[boost] Some comments on program_options/howto.html

From: Peter Dimov (pdimov_at_[hidden])
Date: 2004-11-02 08:02:07

I dutifully followed the link from the --no-foo thread, and I have some 
comments.

The Winmain Command Line section says split_command_line in the text, 
split_winmain in the example code.

The Response Files section shows example code for parsing a response file 
using Tokenizer. Why shouldn't one be able to use split_command_line 
instead? There doesn't seem to be any difference between a command line in 
string format and a response file.

Also, response file support doesn't seem proper. Response files should work 
like this:

@file1 --option=value @file2

If file1 contains --option, it will be overriden by the command line. 
Similarly, all options in file2 will override both file1 and the command 
line --option=value. From a cursory look at the example, this doesn't seem 
to be the case, but I may be wrong. An additional parser could have been 
used to enable this behavior if it were possible to return more than one 
option/value pair from it. (This would also allow "option bundles" like -O1 
expanding into a set of option/values.)