kakoune/src/main.cc
Maxime Coste 006be63a32 Ensure local client is destroyed before we fork the server to background
The recent change that introduced defered client deletion made the local
client destruction happens too late, putting the terminal in a bad state
when we resumed the process as client only.
2016-10-06 23:35:32 +01:00

911 lines
31 KiB
C++

#include "assert.hh"
#include "buffer.hh"
#include "buffer_manager.hh"
#include "buffer_utils.hh"
#include "client_manager.hh"
#include "command_manager.hh"
#include "commands.hh"
#include "containers.hh"
#include "context.hh"
#include "event_manager.hh"
#include "face_registry.hh"
#include "file.hh"
#include "highlighters.hh"
#include "insert_completer.hh"
#include "shared_string.hh"
#include "ncurses_ui.hh"
#include "json_ui.hh"
#include "parameters_parser.hh"
#include "register_manager.hh"
#include "remote.hh"
#include "scope.hh"
#include "shell_manager.hh"
#include "string.hh"
#include "unit_tests.hh"
#include "window.hh"
#include <fcntl.h>
#include <locale>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <pwd.h>
using namespace Kakoune;
struct startup_error : Kakoune::runtime_error
{
using Kakoune::runtime_error::runtime_error;
};
String runtime_directory()
{
char relpath[PATH_MAX+1];
format_to(relpath, "{}../share/kak", split_path(get_kak_binary_path()).first);
struct stat st;
if (stat(relpath, &st) == 0 and S_ISDIR(st.st_mode))
return real_path(relpath);
return "/usr/share/kak";
}
void register_env_vars()
{
static const struct {
const char* name;
bool prefix;
String (*func)(StringView, const Context&);
} env_vars[] = { {
"bufname", false,
[](StringView name, const Context& context) -> String
{ return context.buffer().display_name(); }
}, {
"buffile", false,
[](StringView name, const Context& context) -> String
{ return context.buffer().name(); }
}, {
"buflist", false,
[](StringView name, const Context& context)
{ return join(BufferManager::instance() |
transform([](const std::unique_ptr<Buffer>& b)
{ return b->display_name(); }), ':'); }
}, {
"timestamp", false,
[](StringView name, const Context& context) -> String
{ return to_string(context.buffer().timestamp()); }
}, {
"selection", false,
[](StringView name, const Context& context)
{ const Selection& sel = context.selections().main();
return content(context.buffer(), sel); }
}, {
"selections", false,
[](StringView name, const Context& context)
{ return join(context.selections_content(), ':'); }
}, {
"runtime", false,
[](StringView name, const Context& context)
{ return runtime_directory(); }
}, {
"opt_", true,
[](StringView name, const Context& context)
{ return context.options()[name.substr(4_byte)].get_as_string(); }
}, {
"reg_", true,
[](StringView name, const Context& context)
{ return context.main_sel_register_value(name.substr(4_byte)).str(); }
}, {
"client_env_", true,
[](StringView name, const Context& context)
{ return context.client().get_env_var(name.substr(11_byte)).str(); }
}, {
"session", false,
[](StringView name, const Context& context) -> String
{ return Server::instance().session(); }
}, {
"client", false,
[](StringView name, const Context& context) -> String
{ return context.name(); }
}, {
"cursor_line", false,
[](StringView name, const Context& context) -> String
{ return to_string(context.selections().main().cursor().line + 1); }
}, {
"cursor_column", false,
[](StringView name, const Context& context) -> String
{ return to_string(context.selections().main().cursor().column + 1); }
}, {
"cursor_char_column", false,
[](StringView name, const Context& context) -> String
{ auto coord = context.selections().main().cursor();
return to_string(context.buffer()[coord.line].char_count_to(coord.column) + 1); }
}, {
"cursor_byte_offset", false,
[](StringView name, const Context& context) -> String
{ auto cursor = context.selections().main().cursor();
return to_string(context.buffer().distance({0,0}, cursor)); }
