Why are homepage examples too complicated?

[Nick Treleaven via Digitalmars-d]

On Thursday, 13 October 2016 at 19:06:26 UTC, Karabuta wrote:
>     // Replace anything that looks like a real
>     // number with the rounded equivalent.
>     stdin
>         .byLine
>         .map!(l => l.replaceAll!(c => c.hit.round)
>                                 (reFloatingPoint))
>         .each!writeln;

I think this example is a bit awkward for D newbies to decipher. 
I think here we are showing D's ctRegex; dropping the functional 
map and lambdas would make this more universally understood. 
Using matchAll rather than replaceAll makes the example a bit 
simpler too:

// Print a list of rounded decimal numbers
import std.conv, std.functional, std.math, std.regex;

// Chain functions together to round a string parsed as a real 
number
alias roundString = pipe!(to!real, std.math.round, to!string);

// Create a compile-time Regular Expression to match decimal 
numbers
static decimalRegex = ctRegex!`[0-9]+\.[0-9]+`;

void main()
{
     import std.stdio;

     // Iterate standard input lines
     foreach (line; stdin.byLine())
     {
         // Find all decimal matches
         foreach (m; line.matchAll(decimalRegex))
         {
             m.hit.roundString().writeln(); // round number and 
print
         }
     }
}