kakoune/src/main.cc

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#include "window.hh"
#include "buffer.hh"
#include "shell_manager.hh"
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#include "commands.hh"
#include "command_manager.hh"
#include "buffer_manager.hh"
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#include "register_manager.hh"
#include "selectors.hh"
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#include "assert.hh"
#include "debug.hh"
#include "highlighters.hh"
#include "filters.hh"
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#include "hook_manager.hh"
#include "option_manager.hh"
#include "event_manager.hh"
#include "context.hh"
#include "ncurses.hh"
#include "string.hh"
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#include "file.hh"
#include "color_registry.hh"
#include "remote.hh"
#include "client_manager.hh"
#include "parameters_parser.hh"
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#if defined(__APPLE__)
#include <mach-o/dyld.h>
#endif
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#include <unordered_map>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/wait.h>
#include <unistd.h>
#include <fcntl.h>
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#include <locale>
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using namespace Kakoune;
using namespace std::placeholders;
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namespace Kakoune
{
template<InsertMode mode>
void do_insert(Context& context)
{
context.input_handler().insert(mode);
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}
void do_repeat_insert(Context& context)
{
context.input_handler().repeat_last_insert();
}
template<SelectMode mode>
void do_go(Context& context)
{
int count = context.numeric_param();
if (count != 0)
{
BufferIterator target =
context.editor().buffer().iterator_at_line_begin(count-1);
context.push_jump();
context.editor().select(target);
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if (context.has_window())
context.window().center_selection();
}
else
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context.input_handler().on_next_key([](const Key& key, Context& context) {
if (key.modifiers != Key::Modifiers::None)
return;
Editor& editor = context.editor();
switch (tolower(key.key))
{
case 'g':
case 't':
context.push_jump();
editor.select(editor.buffer().begin(), mode);
break;
case 'l':
editor.select(select_to_eol, mode);
break;
case 'h':
editor.select(select_to_eol_reverse, mode);
break;
case 'b':
{
context.push_jump();
const Buffer& buf = editor.buffer();
editor.select(buf.iterator_at_line_begin(buf.line_count() - 1), mode);
break;
}
}
});
}
void do_replace_with_char(Context& context)
{
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context.input_handler().on_next_key([](const Key& key, Context& context) {
Editor& editor = context.editor();
SelectionList sels = editor.selections();
auto restore_sels = on_scope_end([&]{ editor.select(std::move(sels)); });
editor.multi_select(std::bind(select_all_matches, _1, "."));
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editor.insert(codepoint_to_str(key.key), InsertMode::Replace);
});
}
void do_command(Context& context)
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{
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context.input_handler().prompt(
":", std::bind(&CommandManager::complete, &CommandManager::instance(), _1, _2, _3),
[](const String& cmdline, PromptEvent event, Context& context) {
if (event == PromptEvent::Validate)
CommandManager::instance().execute(cmdline, context);
});
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}
void do_pipe(Context& context)
{
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context.input_handler().prompt("|", complete_nothing,
[](const String& cmdline, PromptEvent event, Context& context)
{
if (event != PromptEvent::Validate)
return;
Editor& editor = context.editor();
std::vector<String> strings;
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for (auto& sel : context.editor().selections())
strings.push_back(ShellManager::instance().pipe({sel.begin(), sel.end()},
cmdline, context, {}, {}));
editor.insert(strings, InsertMode::Replace);
});
}
template<SelectMode mode, bool forward>
void do_search(Context& context)
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{
SelectionList selections = context.editor().selections();
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context.input_handler().prompt("/", complete_nothing,
[selections](const String& str, PromptEvent event, Context& context) {
try
{
context.editor().select(selections);
if (event == PromptEvent::Abort)
return;
String ex = str;
if (event == PromptEvent::Validate)
{
if (ex.empty())
ex = RegisterManager::instance()['/'].values(context)[0];
else
RegisterManager::instance()['/'] = ex;
context.push_jump();
}
else if (ex.empty() or not context.options()["incsearch"].as_int())
return;
context.editor().select(std::bind(select_next_match<forward>, _1, ex), mode);
}
catch (runtime_error&)
{
context.editor().select(selections);
// only validation should propagate errors,
// incremental search should not.