}, {
"selection_desc", false,
[](StringView name, const Context& context)
{ return selection_to_string(context.selections().main()); }
}, {
"selections_desc", false,
[](StringView name, const Context& context)
{ return selection_list_to_string(context.selections()); }
}, {
"window_width", false,
[](StringView name, const Context& context) -> String
{ return to_string(context.window().dimensions().column); }
}, {
"window_height", false,
[](StringView name, const Context& context) -> String
{ return to_string(context.window().dimensions().line); }
} };
ShellManager& shell_manager = ShellManager::instance();
for (auto& env_var : env_vars)
shell_manager.register_env_var(env_var.name, env_var.prefix, env_var.func);
}
void register_registers()
{
RegisterManager& register_manager = RegisterManager::instance();
for (auto c : "abcdefghijklmnopqrstuvwxyz/\"|^@")
register_manager.add_register(c, make_unique<StaticRegister>());
using StringList = Vector<String, MemoryDomain::Registers>;
register_manager.add_register('%', make_dyn_reg(
[](const Context& context)
{ return StringList{{context.buffer().display_name()}}; }));
register_manager.add_register('.', make_dyn_reg(
[](const Context& context) {
auto content = context.selections_content();
return StringList{content.begin(), content.end()};
}));
register_manager.add_register('#', make_dyn_reg(
[](const Context& context) {
StringList res;
for (size_t i = 1; i < context.selections().size()+1; ++i)
res.push_back(to_string((int)i));
return res;
}));
for (size_t i = 0; i < 10; ++i)
{
register_manager.add_register('0'+i, make_dyn_reg(
[i](const Context& context) {
StringList result;
for (auto& sel : context.selections())
result.emplace_back(i < sel.captures().size() ? sel.captures()[i] : "");
return result;
}));
}
register_manager.add_register('_', make_unique<NullRegister>());
}
static void check_tabstop(const int& val)
{
if (val < 1) throw runtime_error{"tabstop should be strictly positive"};
}
static void check_indentwidth(const int& val)
{
if (val < 0) throw runtime_error{"indentwidth should be positive or zero"};
}
static void check_scrolloff(const DisplayCoord& so)
{
if (so.line < 0 or so.column < 0)
throw runtime_error{"scroll offset must be positive or zero"};
}
static void check_timeout(const int& timeout)
{
if (timeout < 50)
throw runtime_error{"the minimum acceptable timeout is 50 milliseconds"};
}
void register_options()
{
OptionsRegistry& reg = GlobalScope::instance().option_registry();
reg.declare_option<int, check_tabstop>("tabstop", "size of a tab character", 8);
reg.declare_option<int, check_indentwidth>("indentwidth", "indentation width", 4);
reg.declare_option<DisplayCoord, check_scrolloff>(
"scrolloff", "number of lines and columns to keep visible main cursor when scrolling",
{0,0});
reg.declare_option("eolformat", "end of line format", EolFormat::Lf);
reg.declare_option("BOM", "byte order mark to use when writing buffer",
ByteOrderMark::None);
reg.declare_option("incsearch",
"incrementaly apply search/select/split regex",
true);
reg.declare_option("autoinfo",
"automatically display contextual help",
AutoInfo::Command | AutoInfo::OnKey);
reg.declare_option("autoshowcompl",
"automatically display possible completions for prompts",
true);
reg.declare_option("aligntab",
"use tab characters when possible for alignement",
false);
reg.declare_option("ignored_files",
"patterns to ignore when completing filenames",
Regex{R"(^(\..*|.*\.(o|so|a))$)"});
reg.declare_option("disabled_hooks",
"patterns to disable hooks whose group is matched",
Regex{});
reg.declare_option("filetype", "buffer filetype", ""_str);
reg.declare_option("path", "path to consider when trying to find a file",
Vector<String, MemoryDomain::Options>({ "./", "/usr/include" }));
reg.declare_option("completers", "insert mode completers to execute.",
InsertCompleterDescList({
InsertCompleterDesc{ InsertCompleterDesc::Filename },
