[your code here] minimal hex viewer

[Justin Whear]

// Reads bytes from stdin and writes a hexadecimal view like a 
no-frills xxd.
// All the actual formatting work is done by format's sweet range 
syntax
void main(string[] args)
{
	import std.getopt;
	uint bytesPerLine = 8;
	args.getopt(
		"cols|c", &bytesPerLine
	);

	import std.stdio;
	import std.range : chunks;
	import std.algorithm : map, copy;
	import std.string : format;
	import std.ascii : newline;
	stdin.byChunk(bytesPerLine)
	     .map!(bytes => bytes.format!"%(%02X %)%s"(newline))
	     .copy(stdout.lockingTextWriter());
}