Articles tagged 'programming'

The Oberon-07 language report is 17 pages

Niklaus Wirth turned 80 this year, and when stumbling on this link on HackerNews, I was reminded that I have had some notes sitting around in my drafts for a long time.

The Oberon-07 language report

You can find the PDF here

It starts with an Albert Einstein ...

Writing a (Ruby) compiler in Ruby bottom up - step 21

I've been lazy lately... Well, not really, I've been extremely busy, but I ought to have fit this in earlier. It's gotten harder and harder to get done too, since it's now more work since I had to go back and figure out a lot of the reasons for what I'd ...

A pitfall of the Ruby Range class

I tweeted about this, but figured it deserve a more lasting treatment.

If you've ever used Range#min or Range#max you may have inadvertently slowed your code significantly.

Both of those ought to be O(1) - constant time. After all, a Range in Ruby consist of two values, and though you can't ...

Writing a compiler in Ruby bottom up - step 19

If you've been following the commits to the Github repository, you've already seen this go in... Specifically, this was the state as at the end of this post. Here's finally some ...

Writing a (Ruby) compiler in Ruby bottom up - step 20

You may or may not have seen my recent post where I admitted to more or less having decided to make my compiler project a Ruby compiler. On the downside this means a lot of complexity that may make it harder to follow. On the upside... Well, you get to read ...

The problem with compiling Ruby

Compiler technology is one of my hobbies, most recently satisfied with my project to write a series of post of how to write a (Ruby) compiler in Ruby. Since I really like Ruby, it's natural that I've done a fair amount of thinking about compiling Ruby, and what the problems ...

Writing a compiler in Ruby bottom up - Milestone: It can parse itself...

Yeah, I know, it's a long time since the last part. That doesn't mean things have stopped, though I've been extremely busy.
As always, if you don't know what I'm talking about, take a look at the series.

To see what I've been up to, take a look at the Github ...

The Ruby Object Model - Structure and Semantics

As part of my compiler project, one of my imminent decisions is what object model to use, and sine I like Ruby it seemed a good time to go through Ruby and look at the guts of the Ruby object model. If you've dabbled in meta-programming etc. for Ruby this ...

Writing a compiler in Ruby bottom up - step 18

Plugging in an operator precedence parser

The code as at the end of this part is available here.

A while back I wrote a post about writing a simple operator precedence ...