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d32a660863
kakoune/src/commands.cc
Frank LENORMAND d32a660863 src: Document the base face syntax in :set-face
2019-12-02 11:37:31 +01:00

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#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 "context.hh"
#include "event_manager.hh"
#include "face_registry.hh"
#include "file.hh"
#include "hash_map.hh"
#include "highlighter.hh"
#include "highlighters.hh"
#include "insert_completer.hh"
#include "normal.hh"
#include "option_manager.hh"
#include "option_types.hh"
#include "parameters_parser.hh"
#include "ranges.hh"
#include "ranked_match.hh"
#include "regex.hh"
#include "register_manager.hh"
#include "remote.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
{
extern const char* version;
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)...};
}
template<typename Completer>
auto add_flags(Completer completer, Completions::Flags completions_flags)
{
return [completer=std::move(completer), completions_flags]
(const Context& context, CompletionFlags flags, const String& prefix, ByteCount cursor_pos) {
Completions res = completer(context, flags, prefix, cursor_pos);
res.flags |= completions_flags;
return res;
};
}
template<typename Completer>
auto menu(Completer completer)
{
return add_flags(std::move(completer), Completions::Flags::Menu);
}
template<bool menu>
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),
menu ? Completions::Flags::Menu : Completions::Flags::None}; });
template<bool ignore_current = false>
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())
{
if (ignore_current and buffer.get() == &context.buffer())
continue;
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 make_single_word_completer(std::function<String (const Context&)> func)
{
return make_completer(
[func](const Context& context, CompletionFlags flags,
const String& prefix, ByteCount cursor_pos) -> Completions {
auto candidate = { func(context) };
return { 0_byte, cursor_pos, complete(prefix, cursor_pos, candidate) }; });
}
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 };
const ParameterDesc double_params{ {}, ParameterDesc::Flags::None, 2, 2 };
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));
}
struct ShellScriptCompleter
{
ShellScriptCompleter(String shell_script,
Completions::Flags flags = Completions::Flags::None)
: m_shell_script{std::move(shell_script)}, m_flags(flags) {}
Completions operator()(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(m_shell_script, context, {},
ShellManager::Flags::WaitForStdout,
shell_context).first;
CandidateList candidates;
for (auto&& candidate : output | split<StringView>('\n'))
candidates.push_back(candidate.str());
return {0_byte, pos_in_token, std::move(candidates), m_flags};
}
private:
String m_shell_script;
Completions::Flags m_flags;
};
struct ShellCandidatesCompleter
{
ShellCandidatesCompleter(String shell_script,
Completions::Flags flags = Completions::Flags::None)
: m_shell_script{std::move(shell_script)}, m_flags(flags) {}
Completions operator()(const Context& context, CompletionFlags flags,
CommandParameters params, size_t token_to_complete,
ByteCount pos_in_token)
{
if (flags & CompletionFlags::Start)
m_token = -1;
if (m_token != token_to_complete)
{
ShellContext shell_context{
params,
{ { "token_to_complete", to_string(token_to_complete) } }
};
String output = ShellManager::instance().eval(m_shell_script, context, {},
ShellManager::Flags::WaitForStdout,
shell_context).first;
m_candidates.clear();
for (auto c : output | split<StringView>('\n'))
m_candidates.emplace_back(c.str(), used_letters(c));
m_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 : m_candidates)
{
if (RankedMatch match{candidate.first, candidate.second, query, query_letters})
matches.push_back(match);
}
constexpr size_t max_count = 100;
CandidateList res;
// Gather best max_count matches
for_n_best(matches, max_count, [](auto& lhs, auto& rhs) { return rhs < lhs; },
[&] (const RankedMatch& m) {
if (not res.empty() and res.back() == m.candidate())
return false;
res.push_back(m.candidate().str());
return true;
});
return Completions{0_byte, pos_in_token, std::move(res), m_flags};
}
private:
String m_shell_script;
Vector<std::pair<String, UsedLetters>, MemoryDomain::Completion> m_candidates;
int m_token = -1;
Completions::Flags m_flags;
};
template<typename Completer>
struct PromptCompleterAdapter
{
PromptCompleterAdapter(Completer completer) : m_completer{completer} {}
Completions operator()(const Context& context, CompletionFlags flags,
StringView prefix, ByteCount cursor_pos)
{
return m_completer(context, flags, {String{String::NoCopy{}, prefix}}, 0, cursor_pos);
}
private:
Completer m_completer;
};
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("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&)
{
const bool scratch = (bool)parser.get_switch("scratch");
if (parser.positional_count() == 0 and not force_reload and not scratch)
throw wrong_argument_count();
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);
auto& buffer_manager = BufferManager::instance();
auto generate_scratch_name = [&] {
for (int i = 0; true; ++i)
{
String name = format("*scratch-{}*", i);
if (buffer_manager.get_buffer_ifp(name) == nullptr)
return name;
}
};
const auto& name = parser.positional_count() > 0 ?
