home/src/commands.cc
Maxime Coste f7bed9eb18 Support specifying an exit status on quit commands
The current client exit status can be specified as an optional
parameter, is nothing is given the exit status will be 0.

Fixes #1230
2017-08-23 13:33:13 +07:00

2148 lines
78 KiB
C++

#include "commands.hh"
#include "buffer.hh"
#include "buffer_manager.hh"
#include "buffer_utils.hh"
#include "client.hh"
#include "client_manager.hh"
#include "command_manager.hh"
#include "completion.hh"
#include "containers.hh"
#include "context.hh"
#include "event_manager.hh"
#include "face_registry.hh"
#include "file.hh"
#include "hash_map.hh"
#include "highlighter.hh"
#include "highlighters.hh"
#include "option_manager.hh"
#include "option_types.hh"
#include "parameters_parser.hh"
#include "ranked_match.hh"
#include "register_manager.hh"
#include "insert_completer.hh"
#include "remote.hh"
#include "regex.hh"
#include "shell_manager.hh"
#include "string.hh"
#include "user_interface.hh"
#include "window.hh"
#include <functional>
#include <utility>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#if defined(__GLIBC__) || defined(__CYGWIN__)
#include <malloc.h>
#endif
namespace Kakoune
{
namespace
{
Buffer* open_fifo(StringView name, StringView filename, Buffer::Flags flags, bool scroll)
{
int fd = open(parse_filename(filename).c_str(), O_RDONLY | O_NONBLOCK);
fcntl(fd, F_SETFD, FD_CLOEXEC);
if (fd < 0)
throw runtime_error(format("unable to open '{}'", filename));
return create_fifo_buffer(name.str(), fd, flags, scroll);
}
template<typename... Completers> struct PerArgumentCommandCompleter;
template<> struct PerArgumentCommandCompleter<>
{
Completions operator()(const Context&, CompletionFlags, CommandParameters,
size_t, ByteCount) const { return {}; }
};
template<typename Completer, typename... Rest>
struct PerArgumentCommandCompleter<Completer, Rest...> : PerArgumentCommandCompleter<Rest...>
{
template<typename C, typename... R,
typename = std::enable_if_t<not std::is_base_of<PerArgumentCommandCompleter<>,
std::remove_reference_t<C>>::value>>
PerArgumentCommandCompleter(C&& completer, R&&... rest)
: PerArgumentCommandCompleter<Rest...>(std::forward<R>(rest)...),
m_completer(std::forward<C>(completer)) {}
Completions operator()(const Context& context, CompletionFlags flags,
CommandParameters params, size_t token_to_complete,
ByteCount pos_in_token) const
{
if (token_to_complete == 0)
{
const String& arg = token_to_complete < params.size() ?
params[token_to_complete] : String();
return m_completer(context, flags, arg, pos_in_token);
}
return PerArgumentCommandCompleter<Rest...>::operator()(
context, flags, params.subrange(1),
token_to_complete-1, pos_in_token);
}
Completer m_completer;
};
template<typename... Completers>
PerArgumentCommandCompleter<std::decay_t<Completers>...>
make_completer(Completers&&... completers)
{
return {std::forward<Completers>(completers)...};
}
auto filename_completer = make_completer(
[](const Context& context, CompletionFlags flags, const String& prefix, ByteCount cursor_pos)
{ return Completions{ 0_byte, cursor_pos,
complete_filename(prefix,
context.options()["ignored_files"].get<Regex>(),
cursor_pos, FilenameFlags::Expand) }; });
static Completions complete_buffer_name(const Context& context, CompletionFlags flags,
StringView prefix, ByteCount cursor_pos)
{
struct RankedMatchAndBuffer : RankedMatch
{
RankedMatchAndBuffer(RankedMatch m, const Buffer* b)
: RankedMatch{std::move(m)}, buffer{b} {}
using RankedMatch::operator==;
using RankedMatch::operator<;
const Buffer* buffer;
};
StringView query = prefix.substr(0, cursor_pos);
Vector<RankedMatchAndBuffer> filename_matches;
Vector<RankedMatchAndBuffer> matches;
for (const auto& buffer : BufferManager::instance())
{
StringView bufname = buffer->display_name();
if (buffer->flags() & Buffer::Flags::File)
{
if (RankedMatch match{split_path(bufname).second, query})
{
filename_matches.emplace_back(match, buffer.get());
continue;
}
}
if (RankedMatch match{bufname, query})
matches.emplace_back(match, buffer.get());
}
std::sort(filename_matches.begin(), filename_matches.end());
std::sort(matches.begin(), matches.end());
CandidateList res;
for (auto& match : filename_matches)
res.push_back(match.buffer->display_name());
for (auto& match : matches)
res.push_back(match.buffer->display_name());
return { 0, cursor_pos, res };
}
auto buffer_completer = make_completer(complete_buffer_name);
const ParameterDesc no_params{ {}, ParameterDesc::Flags::None, 0, 0 };
const ParameterDesc single_param{ {}, ParameterDesc::Flags::None, 1, 1 };
const ParameterDesc single_optional_param{ {}, ParameterDesc::Flags::None, 0, 1 };
static constexpr auto scopes = { "global", "buffer", "window" };
static Completions complete_scope(const Context&, CompletionFlags,
const String& prefix, ByteCount cursor_pos)
{
return { 0_byte, cursor_pos, complete(prefix, cursor_pos, scopes) };
}
static Completions complete_command_name(const Context& context, CompletionFlags,
const String& prefix, ByteCount cursor_pos)
{
return CommandManager::instance().complete_command_name(
context, prefix.substr(0, cursor_pos));
}
Scope* get_scope_ifp(StringView scope, const Context& context)
{
if (prefix_match("global", scope))
return &GlobalScope::instance();
else if (prefix_match("buffer", scope))
return &context.buffer();
else if (prefix_match("window", scope))
return &context.window();
else if (prefix_match(scope, "buffer="))
return &BufferManager::instance().get_buffer(scope.substr(7_byte));
return nullptr;
}
Scope& get_scope(StringView scope, const Context& context)
{
if (auto s = get_scope_ifp(scope, context))
return *s;
throw runtime_error(format("error: no such scope '{}'", scope));
}
struct CommandDesc
{
const char* name;
const char* alias;
const char* docstring;
ParameterDesc params;
CommandFlags flags;
CommandHelper helper;
CommandCompleter completer;
void (*func)(const ParametersParser&, Context&, const ShellContext&);
};
template<bool force_reload>
void edit(const ParametersParser& parser, Context& context, const ShellContext&)
{
if (parser.positional_count() == 0 and not force_reload)
throw wrong_argument_count();
auto& name = parser.positional_count() > 0 ? parser[0]
: context.buffer().name();
auto& buffer_manager = BufferManager::instance();
Buffer* buffer = buffer_manager.get_buffer_ifp(name);
const bool no_hooks = context.hooks_disabled();
const auto flags = (no_hooks ? Buffer::Flags::NoHooks : Buffer::Flags::None) |
(parser.get_switch("debug") ? Buffer::Flags::Debug : Buffer::Flags::None);
if (force_reload and buffer and buffer->flags() & Buffer::Flags::File)
reload_file_buffer(*buffer);
else
{
if (parser.get_switch("scratch"))
{
if (buffer and (force_reload or buffer->flags() != Buffer::Flags::None))
{
buffer_manager.delete_buffer(*buffer);
buffer = nullptr;
}
if (not buffer)
buffer = buffer_manager.create_buffer(name, flags);
}
else if (auto fifo = parser.get_switch("fifo"))
buffer = open_fifo(name, *fifo, flags, (bool)parser.get_switch("scroll"));
else if (not buffer)
{
buffer = parser.get_switch("existing") ? open_file_buffer(name, flags)
: open_or_create_file_buffer(name, flags);
if (buffer->flags() & Buffer::Flags::New)
context.print_status({ format("new file '{}'", name),
get_face("StatusLine") });
}
buffer->flags() &= ~Buffer::Flags::NoHooks;
}
const size_t param_count = parser.positional_count();
if (buffer != &context.buffer() or param_count > 1)
context.push_jump();
if (buffer != &context.buffer())
context.change_buffer(*buffer);
if (param_count > 1 and not parser[1].empty())
{
int line = std::max(0, str_to_int(parser[1]) - 1);
int column = param_count > 2 and not parser[2].empty() ?
