Hello,

I've just started learning D, working my way through "The D Programming Language" by Andrei Alexandrescu. On page 8 there is:
import std.stdio, std.string;

void main(){
    uint[string] dictionary;
    foreach (line; stdin.byLine()){
        foreach (word; splitter(strip(line))){
	    if (word in dictionary) continue;
 	    auto newID = dictionary.length;
	    dictionary[word] = newID;
	    writeln(newID, '\t', word);
	}
    }
}

When i try to run it, i get that splitter is 'undefined'. I can't spot the error. Maybe a fresh pair of eyes will do it??

Thank you,
Alex

On 04/12/2017 11:33 PM, alex wrote:
> Hello,
>
> I've just started learning D, working my way through "The D Programming
> Language" by Andrei Alexandrescu.

Great book but a lot has changed in D since the book was written in 2010. Your issue is in the book's errata:

  http://erdani.com/tdpl/errata/

So, the following should work today:

import std.stdio, std.string;
import std.algorithm;

void main(){
    ulong[string] dictionary;
    foreach (line; stdin.byLine()){
        foreach (word; splitter(strip(line))){
            if (word in dictionary) continue;
            auto newID = dictionary.length;
            dictionary[word.idup] = newID;
            writeln(newID, '\t', word);
        }
    }
}

Ali

On Thursday, 13 April 2017 at 06:42:30 UTC, Ali Çehreli wrote:
> On 04/12/2017 11:33 PM, alex wrote:
> > Hello,
> >
> "The D Programming Language" by Andrei Alexandrescu.
>
> Great book but a lot has changed in D since the book was written in 2010. Your issue is in the book's errata:
>
>   http://erdani.com/tdpl/errata/
>
> So, the following should work today:
>

> Ali

Thank you Ali - very good.
Alex