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module;
#include <string>
export module ttwhy.scanners:terminal_policies;
import :events;
import :concepts;
namespace ttwhy::scanners
{
export struct ansi_policy
{
constexpr auto static resolve_vt220_keypad(std::string & buffer, ttwhy::ansi_sink auto & sink) -> void
{
auto key = [](auto terminator) {
switch (terminator)
{
case '1':
case '7':
return navigation_key::home;
case '2':
return navigation_key::insert_key;
case '3':
return navigation_key::delete_key;
case '4':
case '8':
return navigation_key::end;
case '5':
return navigation_key::page_up;
case '6':
return navigation_key::page_down;
default:
return static_cast<navigation_key>(-1);
}
}(buffer.back());
sink(navigation_event{key});
}
constexpr auto static resolve_vt100_cursor(char terminator, ttwhy::ansi_sink auto & sink) -> void
{
auto key = [terminator] {
switch (terminator)
{
case 'A':
return navigation_key::up;
case 'B':
return navigation_key::down;
case 'C':
return navigation_key::right;
case 'D':
return navigation_key::left;
case 'H':
return navigation_key::home;
case 'F':
return navigation_key::end;
default:
return static_cast<navigation_key>(-1);
}
}();
sink(navigation_event{key});
}
constexpr auto static resolve_ss3(char terminator, ttwhy::ansi_sink auto & sink) -> void
{
return resolve_vt100_cursor(terminator, sink);
}
};
} // namespace ttwhy::scanners
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