std::max(0, str_to_int(parser[2]) - 1) : 0;
auto& buffer = context.buffer();
context.selections_write_only() = { buffer, buffer.clamp({ line, column }) };
if (context.has_window())
context.window().center_line(context.selections().main().cursor().line);
}
}
ParameterDesc edit_params{
{ { "existing", { false, "fail if the file does not exists, do not open a new file" } },
{ "scratch", { false, "create a scratch buffer, not linked to a file" } },
{ "debug", { false, "create buffer as debug output" } },
{ "fifo", { true, "create a buffer reading its content from a named fifo" } },
{ "scroll", { false, "place the initial cursor so that the fifo will scroll to show new data" } } },
ParameterDesc::Flags::None, 0, 3
};
const CommandDesc edit_cmd = {
"edit",
"e",
"edit [<switches>] <filename> [<line> [<column>]]: open the given filename in a buffer",
edit_params,
CommandFlags::None,
CommandHelper{},
filename_completer,
edit<false>
};
const CommandDesc force_edit_cmd = {
"edit!",
"e!",
"edit! [<switches>] <filename> [<line> [<column>]]: open the given filename in a buffer, "
"force reload if needed",
edit_params,
CommandFlags::None,
CommandHelper{},
filename_completer,
edit<true>
};
template<bool force = false>
void write_buffer(const ParametersParser& parser, Context& context, const ShellContext&)
{
Buffer& buffer = context.buffer();
if (parser.positional_count() == 0 and !(buffer.flags() & Buffer::Flags::File))
throw runtime_error("cannot write a non file buffer without a filename");
// if the buffer is in read-only mode and we try to save it directly
// or we try to write to it indirectly using e.g. a symlink, throw an error
if ((context.buffer().flags() & Buffer::Flags::ReadOnly)
and (parser.positional_count() == 0 or real_path(parser[0]) == buffer.name()))
throw runtime_error("cannot overwrite the buffer when in readonly mode");
auto filename = parser.positional_count() == 0 ?
buffer.name() : parse_filename(parser[0]);
context.hooks().run_hook("BufWritePre", filename, context);
write_buffer_to_file(buffer, filename, force);
context.hooks().run_hook("BufWritePost", filename, context);
}
const CommandDesc write_cmd = {
"write",
"w",
"write [filename]: write the current buffer to its file "
"or to [filename] if specified",
single_optional_param,
CommandFlags::None,
CommandHelper{},
filename_completer,
write_buffer,
};
const CommandDesc force_write_cmd = {
"write!",
"w!",
"write [filename]: write the current buffer to its file "
"or to [filename] if specified, even when the file is write protected",
single_optional_param,
CommandFlags::None,
CommandHelper{},
filename_completer,
write_buffer<true>,
};
void write_all_buffers(Context& context)
{
// Copy buffer list because hooks might be creating/deleting buffers
Vector<SafePtr<Buffer>> buffers;
for (auto& buffer : BufferManager::instance())
buffers.emplace_back(buffer.get());
for (auto& buffer : buffers)
{
if ((buffer->flags() & Buffer::Flags::File) and buffer->is_modified()
and !(buffer->flags() & Buffer::Flags::ReadOnly))
{
buffer->run_hook_in_own_context("BufWritePre", buffer->name(), context.name());
write_buffer_to_file(*buffer, buffer->name());
buffer->run_hook_in_own_context("BufWritePost", buffer->name(), context.name());
}
}
}
const CommandDesc write_all_cmd = {
"write-all",
"wa",
"write all buffers that are associated to a file",
no_params,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser&, Context& context, const ShellContext&){ write_all_buffers(context); }
};
static void ensure_all_buffers_are_saved()
{
auto is_modified = [](const std::unique_ptr<Buffer>& buf) {
return (buf->flags() & Buffer::Flags::File) and buf->is_modified();
};
auto it = find_if(BufferManager::instance(), is_modified);
const auto end = BufferManager::instance().end();
if (it == end)
return;
String message = "modified buffers remaining: [";
while (it != end)
{
message += (*it)->name();
it = std::find_if(it+1, end, is_modified);
message += (it != end) ? ", " : "]";
}
throw runtime_error(message);
}
const CommandDesc kill_cmd = {
"kill",
nullptr,
"kill current session, quit all clients and server",
no_params,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser&, Context&, const ShellContext&){
ensure_all_buffers_are_saved();
throw kill_session{};
}
};
const CommandDesc force_kill_cmd = {
"kill!",
nullptr,
"kill current session, quit all clients and server, do not check for unsaved buffers",
no_params,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser&, Context&, const ShellContext&){ throw kill_session{}; }
};
template<bool force>
void quit(const ParametersParser& parser, Context& context, const ShellContext&)
{
if (not force and ClientManager::instance().count() == 1)
ensure_all_buffers_are_saved();
const int status = parser.positional_count() > 0 ? str_to_int(parser[0]) : 0;
ClientManager::instance().remove_client(context.client(), true, status);
}
const CommandDesc quit_cmd = {
"quit",
"q",
"quit current client, and the kakoune session if the client is the last "
"(if not running in daemon mode). An optional integer parameter can set "
"the client exit status",
{ {}, ParameterDesc::Flags::SwitchesAsPositional, 0, 1 },
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
quit<false>
};
const CommandDesc force_quit_cmd = {
"quit!",
"q!",
"quit current client, and the kakoune session if the client is the last "
"(if not running in daemon mode). force quit even if the client is the "
"last and some buffers are not saved. An optional integer parameter can "
"set the client exit status",
{ {}, ParameterDesc::Flags::SwitchesAsPositional, 0, 1 },
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
quit<true>
};
template<bool force>
void write_quit(const ParametersParser& parser, Context& context,
const ShellContext& shell_context)
{
write_buffer({{}, {}}, context, shell_context);
quit<force>(parser, context, shell_context);
}
const CommandDesc write_quit_cmd = {
"write-quit",
"wq",
"write current buffer and quit current client. An optional integer"
"parameter can set the client exit status",
{ {}, ParameterDesc::Flags::SwitchesAsPositional, 0, 1 },
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
write_quit<false>
};
const CommandDesc force_write_quit_cmd = {
"write-quit!",
"wq!",
"write current buffer and quit current client, even if other buffers are "
"not saved. An optional integer parameter can set the client exit status",
{ {}, ParameterDesc::Flags::SwitchesAsPositional, 0, 1 },
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
write_quit<true>
};
const CommandDesc write_all_quit_cmd = {
"write-all-quit",
"waq",
"write all buffers associated to a file and quit current client. An "
"optional integer parameter can set the client exit status",
{ {}, ParameterDesc::Flags::SwitchesAsPositional, 0, 1 },
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext& shell_context)
{
write_all_buffers(context);
quit<false>(parser, context, shell_context);
}
};
const CommandDesc buffer_cmd = {
"buffer",
"b",
"buffer <name>: set buffer to edit in current client",
single_param,
CommandFlags::None,
CommandHelper{},
buffer_completer,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
Buffer& buffer = BufferManager::instance().get_buffer(parser[0]);
if (&buffer != &context.buffer())
{
context.push_jump();
context.change_buffer(buffer);
}
}
};
template<bool next>
void cycle_buffer(const ParametersParser& parser, Context& context, const ShellContext&)
{
Buffer* oldbuf = &context.buffer();
auto it = find_if(BufferManager::instance(),
[oldbuf](const std::unique_ptr<Buffer>& lhs)
{ return lhs.get() == oldbuf; });
kak_assert(it != BufferManager::instance().end());
Buffer* newbuf = nullptr;
auto cycle = [&] {
if (not next)
{
if (it == BufferManager::instance().begin())
it = BufferManager::instance().end();
--it;
}
else
{
if (++it == BufferManager::instance().end())
it = BufferManager::instance().begin();
}
newbuf = it->get();
};
cycle();
while (newbuf != oldbuf and newbuf->flags() & Buffer::Flags::Debug)
cycle();
