On Wednesday, 2 September 2015 at 21:53:20 UTC, Namal wrote:
Thx guys, this helped alot. The next thing I want to do is read
the file line by line and split the stream into words. I found
this example of code that seems to do sort of something like
it. How can I modyfy it so I can store the words in an array of
strings? Is a => a.length the iterator range?
import std.algorithm, std.stdio, std.string;
// Count words in a file using ranges.
void main()
{
auto file = File("file.txt"); // Open for reading
const wordCount = file.byLine() // Read lines
.map!split // Split into
words
.map!(a => a.length) // Count words
per line
.sum(); // Total word
count
writeln(wordCount);
}
I would do what you want like this
auto file = File("file.txt");
auto words = file.byLine() // you've all lines in range
.map!(a => a.split); // read each line,
splitting it into words
// now you've a range, where
each element is an array of words
The map!(a => a.split) line simply maps each element to the
return value of a.split - this is the predicate.
The a => a.split syntax is a lambda expression that tells map
what to do on each element.
