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kdb | hebigo | |
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7 | 21 | |
401 | 21 | |
1.2% | - | |
4.0 | 1.9 | |
9 days ago | about 1 year ago | |
HTML | Python | |
Apache License 2.0 | Mozilla Public License 2.0 |
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kdb
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Function Composition in Programming Languages – Conor Hoekstra – CppNorth 2023 [video]
> And later array languages have mostly abandonned the crazy names in favour of actual words
Sharing this without comments:
- Want cleaner code? Use the rule of six
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If risc-v is successful, no need of those backdoor injectors which are compilers anymore (and absurd and grotesque bloats). Just write risc-v assembly without abusing the macro preprocessor.
ah, I see you too are a disciple of the kdb school
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if you code in J for 6 months, you will no longer think in loops, and if you stay with it for 2 years, you will see that looping code was an artifact of early programming languages, ready to be displayed in museums along with vacuum tubes
Ah, after all these years, you've finally found it: a worthy opponent for kdb source code.
- An oral history of Bank Python
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Breaking into q/kdb+
I am an experienced developer with 10+ years in various other languages (c++/python/ some scala). I am interested in getting into q/kdb+ after a recommendation from a friend in the industry. Does anyone out there have any suggestions on how to break into the industry Ive done the courses on https://code.kx.com/ and read a few suggested books but cant find any officially recognised certs I could get, and practical experience is limited ! Im not sure even id hire myself into such a role
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Are you interested in learning about low latency zero allocation programming?
For the curious, when I first ran into it it looked like this. That is not minified code, it's how people who write K write Java code. It was expected you would take that file and include it in your sources somewhere. The KDB protocol is actually very simple, basically writes out the types with a type tag, length and then the data in binary.
hebigo
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What is the point of the if __name__ == "__main__":, i.e. why use a file as both script and module?
The Lissp transpiler incrementally compiles and executes each top-level form to Python. It needs to do this in case there's a macro definition that might affect the compilation of a subsequent form. If it's only executing definitions, this is harmless, but if you want to precompile the main module, it needs the guard, or the side effects will happen too.
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What's the most hilarious use of operator overloading you've seen?
If you want Python to be as customizable as Lissp, check out Hissp (and Hebigo).
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Want cleaner code? Use the rule of six
Python's lambdas can have as many lines as you want. Just wrap parens around it. Hissp uses this form as a compilation target. Its REPL shows the Python compilation. Play around with it til you get it: https://github.com/gilch/hissp
- What would be your “perfect” programming language?
- Kamby – A programming language based on Lisp that doesn't seems like Lisp
- Wisp: Whitespace to Lisp
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Is ECMAScript really a dialect of Lisp?
The original Lisp's S-expression syntax was just supposed to be an intermediate language used by the compiler when processing the real language based on M-expressions, which kind of never took off. Numerous alternatives to S-expressions have been proposed, and some retain homoiconicity, another feature diagnostic of a Lisp (and one that ECMAScript lacks). For example, see Hebigo's readme, which shows a direct correspondence between its Python-like syntax and that of Hissp's default reader (Lissp), which uses the S-expressions. Julia can also be written in S-expressions, but this usually only used in macro definitions.
- Why Hy?
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Land of Lisp
I think LoL is too CL-specific. If you know both languages first, you can pretty much translate, but since they'd be trying to learn Lisp in the first place, this is a bad idea.
On the other hand, [Hissp][1] has a pretty good tutorial for anyone coming from a Python background.
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Interesting or distinctive lisps?
Hebigo: a whitespaceLisp isomorphic to Hissp that looks like Python.
What are some alternatives?
arctic - High performance datastore for time series and tick data
hy - A dialect of Lisp that's embedded in Python
sqlite_http_csv - simulation kdb+ http behavior for sqlite.
hy-lisp-python - examples for my book "A Lisp Programmer Living in Python-Land: The Hy Programming Language"
Agrona - High Performance data structures and utility methods for Java
slime - The Superior Lisp Interaction Mode for Emacs
cinder - Cinder is Meta's internal performance-oriented production version of CPython.
smtfmt - An SMT-LIB formatter.
jsource - J engine source mirror
coalton - Coalton is an efficient, statically typed functional programming language that supercharges Common Lisp.
javakdb - Using Java with kdb+
smart-imports - smart imports for Python