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May 01, 2015 [your code here] Rounding real numbers | ||||
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A process for rounding numbers. This incarnation can be run like round 1.23 3.4 4 or by reading lines from stdin. It could be simplified as an example by getting rid of the argument-processing form. It shows off templated function composition using std.functional.pipe, ct-regexes, and component programming. I wrote this after realizing that there wasn't a convenient UNIX utility for doing this and use it regularly. --------------------------------- import std.algorithm, std.conv, std.functional, std.math, std.regex, std.stdio; // Transforms input into a real number, rounds it, then to a string alias round = pipe!(to!real, lround, to!string); // Matches numbers that look like they need rounding static reFloatingPoint = ctRegex!`[0-9]+\.[0-9]+`; void main(string[] args) { // If arguments, process those and exit, otherwise wait around // for input on stdin if (args.length > 1) args[1..$].map!round.joiner(" ").writeln; else // Replace anything that looks like a real number with the // rounded equivalent. stdin.byLine(KeepTerminator.yes) .map!(l => l.replaceAll!(c => c.hit.round)(reFloatingPoint)) .copy(stdout.lockingTextWriter()); } --------------------------------- |
May 02, 2015 Re: [your code here] Rounding real numbers | ||||
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Posted in reply to Justin Whear | On Friday, 1 May 2015 at 17:17:09 UTC, Justin Whear wrote:
> A process for rounding numbers.
Thanks Justin. Could someone take this? We don't have PHP code for rotating examples randomly yet. -- Andrei
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May 03, 2015 Re: [your code here] Rounding real numbers | ||||
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Posted in reply to Andrei Alexandrescu | On Saturday, 2 May 2015 at 22:23:01 UTC, Andrei Alexandrescu wrote:
> On Friday, 1 May 2015 at 17:17:09 UTC, Justin Whear wrote:
>> A process for rounding numbers.
>
> Thanks Justin. Could someone take this? We don't have PHP code for rotating examples randomly yet. -- Andrei
Doesn't need to be PHP, just show one example statically and switch it with a random one with JS.
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May 03, 2015 Re: [your code here] Rounding real numbers | ||||
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Posted in reply to Vladimir Panteleev | On Sunday, 3 May 2015 at 02:48:32 UTC, Vladimir Panteleev wrote:
> Doesn't need to be PHP
could also be D
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May 03, 2015 Re: [your code here] Rounding real numbers | ||||
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Posted in reply to Vladimir Panteleev | On 5/2/15 7:48 PM, Vladimir Panteleev wrote:
> On Saturday, 2 May 2015 at 22:23:01 UTC, Andrei Alexandrescu wrote:
>> On Friday, 1 May 2015 at 17:17:09 UTC, Justin Whear wrote:
>>> A process for rounding numbers.
>>
>> Thanks Justin. Could someone take this? We don't have PHP code for
>> rotating examples randomly yet. -- Andrei
>
> Doesn't need to be PHP, just show one example statically and switch it
> with a random one with JS.
That'd work. I gather you just volunteered :o). -- Andrei
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May 03, 2015 Re: [your code here] Rounding real numbers | ||||
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Posted in reply to Adam D. Ruppe | On 5/2/15 7:51 PM, Adam D. Ruppe wrote:
> On Sunday, 3 May 2015 at 02:48:32 UTC, Vladimir Panteleev wrote:
>> Doesn't need to be PHP
>
> could also be D
"code or it didn't happen" -- Andrei
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May 04, 2015 Re: [your code here] Rounding real numbers | ||||
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Posted in reply to Justin Whear | Arrrg, formatting got torn up. Here's a Dpaste: http://dpaste.dzfl.pl/ca190950f199 |
May 04, 2015 Re: [your code here] Rounding real numbers | ||||
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Posted in reply to Andrei Alexandrescu | On Sunday, 3 May 2015 at 04:14:40 UTC, Andrei Alexandrescu wrote: > On 5/2/15 7:48 PM, Vladimir Panteleev wrote: >> On Saturday, 2 May 2015 at 22:23:01 UTC, Andrei Alexandrescu wrote: >>> On Friday, 1 May 2015 at 17:17:09 UTC, Justin Whear wrote: >>>> A process for rounding numbers. >>> >>> Thanks Justin. Could someone take this? We don't have PHP code for >>> rotating examples randomly yet. -- Andrei >> >> Doesn't need to be PHP, just show one example statically and switch it >> with a random one with JS. > > That'd work. I gather you just volunteered :o). -- Andrei https://github.com/D-Programming-Language/dlang.org/pull/988 |
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