music player you can use keyboard shortcuts to control it with DBus and MPRIS. Clementine is known as org.mpris.clementine and you can add the following entries to your Keyboard Settings > Application Shortcuts If you use spotify, it is registered as org.mpris.MediaPlayer2.spotify on qdbus. qdbus org.mpris.clementine /Player org.freedesktop.MediaPlayer.Next qdbus org.mpris.clementine /Player org.freedesktop.MediaPlayer.Pause qdbus org.mpris.clementine /Player org.

def is_prime(n): return not re.match(r'^.?$|^(..+?)\1+$', '1'*n) This works by first converting the number to unary, i.e. 5 will be ‘11111’ and 3 will be ‘111’ and so on. First, it tries to match 0 or 1 in the LHS and then uses backreferences to try and match multiples of 2, 3, 4 and so on until a match is found or string length is exceeded. For a deeper analysis please read: https://iluxonchik.

I’m going to use python. Regex can be used by using the re library. You should not refer to this post as these are just notes, it would be better to follow the actual documentation of the library. To use regex, which uses backslashes \ we must use raw python strings like r"\n". . matches anything but a newline \d matches 0-9 while \D matches anything but digits. Similarly, \w matches word chars.

Some journal publications require you to put author biography for each author with their pictures. For this I found the _picins _package. To install this package you can run the following commands sudo mkdir /usr/share/texmf/tex/latex/picins sudo wget -O /usr/share/texmf/tex/latex/picins/picins.sty http://ctan.imsc.res.in/macros/latex209/contrib/picins/picins.sty http://mirrors.ctan.org/macros/latex209/contrib/picins/picins.sty sudo /usr/bin/texconfig rehash So, then you can use the following latex code for biography of an author: \parpic{\includegraphics[width=1in,clip,keepaspectratio]{figures/photo.eps}} \noindent {\bf Lorem Ipsum} dolor sit amet, consectetur adipiscing elit.