cl-ppcre
chapel
cl-ppcre | chapel | |
---|---|---|
13 | 26 | |
291 | 1,741 | |
0.3% | 1.0% | |
3.7 | 10.0 | |
9 days ago | 3 days ago | |
Common Lisp | Chapel | |
BSD 2-clause "Simplified" License | GNU General Public License v3.0 or later |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
cl-ppcre
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Compile time regular expression in C++
I've never used cl-ppcre myself, but its docs[1] claim that it provides compile-time regexes:
> CL-PPCRE uses compiler macros to pre-compile scanners at load time if possible. This happens if the compiler can determine that the regular expression (no matter if it's a string or an S-expression) is constant at compile time and is intended to save the time for creating scanners at execution time (probably creating the same scanner over and over in a loop).
[1]: https://edicl.github.io/cl-ppcre/
- Ask HN: What are some of the most elegant codebases in your favorite language?
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sbcl and Let Over Lambda
A few weeks back Xach recommended cl-ppcre which i found educational.
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-๐- 2022 Day 1 Solutions -๐-
For simple string processing, there are some functions in the language, that you can find listed here (for string-specific functions) and here (for more generic sequence-handling functions). For anything involving regular expressions, cl-ppcre is the way, in particular the split and register-groups-bind functions.
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The unreasonable effectiveness of f-strings and re.VERBOSE
I must have a serious bug in my writing about this, because this was never about regex engines -- it's about literals and domain-specific sublanguages in general. Composing DSL programs by string concatenation is such a famous source of security bugs you see it in top-10 lists. I linked to the very similar example of a PEG parsing DSL.
But any regex engine that can work with a parse tree shows the same principle, e.g. https://edicl.github.io/cl-ppcre/#create-scanner2
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Adding Space to subst function
Take a look at - https://github.com/edicl/cl-ppcre
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Common Lisp ASDF maintainer considers resignation
And here's what I believe represents the reality of the situation... Stas was indeed tired of ASDF's changes. Now the nature of what changes to make is a matter of judgement of course, but in this case (I'm thinking of SBCL's bug report request to update ASDF: https://bugs.launchpad.net/sbcl/+bug/1826074), it would be a different matter altogether if the discussion was centered on how best to make the new ASDF work with SBCL, but the thread reads to me like a man who had to put up with too much breakage for the upteenth time. Now, if (for the sake of argument :D) the change was of the necessary kind -- think hardware changes or security issues -- I can still see myself feeling wronged, it's human to do so. Because I don't trust ASDF anymore or I feel as if they (or other people at each step of the process) have not shared enough of the burden. But from the discussions I have read (https://github.com/edicl/cl-ppcre/pull/30) what the ASDF maintainers want to change does not seem unreasonable and they are willing to share the burden. But let us say it's truly a 50/50 deadlock. Well then Linus is right, show us the code, who dares wins. And Stas certainly has enough on his plate. But that's why we must cooperate. You don't have to be a diplomat to know the difference when two people want to work together and when one party wants out. And this setting makes more sense when you read (https://bugs.launchpad.net/sbcl/+bug/1823442) where Stas honestly states he wants nothing more to do with ASDF. I don't think it's unreasonable to surmise there's a bit more going on here than plainly technical issues.
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Stas has alienated long-time ASDF maintainer Robert Goldman
Could you just direct me to some existing discussions, in order to save time? I already read this one.
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#"<your literal interpretation here>" (regular expression literals)
I plan to use the regular expressions with a cl-ppcre wrapper, also emulating various clojure regular expression operations. Similar to re21, which doesn't quite support the operations in the way I'd like (or match the clojure operations), and whose regular expression literal syntax is "#//".
chapel
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Introduction to GPU Programming in Chapel
Thanks, @subharmonicon!
While Chapel can run on many different systems, the main goal is making HPC programming much easier. Therefore, we are currently focusing on hardware that you can find in HPC systems (NVIDIA, AMD and Intel). Metal doesn't fall into that category, unfortunately. So far, the name came up infrequently in our discussions IIRC (especially targetting SPIRV), but we haven't heard from any [potential] user who may be interested in it. I would encourage you or anybody else interested in it to create an issue asking for the feature: https://github.com/chapel-lang/chapel/issues/new. Seeing public interest in that direction can change our prioritization.