InsertCompleterDesc{ InsertCompleterDesc::Word, "all"_str }
}), OptionFlags::None);
reg.declare_option("static_words", "list of words to always consider for insert word completion",
Vector<String, MemoryDomain::Options>{});
reg.declare_option("autoreload",
"autoreload buffer when a filesystem modification is detected",
Autoreload::Ask);
reg.declare_option<int, check_timeout>(
"idle_timeout", "timeout, in milliseconds, before idle hooks are triggered", 50);
reg.declare_option<int, check_timeout>(
"fs_check_timeout", "timeout, in milliseconds, between file system buffer modification checks",
500);
reg.declare_option("ui_options",
"colon separated list of <key>=<value> options that are "
"passed to and interpreted by the user interface\n"
"\n"
"The ncurses ui supports the following options:\n"
"<key>: <value>:\n"
" ncurses_assistant clippy|cat|none|off\n"
" ncurses_status_on_top bool\n"
" ncurses_set_title bool\n"
" ncurses_enable_mouse bool\n"
" ncurses_wheel_up_button int\n"
" ncurses_wheel_down_button int\n"
" ncurses_buffer_padding_str str\n"
" ncurses_buffer_padding_type fill|single|off\n",
UserInterface::Options{});
reg.declare_option("modelinefmt", "format string used to generate the modeline",
"%val{bufname} %val{cursor_line}:%val{cursor_char_column} "_str);
reg.declare_option("debug", "various debug flags", DebugFlags::None);
reg.declare_option("readonly", "prevent buffers from being modified", false);
reg.declare_option("completion_extra_word_char",
"Additional characters to be considered as words for insert completion",
""_str);
}
struct convert_to_client_mode
{
String session;
String buffer_name;
String selections;
};
enum class UIType
{
NCurses,
Json,
Dummy,
};
static Client* local_client = nullptr;
static UserInterface* local_ui = nullptr;
static bool convert_to_client_pending = false;
pid_t fork_server_to_background()
{
if (pid_t pid = fork())
return pid;
if (fork()) // double fork to orphan the server
exit(0);
write_stderr(format("Kakoune forked server to background ({}), for session '{}'\n",
getpid(), Server::instance().session()));
return 0;
}
std::unique_ptr<UserInterface> make_ui(UIType ui_type)
{
struct DummyUI : UserInterface
{
DummyUI() { set_signal_handler(SIGINT, SIG_DFL); }
void menu_show(ConstArrayView<DisplayLine>, DisplayCoord,
Face, Face, MenuStyle) override {}
void menu_select(int) override {}
void menu_hide() override {}
void info_show(StringView, StringView, DisplayCoord, Face, InfoStyle) override {}
void info_hide() override {}
void draw(const DisplayBuffer&, const Face&, const Face&) override {}
void draw_status(const DisplayLine&, const DisplayLine&, const Face&) override {}
DisplayCoord dimensions() override { return {24,80}; }
bool is_key_available() override { return false; }
Key get_key() override { return Key::Invalid; }
void refresh(bool) override {}
void set_input_callback(InputCallback) override {}
void set_ui_options(const Options&) override {}
};
switch (ui_type)
{
case UIType::NCurses: return make_unique<NCursesUI>();
case UIType::Json: return make_unique<JsonUI>();
case UIType::Dummy: return make_unique<DummyUI>();
}
throw logic_error{};
}
std::unique_ptr<UserInterface> create_local_ui(UIType ui_type)
{
if (ui_type != UIType::NCurses)
return make_ui(ui_type);
struct LocalUI : NCursesUI
{
LocalUI()
{
kak_assert(not local_ui);
local_ui = this;
m_old_sighup = set_signal_handler(SIGHUP, [](int) {
ClientManager::instance().remove_client(*local_client, false);
});
m_old_sigtstp = set_signal_handler(SIGTSTP, [](int) {
if (ClientManager::instance().count() == 1 and
*ClientManager::instance().begin() == local_client)
{
// Suspend normally if we are the only client
auto current = set_signal_handler(SIGTSTP, static_cast<LocalUI*>(local_ui)->m_old_sigtstp);
sigset_t unblock_sigtstp, old_mask;
sigemptyset(&unblock_sigtstp);
sigaddset(&unblock_sigtstp, SIGTSTP);
