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kakoune/src/commands.cc

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#include "commands.hh"
#include "buffer.hh"
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#include "buffer_manager.hh"
#include "buffer_utils.hh"
#include "client.hh"
#include "client_manager.hh"
#include "command_manager.hh"
#include "completion.hh"
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#include "context.hh"
#include "event_manager.hh"
#include "face_registry.hh"
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#include "file.hh"
#include "hash_map.hh"
#include "highlighter.hh"
#include "highlighters.hh"
#include "insert_completer.hh"
#include "option_manager.hh"
#include "option_types.hh"
#include "parameters_parser.hh"
#include "ranges.hh"
#include "ranked_match.hh"
#include "regex.hh"
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#include "register_manager.hh"
#include "remote.hh"
#include "shell_manager.hh"
#include "string.hh"
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#include "user_interface.hh"
#include "window.hh"
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#include <functional>
#include <utility>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
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#if defined(__GLIBC__) || defined(__CYGWIN__)
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#include <malloc.h>
#endif
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namespace Kakoune
{
namespace
{
Buffer* open_fifo(StringView name, StringView filename, Buffer::Flags flags, bool scroll)
{
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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,
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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);
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const ParameterDesc no_params{ {}, ParameterDesc::Flags::None, 0, 0 };
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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" };
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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(
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context, prefix.substr(0, cursor_pos));
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}
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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;
}
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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;
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void (*func)(const ParametersParser&, Context&, const ShellContext&);
};
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template<bool force_reload>
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void edit(const ParametersParser& parser, Context& context, const ShellContext&)
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{
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();
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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;
}
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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);
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if (param_count > 1 and not parser[1].empty())
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{
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;
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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);
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}
}
ParameterDesc edit_params{
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{ { "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" } },
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{ "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
};
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const CommandDesc edit_cmd = {
"edit",
"e",
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"edit [<switches>] <filename> [<line> [<column>]]: open the given filename in a buffer",
edit_params,
CommandFlags::None,
CommandHelper{},
filename_completer,
edit<false>
};
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const CommandDesc force_edit_cmd = {
"edit!",
"e!",
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"edit! [<switches>] <filename> [<line> [<column>]]: open the given filename in a buffer, "
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"force reload if needed",
edit_params,
CommandFlags::None,
CommandHelper{},
filename_completer,
edit<true>
};
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template<bool force = false>
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void write_buffer(const ParametersParser& parser, Context& context, const ShellContext&)
{
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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");
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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);
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}
const CommandDesc write_cmd = {
"write",
"w",
"write [filename]: write the current buffer to its file "
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"or to [filename] if specified",
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single_optional_param,
CommandFlags::None,
CommandHelper{},
filename_completer,
write_buffer,
};
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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 = {
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"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); }
};
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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{},
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[](const ParametersParser&, Context&, const ShellContext&){ throw kill_session{}; }
};
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template<bool force>
void quit(const ParametersParser& parser, Context& context, const ShellContext&)
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{
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);
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}
const CommandDesc quit_cmd = {
"quit",
"q",
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"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>
};
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const CommandDesc force_quit_cmd = {
"quit!",
"q!",
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"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>
};
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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);
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}
const CommandDesc write_quit_cmd = {
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"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{},
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write_quit<false>
};
const CommandDesc force_write_quit_cmd = {
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"write-quit!",
"wq!",
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"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{},
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write_quit<true>
};
const CommandDesc write_all_quit_cmd = {
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"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",
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single_param,
CommandFlags::None,
CommandHelper{},
buffer_completer,
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[](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);
}
}
};
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template<bool next>
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void cycle_buffer(const ParametersParser& parser, Context& context, const ShellContext&)
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{
Buffer* oldbuf = &context.buffer();
auto it = find_if(BufferManager::instance(),
[oldbuf](const std::unique_ptr<Buffer>& lhs)