if (newbuf != oldbuf)
{
context.push_jump();
context.change_buffer(*newbuf);
}
}
const CommandDesc buffer_next_cmd = {
"buffer-next",
"bn",
"buffer-next: move to the next buffer in the list",
no_params,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
cycle_buffer<true>
};
const CommandDesc buffer_previous_cmd = {
"buffer-previous",
"bp",
"buffer-previous: move to the previous buffer in the list",
no_params,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
cycle_buffer<false>
};
template<bool force>
void delete_buffer(const ParametersParser& parser, Context& context, const ShellContext&)
{
BufferManager& manager = BufferManager::instance();
Buffer& buffer = parser.positional_count() == 0 ? context.buffer() : manager.get_buffer(parser[0]);
if (not force and (buffer.flags() & Buffer::Flags::File) and buffer.is_modified())
throw runtime_error(format("buffer '{}' is modified", buffer.name()));
manager.delete_buffer(buffer);
}
const CommandDesc delete_buffer_cmd = {
"delete-buffer",
"db",
"delete-buffer [name]: delete current buffer or the buffer named <name> if given",
single_optional_param,
CommandFlags::None,
CommandHelper{},
buffer_completer,
delete_buffer<false>
};
const CommandDesc force_delete_buffer_cmd = {
"delete-buffer!",
"db!",
"delete-buffer! [name]: delete current buffer or the buffer named <name> if "
"given, even if the buffer is unsaved",
single_optional_param,
CommandFlags::None,
CommandHelper{},
buffer_completer,
delete_buffer<true>
};
const CommandDesc rename_buffer_cmd = {
"rename-buffer",
nullptr,
"rename-buffer <name>: change current buffer name",
single_param,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
if (not context.buffer().set_name(parser[0]))
throw runtime_error(format("unable to change buffer name to '{}'", parser[0]));
}
};
Completions complete_highlighter(const Context& context,
StringView arg, ByteCount pos_in_token, bool only_group)
{
const bool shared = not arg.empty() and arg[0_byte] == '/';
if (shared)
{
auto& group = DefinedHighlighters::instance();
return offset_pos(group.complete_child(arg.substr(1_byte), pos_in_token-1, only_group), 1);
}
else
{
auto& group = context.window().highlighters();
return group.complete_child(arg, pos_in_token, only_group);
}
}
Completions remove_highlighter_completer(
const Context& context, CompletionFlags flags, CommandParameters params,
size_t token_to_complete, ByteCount pos_in_token)
{
const String& arg = params[token_to_complete];
if (token_to_complete == 0 and not arg.empty() and arg.front() == '/')
{
auto& group = DefinedHighlighters::instance();
return offset_pos(group.complete_child(arg.substr(1_byte), pos_in_token-1, false), 1);
}
else if (token_to_complete == 0)
return context.window().highlighters().complete_child(arg, pos_in_token, false);
return {};
}
Completions add_highlighter_completer(
const Context& context, CompletionFlags flags, CommandParameters params,
size_t token_to_complete, ByteCount pos_in_token)
{
StringView arg = params[token_to_complete];
if (token_to_complete == 1 and params[0] == "-group")
return complete_highlighter(context, params[1], pos_in_token, true);
else if (token_to_complete == 0 or (token_to_complete == 2 and params[0] == "-group"))
return { 0_byte, arg.length(), complete(arg, pos_in_token, HighlighterRegistry::instance() | transform(std::mem_fn(&HighlighterRegistry::Item::key))) };
return Completions{};
}
Highlighter& get_highlighter(const Context& context, StringView path)
{
if (path.empty())
throw runtime_error("group path should not be empty");
Highlighter* root = nullptr;
if (path[0_byte] == '/')
{
root = &DefinedHighlighters::instance();
path = path.substr(1_byte);
}
else
root = &context.window().highlighters();
if (path.back() == '/')
path = path.substr(0_byte, path.length() - 1);
if (not path.empty())
return root->get_child(path);
return *root;
}
const CommandDesc add_highlighter_cmd = {
"add-highlighter",
"addhl",
"add-highlighter <type> <type params>...: add an highlighter",
ParameterDesc{
{ { "group", { true, "Set the group in which to put the highlighter. "
"If starting with /, search in shared highlighters, "
"else search in the current window" } } },
ParameterDesc::Flags::SwitchesOnlyAtStart, 1
},
CommandFlags::None,
[](const Context& context, CommandParameters params) -> String
{
if (params.size() > 0)
{
HighlighterRegistry& registry = HighlighterRegistry::instance();
auto it = registry.find(params[0]);
if (it != registry.end())
return format("{}:\n{}", params[0], indent(it->value.docstring));
}
return "";
},
add_highlighter_completer,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
HighlighterRegistry& registry = HighlighterRegistry::instance();
auto begin = parser.begin();
const String& name = *begin++;
Vector<String> highlighter_params;
for (; begin != parser.end(); ++begin)
highlighter_params.push_back(*begin);
auto group_name = parser.get_switch("group");
auto& group = group_name ? get_highlighter(context, *group_name)
: context.window().highlighters();
auto it = registry.find(name);
if (it == registry.end())
throw runtime_error(format("No such highlighter factory '{}'", name));
group.add_child(it->value.factory(highlighter_params));
if (context.has_window())
context.window().force_redraw();
}
};
const CommandDesc remove_highlighter_cmd = {
"remove-highlighter",
"rmhl",
"remove-highlighter <name>: remove highlighter <name>",
single_param,
CommandFlags::None,
CommandHelper{},
remove_highlighter_completer,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
StringView path = parser[0];
auto sep_it = find(path | reverse(), '/');
auto& group = sep_it != path.rend() ?
get_highlighter(context, {path.begin(), sep_it.base()})
: context.window().highlighters();
group.remove_child({sep_it.base(), path.end()});
if (context.has_window())
context.window().force_redraw();
}
};
static constexpr auto hooks = {
"BufCreate", "BufNewFile", "BufOpenFile", "BufClose", "BufWritePost",
"BufWritePre", "BufOpenFifo", "BufCloseFifo", "BufReadFifo", "BufSetOption",
"InsertBegin", "InsertChar", "InsertDelete", "InsertEnd", "InsertIdle", "InsertKey",
"InsertMove", "InsertCompletionHide", "InsertCompletionShow",
"KakBegin", "KakEnd", "FocusIn", "FocusOut", "RuntimeError", "PromptIdle",
"NormalBegin", "NormalEnd", "NormalIdle", "NormalKey", "RawKey",
"WinClose", "WinCreate", "WinDisplay", "WinResize", "WinSetOption",
};
static Completions complete_hooks(const Context&, CompletionFlags,
const String& prefix, ByteCount cursor_pos)
{
return { 0_byte, cursor_pos, complete(prefix, cursor_pos, hooks) };
}
const CommandDesc add_hook_cmd = {
"hook",
nullptr,
"hook <switches> <scope> <hook_name> <filter> <command>: add <command> in <scope> "
"to be executed on hook <hook_name> when its parameter matches the <filter> regex\n"
"scope can be: \n"
" * global: hook is executed for any buffer or window\n"
" * buffer: hook is executed only for the current buffer\n"
" (and any window for that buffer)\n"
" * window: hook is executed only for the current window\n",
ParameterDesc{
{ { "group", { true, "set hook group, see remove-hooks" } } },
ParameterDesc::Flags::None, 4, 4
},
CommandFlags::None,
CommandHelper{},
make_completer(complete_scope, complete_hooks, complete_nothing,
[](const Context& context, CompletionFlags flags,
const String& prefix, ByteCount cursor_pos)
{ return CommandManager::instance().complete(
context, flags, prefix, cursor_pos); }),
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
if (not contains(hooks, parser[1]))
throw runtime_error{format("Unknown hook '{}'", parser[1])};
Regex regex{parser[2], Regex::optimize | Regex::ECMAScript};
const String& command = parser[3];
auto group = parser.get_switch("group").value_or(StringView{});
get_scope(parser[0], context).hooks().add_hook(parser[1], group.str(), std::move(regex), command);
}
};
const CommandDesc remove_hook_cmd = {
"remove-hooks",
"rmhooks",
"remove-hooks <scope> <group>: remove all hooks whose group is <group>",
ParameterDesc{ {}, ParameterDesc::Flags::None, 2, 2 },