sigprocmask(SIG_UNBLOCK, &unblock_sigtstp, &old_mask);
raise(SIGTSTP);
sigprocmask(SIG_SETMASK, &old_mask, nullptr);
set_signal_handler(SIGTSTP, current);
}
else
convert_to_client_pending = true;
});
}
~LocalUI()
{
set_signal_handler(SIGHUP, m_old_sighup);
set_signal_handler(SIGTSTP, m_old_sigtstp);
local_client = nullptr;
local_ui = nullptr;
if (not convert_to_client_pending and
not ClientManager::instance().empty())
{
if (fork_server_to_background())
{
this->NCursesUI::~NCursesUI();
exit(0);
}
}
}
private:
using SigHandler = void (*)(int);
SigHandler m_old_sighup;
SigHandler m_old_sigtstp;
};
if (not isatty(1))
throw startup_error("stdout is not a tty");
if (not isatty(0))
{
// move stdin to another fd, and restore tty as stdin
int fd = dup(0);
int tty = open("/dev/tty", O_RDONLY);
dup2(tty, 0);
close(tty);
create_fifo_buffer("*stdin*", fd);
}
return make_unique<LocalUI>();
}
void signal_handler(int signal)
{
NCursesUI::abort();
const char* text = nullptr;
switch (signal)
{
case SIGSEGV: text = "SIGSEGV"; break;
case SIGFPE: text = "SIGFPE"; break;
case SIGQUIT: text = "SIGQUIT"; break;
case SIGTERM: text = "SIGTERM"; break;
case SIGPIPE: text = "SIGPIPE"; break;
}
if (signal != SIGTERM)
{
auto msg = format("Received {}, exiting.\nPid: {}\nCallstack:\n{}",
text, getpid(), Backtrace{}.desc());
write_stderr(msg);
notify_fatal_error(msg);
}
if (Server::has_instance())
Server::instance().close_session();
if (BufferManager::has_instance())
BufferManager::instance().backup_modified_buffers();
if (signal == SIGTERM)
exit(-1);
else
abort();
}
int run_client(StringView session, StringView init_command, UIType ui_type)
{
try
{
EventManager event_manager;
RemoteClient client{session, make_ui(ui_type), get_env_vars(), init_command};
while (true)
event_manager.handle_next_events(EventMode::Normal);
}
catch (remote_error&)
{
write_stderr("disconnected from server\n");
return -1;
}
catch (connection_failed& e)
{
write_stderr(format("{}\n", e.what()));
return -1;
}
return 0;
}
int run_server(StringView session, StringView init_command,
bool ignore_kakrc, bool daemon, bool readonly, UIType ui_type,
ConstArrayView<StringView> files, BufferCoord target_coord)
{
static bool terminate = false;
if (daemon)
{
if (session.empty())
{
write_stderr("-d needs a session name to be specified with -s\n");
return -1;
}
if (pid_t child = fork())
{
write_stderr(format("Kakoune forked to background, for session '{}'\n"
"send SIGTERM to process {} for closing the session\n",
session, child));
exit(0);
}
set_signal_handler(SIGTERM, [](int) { terminate = true; });
}
StringRegistry string_registry;
EventManager event_manager;
GlobalScope global_scope;
ShellManager shell_manager;
CommandManager command_manager;
RegisterManager register_manager;
HighlighterRegistry highlighter_registry;
DefinedHighlighters defined_highlighters;
FaceRegistry face_registry;
ClientManager client_manager;
BufferManager buffer_manager;
register_options();
register_env_vars();
register_registers();
register_commands();
register_highlighters();
UnitTest::run_all_tests();
write_to_debug_buffer("*** This is the debug buffer, where debug info will be written ***");
GlobalScope::instance().options().get_local_option("readonly").set(readonly);
Server server(session.empty() ? to_string(getpid()) : session.str());
bool startup_error = false;
if (not ignore_kakrc) try
{
Context initialisation_context{Context::EmptyContextFlag{}};
command_manager.execute(format("source {}/kakrc", runtime_directory()),
initialisation_context);
}
catch (Kakoune::runtime_error& error)
{
startup_error = true;
write_to_debug_buffer(format("error while parsing kakrc:\n {}", error.what()));
}
{
Context empty_context{Context::EmptyContextFlag{}};
global_scope.hooks().run_hook("KakBegin", "", empty_context);
}
if (not files.empty()) try
{
// create buffers in reverse order so that the first given buffer
// is the most recently created one.