parser[0] : (scratch ? generate_scratch_name() : context.buffer().name());
Buffer* buffer = buffer_manager.get_buffer_ifp(name);
if (scratch)
{
if (parser.get_switch("readonly") or parser.get_switch("fifo") or parser.get_switch("scroll"))
throw runtime_error("scratch is not compatible with readonly, fifo or scroll");
if (buffer == nullptr or force_reload)
{
if (buffer != nullptr and force_reload)
buffer_manager.delete_buffer(*buffer);
buffer = buffer_manager.create_buffer(std::move(name), flags);
}
else if (buffer->flags() & Buffer::Flags::File)
throw runtime_error(format("buffer '{}' exists but is not a scratch buffer", name));
}
else if (force_reload and buffer and buffer->flags() & Buffer::Flags::File)
{
reload_file_buffer(*buffer);
}
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),
context.faces()["StatusLine"] });
}
buffer->flags() &= ~Buffer::Flags::NoHooks;
if (parser.get_switch("readonly"))
buffer->flags() |= Buffer::Flags::ReadOnly;
}
Buffer* current_buffer = context.has_buffer() ? &context.buffer() : nullptr;
const size_t param_count = parser.positional_count();
if (current_buffer and (buffer != current_buffer or param_count > 1))
context.push_jump();
if (buffer != current_buffer)
context.change_buffer(*buffer);
buffer = &context.buffer(); // change_buffer hooks might change the buffer again
if (parser.get_switch("fifo") and not parser.get_switch("scroll"))
context.selections_write_only() = { *buffer, Selection{} };
else 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 exist, 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" } },
{ "readonly", { false, "create a buffer in readonly mode" } },
{ "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<false>,
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<false>,
edit<true>
};
const ParameterDesc write_params{
{
{ "sync", { false, "force the synchronization of the file onto the filesystem" } },
{ "atomic", { false, "force the writemethod to replace" } },
},
ParameterDesc::Flags::SwitchesOnlyAtStart, 0, 1
};
void do_write_buffer(Context& context, Optional<String> filename, WriteFlags flags, bool atomic = false)
{
Buffer& buffer = context.buffer();
if (not filename 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 (not filename or real_path(*filename) == buffer.name()))
throw runtime_error("cannot overwrite the buffer when in readonly mode");
auto effective_filename = not filename ? buffer.name() : parse_filename(*filename);
auto mode = atomic ? WriteMethod::Replace : context.options()["writemethod"].get<WriteMethod>();
context.hooks().run_hook(Hook::BufWritePre, effective_filename, context);
write_buffer_to_file(buffer, effective_filename, mode, flags);
context.hooks().run_hook(Hook::BufWritePost, effective_filename, context);
}
template<bool force = false>
void write_buffer(const ParametersParser& parser, Context& context, const ShellContext&)
{
return do_write_buffer(context,
parser.positional_count() > 0 ? parser[0] : Optional<String>{},
(parser.get_switch("sync") ? WriteFlags::Sync : WriteFlags::None) |
(force ? WriteFlags::Force : WriteFlags::None),
(bool)parser.get_switch("atomic"));
}
const CommandDesc write_cmd = {
"write",
"w",
"write [-sync] [<filename>]: write the current buffer to its file "
"or to <filename> if specified",
write_params,
CommandFlags::None,
CommandHelper{},
filename_completer<false>,
write_buffer,
};
const CommandDesc force_write_cmd = {
"write!",
"w!",
"write! [-sync] [<filename>]: write the current buffer to its file "
"or to <filename> if specified, even when the file is write protected",
write_params,
CommandFlags::None,
CommandHelper{},
filename_completer<false>,
write_buffer<true>,
};
void write_all_buffers(const Context& context, bool sync = false)
{
// 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->flags() & Buffer::Flags::New) or
buffer->is_modified())
and !(buffer->flags() & Buffer::Flags::ReadOnly))
{
auto mode = context.options()["writemethod"].get<WriteMethod>();
buffer->run_hook_in_own_context(Hook::BufWritePre, buffer->name(), context.name());
write_buffer_to_file(*buffer, buffer->name(), mode, sync ? WriteFlags::Sync : WriteFlags::None);
buffer->run_hook_in_own_context(Hook::BufWritePost, buffer->name(), context.name());
}
}
}
const CommandDesc write_all_cmd = {
"write-all",
"wa",
"write-all [-sync]: write all changed buffers that are associated to a file",
ParameterDesc{
{ { "sync", { false, "force the synchronization of the file onto the filesystem" } } },
ParameterDesc::Flags::None, 0, 0
},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&){
write_all_buffers(context, (bool)parser.get_switch("sync"));
}
};
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 = format("{} modified buffers remaining: [",
std::count_if(it, end, is_modified));
while (it != end)
{
message += (*it)->name();
it = std::find_if(it+1, end, is_modified);
message += (it != end) ? ", " : "]";
}
throw runtime_error(message);
}
template<bool force>
void kill(const ParametersParser& parser, Context& context, const ShellContext&)
{
auto& client_manager = ClientManager::instance();
if (not force)
ensure_all_buffers_are_saved();
const int status = parser.positional_count() > 0 ? str_to_int(parser[0]) : 0;
while (not client_manager.empty())
client_manager.remove_client(**client_manager.begin(), true, status);
throw kill_session{status};
}
const CommandDesc kill_cmd = {
"kill",
nullptr,
"kill [<exit status>]: terminate the current session, the server and all clients connected. "
"An optional integer parameter can set the server and client processes exit status",
{ {}, ParameterDesc::Flags::SwitchesAsPositional, 0, 1 },
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
kill<false>
};
const CommandDesc force_kill_cmd = {
"kill!",
nullptr,
"kill! [<exit status>]: force the termination of the current session, the server and all clients connected. "
"An optional integer parameter can set the server and client processes exit status",
{ {}, ParameterDesc::Flags::SwitchesAsPositional, 0, 1 },
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
kill<true>
};
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 [<exit status>]: 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! [<exit status>]: 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)
{
do_write_buffer(context, {}, parser.get_switch("sync") ? WriteFlags::Sync : WriteFlags::None);
quit<force>(parser, context, shell_context);
}
const CommandDesc write_quit_cmd = {
"write-quit",
"wq",
"write-quit [-sync] [<exit status>]: write current buffer and quit current client. "
"An optional integer parameter can set the client exit status",
write_params,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
write_quit<false>
};
const CommandDesc force_write_quit_cmd = {
"write-quit!",
"wq!",
"write-quit! [-sync] [<exit status>] write: current buffer and quit current client, even if other buffers are not saved. "
"An optional integer parameter can set the client exit status",
write_params,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
write_quit<true>
};
const CommandDesc write_all_quit_cmd = {
"write-all-quit",
"waq",
"write-all-quit [-sync] [<exit status>]: write all buffers associated to a file and quit current client. "
