91 lines
3.7 KiB
C++
91 lines
3.7 KiB
C++
|
// Copyright Vladimir Prus 2004.
|
||
|
|
// Distributed under the Boost Software License, Version 1.0.
|
||
|
|
// (See accompanying file LICENSE_1_0.txt
|
||
|
|
// or copy at http://www.boost.org/LICENSE_1_0.txt)
|
||
|
|
|
||
|
|
#ifndef BOOST_CMDLINE_HPP_VP_2004_03_13
|
||
|
|
#define BOOST_CMDLINE_HPP_VP_2004_03_13
|
||
|
|
|
||
|
|
namespace boost { namespace program_options { namespace command_line_style {
|
||
|
|
/** Various possible styles of options.
|
||
|
|
|
||
|
|
There are "long" options, which start with "--" and "short",
|
||
|
|
which start with either "-" or "/". Both kinds can be allowed or
|
||
|
|
disallowed, see allow_long and allow_short. The allowed character
|
||
|
|
for short options is also configurable.
|
||
|
|
|
||
|
|
Option's value can be specified in the same token as name
|
||
|
|
("--foo=bar"), or in the next token.
|
||
|
|
|
||
|
|
It's possible to introduce long options by the same character as
|
||
|
|
short options, see allow_long_disguise.
|
||
|
|
|
||
|
|
Finally, guessing (specifying only prefix of option) and case
|
||
|
|
insensitive processing are supported.
|
||
|
|
*/
|
||
|
|
enum style_t {
|
||
|
|
/// Allow "--long_name" style
|
||
|
|
allow_long = 1,
|
||
|
|
/// Allow "-<single character" style
|
||
|
|
allow_short = allow_long << 1,
|
||
|
|
/// Allow "-" in short options
|
||
|
|
allow_dash_for_short = allow_short << 1,
|
||
|
|
/// Allow "/" in short options
|
||
|
|
allow_slash_for_short = allow_dash_for_short << 1,
|
||
|
|
/** Allow option parameter in the same token
|
||
|
|
for long option, like in
|
||
|
|
@verbatim
|
||
|
|
--foo=10
|
||
|
|
@endverbatim
|
||
|
|
*/
|
||
|
|
long_allow_adjacent = allow_slash_for_short << 1,
|
||
|
|
/** Allow option parameter in the next token for
|
||
|
|
long options. */
|
||
|
|
long_allow_next = long_allow_adjacent << 1,
|
||
|
|
/** Allow option parameter in the same token for
|
||
|
|
short options. */
|
||
|
|
short_allow_adjacent = long_allow_next << 1,
|
||
|
|
/** Allow option parameter in the next token for
|
||
|
|
short options. */
|
||
|
|
short_allow_next = short_allow_adjacent << 1,
|
||
|
|
/** Allow to merge several short options together,
|
||
|
|
so that "-s -k" become "-sk". All of the options
|
||
|
|
but last should accept no parameter. For example, if
|
||
|
|
"-s" accept a parameter, then "k" will be taken as
|
||
|
|
parameter, not another short option.
|
||
|
|
Dos-style short options cannot be sticky.
|
||
|
|
*/
|
||
|
|
allow_sticky = short_allow_next << 1,
|
||
|
|
/** Allow abbreviated spellings for long options,
|
||
|
|
if they unambiguously identify long option.
|
||
|
|
No long option name should be prefix of other
|
||
|
|
long option name if guessing is in effect.
|
||
|
|
*/
|
||
|
|
allow_guessing = allow_sticky << 1,
|
||
|
|
/** Ignore the difference in case for long options.
|
||
|
|
*/
|
||
|
|
long_case_insensitive = allow_guessing << 1,
|
||
|
|
/** Ignore the difference in case for short options.
|
||
|
|
*/
|
||
|
|
short_case_insensitive = long_case_insensitive << 1,
|
||
|
|
/** Ignore the difference in case for all options.
|
||
|
|
*/
|
||
|
|
case_insensitive = (long_case_insensitive | short_case_insensitive),
|
||
|
|
/** Allow long options with single option starting character,
|
||
|
|
e.g <tt>-foo=10</tt>
|
||
|
|
*/
|
||
|
|
allow_long_disguise = short_case_insensitive << 1,
|
||
|
|
/** The more-or-less traditional unix style. */
|
||
|
|
unix_style = (allow_short | short_allow_adjacent | short_allow_next
|
||
|
|
| allow_long | long_allow_adjacent | long_allow_next
|
||
|
|
| allow_sticky | allow_guessing
|
||
|
|
| allow_dash_for_short),
|
||
|
|
/** The default style. */
|
||
|
|
default_style = unix_style
|
||
|
|
};
|
||
|
|
}}}
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|