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{ 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();
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if (newbuf != oldbuf)
{
context.push_jump();
context.change_buffer(*newbuf);
}
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}
const CommandDesc buffer_next_cmd = {
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"buffer-next",
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"bn",
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"buffer-next: move to the next buffer in the list",
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no_params,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
cycle_buffer<true>
};
const CommandDesc buffer_previous_cmd = {
"buffer-previous",
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"bp",
"buffer-previous: move to the previous buffer in the list",
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no_params,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
cycle_buffer<false>
};
template<bool force>
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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);
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}
const CommandDesc delete_buffer_cmd = {
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"delete-buffer",
"db",
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"delete-buffer [name]: delete current buffer or the buffer named <name> if given",
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single_optional_param,
CommandFlags::None,
CommandHelper{},
buffer_completer,
delete_buffer<false>
};
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const CommandDesc force_delete_buffer_cmd = {
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"delete-buffer!",
"db!",
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"delete-buffer! [name]: delete current buffer or the buffer named <name> if "
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"given, even if the buffer is unsaved",
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single_optional_param,
CommandFlags::None,
CommandHelper{},
buffer_completer,
delete_buffer<true>
};
const CommandDesc rename_buffer_cmd = {
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"rename-buffer",
nullptr,
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"rename-buffer <name>: change current buffer name",
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single_param,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
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[](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"))
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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 = {
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"add-highlighter",
"addhl",
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"add-highlighter <type> <type params>...: add an highlighter",
ParameterDesc{
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{ { "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())
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return format("{}:\n{}", params[0], indent(it->value.docstring));
}
return "";
},
add_highlighter_completer,
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[](const ParametersParser& parser, Context& context, const ShellContext&)
{
HighlighterRegistry& registry = HighlighterRegistry::instance();
auto begin = parser.begin();
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const String& name = *begin++;
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Vector<String> highlighter_params;
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for (; begin != parser.end(); ++begin)
highlighter_params.push_back(*begin);
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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));
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group.add_child(it->value.factory(highlighter_params));
if (context.has_window())
context.window().force_redraw();
}
};
const CommandDesc remove_highlighter_cmd = {
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"remove-highlighter",
"rmhl",
"remove-highlighter <name>: remove highlighter <name>",
single_param,
CommandFlags::None,
CommandHelper{},
remove_highlighter_completer,
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[](const ParametersParser& parser, Context& context, const ShellContext&)
{
StringView path = parser[0];
auto sep_it = find(path | reverse(), '/');
auto& group = sep_it != path.rend() ?
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get_highlighter(context, {path.begin(), sep_it.base()})
: context.window().highlighters();
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group.remove_child({sep_it.base(), path.end()});
if (context.has_window())
context.window().force_redraw();
}
};
static constexpr auto hooks = {
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"BufCreate", "BufNewFile", "BufOpenFile", "BufClose", "BufWritePost",
"BufWritePre", "BufOpenFifo", "BufCloseFifo", "BufReadFifo", "BufSetOption",
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"InsertBegin", "InsertChar", "InsertDelete", "InsertEnd", "InsertIdle", "InsertKey",
"InsertMove", "InsertCompletionHide", "InsertCompletionShow",
"KakBegin", "KakEnd", "FocusIn", "FocusOut", "RuntimeError", "PromptIdle",
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"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"
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" * 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{
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{ { "group", { true, "set hook group, see remove-hooks" } } },
ParameterDesc::Flags::None, 4, 4
},
CommandFlags::None,
CommandHelper{},
make_completer(complete_scope, complete_hooks, complete_nothing,
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[](const Context& context, CompletionFlags flags,
const String& prefix, ByteCount cursor_pos)
{ return CommandManager::instance().complete(
context, flags, prefix, cursor_pos); }),
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[](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};
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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 = {
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"remove-hooks",
"rmhooks",
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"remove-hooks <scope> <group>: remove all hooks whose group is <group>",
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ParameterDesc{ {}, ParameterDesc::Flags::None, 2, 2 },
CommandFlags::None,
CommandHelper{},
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[](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) };
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else if (token_to_complete == 1)
{
if (auto scope = get_scope_ifp(params[0], context))
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return { 0_byte, params[0].length(),
scope->hooks().complete_hook_group(params[1], pos_in_token) };
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}
return {};
},
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[](const ParametersParser& parser, Context& context, const ShellContext&)
{
get_scope(parser[0], context).hooks().remove_hooks(parser[1]);
}
};
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Vector<String> params_to_shell(const ParametersParser& parser)
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{
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Vector<String> vars;
for (size_t i = 0; i < parser.positional_count(); ++i)
vars.push_back(parser[i]);
return vars;
}
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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 });
};
}
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else
{
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desc = ParameterDesc{ {}, ParameterDesc::Flags::SwitchesAsPositional, 0, 0 };
cmd = [=](const ParametersParser& parser, Context& context, const ShellContext& sc) {