"An optional integer parameter can set the client exit status.",
write_params,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext& shell_context)
{
write_all_buffers(context, (bool)parser.get_switch("sync"));
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{},
make_completer(menu(complete_buffer_name<true>)),
[](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);
context.forget_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{},
make_completer(menu(complete_buffer_name<false>)),
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{},
make_completer(menu(complete_buffer_name<false>)),
delete_buffer<true>
};
const CommandDesc rename_buffer_cmd = {
"rename-buffer",
nullptr,
"rename-buffer <name>: change current buffer name",
single_param,
CommandFlags::None,
CommandHelper{},
filename_completer<false>,
[](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 '{}': a buffer with this name already exists", parser[0]));
}
};
static constexpr auto highlighter_scopes = { "global/", "buffer/", "window/", "shared/" };
template<bool add>
Completions highlighter_cmd_completer(
const Context& context, CompletionFlags flags, CommandParameters params,
size_t token_to_complete, ByteCount pos_in_token)
{
if (token_to_complete == 0)
{
StringView path = params[0];
auto sep_it = find(path, '/');
if (sep_it == path.end())
return { 0_byte, pos_in_token, complete(path, pos_in_token, highlighter_scopes) };
StringView scope{path.begin(), sep_it};
HighlighterGroup* root = nullptr;
if (scope == "shared")
root = &DefinedHighlighters::instance();
else if (auto* s = get_scope_ifp(scope, context))
root = &s->highlighters().group();
else
return {};
auto offset = scope.length() + 1;
return offset_pos(root->complete_child(StringView{sep_it+1, path.end()}, pos_in_token - offset, add), offset);
}
else if (add and token_to_complete == 1)
{
StringView name = params[1];
return { 0_byte, name.length(), complete(name, pos_in_token, HighlighterRegistry::instance() | transform(&HighlighterRegistry::Item::key)) };
}
else
return {};
}
Highlighter& get_highlighter(const Context& context, StringView path)
{
if (not path.empty() and path.back() == '/')
path = path.substr(0_byte, path.length() - 1);
auto sep_it = find(path, '/');
StringView scope{path.begin(), sep_it};
auto* root = (scope == "shared") ? static_cast<HighlighterGroup*>(&DefinedHighlighters::instance())
: static_cast<HighlighterGroup*>(&get_scope(scope, context).highlighters().group());
if (sep_it != path.end())
return root->get_child(StringView{sep_it+1, path.end()});
return *root;
}
const CommandDesc add_highlighter_cmd = {
"add-highlighter",
"addhl",
"add-highlighter <path>/<name> <type> <type params>...: add an highlighter to the group identified by <path>\n"
" <path> is a '/' delimited path or the parent highlighter, starting with either\n"
" 'global', 'buffer', 'window' or 'shared', if <name> is empty, it will be autogenerated",
ParameterDesc{ {}, ParameterDesc::Flags::SwitchesAsPositional, 2 },
CommandFlags::None,
[](const Context& context, CommandParameters params) -> String
{
if (params.size() > 1)
{
HighlighterRegistry& registry = HighlighterRegistry::instance();
auto it = registry.find(params[1]);
if (it != registry.end())
return format("{}:\n{}", params[1], indent(it->value.docstring));
}
return "";
},
highlighter_cmd_completer<true>,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
HighlighterRegistry& registry = HighlighterRegistry::instance();
auto begin = parser.begin();
StringView path = *begin++;
StringView type = *begin++;
Vector<String> highlighter_params;
for (; begin != parser.end(); ++begin)
highlighter_params.push_back(*begin);
auto it = registry.find(type);
if (it == registry.end())
throw runtime_error(format("no such highlighter type: '{}'", type));
auto slash = find(path | reverse(), '/');
if (slash == path.rend())
throw runtime_error("no parent in path");
auto auto_name = [](ConstArrayView<String> params) {
return join(params | transform([](StringView s) { return replace(s, "/", "<slash>"); }), "_");
};
String name{slash.base(), path.end()};
Highlighter& parent = get_highlighter(context, {path.begin(), slash.base() - 1});
parent.add_child(name.empty() ? auto_name(parser.positionals_from(1)) : std::move(name),
it->value.factory(highlighter_params, &parent));
// TODO: better, this will fail if we touch scopes highlighters that impact multiple windows
if (context.has_window())
context.window().force_redraw();
}
};
const CommandDesc remove_highlighter_cmd = {
"remove-highlighter",
"rmhl",
"remove-highlighter <path>: remove highlighter identified by <path>",
single_param,
CommandFlags::None,
CommandHelper{},
highlighter_cmd_completer<false>,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
StringView path = parser[0];
if (not path.empty() and path.back() == '/') // ignore trailing /
path = path.substr(0_byte, path.length() - 1_byte);
auto rev_path = path | reverse();
auto sep_it = find(rev_path, '/');
if (sep_it == rev_path.end())
return;
get_highlighter(context, {path.begin(), sep_it.base()}).remove_child({sep_it.base(), path.end()});
if (context.has_window())
context.window().force_redraw();
}
};
static Completions complete_hooks(const Context&, CompletionFlags,
const String& prefix, ByteCount cursor_pos)
{
return { 0_byte, cursor_pos, complete(prefix, cursor_pos, enum_desc(Meta::Type<Hook>{}) | transform(&EnumDesc<Hook>::name)) };
}
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" } },
{ "always", { false, "run hook even if hooks are disabled" } },
{ "once", { false, "run the hook only once" } } },
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&)
{
auto descs = enum_desc(Meta::Type<Hook>{});
auto it = find_if(descs, [&](const EnumDesc<Hook>& desc) { return desc.name == parser[1]; });
if (it == descs.end())
throw runtime_error{format("no such hook: '{}'", parser[1])};
Regex regex{parser[2], RegexCompileFlags::Optimize};
const String& command = parser[3];
auto group = parser.get_switch("group").value_or(StringView{});
if (any_of(group, [](char c) { return not is_word(c, { '-' }); }) or
(not group.empty() and not is_word(group[0])))
throw runtime_error{format("invalid group name '{}'", group)};
const auto flags = (parser.get_switch("always") ? HookFlags::Always : HookFlags::None) |
(parser.get_switch("once") ? HookFlags::Once : HookFlags::None);
get_scope(parser[0], context).hooks().add_hook(it->value, group.str(), flags,
std::move(regex), command);
}
};
const CommandDesc remove_hook_cmd = {
"remove-hooks",
"rmhooks",
"remove-hooks <scope> <group>: remove all hooks whose group matches the regex <group>",
double_params,
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(Regex{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 (not all_of(cmd_name, is_identifier))
throw runtime_error(format("invalid command name: '{}'", cmd_name));
if (cm.command_defined(cmd_name) and not parser.get_switch("override"))
throw runtime_error(format("command '{}' already defined", cmd_name));
CommandFlags flags = CommandFlags::None;
if (parser.get_switch("hidden"))
flags = CommandFlags::Hidden;
const Completions::Flags completions_flags = parser.get_switch("menu") ?
