arcfide

12 ms·

61.
by arcfide 10y ago
I don't have it anymore, but I did a live coding session in ed(1) where I edited thousands of lines of XML code as a demonstration of using ed. It's a very powerful editor, almost too powerful for my "simple tools" aesth
62.
by arcfide 10y ago
1. http://www.jsoftware.com/papers/fork.htm See Hook and Fork. This was the first introduction of Trains programming in APL, I think. You can see help.dyalog.com for more information of the current implementation in Dy
63.
by arcfide 10y ago
Thanks for the questions! 1. I've addressed this a bit more in the previous threads on this video and the discussion that led up to the video. It's actually less write once than other stuff. However, to go with that, it's als
64.
by arcfide 10y ago
Good points here. I think we agree at some level here. Putting aside practical readability, we can focus on "onboarding overhead." You're also right about community. Obviously moving from C to Java or Java to C++ is going to
65.
by arcfide 10y ago
Oh wait, so you're not preserving the subsequence, you just preserving the sum. So it's a standard scan. So my original translation is correct, my subsequence preserving version is doing a bit more than this by preserving the suba
66.
by arcfide 10y ago
Ah, if we have to preserve the sequence: ((⊃∘⍒0⌷⍉)⌷⊢)(+\,∘⍪,\)
67.
by arcfide 10y ago
I believe the translation of |/0(0|+)\ is ⌈/0,(0⌈+)\
68.
by arcfide 10y ago
I just looked at the meaning of life. That's unlikely to work with many "hosted" APLs because of the use of eval, which is a security concern in an online REPL. However, if you remove the execute you can still get a string ve
69.
by arcfide 10y ago
Personally, I wouldn't want to edit my posts on a regular basis. I consider them too verbose, but I struggle to condense them.
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by arcfide 10y ago
I'm not sure what that would look like.
71.
by arcfide 10y ago
Define readability. The whole point of this video presentation was to show people how to navigate the source code, and then to decide whether they still felt the design was needlessly obtuse. APL programs benefit from efforts to simplify ju
72.
by arcfide 10y ago
J's ideas are terrific. Dyalog is actively incorporating the ideas in J back into APL. J's choice to use ASCII characters instead of Unicode is a historically understandable design decision that I feel should no longer constrain t
73.
by arcfide 10y ago
Remember that the FinnAPL library expects that you know your APL environment and are able to adapt the idioms to suit. You should also consider "Notation as a Tool of Thought" by Kenneth Iverson (his Turing Award lecture) to be re
74.
by arcfide 10y ago
The Mastering Dyalog APL book is available as a free PDF, too. Though the paper version is more enjoyable, and serves as an excellent monitor stand in need, as well. As a Scheme programmer, one of the first things I did when learning APL wa
75.
by arcfide 10y ago
Oh, another thing I thought about, the BSD people probably won't like that it's AGPL dual-licensed (commercial licenses available). Unfortunately, that's the only reasonable license for this right now. One day, if the project
76.
by arcfide 10y ago
Actually, I'm an old school OpenBSD user who still programs with ed(1). Check misc@ out back a number of years. I've had to move away because OpenBSD isn't the greatest platform for doing high performance GPU research. :-( Th
77.
by arcfide 10y ago
I cover how I debug my program in the video. I use two utilities, pp and px that are identity functions that print their results as side-effects. I'm happy that I'm working in a non-lazy language. This compiler is poetically drive
78.
by arcfide 10y ago
Among the APL language families I would recommend are Dyalog APL and J. J is great for some of the ideas it has implemented and to gain a flavor of Iverson's vision of APL as it evolved. Dyalog APL is, IMO, more practical, and we are q
79.
by arcfide 10y ago
1. There was a lot surprising throughout this whole process. For a while I didn't think it could be done. That it could be done was surprising in itself. That using trains actually improved my life was also surprising. There are some &
80.
by arcfide 10y ago
And actually, at some level, it is. If ASM is the right level of abstraction for your core problem, using ASM to solve the problem is probably infinitely more simple than using Scala to implement ASM semantics. But saying that you can easil
81.
by arcfide 10y ago
In 2017 I can mostly only recommend Dyalog APL. Keep in mind that I am highly biased because my compiler is written in Dyalog APL, and they sell my compiler commercially. However, IMO< Dyalog APL is the place to start with APL in 2017.
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by arcfide 10y ago
Going further with this idea, at the beginning of this video I point out an important "metric" that I use to evaluate simplicity of the code. This is the ease with which I can manipulate the code base using "ascetical" t
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by arcfide 10y ago
This question has been presented to me on this research, and this presentation I am giving in the video above is actually a demonstration implicitly addressing just such an issue. If you watch the video you'll see some examples of how
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by arcfide 10y ago
My take is that, yes, people don't like APL, and are biased against it. It's a case of not understanding/knowing what they don't know. I was in the same boat, which is why my discovery of APL was so interesting. APL on t
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by arcfide 10y ago
Unfortunately, no. There's a lot of code demonstration, some REPL work, and interacting with the source, so I'm not sure that the transcript would communicate things adequately without significant editing and adaptation. I would l
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by arcfide 10y ago
This is an AMA for the linked compiler presentation by request. It is not live video, but I will be answering your questions directly here on Hacker News. This was requested due to some logistical issues and so forth during the live present
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AMA: Explaining my 750 line compiler+runtime designed to GPU self-host APL(youtube.com)
335 points by arcfide 10y ago|155 comments
88.
by arcfide 10y ago
The official live stream is up now here: https://news.ycombinator.com/item?id=13638086
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by arcfide 10y ago
Here are some things that I'll try to remember to get to: 1. Disposable Code 2. History of the Design of the compiler, including all the other stuff I've tried. 3. My own programming background. 4. Comments in the code 5. Smaller
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by arcfide 10y ago
The live session is up and running now. You can find more information about the stream and ask your questions at the following post: https://news.ycombinator.com/item?id=13638086

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