I've reviewed the patch and think it's almost ready. Remaining questions:
1. You use 2-space indent while the rest of the file uses 4-space. Do you mind if I auto-reformat this? Not at all.
2. I don't think that passing line width as construct parameter to options_descripton is optimal. It's not really property of options description. A better design would be do only line_width parameter to the options_description::print method. What do you think?
3. Do you plan to add detailed formatting description. If you don't have
But this would mean no more oprator<< for options_descripton! Not a real problem but existing code like os << desc; would have to be changed to desc.print(os, line_length); If you want i can make that change but the question is do you really want to? (Assuming a default line_length for oprator<< does not really look right to me.) the
time now, no problem, I'll commit the patch anyway. I plan to do. But probably not before new year.
Bertolt