Completions::Flags::Menu : Completions::Flags::None;
const String& commands = parser[1];
CommandFunc 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];
const 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),
completions_flags};
};
}
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),
completions_flags};
};
}
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 add_flags(complete_buffer_name<false>, completions_flags)(
context, flags, params[token_to_complete], pos_in_token);
};
}
else if (auto shell_script = parser.get_switch("shell-script-completion"))
{
completer = ShellScriptCompleter{shell_script->str(), completions_flags};
}
else if (auto shell_script = parser.get_switch("shell-script-candidates"))
{
completer = ShellCandidatesCompleter{shell_script->str(), completions_flags};
}
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);
};
}
else if (parser.get_switch("shell-completion"))
{
completer = [=](const Context& context, CompletionFlags flags,
CommandParameters params,
size_t token_to_complete, ByteCount pos_in_token)
{
return add_flags(shell_complete, completions_flags)(
context, flags, params[token_to_complete], pos_in_token);
};
}
auto docstring = trim_indent(parser.get_switch("docstring").value_or(StringView{}));
cm.register_command(cmd_name, cmd, docstring, 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)" } },
{ "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" } },
{ "menu", { false, "treat completions as the only valid inputs" } },
{ "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", { false, "complete parameters using shell command completion" } },
{ "shell-script-completion", { true, "complete parameters using the given shell-script" } },
{ "shell-script-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("no such command: '{}'", parser[2]));
AliasRegistry& aliases = get_scope(parser[0], context).aliases();
aliases.add_alias(parser[1], parser[2]);
}
};
static Completions complete_alias(const Context& context, CompletionFlags flags,
const String& prefix, ByteCount cursor_pos)
{
return {0_byte, cursor_pos,
complete(prefix, cursor_pos, context.aliases().flatten_aliases() |
transform([](auto& entry) -> const String& { return entry.key; }))};
}
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_alias, 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" } },
{ "quoting", { true, "quote each argument separately using the given style (raw|kakoune|shell)" } },
{ "to-file", { true, "echo contents to given filename" } },
{ "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;
if (auto quoting = parser.get_switch("quoting"))
message = join(parser | transform(quoter(option_from_string(Meta::Type<Quoting>{}, *quoting))),
' ', false);
else
message = join(parser, ' ', false);
if (auto filename = parser.get_switch("to-file"))
return write_to_file(*filename, message);
message = fix_atom_text(message);
if (parser.get_switch("debug"))
write_to_debug_buffer(message);
else if (parser.get_switch("markup"))
context.print_status(parse_display_line(message, context.faces()));
else
context.print_status({replace(message, '\t', ' '), context.faces()["StatusLine"]});
}
};
KeymapMode parse_keymap_mode(StringView str, const KeymapManager::UserModeList& user_modes)
{
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;
auto it = find(user_modes, str);
if (it == user_modes.end())
throw runtime_error(format("no such keymap mode: '{}'", str));
char offset = static_cast<char>(KeymapMode::FirstUserMode);
return (KeymapMode)(std::distance(user_modes.begin(), it) + offset);
}
static constexpr auto modes = { "normal", "insert", "menu", "prompt", "goto", "view", "user", "object" };
const CommandDesc debug_cmd = {
"debug",
nullptr,
"debug <command>: write some debug information to the *debug* buffer",
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", "faces", "mappings", "regex"};
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("version: {}", version));
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(Quoting::Kakoune)));
}
else if (parser[0] == "memory")
{
auto total = 0;
write_to_debug_buffer("Memory usage:");
for (int domain = 0; domain < (int)MemoryDomain::Count; ++domain)
{
auto& stats = memory_stats[domain];
total += stats.allocated_bytes;
write_to_debug_buffer(
format(" {}: {} bytes, {} alloc active, {} alloc total",
domain_name((MemoryDomain)domain),
stats.allocated_bytes,
stats.allocation_count,
stats.total_allocation_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 if (parser[0] == "faces")
{
write_to_debug_buffer("Faces:");
for (auto& face : context.faces().flatten_faces())
write_to_debug_buffer(format(" * {}: {}", face.key, face.value.face));
}
else if (parser[0] == "mappings")
{
auto& keymaps = context.keymaps();
auto user_modes = keymaps.user_modes();
write_to_debug_buffer("Mappings:");
for (auto& mode : concatenated(modes, user_modes) | gather<Vector<String>>())
{
KeymapMode m = parse_keymap_mode(mode, user_modes);
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 if (parser[0] == "regex")
{
if (parser.positional_count() != 2)
throw runtime_error("expected a regex");
write_to_debug_buffer(format(" * {}:\n{}",
parser[1], dump_regex(compile_regex(parser[1], RegexCompileFlags::None))));
}
else
throw runtime_error(format("no such debug command: '{}'", parser[0]));
}
};
const CommandDesc source_cmd = {
"source",
nullptr,
"source <filename> <params>...: execute commands contained in <filename>\n"
"parameters are available in the sourced script as %arg{0}, %arg{1}, …",
ParameterDesc{ {}, ParameterDesc::Flags::None, 1, (size_t)-1 },
CommandFlags::None,
CommandHelper{},
filename_completer<true>,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
const DebugFlags debug_flags = context.options()["debug"].get<DebugFlags>();
const bool profile = debug_flags & DebugFlags::Profile;