CommandFlags::None,
CommandHelper{},
[](const Context& context, CompletionFlags flags,
CommandParameters params, size_t token_to_complete,
ByteCount pos_in_token) -> Completions
{
if (token_to_complete == 0)
return { 0_byte, params[0].length(),
complete(params[0], pos_in_token, scopes) };
else if (token_to_complete == 1)
{
if (auto scope = get_scope_ifp(params[0], context))
return { 0_byte, params[0].length(),
scope->hooks().complete_hook_group(params[1], pos_in_token) };
}
return {};
},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
get_scope(parser[0], context).hooks().remove_hooks(parser[1]);
}
};
Vector<String> params_to_shell(const ParametersParser& parser)
{
Vector<String> vars;
for (size_t i = 0; i < parser.positional_count(); ++i)
vars.push_back(parser[i]);
return vars;
}
void define_command(const ParametersParser& parser, Context& context, const ShellContext&)
{
const String& cmd_name = parser[0];
auto& cm = CommandManager::instance();
if (cm.command_defined(cmd_name) and not parser.get_switch("allow-override"))
throw runtime_error(format("command '{}' already defined", cmd_name));
CommandFlags flags = CommandFlags::None;
if (parser.get_switch("hidden"))
flags = CommandFlags::Hidden;
const String& commands = parser[1];
Command cmd;
ParameterDesc desc;
if (auto params = parser.get_switch("params"))
{
size_t min = 0, max = -1;
StringView counts = *params;
static const Regex re{R"((\d+)?..(\d+)?)"};
MatchResults<const char*> res;
if (regex_match(counts.begin(), counts.end(), res, re))
{
if (res[1].matched)
min = (size_t)str_to_int({res[1].first, res[1].second});
if (res[2].matched)
max = (size_t)str_to_int({res[2].first, res[2].second});
}
else
min = max = (size_t)str_to_int(counts);
desc = ParameterDesc{ {}, ParameterDesc::Flags::SwitchesAsPositional, min, max };
cmd = [=](const ParametersParser& parser, Context& context, const ShellContext& sc) {
CommandManager::instance().execute(commands, context,
{ params_to_shell(parser), sc.env_vars });
};
}
else
{
desc = ParameterDesc{ {}, ParameterDesc::Flags::SwitchesAsPositional, 0, 0 };
cmd = [=](const ParametersParser& parser, Context& context, const ShellContext& sc) {
CommandManager::instance().execute(commands, context, { {}, sc.env_vars });
};
}
CommandCompleter completer;
if (parser.get_switch("file-completion"))
{
completer = [](const Context& context, CompletionFlags flags,
CommandParameters params,
size_t token_to_complete, ByteCount pos_in_token)
{
const String& prefix = params[token_to_complete];
auto& ignored_files = context.options()["ignored_files"].get<Regex>();
return Completions{ 0_byte, pos_in_token,
complete_filename(prefix, ignored_files,
pos_in_token, FilenameFlags::Expand) };
};
}
else if (parser.get_switch("client-completion"))
{
completer = [](const Context& context, CompletionFlags flags,
CommandParameters params,
size_t token_to_complete, ByteCount pos_in_token)
{
const String& prefix = params[token_to_complete];
auto& cm = ClientManager::instance();
return Completions{ 0_byte, pos_in_token,
cm.complete_client_name(prefix, pos_in_token) };
};
}
else if (parser.get_switch("buffer-completion"))
{
completer = [](const Context& context, CompletionFlags flags,
CommandParameters params,
size_t token_to_complete, ByteCount pos_in_token)
{
return complete_buffer_name(context, flags, params[token_to_complete], pos_in_token);
};
}
else if (auto shell_cmd_opt = parser.get_switch("shell-completion"))
{
String shell_cmd = shell_cmd_opt->str();
completer = [=](const Context& context, CompletionFlags flags,
CommandParameters params,
size_t token_to_complete, ByteCount pos_in_token)
{
if (flags & CompletionFlags::Fast) // no shell on fast completion
return Completions{};
ShellContext shell_context{
params,
{ { "token_to_complete", to_string(token_to_complete) },
{ "pos_in_token", to_string(pos_in_token) } }
};
String output = ShellManager::instance().eval(shell_cmd, context, {},
ShellManager::Flags::WaitForStdout,
shell_context).first;
CandidateList candidates;
for (auto& str : split(output, '\n', 0))
candidates.push_back(std::move(str));
return Completions{ 0_byte, pos_in_token, std::move(candidates) };
};
}
else if (auto shell_cmd_opt = parser.get_switch("shell-candidates"))
{
String shell_cmd = shell_cmd_opt->str();
Vector<std::pair<String, UsedLetters>, MemoryDomain::Completion> candidates;
int token = -1;
completer = [shell_cmd, candidates, token](
const Context& context, CompletionFlags flags, CommandParameters params,
size_t token_to_complete, ByteCount pos_in_token) mutable
{
if (flags & CompletionFlags::Start)
token = -1;
if (token != token_to_complete)
{
ShellContext shell_context{
params,
{ { "token_to_complete", to_string(token_to_complete) } }
};
String output = ShellManager::instance().eval(shell_cmd, context, {},
ShellManager::Flags::WaitForStdout,
shell_context).first;
candidates.clear();
for (auto c : output | split<StringView>('\n'))
candidates.emplace_back(c.str(), used_letters(c));
token = token_to_complete;
}
StringView query = params[token_to_complete].substr(0, pos_in_token);
UsedLetters query_letters = used_letters(query);
Vector<RankedMatch> matches;
for (const auto& candidate : candidates)
{
if (RankedMatch match{candidate.first, candidate.second, query, query_letters})
matches.push_back(match);
}
constexpr size_t max_count = 100;
// Gather best max_count matches
auto greater = [](const RankedMatch& lhs,
const RankedMatch& rhs) { return rhs < lhs; };
auto first = matches.begin(), last = matches.end();
std::make_heap(first, last, greater);
CandidateList res;
while (res.size() < max_count and first != last)
{
if (res.empty() or res.back() != first->candidate())
res.push_back(first->candidate().str());
std::pop_heap(first, last--, greater);
}
return Completions{ 0_byte, pos_in_token, std::move(res) };
};
}
else if (parser.get_switch("command-completion"))
{
completer = [](const Context& context, CompletionFlags flags,
CommandParameters params,
size_t token_to_complete, ByteCount pos_in_token)
{
return CommandManager::instance().complete(
context, flags, params, token_to_complete, pos_in_token);
};
}
auto docstring = trim_whitespaces(parser.get_switch("docstring").value_or(StringView{}));
cm.register_command(cmd_name, cmd, docstring.str(), desc, flags, CommandHelper{}, completer);
}
const CommandDesc define_command_cmd = {
"define-command",
"def",
"define-command <switches> <name> <cmds>: define a command <name> executing <cmds>",
ParameterDesc{
{ { "params", { true, "take parameters, accessible to each shell escape as $0..$N\n"
"parameter should take the form <count> or <min>..<max> (both omittable)" } },
{ "allow-override", { false, "allow overriding an existing command" } },
{ "hidden", { false, "do not display the command in completion candidates" } },
{ "docstring", { true, "define the documentation string for command" } },
{ "file-completion", { false, "complete parameters using filename completion" } },
{ "client-completion", { false, "complete parameters using client name completion" } },
{ "buffer-completion", { false, "complete parameters using buffer name completion" } },
{ "command-completion", { false, "complete parameters using kakoune command completion" } },
{ "shell-completion", { true, "complete the parameters using the given shell-script" } },
{ "shell-candidates", { true, "get the parameter candidates using the given shell-script" } } },
ParameterDesc::Flags::None,
2, 2
},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
define_command
};
const CommandDesc alias_cmd = {
"alias",
nullptr,
"alias <scope> <alias> <command>: alias <alias> to <command> in <scope>",
ParameterDesc{{}, ParameterDesc::Flags::None, 3, 3},
CommandFlags::None,
CommandHelper{},
make_completer(complete_scope, complete_nothing, complete_command_name),
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
if (not CommandManager::instance().command_defined(parser[2]))
throw runtime_error(format("Command '{}' does not exist", parser[2]));
AliasRegistry& aliases = get_scope(parser[0], context).aliases();