for (auto& file : files | reverse())
{
try
{
Buffer *buffer = open_or_create_file_buffer(file);
if (readonly)
buffer->flags() |= Buffer::Flags::ReadOnly;
}
catch (Kakoune::runtime_error& error)
{
startup_error = true;
write_to_debug_buffer(format("error while opening file '{}':\n {}",
file, error.what()));
}
}
}
catch (Kakoune::runtime_error& error)
{
write_to_debug_buffer(format("error while opening command line files: {}", error.what()));
}
else
buffer_manager.create_buffer("*scratch*", Buffer::Flags::None);
try
{
if (not daemon)
{
local_client = client_manager.create_client(
create_local_ui(ui_type), get_env_vars(), init_command);
if (local_client)
{
auto& selections = local_client->context().selections_write_only();
auto& buffer = selections.buffer();
selections = SelectionList(buffer, buffer.clamp(target_coord));
local_client->context().window().center_line(target_coord.line);
if (startup_error)
local_client->print_status({
"error during startup, see *debug* buffer for details",
get_face("Error")
});
}
}
while (not terminate and (not client_manager.empty() or daemon))
{
client_manager.redraw_clients();
event_manager.handle_next_events(EventMode::Normal);
client_manager.handle_pending_inputs();
client_manager.clear_client_trash();
client_manager.clear_window_trash();
buffer_manager.clear_buffer_trash();
string_registry.purge_unused();
if (convert_to_client_pending)
{
String buffer_name = local_client->context().buffer().name();
String selections = selection_list_to_string(local_client->context().selections());
ClientManager::instance().remove_client(*local_client, true);
client_manager.clear_client_trash();
convert_to_client_pending = false;
if (fork_server_to_background())
{
String session = server.session();
server.close_session(false);
throw convert_to_client_mode{ std::move(session), std::move(buffer_name), std::move(selections) };
}
}
}
}
catch (const kill_session&) {}
{
Context empty_context{Context::EmptyContextFlag{}};
global_scope.hooks().run_hook("KakEnd", "", empty_context);
}
return 0;
}
int run_filter(StringView keystr, StringView commands, ConstArrayView<StringView> files, bool quiet)
{
StringRegistry string_registry;
GlobalScope global_scope;
EventManager event_manager;
ShellManager shell_manager;
CommandManager command_manager;
RegisterManager register_manager;
ClientManager client_manager;
BufferManager buffer_manager;
register_options();
register_env_vars();
register_registers();
register_commands();
try
{
auto keys = parse_keys(keystr);
auto apply_to_buffer = [&](Buffer& buffer)
{
try
{
InputHandler input_handler{
{ buffer, Selection{{0,0}, buffer.back_coord()} },
Context::Flags::Transient
};
if (not commands.empty())
command_manager.execute(commands, input_handler.context(),
ShellContext{});
for (auto& key : keys)
input_handler.handle_key(key);
}
catch (Kakoune::runtime_error& err)
{
if (not quiet)
write_stderr(format("error while applying keys to buffer '{}': {}\n",
buffer.display_name(), err.what()));
}
};
for (auto& file : files)
{
Buffer* buffer = open_file_buffer(file);
write_buffer_to_file(*buffer, file + ".kak-bak");
apply_to_buffer(*buffer);
write_buffer_to_file(*buffer, file);
buffer_manager.delete_buffer(*buffer);
}
if (not isatty(0))
{
Buffer& buffer = *buffer_manager.create_buffer(
"*stdin*", Buffer::Flags::None, read_fd(0), InvalidTime);
apply_to_buffer(buffer);
write_buffer_to_fd(buffer, 1);
buffer_manager.delete_buffer(buffer);
}
}
catch (Kakoune::runtime_error& err)
{
write_stderr(format("error: {}\n", err.what()));
}
buffer_manager.clear_buffer_trash();
return 0;
}
int run_pipe(StringView session)
{
char buf[512];
String command;
while (ssize_t count = read(0, buf, 512))
{
if (count < 0)
{
write_stderr("error while reading stdin\n");
return -1;
}
command += StringView{buf, buf + count};
}
try
{
send_command(session, command);
}
catch (connection_failed& e)
{
write_stderr(format("{}\n", e.what()));
return -1;
}
return 0;
}
UIType parse_ui_type(StringView ui_name)
{
if (ui_name == "ncurses") return UIType::NCurses;
if (ui_name == "json") return UIType::Json;
if (ui_name == "dummy") return UIType::Dummy;
throw parameter_error(format("error: unknown ui type: '{}'", ui_name));
}
int main(int argc, char* argv[])
{
setlocale(LC_ALL, "");
set_signal_handler(SIGSEGV, signal_handler);
set_signal_handler(SIGFPE, signal_handler);
set_signal_handler(SIGQUIT, signal_handler);
