Full solution for today (spoilers!). Note: I did slightly change my solutions template after writing this blog post, so the final solution is structured slightly differently than the code in this post. The functionality itself hasn’t changed.
Given a list of alphanumeric strings, find the first and last digit on each line (they may be the same). Concatenate each pair and sum them.
Another year, another Advent of Code.
Like last year, we’re doing Rust. I’ve really grown to love the language since last year… and hopefully I’ve learned a bit more about how to write more ‘proper’ Rust. I know I had some issues last year. Functional… but it could be better.
Let’s see how it goes!
For full solutions, as always, I post to GitHub (including previous years and possibly some I haven’t written up yet): jpverkamp/advent-of-code
It’s been a bit, but I hope it’s worth it. StackLang, part 5: compiling to C!
StackLang, part 4: an interpreter. Here we go again!
This time, the goal is to actually get code running
StackLang, part 3: parsing. This is going to be the most complicated one thus far! Onward.
StackLang, part 2: lexing.
It’s quite often the simplest part of implementing a programming language (although parsers for s-expression based languages come close), but it’s still something that needs done. So here we go!
I enjoy writing programming languages. Example: Tiny. Let’s do that again.
This time, StackLang:
{
@[n fact]
1
{ n 1 - $fact fact n * }
N 1 <= if
} @fact
5 $fact fact writeln
Bit of gibberish there, I suppose, but the goal is to write everything in a postfix/stack based model. So n 1 - $fact fact n * is equivalent to fact(fact, n - 1) * n in a more traditional language.
Over the next few posts, I hope to write up where I am thus far and what’s next.
Another Redis in Rust series. It’s really starting to come together now!
In this post, updating the state to store expiration times + a thread to handle said eviction + the implementation of a small pile more of the general Redis functions.
And I’m back. It’s been a busy month with the [Genuary]([Genuary 2023]) series and life in general, but I’m still thinking about Redis in general 😄.
Up this time, let’s see what the official redis-cli app does when talking to our client and actually start handling some commands. Specifically, the very basic commands: SET and GET. With that, we would actually have a (very very basic) keystore up and running!
Okay, we’ve got a server and we can ping it. Let’s actually make a simple client, so I don’t have to do funny things with echo any more. Specifically, let’s make a REPL!