These are actions provided for convenience. Examples of their use:
ArgParse ap;
...
// Flag, just store 1 if set (default to 0)
ap.add_argument("-v")
.action(ArgParse::store_true());
// Store 42 if the flag is encountered (default is 1)
ap.add_argument("--foo")
.defaultval(1)
.action(ArgParse::store_const(42));
// Take an integer argument and store it
ap.add_argument("--bar")
.action(ArgParse::store<int>());
// Take 3 floating point arguments, pass default as Color3f.
ap.add_argument("--color")
.nargs(3)
.metavar("R G B")
.action(ArgParse::store<float>)
.defaultval(Imath::Color3f(0.5f, 0.5f, 0.5f));
// Take a single string argument, but *append* it, so if the
// option appears multiple time, you get a list of strings.
ap.add_argument("-o")
.action(ArgParse::append());
// Another string appending example, but using a positional
// argument.
ap.add_argument("filename")
.action(ArgParse::append());
template<typename T = ustring>
| static ArgAction ArgParse::append |
( |
| ) |
|
|
inlinestatic |
Return an action that appends into its destination attribute the following n command line arguments (where n is the number of additional command line arguments that this option requires).
Definition at line 645 of file argparse.h.
| static Action ArgParse::do_nothing |
( |
| ) |
|
|
static |
Return an action that does nothing. I guess you could use use this for an argument that is obsolete and is still accepted, but no longer has any function.
template<typename T = ustring>
| static ArgAction ArgParse::store |
( |
| ) |
|
|
inlinestatic |
Return an action that stores into its destination attribute the following n command line arguments (where n is the number of additional command line arguments that this option requires).
Definition at line 623 of file argparse.h.
template<typename T >
| static ArgAction ArgParse::store_const |
( |
const T & |
value | ) |
|
|
inlinestatic |
Return an action that stores a constant value into its destination attribute.
Definition at line 606 of file argparse.h.
| static ArgAction ArgParse::store_const |
( |
const char * |
value | ) |
|
|
inlinestatic |
| static ArgAction ArgParse::store_false |
( |
| ) |
|
|
static |
Return an action that stores 0 into its destination attribute.
| static ArgAction ArgParse::store_true |
( |
| ) |
|
|
static |
Return an action that stores 1 into its destination attribute.
1.8.6