aliases.add_alias(parser[1], parser[2]);
}
};
const CommandDesc unalias_cmd = {
"unalias",
nullptr,
"unalias <scope> <alias> [<expected>]: remove <alias> from <scope>\n"
"If <expected> is specified, remove <alias> only if its value is <expected>",
ParameterDesc{{}, ParameterDesc::Flags::None, 2, 3},
CommandFlags::None,
CommandHelper{},
make_completer(complete_scope, complete_nothing, complete_command_name),
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
AliasRegistry& aliases = get_scope(parser[0], context).aliases();
if (parser.positional_count() == 3 and
aliases[parser[1]] != parser[2])
return;
aliases.remove_alias(parser[1]);
}
};
const CommandDesc echo_cmd = {
"echo",
nullptr,
"echo <params>...: display given parameters in the status line",
ParameterDesc{
{ { "markup", { false, "parse markup" } },
{ "debug", { false, "write to debug buffer instead of status line" } } },
ParameterDesc::Flags::SwitchesOnlyAtStart
},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
String message = join(parser, ' ', false);
if (parser.get_switch("debug"))
write_to_debug_buffer(message);
else if (parser.get_switch("markup"))
context.print_status(parse_display_line(message));
else
context.print_status({ std::move(message), get_face("StatusLine") });
}
};
const CommandDesc debug_cmd = {
"debug",
nullptr,
"debug <command>: write some debug informations in the debug buffer\n"
"existing commands: info, buffers, options, memory, shared-strings, profile-hash-maps",
ParameterDesc{{}, ParameterDesc::Flags::SwitchesOnlyAtStart, 1},
CommandFlags::None,
CommandHelper{},
make_completer(
[](const Context& context, CompletionFlags flags,
const String& prefix, ByteCount cursor_pos) -> Completions {
auto c = {"info", "buffers", "options", "memory", "shared-strings", "profile-hash-maps"};
return { 0_byte, cursor_pos, complete(prefix, cursor_pos, c) };
}),
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
if (parser[0] == "info")
{
write_to_debug_buffer(format("pid: {}", getpid()));
write_to_debug_buffer(format("session: {}", Server::instance().session()));
#ifdef KAK_DEBUG
write_to_debug_buffer("build: debug");
#else
write_to_debug_buffer("build: release");
#endif
}
else if (parser[0] == "buffers")
{
write_to_debug_buffer("Buffers:");
for (auto& buffer : BufferManager::instance())
write_to_debug_buffer(buffer->debug_description());
}
else if (parser[0] == "options")
{
write_to_debug_buffer("Options:");
for (auto& option : context.options().flatten_options())
write_to_debug_buffer(format(" * {}: {}", option->name(), option->get_as_string()));
}
else if (parser[0] == "memory")
{
auto total = 0;
write_to_debug_buffer("Memory usage:");
for (int domain = 0; domain < (int)MemoryDomain::Count; ++domain)
{
size_t count = domain_allocated_bytes[domain];
total += count;
write_to_debug_buffer(format(" {}: {}", domain_name((MemoryDomain)domain), count));
}
write_to_debug_buffer(format(" Total: {}", total));
#if defined(__GLIBC__) || defined(__CYGWIN__)
write_to_debug_buffer(format(" Malloced: {}", mallinfo().uordblks));
#endif
}
else if (parser[0] == "shared-strings")
{
StringRegistry::instance().debug_stats();
}
else if (parser[0] == "profile-hash-maps")
{
profile_hash_maps();
}
else
throw runtime_error(format("unknown debug command '{}'", parser[0]));
}
};
const CommandDesc source_cmd = {
"source",
nullptr,
"source <filename>: execute commands contained in <filename>",
single_param,
CommandFlags::None,
CommandHelper{},
filename_completer,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
String path = real_path(parse_filename(parser[0]));
String file_content = read_file(path, true);
try
{
CommandManager::instance().execute(file_content, context,
{{}, {{"source", path}}});
}
catch (Kakoune::runtime_error& err)
{
write_to_debug_buffer(format("{}:{}", parser[0], err.what()));
throw;
}
}
};
static String option_doc_helper(const Context& context, CommandParameters params)
{
if (params.size() < 2)
return "";
auto desc = GlobalScope::instance().option_registry().option_desc(params[1]);
if (not desc or desc->docstring().empty())
return "";
return format("{}:\n{}", desc->name(), indent(desc->docstring()));
}
static OptionManager& get_options(StringView scope, const Context& context, StringView option_name)
{
if (scope == "current")
return context.options()[option_name].manager();
return get_scope(scope, context).options();
}
const CommandDesc set_option_cmd = {
"set-option",
"set",
"set-option <switches> <scope> <name> <value>: set option <name> in <scope> to <value>\n"
"<scope> can be global, buffer, window, or current which refers to the narrowest\n"
"scope the option is set in",
ParameterDesc{
{ { "add", { false, "add to option rather than replacing it" } } },
ParameterDesc::Flags::SwitchesOnlyAtStart, 3, 3
},
CommandFlags::None,
option_doc_helper,
[](const Context& context, CompletionFlags,
CommandParameters params, size_t token_to_complete,
ByteCount pos_in_token) -> Completions
{
const bool add = params.size() > 1 and params[0] == "-add";
const int start = add ? 1 : 0;
static constexpr auto scopes = { "global", "buffer", "window", "current" };
if (token_to_complete == start)
return { 0_byte, params[start].length(),
complete(params[start], pos_in_token, scopes) };
else if (token_to_complete == start + 1)
return { 0_byte, params[start + 1].length(),
GlobalScope::instance().option_registry().complete_option_name(params[start + 1], pos_in_token) };
else if (not add and token_to_complete == start + 2 and
GlobalScope::instance().option_registry().option_exists(params[start + 1]))
{
OptionManager& options = get_scope(params[start], context).options();
String val = options[params[start + 1]].get_as_string();
if (prefix_match(val, params[start + 2]))
return { 0_byte, params[start + 2].length(), { std::move(val) } };
}
return Completions{};
},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
Option& opt = get_options(parser[0], context, parser[1]).get_local_option(parser[1]);
if (parser.get_switch("add"))
opt.add_from_string(parser[2]);
else
opt.set_from_string(parser[2]);
}
};
Completions complete_option(const Context& context, CompletionFlags,
CommandParameters params, size_t token_to_complete,
ByteCount pos_in_token)
{
if (token_to_complete == 0)
{
static constexpr auto scopes = { "buffer", "window", "current" };
return { 0_byte, params[0].length(), complete(params[0], pos_in_token, scopes) };
}
else if (token_to_complete == 1)
return { 0_byte, params[1].length(),
GlobalScope::instance().option_registry().complete_option_name(params[1], pos_in_token) };
return Completions{};
}
const CommandDesc unset_option_cmd = {
"unset-option",
"unset",
"unset-option <scope> <name>: remove <name> option from scope, falling back on parent scope value"
"<scope> can be buffer, window, or current which refers to the narrowest\n"
"scope the option is set in",
ParameterDesc{ {}, ParameterDesc::Flags::None, 2, 2 },
CommandFlags::None,
option_doc_helper,
complete_option,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
auto& options = get_options(parser[0], context, parser[1]);
if (&options == &GlobalScope::instance().options())
throw runtime_error("Cannot unset options in global scope");
options.unset_option(parser[1]);
}
};
const CommandDesc update_option_cmd = {
"update-option",
nullptr,
"update-option <scope> <name>: update <name> option from scope\n"
"some option types, such as line-descs or range-descs can be updated to latest buffer timestamp\n"
"<scope> can be buffer, window, or current which refers to the narrowest\n"
"scope the option is set in",
ParameterDesc{ {}, ParameterDesc::Flags::None, 2, 2 },
CommandFlags::None,
option_doc_helper,
complete_option,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
Option& opt = get_options(parser[0], context, parser[1]).get_local_option(parser[1]);
opt.update(context);
}
};
const CommandDesc declare_option_cmd = {
"declare-option",
"decl",
"declare-option <type> <name> [value]: declare option <name> of type <type>.\n"