set_signal_handler(SIGTERM, signal_handler);
set_signal_handler(SIGPIPE, SIG_IGN);
set_signal_handler(SIGINT, [](int){});
set_signal_handler(SIGCHLD, [](int){});
Vector<String> params;
for (size_t i = 1; i < argc; ++i)
params.push_back(argv[i]);
const ParameterDesc param_desc{
SwitchMap{ { "c", { true, "connect to given session" } },
{ "e", { true, "execute argument on initialisation" } },
{ "n", { false, "do not source kakrc files on startup" } },
{ "s", { true, "set session name" } },
{ "d", { false, "run as a headless session (requires -s)" } },
{ "p", { true, "just send stdin as commands to the given session" } },
{ "f", { true, "act as a filter, executing given keys on given files" } },
{ "q", { false, "in filter mode, be quiet about errors applying keys" } },
{ "ui", { true, "set the type of user interface to use (ncurses, dummy, or json)" } },
{ "l", { false, "list existing sessions" } },
{ "clear", { false, "clear dead sessions" } },
{ "ro", { false, "readonly mode" } } }
};
try
{
std::sort(keymap.begin(), keymap.end(),
[](const NormalCmdDesc& lhs, const NormalCmdDesc& rhs)
{ return lhs.key < rhs.key; });
ParametersParser parser(params, param_desc);
const bool list_sessions = (bool)parser.get_switch("l");
const bool clear_sessions = (bool)parser.get_switch("clear");
if (list_sessions or clear_sessions)
{
StringView username = getpwuid(geteuid())->pw_name;
for (auto& session : list_files(format("/tmp/kakoune/{}/", username)))
{
const bool valid = check_session(session);
if (list_sessions)
write_stdout(format("{}{}\n", session, valid ? "" : " (dead)"));
if (not valid and clear_sessions)
{
char socket_file[128];
format_to(socket_file, "/tmp/kakoune/{}/{}", username, session);
unlink(socket_file);
}
}
return 0;
}
if (auto session = parser.get_switch("p"))
{
for (auto opt : { "c", "n", "s", "d", "e", "ro" })
{
if (parser.get_switch(opt))
{
write_stderr(format("error: -{} is incompatible with -p\n", opt));
return -1;
}
}
return run_pipe(*session);
}
auto init_command = parser.get_switch("e").value_or(StringView{});
const UIType ui_type = parse_ui_type(parser.get_switch("ui").value_or("ncurses"));
if (auto keys = parser.get_switch("f"))
{
if (parser.get_switch("ro"))
{
write_stderr("error: -ro is incompatible with -f\n");
return -1;
}
Vector<StringView> files;
for (size_t i = 0; i < parser.positional_count(); ++i)
files.emplace_back(parser[i]);
return run_filter(*keys, init_command, files,
(bool)parser.get_switch("q"));
}
if (auto server_session = parser.get_switch("c"))
{
for (auto opt : { "n", "s", "d", "ro" })
{
if (parser.get_switch(opt))
{
write_stderr(format("error: -{} is incompatible with -c\n", opt));
return -1;
}
}
String new_files;
for (auto name : parser)
new_files += format("edit '{}';", escape(real_path(name), "'", '\\'));
return run_client(*server_session, new_files + init_command, ui_type);
}
else
{
BufferCoord target_coord;
Vector<StringView> files;
for (auto& name : parser)
{
if (not name.empty() and name[0_byte] == '+')
{
auto colon = find(name, ':');
if (auto line = str_to_int_ifp({name.begin()+1, colon}))
{
target_coord.line = *line - 1;
if (colon != name.end())
target_coord.column = str_to_int_ifp({colon+1, name.end()}).value_or(1) - 1;
continue;
}
}
files.emplace_back(name);
}
StringView session = parser.get_switch("s").value_or(StringView{});
try
{
return run_server(session, init_command,
(bool)parser.get_switch("n"),
(bool)parser.get_switch("d"),
(bool)parser.get_switch("ro"),
ui_type, files, target_coord);
}
catch (convert_to_client_mode& convert)
{
raise(SIGTSTP);
return run_client(convert.session,
format("try %^buffer '{}'; select '{}'^; echo converted to client only mode",
escape(convert.buffer_name, "'^", '\\'), convert.selections), ui_type);
}
}
}
catch (Kakoune::parameter_error& error)
{
write_stderr(format("Error while parsing parameters: {}\n"
"Valid switches:\n"
"{}", error.what(),
generate_switches_doc(param_desc.switches)));
return -1;
}
catch (startup_error& error)
{
write_stderr(format("Could not start kakoune: {}\n", error.what()));
return -1;
}
catch (Kakoune::exception& error)
{
write_stderr(format("uncaught exception ({}):\n{}", typeid(error).name(), error.what()));
return -1;
}
catch (std::exception& error)
{
write_stderr(format("uncaught exception ({}):\n{}", typeid(error).name(), error.what()));
return -1;
}
catch (...)
{
write_stderr("uncaught exception");
return -1;
}
return 0;
}