auto start_time = profile ? Clock::now() : Clock::time_point{};
String path = real_path(parse_filename(parser[0]));
MappedFile file_content{path};
try
{
auto params = parser | skip(1) | gather<Vector<String>>();
CommandManager::instance().execute(file_content, context,
{params, {{"source", path}}});
}
catch (Kakoune::runtime_error& err)
{
write_to_debug_buffer(format("{}:{}", parser[0], err.what()));
throw;
}
using namespace std::chrono;
if (profile)
write_to_debug_buffer(format("sourcing '{}' took {} us", parser[0],
(size_t)duration_cast<microseconds>(Clock::now() - start_time).count()));
}
};
static String option_doc_helper(const Context& context, CommandParameters params)
{
const bool add = params.size() > 1 and params[0] == "-add";
if (params.size() < 2 + (add ? 1 : 0))
return "";
auto desc = GlobalScope::instance().option_registry().option_desc(params[1 + (add ? 1 : 0)]);
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{
{ { "add", { false, "add to option rather than replacing it" } } },
ParameterDesc::Flags::SwitchesOnlyAtStart, 2, (size_t)-1
},
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 params[start + 2].empty() and
GlobalScope::instance().option_registry().option_exists(params[start + 1]))
{
OptionManager& options = get_scope(params[start], context).options();
return {0_byte, params[start + 2].length(),
{options[params[start + 1]].get_as_string(Quoting::Kakoune)},
Completions::Flags::Quoted};
}
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_strings(parser.positionals_from(2));
else
opt.set_from_strings(parser.positionals_from(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",
double_params,
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-specs or range-specs 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",
double_params,
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 [<switches>] <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"
" str-to-str-map: map from strings to strings\n",
ParameterDesc{
{ { "hidden", { false, "do not display option name when completing" } },
{ "docstring", { true, "specify option description" } } },
ParameterDesc::Flags::SwitchesOnlyAtStart, 2, (size_t)-1
},
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", "str-to-str-map"};
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_indent(parser.get_switch("docstring").value_or(StringView{}));
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 if (parser[0] == "str-to-str-map")
opt = &reg.declare_option<HashMap<String, String, MemoryDomain::Options>>(parser[1], docstring, {}, flags);
else
throw runtime_error(format("no such option type: '{}'", parser[0]));
if (parser.positional_count() > 2)
opt->set_from_strings(parser.positionals_from(2));
}
};
template<bool unmap>
static Completions map_key_completer(const Context& context, CompletionFlags flags,
CommandParameters params, size_t token_to_complete,
ByteCount pos_in_token)
{
if (token_to_complete == 0)
return { 0_byte, params[0].length(),
complete(params[0], pos_in_token, scopes) };
if (token_to_complete == 1)
{
auto& user_modes = get_scope(params[0], context).keymaps().user_modes();
return { 0_byte, params[1].length(),
complete(params[1], pos_in_token, concatenated(modes, user_modes) | gather<Vector<String>>()) };
}
if (unmap and token_to_complete == 2)
{
KeymapManager& keymaps = get_scope(params[0], context).keymaps();
KeymapMode keymap_mode = parse_keymap_mode(params[1], keymaps.user_modes());
KeyList keys = keymaps.get_mapped_keys(keymap_mode);
return { 0_byte, params[2].length(),
complete(params[2], pos_in_token,
keys | transform([](Key k) { return key_to_str(k); })
| gather<Vector<String>>()) };
}
return {};
}
const CommandDesc map_key_cmd = {
"map",
nullptr,
"map [<switches>] <scope> <mode> <key> <keys>: map <key> to <keys> in given <mode> in <scope>",
ParameterDesc{
{ { "docstring", { true, "specify mapping description" } } },
ParameterDesc::Flags::None, 4, 4
},
CommandFlags::None,
CommandHelper{},
map_key_completer<false>,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
KeymapManager& keymaps = get_scope(parser[0], context).keymaps();
KeymapMode keymap_mode = parse_keymap_mode(parser[1], keymaps.user_modes());
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_indent(parser.get_switch("docstring").value_or("")));
}
};
const CommandDesc unmap_key_cmd = {
"unmap",
nullptr,
"unmap <scope> <mode> [<key> [<expected-keys>]]: unmap <key> from given <mode> in <scope>.\n"
"If <expected-keys> is specified, remove the mapping only if its value is <expected-keys>.\n"
"If only <scope> and <mode> are specified remove all mappings",
ParameterDesc{{}, ParameterDesc::Flags::None, 2, 4},
CommandFlags::None,
CommandHelper{},
map_key_completer<true>,
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
KeymapManager& keymaps = get_scope(parser[0], context).keymaps();
KeymapMode keymap_mode = parse_keymap_mode(parser[1], keymaps.user_modes());
if (parser.positional_count() == 2)
{
keymaps.unmap_keys(keymap_mode);
return;
}
KeyList key = parse_keys(parser[2]);
if (key.size() != 1)
throw runtime_error("only a single key can be unmapped");
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);
}
};
template<size_t... P>
ParameterDesc make_context_wrap_params_impl(Array<HashItem<String, SwitchDesc>, sizeof...(P)>&& additional_params,
std::index_sequence<P...>)
{
return { { { "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" } },
{ "itersel", { false, "run once for each selection with that selection as the only one" } },
{ "save-regs", { true, "restore all given registers after execution" } },
std::move(additional_params[P])...},
ParameterDesc::Flags::SwitchesOnlyAtStart, 1
};
}
template<size_t N>
ParameterDesc make_context_wrap_params(Array<HashItem<String, SwitchDesc>, N>&& additional_params)
{
return make_context_wrap_params_impl(std::move(additional_params), std::make_index_sequence<N>());