"set its initial value to <value> if given and the option did not exist\n"
"Available types:\n"
" int: integer\n"
" bool: boolean (true/false or yes/no)\n"
" str: character string\n"
" regex: regular expression\n"
" int-list: list of integers\n"
" str-list: list of character strings\n"
" completions: list of completion candidates\n"
" line-specs: list of line specs\n"
" range-specs: list of range specs\n",
ParameterDesc{
{ { "hidden", { false, "do not display option name when completing" } },
{ "docstring", { true, "specify option description" } } },
ParameterDesc::Flags::SwitchesOnlyAtStart, 2, 3
},
CommandFlags::None,
CommandHelper{},
make_completer(
[](const Context& context, CompletionFlags flags,
const String& prefix, ByteCount cursor_pos) -> Completions {
auto c = {"int", "bool", "str", "regex", "int-list", "str-list", "completions", "line-specs", "range-specs"};
return { 0_byte, cursor_pos, complete(prefix, cursor_pos, c) };
}),
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
Option* opt = nullptr;
OptionFlags flags = OptionFlags::None;
if (parser.get_switch("hidden"))
flags = OptionFlags::Hidden;
auto docstring = trim_whitespaces(parser.get_switch("docstring").value_or(StringView{})).str();
OptionsRegistry& reg = GlobalScope::instance().option_registry();
if (parser[0] == "int")
opt = &reg.declare_option<int>(parser[1], docstring, 0, flags);
else if (parser[0] == "bool")
opt = &reg.declare_option<bool>(parser[1], docstring, false, flags);
else if (parser[0] == "str")
opt = &reg.declare_option<String>(parser[1], docstring, "", flags);
else if (parser[0] == "regex")
opt = &reg.declare_option<Regex>(parser[1], docstring, Regex{}, flags);
else if (parser[0] == "int-list")
opt = &reg.declare_option<Vector<int, MemoryDomain::Options>>(parser[1], docstring, {}, flags);
else if (parser[0] == "str-list")
opt = &reg.declare_option<Vector<String, MemoryDomain::Options>>(parser[1], docstring, {}, flags);
else if (parser[0] == "completions")
opt = &reg.declare_option<CompletionList>(parser[1], docstring, {}, flags);
else if (parser[0] == "line-specs")
opt = &reg.declare_option<TimestampedList<LineAndSpec>>(parser[1], docstring, {}, flags);
else if (parser[0] == "range-specs")
opt = &reg.declare_option<TimestampedList<RangeAndString>>(parser[1], docstring, {}, flags);
else
throw runtime_error(format("unknown type {}", parser[0]));
if (parser.positional_count() == 3)
opt->set_from_string(parser[2]);
}
};
KeymapMode parse_keymap_mode(const String& str)
{
if (prefix_match("normal", str)) return KeymapMode::Normal;
if (prefix_match("insert", str)) return KeymapMode::Insert;
if (prefix_match("menu", str)) return KeymapMode::Menu;
if (prefix_match("prompt", str)) return KeymapMode::Prompt;
if (prefix_match("goto", str)) return KeymapMode::Goto;
if (prefix_match("view", str)) return KeymapMode::View;
if (prefix_match("user", str)) return KeymapMode::User;
if (prefix_match("object", str)) return KeymapMode::Object;
throw runtime_error(format("unknown keymap mode '{}'", str));
}
auto map_key_completer =
[](const Context& context, CompletionFlags flags,
CommandParameters params, size_t token_to_complete,
ByteCount pos_in_token) -> Completions
{
if (token_to_complete == 0)
return { 0_byte, params[0].length(),
complete(params[0], pos_in_token, scopes) };
if (token_to_complete == 1)
{
constexpr const char* modes[] = { "normal", "insert", "menu", "prompt", "goto", "view", "user", "object" };
return { 0_byte, params[1].length(),
complete(params[1], pos_in_token, modes) };
}
return {};
};
const CommandDesc map_key_cmd = {
"map",
nullptr,
"map <scope> <mode> <key> <keys>: map <key> to <keys> in given mode in <scope>.\n"
"<mode> can be:\n"
" normal\n"
" insert\n"
" menu\n"
" prompt\n"
" goto\n"
" view\n"
" user\n"
" object\n",
ParameterDesc{
{ { "docstring", { true, "specify mapping description" } } },
ParameterDesc::Flags::None, 4, 4
},
CommandFlags::None,
CommandHelper{},
map_key_completer,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
KeymapManager& keymaps = get_scope(parser[0], context).keymaps();
KeymapMode keymap_mode = parse_keymap_mode(parser[1]);
KeyList key = parse_keys(parser[2]);
if (key.size() != 1)
throw runtime_error("only a single key can be mapped");
KeyList mapping = parse_keys(parser[3]);
keymaps.map_key(key[0], keymap_mode, std::move(mapping),
trim_whitespaces(parser.get_switch("docstring").value_or("")).str());
}
};
const CommandDesc unmap_key_cmd = {
"unmap",
nullptr,
"unmap <scope> <mode> <key> [<expected-keys>]: unmap <key> from given mode in <scope>.\n"
"If <expected> is specified, remove the mapping only if its value is <expected>\n"
"<mode> can be:\n"
" normal\n"
" insert\n"
" menu\n"
" prompt\n"
" goto\n"
" view\n"
" user\n"
" object\n",
ParameterDesc{{}, ParameterDesc::Flags::None, 3, 4},
CommandFlags::None,
CommandHelper{},
map_key_completer,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
KeymapManager& keymaps = get_scope(parser[0], context).keymaps();
KeymapMode keymap_mode = parse_keymap_mode(parser[1]);
KeyList key = parse_keys(parser[2]);
if (key.size() != 1)
throw runtime_error("only a single key can be mapped");
if (keymaps.is_mapped(key[0], keymap_mode) and
(parser.positional_count() < 4 or
(keymaps.get_mapping(key[0], keymap_mode).keys ==
parse_keys(parser[3]))))
keymaps.unmap_key(key[0], keymap_mode);
}
};
const ParameterDesc context_wrap_params = {
{ { "client", { true, "run in given client context" } },
{ "try-client", { true, "run in given client context if it exists, or else in the current one" } },
{ "buffer", { true, "run in a disposable context for each given buffer in the comma separated list argument" } },
{ "draft", { false, "run in a disposable context" } },
{ "no-hooks", { false, "disable hooks" } },
{ "with-maps", { false, "use user defined key mapping when executing keys" } },
{ "itersel", { false, "run once for each selection with that selection as the only one" } },
{ "save-regs", { true, "restore all given registers after execution (defaults to '/\"|^@')" } },
{ "collapse-jumps", { false, "collapse all jumps into a single one from initial selection" } } },
ParameterDesc::Flags::SwitchesOnlyAtStart, 1
};
class RegisterRestorer
{
public:
RegisterRestorer(char name, Context& context)
: m_context{context}, m_name{name}
{
ConstArrayView<String> save = RegisterManager::instance()[name].get(context);
m_save = Vector<String>(save.begin(), save.end());
}
RegisterRestorer(RegisterRestorer&& other) noexcept
: m_context{other.m_context}, m_save{std::move(other.m_save)}, m_name{other.m_name}
{
other.m_name = 0;
}
~RegisterRestorer()
{
if (m_name != 0) try
{
RegisterManager::instance()[m_name].set(m_context, m_save);
}
catch (runtime_error& e)
{
write_to_debug_buffer(format("Could not restore register '{}': {}",
m_name, e.what()));
}
}
private:
Vector<String> m_save;
Context& m_context;
char m_name;
};
template<typename Func>
void context_wrap(const ParametersParser& parser, Context& context, Func func)
{
if ((int)(bool)parser.get_switch("buffer") +
(int)(bool)parser.get_switch("client") +
(int)(bool)parser.get_switch("try-client") > 1)
throw runtime_error{"Only one of -buffer, -client or -try-client can be specified"};
const bool no_hooks = parser.get_switch("no-hooks") or context.hooks_disabled();
const bool no_keymaps = not parser.get_switch("with-maps");
Vector<RegisterRestorer> saved_registers;
for (auto& r : parser.get_switch("save-regs").value_or("/\"|^@"))
saved_registers.emplace_back(r, context);
if (auto bufnames = parser.get_switch("buffer"))
{
auto context_wrap_for_buffer = [&](Buffer& buffer) {
InputHandler input_handler{{ buffer, Selection{} },
Context::Flags::Transient};
Context& c = input_handler.context();
ScopedSetBool disable_hooks(c.hooks_disabled(), no_hooks);
ScopedSetBool disable_keymaps(c.keymaps_disabled(), no_keymaps);
ScopedSetBool disable_history(c.history_disabled());
func(parser, c);
};
if (*bufnames == "*")
{
// copy buffer list as we might be mutating the buffer list
// in the loop.
