On Thursday, 22 June 2017 at 00:48:25 UTC, Seb wrote:
Hi,
I am currently trying to modernize the D code example roulette
on the dlang.org front page [1]. Hence, I would love to hear
about your favorite feature(s) in D.
Ideas:
- favorite language construct
- favorite code sample
- "only possible in D"
Before you ask, yes - I want to add a couple of cool examples
to dlang.org (and yep the roulette rotation is currently broken
[2]).
[1]
https://github.com/dlang/dlang.org/pulls?q=is%3Apr+is%3Aopen+label%3A%22Frontpage+example%22
[2] https://github.com/dlang/dlang.org/pull/1757
H. S. Teoh calendar:
https://wiki.dlang.org/Component_programming_with_ranges
/**
* Formats a year.
* Parameters:
* year = Year to display calendar for.
* monthsPerRow = How many months to fit into a row in the
output.
* Returns: A range of strings representing the formatted year.
*/
auto formatYear(int year, int monthsPerRow)
{
enum colSpacing = 1;
return
datesInYear(year) // Start by generating all dates for
the given year
.byMonth() // Group them by month
.chunks(monthsPerRow) // Group the months into horizontal
rows
// Format each row
.map!(r =>
r.formatMonths() // By formatting each month
.array() // Storing each month's formatting in a
row buffer
// Horizontally pasting each respective month's
lines together
.pasteBlocks(colSpacing)
.join("\n"))
// Insert a blank line between each row
.join("\n\n");
}