}
template<typename Func>
void context_wrap(const ParametersParser& parser, Context& context, StringView default_saved_regs, 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 auto& register_manager = RegisterManager::instance();
auto make_register_restorer = [&](char c) {
return on_scope_end([&, c, save=register_manager[c].save(context)] {
try
{
RegisterManager::instance()[c].restore(context, save);
}
catch (runtime_error& err)
{
write_to_debug_buffer(format("failed to restore register '{}': {}", c, err.what()));
}
});
};
Vector<decltype(make_register_restorer(0))> saved_registers;
for (auto c : parser.get_switch("save-regs").value_or(default_saved_regs))
saved_registers.push_back(make_register_restorer(c));
if (auto bufnames = parser.get_switch("buffer"))
{
auto context_wrap_for_buffer = [&](Buffer& buffer) {
InputHandler input_handler{{ buffer, Selection{} },
Context::Flags::Draft};
Context& c = input_handler.context();
ScopedSetBool disable_history(c.history_disabled());
func(parser, c);
};
if (*bufnames == "*")
{
for (auto&& buffer : BufferManager::instance()
| transform(&std::unique_ptr<Buffer>::get)
| filter([](Buffer* buf) { return not (buf->flags() & Buffer::Flags::Debug); })
| gather<Vector<SafePtr<Buffer>>>()) // gather as we might be mutating the buffer list in the loop.
context_wrap_for_buffer(*buffer);
}
else
for (auto&& name : *bufnames | split<StringView>(','))
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::Draft,
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_history(c.history_disabled());
ScopedEdition edition{c};
if (parser.get_switch("itersel"))
{
SelectionList sels{base_context->selections()};
Vector<Selection> new_sels;
size_t main = 0;
size_t timestamp = c.buffer().timestamp();
bool one_selection_succeeded = false;
for (auto& sel : sels)
{
c.selections_write_only() = SelectionList{sels.buffer(), sel, sels.timestamp()};
c.selections().update();
try
{
func(parser, c);
one_selection_succeeded = true;
if (&sels.buffer() != &c.buffer())
throw runtime_error("buffer has changed while iterating on selections");
if (not draft)
{
update_selections(new_sels, main, c.buffer(), timestamp);
timestamp = c.buffer().timestamp();
if (&sel == &sels.main())
main = new_sels.size() + c.selections().main_index();
const auto middle = new_sels.insert(new_sels.end(), c.selections().begin(), c.selections().end());
std::inplace_merge(new_sels.begin(), middle, new_sels.end(), compare_selections);
}
}
catch (no_selections_remaining&) {}
}
if (not one_selection_succeeded)
{
c.selections_write_only() = std::move(sels);
throw no_selections_remaining{};
}
if (not draft)
c.selections_write_only().set(std::move(new_sels), main);
}
else
{
const bool collapse_jumps = not (c.flags() & Context::Flags::Draft) and context.has_buffer();
auto& jump_list = c.jump_list();
const size_t prev_index = jump_list.current_index();
auto jump = collapse_jumps ? c.selections() : Optional<SelectionList>{};
func(parser, c);
// If the jump list got mutated, collapse all jumps into a single one from original selections
if (auto index = jump_list.current_index();
collapse_jumps and index > prev_index and
contains(BufferManager::instance(), &jump->buffer()))
jump_list.push(std::move(*jump), prev_index);
}
}
const CommandDesc exec_string_cmd = {
"execute-keys",
"exec",
"execute-keys [<switches>] <keys>: execute given keys as if entered by user",
make_context_wrap_params<2>({{
{"with-maps", {false, "use user defined key mapping when executing keys"}},
{"with-hooks", {false, "trigger hooks while executing keys"}}
}}),
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
context_wrap(parser, context, "/\"|^@:", [](const ParametersParser& parser, Context& context) {
ScopedSetBool disable_keymaps(context.keymaps_disabled(), not parser.get_switch("with-maps"));
ScopedSetBool disable_hoooks(context.hooks_disabled(), not parser.get_switch("with-hooks"));
KeyList keys;
for (auto& param : parser)
{
KeyList param_keys = parse_keys(param);
keys.insert(keys.end(), param_keys.begin(), param_keys.end());
}
for (auto& key : keys)
context.input_handler().handle_key(key);
});
}
};
const CommandDesc eval_string_cmd = {
"evaluate-commands",
"eval",
"evaluate-commands [<switches>] <commands>...: execute commands as if entered by user",
make_context_wrap_params<2>({{
{"no-hooks", { false, "disable hooks while executing commands" }},
{"verbatim", { false, "do not reparse argument" }}
}}),
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext& shell_context)
{
context_wrap(parser, context, {}, [&](const ParametersParser& parser, Context& context) {
const bool no_hooks = context.hooks_disabled() or parser.get_switch("no-hooks");
ScopedSetBool disable_hoooks(context.hooks_disabled(), no_hooks);
if (parser.get_switch("verbatim"))
CommandManager::instance().execute_single_command(parser | gather<Vector>(), context, shell_context);
else
CommandManager::instance().execute(join(parser, ' ', false), 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 [<switches>] <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" } },
{ "shell-completion", { false, "use shell command completion for prompt" } },
{ "shell-script-completion", { true, "use shell command completion for prompt" } },
{ "shell-script-candidates", { true, "use shell 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{});
PromptCompleter 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<false>;
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);
};
else if (parser.get_switch("shell-completion"))
completer = shell_complete;
else if (auto shell_script = parser.get_switch("shell-script-completion"))
completer = PromptCompleterAdapter{ShellScriptCompleter{shell_script->str()}};
else if (auto shell_script = parser.get_switch("shell-script-candidates"))
completer = PromptCompleterAdapter{ShellCandidatesCompleter{shell_script->str()}};