One thing that I wanted to add that's not in the blogpost is the "cpu-as-device" mode. With that mode, you can use any machine, even one without a GPU, to write applications using Chapel's GPU features. That mode is for those who want to do initial development/debugging on their personal laptops before putting their application on an HPC system. In other words, while you can't use Metal directly, you can still write GPU-enabled applications in your Mac using Chapel, if the end goal is to run it on an HPC system. More details on cpu-as-device: https://chapel-lang.org/docs/main/technotes/gpu.html#cpu-as-...
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Mojo is now available on Mac
Agreed. Here is a serious contender[0] minus all the hype and the $100M in VC money. You would expect a minimum of interest given how Mojo is received by the community, but not really in practice.
[0]: https://chapel-lang.org/
- Chapel 1.32.0 Released
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Rust vs. Julia in Scientific Computing
Cray is pushing their own language as well, Chapel.
https://chapel-lang.org/
As for Julia on Cray,
"Julia โ The Newest Petaflop Family Language We Have Started to Love"
https://www.avenga.com/magazine/julia-programming-language
> Julia is one of the few languages that are in the so-called PetaFlop family; the other languages are C, C++ and Fortrant. It achieved 1.54 petaflops with 1.3 million threads on the Cray XC40 supercomputer.
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What languages are we missing on devenv.sh?
https://chapel-lang.org if possible, Nix was also recently mentioned in Chapel Workshop https://chapel-lang.org/CHIUW2023.html https://github.com/twesterhout/nix-chapel
- Chapel: Programming Language for Parallel Computing
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Getting Past โAmpersand-Driven Developmentโ in Rust
See Val for a possible step into that direction.
https://www.val-lang.dev/
Or how the Chapel language for HPC is going at it,
https://chapel-lang.org/
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Ask HN: How do I get the most benefit out of my programming language?
I suggest posting to a PLT focused resource, such as http://lambda-the-ultimate.org/
That said, a bit confused about the languages you reference in this context (Python, C#, JS) - didn't see any mention here or at your github repo of languages (some relatively ancient) in this space designed.
Sandia: Programming Languages for HPC [high performance computing] - is there life after MPI?
https://www.sandia.gov/app/uploads/sites/179/2022/04/SOS10-T...
Chapel:
https://chapel-lang.org/
https://en.wikipedia.org/wiki/Category:Array_programming_lan...
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Twelve Days of Chapel: Advent of Code 2022
We needed the implicit conversion to `uint` in order for the overload resolution rules to make reasonable choices when faced with binary overloads for all of the numeric types. The document I linked talks through the examples. The case we were facing is something that we shared with `C#` -- in `C#` terms, if I make overloads for `f` for all numeric types (see https://github.com/chapel-lang/chapel/blob/main/test/types/coerce/allNumericsBinary.cs if you want to know exactly what I am talking about), then `f( myInt, myUlong )` runs `f(float, float)` which makes no sense. Especially if you care about numerical accuracy or program performance.
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-๐- 2022 Day 8 Solutions -๐-
Code | Blog Walkthrough
What are some alternatives?
sbcl - Mirror of Steel Bank Common Lisp (SBCL)'s official repository
zls - A Zig language server supporting Zig developers with features like autocomplete and goto definition
one-more-re-nightmare - A fast regular expression compiler in Common Lisp
ATS-Postiats - ATS2: Unleashing the Potentials of Types and Templates
aoc2022
zig - General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
advents-of-code - ๐๐ Solutions for the yearly advent of code challenges
hacktoberfest-swag-list - Multiple companies go above and beyond for Hacktoberfest, and this repo tries to list them all.
advent-of-code-2022 - back to rust, except i'll use libs where it makes sense
gsoc-organizations - A site for viewing and analyzing the info of the organizations participating in Google Summer of Code.
advent-of-code - All my advent of code projects
jmurmel - A standalone or embeddable JVM based interpreter/ compiler for Murmel, a single-namespace Lisp dialect inspired by Common Lisp