Questions tagged [raku]

For questions relating to the Raku programming language (formerly known as Perl 6).

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2
votes
1answer
53 views

Raku multiplication using prompt and say

I have extensively consulted Raku documentation and have tried many combinations to finally arrive at this working solution. ...
4
votes
4answers
329 views

How can I make my program that calculates π faster?

For my first Raku program, I thought it might be a fun challange to port over a program I'd written in C# about two years ago, and I was right: it was. There's just one problem: while the C# program ...
3
votes
1answer
35 views

Linux: Raku script to open files from terminal and ask for deletion

Raku script to open files from terminal with xdg-open and, with del option, asks for deletion. Happy to receive Raku syntax improvements. Thanks! ...
5
votes
2answers
80 views

Range check operator

I'd like to improve this operator code if I can. I don't know enough Raku to write idiomatically (or any other way for that matter), but suggestions along those lines would be good also. ...
3
votes
0answers
69 views

Raku and the Knapsack

The following is a solution to the knapsack problem and supposed to be my entry to this weeks perl challenge. I wonder if this is a good use of dynamic variables or is it too confusing? I use them ...
2
votes
1answer
38 views

Ranges of enum members that dwim

Inspired by this blogpost I decided to try and make it possible to have ranges of enum members that dwim, aka. that contain the actual members and not a stringified ...
6
votes
1answer
62 views

Raku / Perl6: A module to enable escape codes in the win32 console, naming suggestions

I have this little project i am about to release. https://github.com/holli-holzer/perl6-Win-VT I would be happy about a code review and suggestions for a better name. Discussion in IRC yielded ...
6
votes
3answers
127 views

perl6: html color gradient generator

Edit: The comments have been incorporated to this module in GitHub. The final code has been included at the end of this thread. Thanks very much for the detailed and brilliant suggestions. Inspired ...
3
votes
1answer
169 views

Parsing a C++ function declaration with Perl 6 grammar

I wrote a Perl 6 grammar to parse a C++ function. My final goal would be to parse an entire header. The aim is not to correct C++ syntax errors, but to parse valid C++. Do you have some advice or ...
4
votes
0answers
56 views

Correct user typos in a C source file using Perl 6 grammar

To learn about Perl 6 grammars, I created a simple parser for C source files. Note that this is a constructed example motivated by this question. The point is to parse a C source file and correct user ...
11
votes
3answers
153 views

Mass and length calculator using Perl 6 custom operator

I am studying chemistry in the university, and then I try to write all the things in the textbook with Perl6 or Perl, like balancing the chemical formula or other process! Then I encountered the ...
4
votes
1answer
81 views

Get sum of an array in 3 ways, for, while and recursive

So i was trying to find sum of an array using 3 ways in perl6 for while recursive (I know there are inbuilt perl6 functions for this) I want to know if there is a better way to do this or is this ...
5
votes
2answers
131 views

Break an array into n equal or almost-equal sized sublists

I want to break a larger list into $num-lists smaller lists. I thought that there might be an option for rotor that would ...
7
votes
3answers
221 views

Perl 6 oneliner to sum up all numbers in a text file

The task is to sum up scores mentioned in a text file. Scores are floating point numbers as defined by the regexp float immediately preceded by a * character to ...
12
votes
1answer
169 views

Copy directories while changing Unicode filenames to ASCII

I created a short Perl 6 script copyfnameascii.pl to copy a file hierarchy I have, applying an URL Decoding to the names of folders and removing non-ASCII ...