Pipe-Syntax?
Alex Rønne Petersen
xtzgzorex at gmail.com
Tue Dec 20 23:29:51 PST 2011
On 21-12-2011 05:51, Manfred Nowak wrote:
> Just looked at index.html of D and got stuck on
>
> writeln("Hello World, Reloaded");
>
> // auto type inference and built-in foreach
> foreach (argc, argv; args)
> {
> // Object Oriented Programming
> auto cl = new CmdLin(argc, argv);
> // Improved typesafe printf
> writeln(cl.argnum, cl.suffix, " arg: ", cl.argv);
> // Automatic or explicit memory management
> delete cl;
> }
>
> With the pipe-syntax of shells ( sh, bash, ...) this five lines could be
> written as:
>
> "Hello World, Piped" | writeln;
> args | CmdLin | {argnum, suffix, " arg: ", argv} | writeln;
>
> Comments?
>
> -manfred
You could have a look at the pipe template in std.functional. But in
general, I agree; a sort of piping operator would be very useful in
algorithmic code. I find myself using the "|>" operator often in F#.
- Alex
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