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(), {}, context.faces()["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)
std::fill(text.begin(), text.end(), '\0');
});
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;
}
try
{
CommandManager::instance().execute(cmd, context, sc);
}
catch (Kakoune::runtime_error& error)
{
context.print_status({ fix_atom_text(error.what().str()),
context.faces()["Error"] });
context.hooks().run_hook(Hook::RuntimeError, error.what(),
context);
}
});
}
};
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)
{
if (parser[i].empty())
throw runtime_error(format("entry #{} is empty", i+1));
choices.push_back(markup ? parse_display_line(parser[i], context.faces())
: 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 and then execute <command>, "
"with key available in the `key` value",
ParameterDesc{
{ { "mode-name", { true, "set mode name to use" } } },
ParameterDesc::Flags::None, 1, 1
},
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(
parser.get_switch("mode-name").value_or("on-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>] <text>: display an info box containing <text>",
ParameterDesc{
{ { "anchor", { true, "set info anchoring <line>.<column>" } },
{ "style", { true, "set info style (above, below, menu, modal)" } },
{ "markup", { false, "parse markup" } },
{ "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;
const InfoStyle style = parser.get_switch("style").map(
[](StringView style) -> Optional<InfoStyle> {
if (style == "above") return InfoStyle::InlineAbove;
if (style == "below") return InfoStyle::InlineBelow;
if (style == "menu") return InfoStyle::MenuDoc;
if (style == "modal") return InfoStyle::Modal;
throw runtime_error(format("invalid style: '{}'", style));
}).value_or(parser.get_switch("anchor") ? InfoStyle::Inline : InfoStyle::Prompt);
context.client().info_hide(style == InfoStyle::Modal);
if (parser.positional_count() == 0)
return;
const BufferCoord pos = parser.get_switch("anchor").map(
[](StringView anchor) {
auto dot = find(anchor, '.');
if (dot == anchor.end())
throw runtime_error("expected <line>.<column> for anchor");
return BufferCoord{str_to_int({anchor.begin(), dot})-1,
str_to_int({dot+1, anchor.end()})-1};
}).value_or(BufferCoord{});
auto title = parser.get_switch("title").value_or(StringView{});
if (parser.get_switch("markup"))
context.client().info_show(parse_display_line(title, context.faces()),
parser[0] | split<StringView>('\n')
| transform([&](StringView s) {
return parse_display_line(s, context.faces());
})
| gather<DisplayLineList>(),
pos, style);
else
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 and do\n"
"not propagate that error. If <error_cmds> raises an error and another\n"
"<error_cmds> is provided, execute this one and so-on\n",
ParameterDesc{{}, ParameterDesc::Flags::None, 1},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext& shell_context)
{
if ((parser.positional_count() % 2) != 1)
throw wrong_argument_count();
for (size_t i = 1; i < parser.positional_count(); i += 2)
{
if (parser[i] != "catch")
throw runtime_error("usage: try <commands> [catch <on error commands>]...");
}
CommandManager& command_manager = CommandManager::instance();
Optional<ShellContext> shell_context_with_error;
for (size_t i = 0; i < parser.positional_count(); i += 2)
{
if (i == 0 or i < parser.positional_count() - 1)
{
try
{
command_manager.execute(parser[i], context,
shell_context_with_error.value_or(shell_context));
return;
}
catch (const runtime_error& error)
{
shell_context_with_error.emplace(shell_context);
shell_context_with_error->env_vars[StringView{"error"}] = error.what().str();
}
}
else
command_manager.execute(parser[i], context,
shell_context_with_error.value_or(shell_context));
}
}
};
static Completions complete_face(const Context& context, CompletionFlags flags,
const String& prefix, ByteCount cursor_pos)
{
return {0_byte, cursor_pos,
complete(prefix, cursor_pos, context.faces().flatten_faces() |
transform([](auto& entry) -> const String& { return entry.key; }))};
}
static String face_doc_helper(const Context& context, CommandParameters params)
{
if (params.size() < 2)
return {};
try
{
auto face = context.faces()[params[1]];
return format("{}:\n{}", params[1], indent(to_string(face)));
}
catch (runtime_error&)
{
return {};
}
}
const CommandDesc set_face_cmd = {
"set-face",
"face",
"set-face <scope> <name> <facespec>: set face <name> to refer to <facespec> in <scope>\n"
"\n"
"facespec format is <fg color>[,<bg color>][+<attributes>][@<base>]\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,\n"
" f: final foreground, g: final background,\n"
" a: final attributes, F: same as +fga\n"
"facespec can as well just be the name of another face.\n"
"if a base face is specified, colors and attributes are applied on top of it",
ParameterDesc{{}, ParameterDesc::Flags::None, 3, 3},
CommandFlags::None,
face_doc_helper,
make_completer(complete_scope, complete_face, complete_face),
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
get_scope(parser[0], context).faces().add_face(parser[1], parser[2], true);
for (auto& client : ClientManager::instance())
client->force_redraw();
}
};
const CommandDesc unset_face_cmd = {
"unset-face",
nullptr,
"unset-face <scope> <name>: remove <face> from <scope>",
double_params,
CommandFlags::None,
face_doc_helper,
make_completer(complete_scope, complete_face),
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
get_scope(parser[0], context).faces().remove_face(parser[1]);
}
};
const CommandDesc rename_client_cmd = {
"rename-client",
"nc",
"rename-client <name>: set current client name to <name>",
single_param,
CommandFlags::None,
CommandHelper{},
make_single_word_completer([](const Context& context){ return context.name(); }),
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
const String& name = parser[0];