CommandManager::instance().execute(commands, context, { {}, sc.env_vars });
};
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}
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) } }
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};
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;
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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);
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}
const CommandDesc define_command_cmd = {
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"define-command",
"def",
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"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 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>",
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ParameterDesc{{}, ParameterDesc::Flags::None, 3, 3},
CommandFlags::None,
CommandHelper{},
make_completer(complete_scope, complete_nothing, complete_command_name),
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[](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,
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"unalias <scope> <alias> [<expected>]: remove <alias> from <scope>\n"
"If <expected> is specified, remove <alias> only if its value is <expected>",
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ParameterDesc{{}, ParameterDesc::Flags::None, 2, 3},
CommandFlags::None,
CommandHelper{},
make_completer(complete_scope, complete_nothing, complete_command_name),
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[](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" } },
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{ "debug", { false, "write to debug buffer instead of status line" } } },
ParameterDesc::Flags::SwitchesOnlyAtStart
},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
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[](const ParametersParser& parser, Context& context, const ShellContext&)
{
String message = fix_atom_text(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") });
}
};
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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));
}
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const CommandDesc debug_cmd = {
"debug",
nullptr,
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"debug <command>: write some debug informations in the debug buffer\n"
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"existing commands: info, buffers, options, memory, shared-strings, profile-hash-maps, faces",
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ParameterDesc{{}, ParameterDesc::Flags::SwitchesOnlyAtStart, 1},
CommandFlags::None,
CommandHelper{},
make_completer(
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[](const Context& context, CompletionFlags flags,
const String& prefix, ByteCount cursor_pos) -> Completions {
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auto c = {"info", "buffers", "options", "memory", "shared-strings",
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"profile-hash-maps", "faces", "mappings"};
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return { 0_byte, cursor_pos, complete(prefix, cursor_pos, c) };
}),
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[](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
}
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else if (parser[0] == "buffers")
{
write_to_debug_buffer("Buffers:");
for (auto& buffer : BufferManager::instance())
write_to_debug_buffer(buffer->debug_description());
}
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else if (parser[0] == "options")
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{
write_to_debug_buffer("Options:");
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for (auto& option : context.options().flatten_options())
write_to_debug_buffer(format(" * {}: {}", option->name(), option->get_as_string()));
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}
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));
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#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();
}
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else if (parser[0] == "faces")
{
write_to_debug_buffer("Faces:");
for (auto& face : FaceRegistry::instance().aliases())
write_to_debug_buffer(format(" * {}: {}", face.key, face.value.face));
}
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else if (parser[0] == "mappings")
{
auto& keymaps = context.keymaps();
auto modes = {"normal", "insert", "prompt", "menu",
"goto", "view", "user", "object"};
write_to_debug_buffer("Mappings:");
for (auto& mode : modes)
{
KeymapMode m = parse_keymap_mode(mode);
for (auto& key : keymaps.get_mapped_keys(m))
write_to_debug_buffer(format(" * {} {}: {}",
mode, key_to_str(key),
keymaps.get_mapping(key, m).docstring));
}
}
else
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throw runtime_error(format("unknown debug command '{}'", parser[0]));
}
};
const CommandDesc source_cmd = {
"source",
nullptr,
"source <filename>: execute commands contained in <filename>",
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single_param,
CommandFlags::None,
CommandHelper{},
filename_completer,
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[](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;
}
}
};
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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 "
"scope the option is set in",
ParameterDesc{
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{ { "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{};
},
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[](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\n"
"<scope> can be buffer, window, or current which refers to the narrowest "
"scope the option is set in",
ParameterDesc{ {}, ParameterDesc::Flags::None, 2, 2 },
CommandFlags::None,
option_doc_helper,
complete_option,
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[](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 "
"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 = {
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"declare-option",
"decl",
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"declare-option <type> <name> [value]: declare option <name> of type <type>.\n"
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"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{
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{ { "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) };
}),
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[](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();
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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")
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opt = &reg.declare_option<Vector<int, MemoryDomain::Options>>(parser[1], docstring, {}, flags);
else if (parser[0] == "str-list")
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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]);
}
};
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,
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"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"
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" user\n"
" object\n",
ParameterDesc{
{ { "docstring", { true, "specify mapping description" } } },
ParameterDesc::Flags::None, 4, 4
},
CommandFlags::None,
CommandHelper{},
map_key_completer,
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[](const ParametersParser& parser, Context& context, const ShellContext&)
{
KeymapManager& keymaps = get_scope(parser[0], context).keymaps();
KeymapMode keymap_mode = parse_keymap_mode(parser[1]);
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KeyList key = parse_keys(parser[2]);
if (key.size() != 1)
throw runtime_error("only a single key can be mapped");
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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());
}
};