auto ptrs = BufferManager::instance() |
transform(std::mem_fn(&std::unique_ptr<Buffer>::get)) |
filter([](Buffer* buf) { return not (buf->flags() & Buffer::Flags::Debug); });
Vector<SafePtr<Buffer>> buffers{ptrs.begin(), ptrs.end()};
for (auto buffer : buffers)
context_wrap_for_buffer(*buffer);
}
else
for (auto& name : split(*bufnames, ','))
context_wrap_for_buffer(BufferManager::instance().get_buffer(name));
return;
}
ClientManager& cm = ClientManager::instance();
Context* base_context = &context;
if (auto client_name = parser.get_switch("client"))
base_context = &cm.get_client(*client_name).context();
else if (auto client_name = parser.get_switch("try-client"))
{
if (Client* client = cm.get_client_ifp(*client_name))
base_context = &client->context();
}
Optional<InputHandler> input_handler;
Context* effective_context = base_context;
const bool draft = (bool)parser.get_switch("draft");
if (draft)
{
input_handler.emplace(base_context->selections(),
Context::Flags::Transient,
base_context->name());
effective_context = &input_handler->context();
// Preserve window so that window scope is available
if (base_context->has_window())
effective_context->set_window(base_context->window());
// We do not want this draft context to commit undo groups if the real one is
// going to commit the whole thing later
if (base_context->is_editing())
effective_context->disable_undo_handling();
}
Context& c = *effective_context;
ScopedSetBool disable_hooks(c.hooks_disabled(), no_hooks);
ScopedSetBool disable_keymaps(c.keymaps_disabled(), no_keymaps);
ScopedSetBool disable_history(c.history_disabled());
if (parser.get_switch("itersel"))
{
SelectionList sels{base_context->selections()};
Vector<Selection> new_sels;
size_t main = 0;
size_t timestamp = c.buffer().timestamp();
ScopedEdition edition{c};
for (auto& sel : sels)
{
c.selections_write_only() = SelectionList{ sels.buffer(), sel, sels.timestamp() };
c.selections().update();
func(parser, c);
if (&sels.buffer() != &c.buffer())
throw runtime_error("the buffer has changed while iterating on selections");
if (not draft)
{
update_selections(new_sels, main, c.buffer(), timestamp);
timestamp = c.buffer().timestamp();
for (auto& sel : c.selections())
new_sels.push_back(sel);
}
}
if (not draft)
{
c.selections_write_only() = SelectionList(c.buffer(), new_sels);
c.selections().sort_and_merge_overlapping();
}
}
else
{
const bool collapse_jumps = not draft and (bool)parser.get_switch("collapse-jumps");
SelectionList jump = c.selections();
JumpList original_jump_list = collapse_jumps ? c.jump_list() : JumpList{};
func(parser, c);
if (collapse_jumps and c.jump_list() != original_jump_list)
{
c.jump_list() = std::move(original_jump_list);
c.jump_list().push(std::move(jump));
}
}
}
const CommandDesc exec_string_cmd = {
"exec",
nullptr,
"exec <switches> <keys>: execute given keys as if entered by user",
context_wrap_params,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
context_wrap(parser, context, [](const ParametersParser& parser, Context& context) {
KeyList keys;
for (auto& param : parser)
{
KeyList param_keys = parse_keys(param);
keys.insert(keys.end(), param_keys.begin(), param_keys.end());
}
ScopedEdition edition(context);
for (auto& key : keys)
context.input_handler().handle_key(key);
});
}
};
const CommandDesc eval_string_cmd = {
"eval",
nullptr,
"eval <switches> <commands>...: execute commands as if entered by user",
context_wrap_params,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext& shell_context)
{
context_wrap(parser, context, [&](const ParametersParser& parser, Context& context) {
String command = join(parser, ' ', false);
ScopedEdition edition(context);
CommandManager::instance().execute(command, context, shell_context);
});
}
};
struct CapturedShellContext
{
explicit CapturedShellContext(const ShellContext& sc)
: params{sc.params.begin(), sc.params.end()}, env_vars{sc.env_vars} {}
Vector<String> params;
EnvVarMap env_vars;
operator ShellContext() const { return { params, env_vars }; }
};
const CommandDesc prompt_cmd = {
"prompt",
nullptr,
"prompt <prompt> <command>: prompt the user to enter a text string "
"and then executes <command>, entered text is available in the 'text' value",
ParameterDesc{
{ { "init", { true, "set initial prompt content" } },
{ "password", { false, "Do not display entered text and clear reg after command" } },
{ "file-completion", { false, "use file completion for prompt" } },
{ "client-completion", { false, "use client completion for prompt" } },
{ "buffer-completion", { false, "use buffer completion for prompt" } },
{ "command-completion", { false, "use command completion for prompt" } },
{ "on-change", { true, "command to execute whenever the prompt changes" } },
{ "on-abort", { true, "command to execute whenever the prompt is canceled" } } },
ParameterDesc::Flags::None, 2, 2
},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext& shell_context)
{
const String& command = parser[1];
auto initstr = parser.get_switch("init").value_or(StringView{});
Completer completer;
if (parser.get_switch("file-completion"))
completer = [](const Context& context, CompletionFlags,
StringView prefix, ByteCount cursor_pos) -> Completions {
auto& ignored_files = context.options()["ignored_files"].get<Regex>();
return { 0_byte, cursor_pos,
complete_filename(prefix, ignored_files, cursor_pos,
FilenameFlags::Expand) };
};
else if (parser.get_switch("client-completion"))
completer = [](const Context& context, CompletionFlags,
StringView prefix, ByteCount cursor_pos) -> Completions {
return { 0_byte, cursor_pos,
ClientManager::instance().complete_client_name(prefix, cursor_pos) };
};
else if (parser.get_switch("buffer-completion"))
completer = complete_buffer_name;
else if (parser.get_switch("command-completion"))
completer = [](const Context& context, CompletionFlags flags,
StringView prefix, ByteCount cursor_pos) -> Completions {
return CommandManager::instance().complete(
context, flags, prefix, cursor_pos);
};
const auto flags = parser.get_switch("password") ?