if (not all_of(name, is_identifier))
throw runtime_error{format("invalid client name: '{}'", name)};
else if (ClientManager::instance().client_name_exists(name) and
context.name() != name)
throw runtime_error{format("client name '{}' is not unique", name)};
else
context.set_name(name);
}
};
const CommandDesc set_register_cmd = {
"set-register",
"reg",
"set-register <name> <values>...: set register <name> to <values>",
ParameterDesc{{}, ParameterDesc::Flags::SwitchesAsPositional, 1},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
RegisterManager::instance()[parser[0]].set(context, parser.positionals_from(1));
}
};
const CommandDesc select_cmd = {
"select",
nullptr,
"select <selection_desc>...: select given selections\n"
"\n"
"selection_desc format is <anchor_line>.<anchor_column>,<cursor_line>.<cursor_column>",
ParameterDesc{{
{"timestamp", {true, "specify buffer timestamp at which those selections are valid"}},
{"codepoint", {false, "columns are specified in codepoints, not bytes"}},
{"display-column", {false, "columns are specified in display columns, not bytes"}}
},
ParameterDesc::Flags::SwitchesOnlyAtStart, 1
},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
auto& buffer = context.buffer();
const size_t timestamp = parser.get_switch("timestamp").map(str_to_int_ifp).cast<size_t>().value_or(buffer.timestamp());
ColumnType column_type = ColumnType::Byte;
if (parser.get_switch("codepoint"))
column_type = ColumnType::Codepoint;
else if (parser.get_switch("display-column"))
column_type = ColumnType::DisplayColumn;
ColumnCount tabstop = context.options()["tabstop"].get<int>();
context.selections_write_only() = selection_list_from_strings(buffer, column_type, parser.positionals_from(0), timestamp, 0, tabstop);
}
};
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("unable to 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{},
make_single_word_completer([](const Context&){ return Server::instance().session(); }),
[](const ParametersParser& parser, Context&, const ShellContext&)
{
if (not Server::instance().rename_session(parser[0]))
throw runtime_error(format("unable to rename current session: '{}' may be already in use", parser[0]));
}
};
const CommandDesc fail_cmd = {
"fail",
nullptr,
"fail [<message>]: raise an error with the given message",
ParameterDesc{},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context&, const ShellContext&)
{
throw failure{fix_atom_text(join(parser, " "))};
}
};
const CommandDesc declare_user_mode_cmd = {
"declare-user-mode",
nullptr,
"declare-user-mode <name>: add a new user keymap mode",
single_param,
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
context.keymaps().add_user_mode(std::move(parser[0]));
}
};
// We need ownership of the mode_name in the lock case
void enter_user_mode(Context& context, String mode_name, KeymapMode mode, bool lock)
{
on_next_key_with_autoinfo(context, format("user.{}", mode_name), KeymapMode::None,
[mode_name, mode, lock](Key key, Context& context) mutable {
if (key == Key::Escape)
return;
if (not context.keymaps().is_mapped(key, mode))
return;
auto& mapping = context.keymaps().get_mapping(key, mode);
ScopedSetBool disable_keymaps(context.keymaps_disabled());
InputHandler::ScopedForceNormal force_normal{context.input_handler(), {}};
ScopedEdition edition(context);
for (auto& key : mapping.keys)
context.input_handler().handle_key(key);
if (lock)
enter_user_mode(context, std::move(mode_name), mode, true);
}, lock ? format("{} (lock)", mode_name) : mode_name,
build_autoinfo_for_mapping(context, mode, {}));
}
const CommandDesc enter_user_mode_cmd = {
"enter-user-mode",
nullptr,
"enter-user-mode [<switches>] <name>: enable <name> keymap mode for next key",
ParameterDesc{
{ { "lock", { false, "stay in mode until <esc> is pressed" } } },
ParameterDesc::Flags::SwitchesOnlyAtStart, 1, 1
},
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, context.keymaps().user_modes()) };
}
return {};
},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
auto lock = (bool)parser.get_switch("lock");
KeymapMode mode = parse_keymap_mode(parser[0], context.keymaps().user_modes());
enter_user_mode(context, std::move(parser[0]), mode, lock);
}
};
const CommandDesc provide_module_cmd = {
"provide-module",
nullptr,
"provide-module [<switches>] <name> <cmds>: declares a module <name> provided by <cmds>",
ParameterDesc{
{ { "override", { false, "allow overriding an existing module" } } },
ParameterDesc::Flags::None,
2, 2
},
CommandFlags::None,
CommandHelper{},
CommandCompleter{},
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
const String& module_name = parser[0];
auto& cm = CommandManager::instance();
if (not all_of(module_name, is_identifier))
throw runtime_error(format("invalid module name: '{}'", module_name));
if (cm.module_defined(module_name) and not parser.get_switch("override"))
throw runtime_error(format("module '{}' already defined", module_name));
cm.register_module(module_name, parser[1]);
}
};
const CommandDesc require_module_cmd = {
"require-module",
nullptr,
"require-module <name>: ensures that <name> module has been loaded",
single_param,
CommandFlags::None,
CommandHelper{},
make_completer(
[](const Context&, CompletionFlags, const String& prefix, ByteCount cursor_pos) {
return CommandManager::instance().complete_module_name(prefix.substr(0, cursor_pos));
}),
[](const ParametersParser& parser, Context& context, const ShellContext&)
{
CommandManager::instance().load_module(parser[0], context);
}
};
}
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(unset_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);
register_command(fail_cmd);
register_command(declare_user_mode_cmd);
register_command(enter_user_mode_cmd);
register_command(provide_module_cmd);
register_command(require_module_cmd);
}
}
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