Subject: [Boost-users] positional arguments in boost::program_options
From: Evan Driscoll (driscoll_at_[hidden])
Date: 2012-06-13 18:12:17
Hi, I'm writing a program which will run other programs (think xargs)
and I have the following question.
If I am reading the docs right, I get positional arguments by doing
something like
1) Make a "normal" argument --arg
2) Tell it that positional arguments map to --arg
However, if I do this, that means that if someone runs
my_wrapper target_program --arg a
then the --arg "disappears" because boost::po treats it as an actual
option and not a positional argument.
I can (mostly) get around this by naming all the fake positional
arguments something like --ZZZZarg and assuming no one will ever want to
pass that to another program, but it's a bit unsatisfactory
conceptually. Is there a better way?
Evan