PromptFlags::Password : PromptFlags::None;
String on_change = parser.get_switch("on-change").value_or("").str();
String on_abort = parser.get_switch("on-abort").value_or("").str();
CapturedShellContext sc{shell_context};
context.input_handler().prompt(
parser[0], initstr.str(), get_face("Prompt"),
flags, std::move(completer),
[=](StringView str, PromptEvent event, Context& context) mutable
{
if ((event == PromptEvent::Abort and on_abort.empty()) or
(event == PromptEvent::Change and on_change.empty()))
return;
auto& text = sc.env_vars["text"_sv] = str.str();
auto clear_password = on_scope_end([&] {
if (flags & PromptFlags::Password)
memset(text.data(), 0, (int)text.length());
});
ScopedSetBool disable_history{context.history_disabled()};
StringView cmd;
switch (event)
{
case PromptEvent::Validate: cmd = command; break;
case PromptEvent::Change: cmd = on_change; break;
case PromptEvent::Abort: cmd = on_abort; break;
}
CommandManager::instance().execute(cmd, context, sc);
});
}
};
const CommandDesc menu_cmd = {
"menu",
nullptr,
"menu <switches> <name1> <commands1> <name2> <commands2>...: display a "
"menu and execute commands for the selected item",
ParameterDesc{
{ { "auto-single", { false, "instantly validate if only one item is available" } },
{ "select-cmds", { false, "each item specify an additional command to run when selected" } },
{ "markup", { false, "parse menu entries as markup text" } } }
},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext& shell_context)
{
const bool with_select_cmds = (bool)parser.get_switch("select-cmds");
const bool markup = (bool)parser.get_switch("markup");
const size_t modulo = with_select_cmds ? 3 : 2;
const size_t count = parser.positional_count();
if (count == 0 or (count % modulo) != 0)
throw wrong_argument_count();
if (count == modulo and parser.get_switch("auto-single"))
{
ScopedSetBool disable_history{context.history_disabled()};
CommandManager::instance().execute(parser[1], context);
return;
}
Vector<DisplayLine> choices;
Vector<String> commands;
Vector<String> select_cmds;
for (int i = 0; i < count; i += modulo)
{
choices.push_back(markup ? parse_display_line(parser[i])
: DisplayLine{ parser[i], {} });
commands.push_back(parser[i+1]);
if (with_select_cmds)
select_cmds.push_back(parser[i+2]);
}
CapturedShellContext sc{shell_context};
context.input_handler().menu(std::move(choices),
[=](int choice, MenuEvent event, Context& context) {
ScopedSetBool disable_history{context.history_disabled()};
if (event == MenuEvent::Validate and choice >= 0 and choice < commands.size())
CommandManager::instance().execute(commands[choice], context, sc);
if (event == MenuEvent::Select and choice >= 0 and choice < select_cmds.size())
CommandManager::instance().execute(select_cmds[choice], context, sc);
});
}
};
const CommandDesc on_key_cmd = {
"on-key",
nullptr,
"on-key <command>: wait for next user key then and execute <command>, "
"with key available in the `key` value",
single_param,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext& shell_context)
{
String command = parser[0];
CapturedShellContext sc{shell_context};
context.input_handler().on_next_key(
KeymapMode::None, [=](Key key, Context& context) mutable {
sc.env_vars["key"_sv] = key_to_str(key);
ScopedSetBool disable_history{context.history_disabled()};
CommandManager::instance().execute(command, context, sc);
});
}
};
const CommandDesc info_cmd = {
"info",
nullptr,
"info <switches> <params>...: display an info box with the params as content",
ParameterDesc{
{ { "anchor", { true, "set info anchoring <line>.<column>" } },
{ "placement", { true, "set placement relative to anchor (above, below)" } },
{ "title", { true, "set info title" } } },
ParameterDesc::Flags::None, 0, 1
},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
if (not context.has_client())
return;
context.client().info_hide();
if (parser.positional_count() > 0)
{
InfoStyle style = InfoStyle::Prompt;
BufferCoord pos;
if (auto anchor = parser.get_switch("anchor"))
{
auto dot = find(*anchor, '.');
if (dot == anchor->end())
throw runtime_error("expected <line>.<column> for anchor");
pos = BufferCoord{str_to_int({anchor->begin(), dot})-1,
str_to_int({dot+1, anchor->end()})-1};
style = InfoStyle::Inline;
if (auto placement = parser.get_switch("placement"))
{
if (*placement == "above")
style = InfoStyle::InlineAbove;
else if (*placement == "below")
style = InfoStyle::InlineBelow;
else
throw runtime_error(format("invalid placement '{}'", *placement));
}
}
auto title = parser.get_switch("title").value_or(StringView{});
context.client().info_show(title.str(), parser[0], pos, style);
}
}
};
const CommandDesc try_catch_cmd = {
"try",
nullptr,
"try <cmds> [catch <error_cmds>]: execute <cmds> in current context.\n"
"if an error is raised and <error_cmds> is specified, execute it; "
"The error is not propagated further.",
ParameterDesc{{}, ParameterDesc::Flags::None, 1, 3},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext& shell_context)
{
if (parser.positional_count() == 2)
throw wrong_argument_count();
const bool do_catch = parser.positional_count() == 3;
if (do_catch and parser[1] != "catch")
throw runtime_error("usage: try <commands> [catch <on error commands>]");
CommandManager& command_manager = CommandManager::instance();
try
{
command_manager.execute(parser[0], context, shell_context);
}
catch (Kakoune::runtime_error& e)
{
if (do_catch)
command_manager.execute(parser[2], context, shell_context);
}
}
};
static Completions complete_face(const Context&, CompletionFlags flags,
const String& prefix, ByteCount cursor_pos)
{
return {0_byte, cursor_pos,
FaceRegistry::instance().complete_alias_name(prefix, cursor_pos)};
}
const CommandDesc set_face_cmd = {
"set-face",
"face",
"set-face <name> <facespec>: set face <name> to refer to <facespec>\n"
"\n"
"facespec format is <fg color>[,<bg color>][+<attributes>]\n"
"colors are either a color name, or rgb:###### values.\n"
"attributes is a combination of:\n"
" u: underline, i: italic, b: bold, r: reverse,\n"
" B: blink, d: dim, e: exclusive\n"
"facespec can as well just be the name of another face" ,
ParameterDesc{{}, ParameterDesc::Flags::None, 2, 2},
CommandFlags::None,
CommandHelper{},
make_completer(complete_face, complete_face),
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
FaceRegistry::instance().register_alias(parser[0], parser[1], true);
for (auto& client : ClientManager::instance())
client->force_redraw();
}
};
const CommandDesc rename_client_cmd = {
"rename-client",
"nc",
"rename-client <name>: set current client name to <name>",
single_param,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
if (ClientManager::instance().validate_client_name(parser[0]))
context.set_name(parser[0]);
else if (context.name() != parser[0])
throw runtime_error(format("client name '{}' is not unique", parser[0]));
}
};
const CommandDesc set_register_cmd = {
"set-register",
"reg",
"set-register <name> <value>: set register <name> to <value>",
ParameterDesc{{}, ParameterDesc::Flags::SwitchesAsPositional, 2, 2},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
RegisterManager::instance()[parser[0]].set(context, {parser[1]});
}
};
const CommandDesc select_cmd = {
"select",
nullptr,
"select <selections_desc>: select given selections",
single_param,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
context.selections_write_only() = selection_list_from_string(context.buffer(), parser[0]);
}
};
const CommandDesc change_directory_cmd = {
"change-directory",
"cd",
"change-directory [<directory>]: change the server's working directory to <directory>, or the home directory if unspecified",
single_optional_param,
CommandFlags::None,
CommandHelper{},
make_completer(
[](const Context& context, CompletionFlags flags,
const String& prefix, ByteCount cursor_pos) -> Completions {
return { 0_byte, cursor_pos,
complete_filename(prefix,
context.options()["ignored_files"].get<Regex>(),
cursor_pos, FilenameFlags::OnlyDirectories) };
}),
[](const ParametersParser& parser, Context&, const ShellContext&)
{
StringView target = parser.positional_count() == 1 ? StringView{parser[0]} : "~";
if (chdir(parse_filename(target).c_str()) != 0)
throw runtime_error(format("cannot change to directory '{}'", target));
for (auto& buffer : BufferManager::instance())
buffer->update_display_name();
}
};
const CommandDesc rename_session_cmd = {
"rename-session",
nullptr,
"rename-session <name>: change remote session name",
single_param,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context&, const ShellContext&)
{
if (not Server::instance().rename_session(parser[0]))
throw runtime_error(format("Cannot rename current session: '{}' may be already in use", parser[0]));
}
};
}
void register_commands()
{
CommandManager& cm = CommandManager::instance();
cm.register_command("nop", [](const ParametersParser&, Context&, const ShellContext&){}, "do nothing", {});
auto register_command = [&](const CommandDesc& c)
{
cm.register_command(c.name, c.func, c.docstring, c.params, c.flags, c.helper, c.completer);
if (c.alias)
GlobalScope::instance().aliases().add_alias(c.alias, c.name);
};
register_command(edit_cmd);
register_command(force_edit_cmd);
register_command(write_cmd);
register_command(force_write_cmd);
register_command(write_all_cmd);
register_command(write_all_quit_cmd);
register_command(kill_cmd);
register_command(force_kill_cmd);
register_command(quit_cmd);
register_command(force_quit_cmd);
register_command(write_quit_cmd);
register_command(force_write_quit_cmd);
register_command(buffer_cmd);
register_command(buffer_next_cmd);
register_command(buffer_previous_cmd);
register_command(delete_buffer_cmd);
register_command(force_delete_buffer_cmd);
register_command(rename_buffer_cmd);
register_command(add_highlighter_cmd);
register_command(remove_highlighter_cmd);
register_command(add_hook_cmd);
register_command(remove_hook_cmd);
register_command(define_command_cmd);
register_command(alias_cmd);
register_command(unalias_cmd);
register_command(echo_cmd);
register_command(debug_cmd);
register_command(source_cmd);
register_command(set_option_cmd);
register_command(unset_option_cmd);
register_command(update_option_cmd);
register_command(declare_option_cmd);
register_command(map_key_cmd);
register_command(unmap_key_cmd);
register_command(exec_string_cmd);
register_command(eval_string_cmd);
register_command(prompt_cmd);
register_command(menu_cmd);
register_command(on_key_cmd);
register_command(info_cmd);
register_command(try_catch_cmd);
register_command(set_face_cmd);
register_command(rename_client_cmd);
register_command(set_register_cmd);
register_command(select_cmd);
register_command(change_directory_cmd);
register_command(rename_session_cmd);
}
}