kakoune/src/command_manager.hh
2011-09-23 14:29:42 +00:00

76 lines
2.2 KiB
C++

#ifndef command_manager_hh_INCLUDED
#define command_manager_hh_INCLUDED
#include <string>
#include <vector>
#include <unordered_map>
#include <functional>
#include <initializer_list>
#include "utils.hh"
#include "completion.hh"
namespace Kakoune
{
struct wrong_argument_count : runtime_error
{
wrong_argument_count() : runtime_error("wrong argument count") {}
};
typedef std::vector<std::string> CommandParameters;
typedef std::function<void (const CommandParameters&)> Command;
typedef std::function<CandidateList (const CommandParameters&,
size_t, size_t)> CommandCompleter;
class PerArgumentCommandCompleter
{
public:
typedef std::function<CandidateList (const std::string&, size_t)> ArgumentCompleter;
typedef std::vector<ArgumentCompleter> ArgumentCompleterList;
PerArgumentCommandCompleter(const ArgumentCompleterList& completers)
: m_completers(completers) {}
PerArgumentCommandCompleter(ArgumentCompleterList&& completers)
: m_completers(completers) {}
PerArgumentCommandCompleter(std::initializer_list<ArgumentCompleter> completers)
: m_completers(completers) {}
CandidateList operator()(const CommandParameters& params,
size_t token_to_complete,
size_t pos_in_token) const;
private:
ArgumentCompleterList m_completers;
};
class CommandManager : public Singleton<CommandManager>
{
public:
void execute(const std::string& command_line);
Completions complete(const std::string& command_line, size_t cursor_pos);
void register_command(const std::string& command_name,
Command command,
const CommandCompleter& completer = CommandCompleter());
void register_command(const std::vector<std::string>& command_names,
Command command,
const CommandCompleter& completer = CommandCompleter());
private:
struct CommandAndCompleter
{
Command command;
CommandCompleter completer;
};
std::unordered_map<std::string, CommandAndCompleter> m_commands;
};
}
#endif // command_manager_hh_INCLUDED