85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
#ifndef command_manager_hh_INCLUDED
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#define command_manager_hh_INCLUDED
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#include <unordered_map>
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#include <functional>
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#include <initializer_list>
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#include "string.hh"
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#include "utils.hh"
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#include "completion.hh"
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#include "memoryview.hh"
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#include "shell_manager.hh"
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namespace Kakoune
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{
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struct Context;
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struct wrong_argument_count : runtime_error
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{
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wrong_argument_count() : runtime_error("wrong argument count") {}
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};
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using CommandParameters = memoryview<String>;
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typedef std::function<void (const CommandParameters&,
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Context& context)> Command;
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typedef std::function<CandidateList (const Context& context,
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const CommandParameters&,
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size_t, size_t)> CommandCompleter;
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class PerArgumentCommandCompleter
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{
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public:
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typedef std::function<CandidateList (const Context&,
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const String&, size_t)> ArgumentCompleter;
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typedef memoryview<ArgumentCompleter> ArgumentCompleterList;
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PerArgumentCommandCompleter(const ArgumentCompleterList& completers)
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: m_completers(completers.begin(), completers.end()) {}
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CandidateList operator()(const Context& context,
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const CommandParameters& params,
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size_t token_to_complete,
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size_t pos_in_token) const;
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private:
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std::vector<ArgumentCompleter> m_completers;
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};
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class CommandManager : public Singleton<CommandManager>
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{
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public:
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void execute(const String& command_line, Context& context,
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const EnvVarMap& env_vars = EnvVarMap());
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Completions complete(const Context& context,
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const String& command_line, size_t cursor_pos);
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bool command_defined(const String& command_name) const;
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void register_command(const String& command_name,
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Command command,
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const CommandCompleter& completer = CommandCompleter());
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void register_commands(const memoryview<String>& command_names,
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Command command,
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const CommandCompleter& completer = CommandCompleter());
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private:
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void execute_single_command(const CommandParameters& params,
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Context& context) const;
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struct CommandDescriptor
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{
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Command command;
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CommandCompleter completer;
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};
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std::unordered_map<String, CommandDescriptor> m_commands;
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};
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}
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#endif // command_manager_hh_INCLUDED
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