muhuk's blog

The Sleeper Must Awaken

November 09, 2014

Making clecs Less Suicide-Inducing

After releasing the first major version of clecs I have started writing a tetris clone on it. I wanted to see if it all made sense. Sadly it wasn’t as much fun as I had intended it to be. This is a post about the pain points I discovered and how I intend to fix them.

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September 28, 2014

Is Clojure Homoiconic?

Homoiconicity means you can express programs in a programming language’s primitive data types. In other words; your code is data and data is code.

Clojure is, as other dialects of Lisp, a homoiconic programming language. Code is represented as lists, symbols, vectors and other Clojure data types. When the reader (parser) reads a source file, abstract syntax tree built looks exactly like the source[1].

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August 17, 2014

Lean Startup Notes - Part 2: Techniques

“If we stopped wasting people’s time, what would they do with it?”

—Eric Ries

This is the second part of my The Lean Startup notes. Enjoy!

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August 05, 2014

Clojure Macro Spotted In Wild: ? of useful

Let’s take a look at ? macro of useful this time. The docstring tells the purpose of this macro succinctly:

A useful debugging tool when you can’t figure out what’s going on: wrap a form with ?, and the form will be printed alongside its result. The result will still be passed along.

Before taking a look at the source code let’s go through some usage examples since this one’s a bit more tricky than defproject:

user=> (str (list 1 2 (+ 1 2)))
"(1 2 3)"

user=> (str (? (list 1 2 (? (+ 1 2)))))
(+ 1 2) is 3
(list 1 2 (? (+ 1 2))) is (1 2 3)
"(1 2 3)"

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August 01, 2014

Lean Startup Notes - Part 1: Theory

I have pre-ordered the The Lean Startup but then I haven’t opened its cover except to skim through a few random sentences now and then. I have finished it during my summer vacation. These are my short notes from the book. They are quite terse and mostly for my own reference. But take a look anyway, you might find these concepts interesting. In any case, I strongly recommend the book.

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