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Removed virtual setup, since it didn't work

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Henry Fredrick Schreiner 2017-02-07 14:47:43 -05:00
parent 56c85b1e22
commit feaabb4fb3
3 changed files with 15 additions and 11 deletions
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7
CHANGELOG.md
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@ -1,3 +1,10 @@
## Version 0.3 (in progress)
* Supports GCC 4.7 again
* TODO: Support type and set syntax in positionals
* Changes `setup` for an explicit help bool in constructor/`add_subcommand`
## Version 0.2
* Moved to simpler syntax, where `Option` pointers are returned and operated on

4
README.md
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@ -128,9 +128,9 @@ even exit the program through the callback. The main `App` has a callback slot,
> ## Subclassing
> ### Subclassing
>
> The App class was designed allow toolkits to subclass it, to provide default options and setup/teardown code. Subcommands remain `App`'s, since those are not expected to need setup and teardown. The default `App` only adds a help flag, `-h,--help` through the `virtual void setup()` method. If you only want to change this flag, override this method. Since subcommands are always the built in `App` object, they must have a normal help flag.
> The App class was designed allow toolkits to subclass it, to provide default options and setup/teardown code. Subcommands remain `App`'s, since those are not expected to need setup and teardown. The default `App` only adds a help flag, `-h,--help`, but provides an option to disable it in the constructor (and in `add_subcommand`).
>
> Also, in a related note, the `App`s you get a pointer to are stored in the parent `App` in `unique_ptr`s (like `Option`s) and are deleted when the main `App` goes out of scope.

15
include/CLI/App.hpp
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@ -81,20 +81,17 @@ public:
}
/// Create a new program. Pass in the same arguments as main(), along with a help string.
App(std::string prog_description="")
App(std::string prog_description="", bool help=true)
: prog_description(prog_description) {
setup();
}
/// Setup help flag. Virtual to allow customization.
virtual void setup() {
if(help)
help_flag = add_flag("-h,--help", "Print this help message and exit");
}
App* add_subcommand(std::string name, std::string description="") {
subcommands.emplace_back(new App(description));
/// Add a subcommand. Like the constructor, you can override the help message addition by setting help=false
App* add_subcommand(std::string name, std::string description="", bool help=true) {
subcommands.emplace_back(new App(description, help));
subcommands.back()->name = name;
return subcommands.back().get();
}