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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 = {
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{ { "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)
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{
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 (not draft)
{
if (&sels.buffer() != &c.buffer())
throw runtime_error("the buffer has changed while iterating on selections");
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{},
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[](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());
}
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ScopedEdition edition(context);
for (auto& key : keys)
context.input_handler().handle_key(key);
});
}
};
const CommandDesc eval_string_cmd = {
"eval",
nullptr,
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"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 }; }
};
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const CommandDesc prompt_cmd = {
"prompt",
nullptr,
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"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
},
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CommandFlags::None,
CommandHelper{},
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CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext& shell_context)
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{
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};
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context.input_handler().prompt(
parser[0], initstr.str(), get_face("Prompt"),
flags, std::move(completer),
[=](StringView str, PromptEvent event, Context& context) mutable
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{
if ((event == PromptEvent::Abort and on_abort.empty()) or
(event == PromptEvent::Change and on_change.empty()))
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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);
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});
}
};
const CommandDesc menu_cmd = {
"menu",
nullptr,
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"menu <switches> <name1> <commands1> <name2> <commands2>...: display a "
"menu and execute commands for the selected item",
ParameterDesc{
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{ { "auto-single", { false, "instantly validate if only one item is available" } },
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{ "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");
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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;
}
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Vector<DisplayLine> choices;
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Vector<String> commands;
Vector<String> select_cmds;
for (int i = 0; i < count; i += modulo)
{
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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]);
}
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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{
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{ { "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{},
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[](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,
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"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.",
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ParameterDesc{{}, ParameterDesc::Flags::None, 1, 3},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
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[](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
{
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command_manager.execute(parser[0], context, shell_context);
}
catch (Kakoune::runtime_error& e)
{
if (do_catch)
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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"
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"\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",
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ParameterDesc{{}, ParameterDesc::Flags::None, 2, 2},
CommandFlags::None,
CommandHelper{},
make_completer(complete_face, complete_face),
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[](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 = {
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"rename-client",
"nc",
"rename-client <name>: set current client name to <name>",
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single_param,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
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[](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{},
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[](const ParametersParser& parser, Context& context, const ShellContext&)
{
RegisterManager::instance()[parser[0]].set(context, {parser[1]});
}
};
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const CommandDesc select_cmd = {
"select",
nullptr,
"select <selections_desc>: select given selections\n"
"\n"
"selections_desc format is <anchor_line>.<anchor_column>,<cursor_line>.<cursor_column>:...",
single_param,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
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[](const ParametersParser& parser, Context& context, const ShellContext&)
{
context.selections_write_only() = selection_list_from_string(context.buffer(), parser[0]);
}
};
const CommandDesc change_directory_cmd = {
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"change-directory",
"cd",
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"change-directory [<directory>]: change the server's working directory to <directory>, or the home directory if unspecified",
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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) };
}),
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[](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();
}
};
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const CommandDesc rename_session_cmd = {
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"rename-session",
nullptr,
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"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]));
}
};
}
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void register_commands()
{
CommandManager& cm = CommandManager::instance();
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cm.register_command("nop", [](const ParametersParser&, Context&, const ShellContext&){}, "do nothing", {});
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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);
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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);
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register_command(add_highlighter_cmd);
register_command(remove_highlighter_cmd);
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register_command(add_hook_cmd);
register_command(remove_hook_cmd);
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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);
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register_command(declare_option_cmd);
register_command(map_key_cmd);
register_command(unmap_key_cmd);
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register_command(exec_string_cmd);
register_command(eval_string_cmd);
register_command(prompt_cmd);
register_command(menu_cmd);
register_command(on_key_cmd);
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register_command(info_cmd);
register_command(try_catch_cmd);
register_command(set_face_cmd);
register_command(rename_client_cmd);
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register_command(set_register_cmd);
register_command(select_cmd);
register_command(change_directory_cmd);
register_command(rename_session_cmd);
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}
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}