if (event == PromptEvent::Validate)
throw;
}
});
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}
template<SelectMode mode, bool forward>
void do_search_next(Context& context)
{
const String& ex = RegisterManager::instance()['/'].values(context)[0];
if (not ex.empty())
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{
if (mode == SelectMode::Replace)
context.push_jump();
int count = context.numeric_param();
do {
context.editor().select(std::bind(select_next_match<forward>, _1, ex), mode);
} while (--count > 0);
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}
else
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context.print_status("no search pattern");
}
void use_selection_as_search_pattern(Context& context)
{
std::vector<String> patterns;
auto& sels = context.editor().selections();
for (auto& sel : sels)
{
auto begin = sel.begin();
auto end = sel.end();
auto content = "\\Q" + context.buffer().string(begin, end) + "\\E";
if (begin.is_begin() or (is_word(utf8::codepoint(begin)) and not is_word(utf8::codepoint(utf8::previous(begin)))))
content = "\\b" + content;
if (end.is_end() or (is_word(utf8::codepoint(utf8::previous(end))) and not is_word(utf8::codepoint(end))))
content = content + "\\b";
patterns.push_back(std::move(content));
}
RegisterManager::instance()['/'] = patterns;
}
void do_yank(Context& context)
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{
RegisterManager::instance()['"'] = context.editor().selections_content();
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}
void do_erase(Context& context)
{
RegisterManager::instance()['"'] = context.editor().selections_content();
context.editor().erase();
}
void do_change(Context& context)
{
RegisterManager::instance()['"'] = context.editor().selections_content();
do_insert<InsertMode::Replace>(context);
}
static InsertMode adapt_for_linewise(InsertMode mode)
{
if (mode == InsertMode::Append)
return InsertMode::InsertAtNextLineBegin;
if (mode == InsertMode::Insert)
return InsertMode::InsertAtLineBegin;
if (mode == InsertMode::Replace)
return InsertMode::Replace;
assert(false);
return InsertMode::Insert;
}
template<InsertMode insert_mode>
void do_paste(Context& context)
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{
Editor& editor = context.editor();
auto strings = RegisterManager::instance()['"'].values(context);
InsertMode mode = insert_mode;
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for (auto& str : strings)
{
if (not str.empty() and str.back() == '\n')
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{
mode = adapt_for_linewise(mode);
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break;
}
}
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editor.insert(strings, mode);
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}
void do_select_regex(Context& context)
{
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context.input_handler().prompt("select: ", complete_nothing,
[](const String& str, PromptEvent event, Context& context) {
if (event == PromptEvent::Validate)
{
String ex = str;
if (ex.empty())
ex = RegisterManager::instance()['/'].values(context)[0];
else
RegisterManager::instance()['/'] = ex;
if (not ex.empty())
context.editor().multi_select(std::bind(select_all_matches, _1, ex));
}
});
}
void do_split_regex(Context& context)
{
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context.input_handler().prompt("split: ", complete_nothing,
[](const String& str, PromptEvent event, Context& context) {
if (event == PromptEvent::Validate)
{
String ex = str;
if (ex.empty())
ex = RegisterManager::instance()['/'].values(context)[0];
else
RegisterManager::instance()['/'] = ex;
if (not ex.empty())
context.editor().multi_select(std::bind(split_selection, _1, ex));
}
});
}
void do_split_lines(Context& context)
{
context.editor().multi_select(std::bind(split_selection, _1, "^"));
}
void do_join(Context& context)
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{
Editor& editor = context.editor();
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DynamicSelectionList sels{editor.buffer(), editor.selections()};
auto restore_sels = on_scope_end([&]{ editor.select((SelectionList)std::move(sels)); });
editor.select(select_whole_lines);
editor.select(select_to_eol, SelectMode::Extend);
editor.multi_select([](const Selection& sel)
{
SelectionList res = select_all_matches(sel, "\n\\h*");
// remove last end of line if selected
assert(std::is_sorted(res.begin(), res.end(),
[](const Selection& lhs, const Selection& rhs)
{ return lhs.begin() < rhs.begin(); }));
if (not res.empty() and res.back().end() == sel.buffer().end())
res.pop_back();
return res;
});
editor.insert(" ", InsertMode::Replace);
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}
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void do_indent(Context& context)
{
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size_t width = context.options()["indentwidth"].as_int();
String indent(' ', width);
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Editor& editor = context.editor();
DynamicSelectionList sels{editor.buffer(), editor.selections()};
auto restore_sels = on_scope_end([&]{ editor.select((SelectionList)std::move(sels)); });
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editor.select(select_whole_lines);
editor.multi_select(std::bind(select_all_matches, _1, "^[^\n]"));
editor.insert(indent, InsertMode::Insert);
}
void do_deindent(Context& context)
{
int width = context.options()["indentwidth"].as_int();
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Editor& editor = context.editor();
DynamicSelectionList sels{editor.buffer(), editor.selections()};
auto restore_sels = on_scope_end([&]{ editor.select((SelectionList)std::move(sels)); });
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editor.select(select_whole_lines);
editor.multi_select(std::bind(select_all_matches, _1,
"^\\h{1," + int_to_str(width) + "}"));
editor.erase();
}
template<SurroundFlags flags>
void do_select_object(Context& context)
{
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context.input_handler().on_next_key(
[](const Key& key, Context& context) {
typedef std::function<Selection (const Selection&)> Selector;
static const std::unordered_map<Key, Selector> key_to_selector =
{
{ { Key::Modifiers::None, '(' }, std::bind(select_surrounding, _1, CodepointPair{ '(', ')' }, flags) },
{ { Key::Modifiers::None, ')' }, std::bind(select_surrounding, _1, CodepointPair{ '(', ')' }, flags) },
{ { Key::Modifiers::None, 'b' }, std::bind(select_surrounding, _1, CodepointPair{ '(', ')' }, flags) },
{ { Key::Modifiers::None, '{' }, std::bind(select_surrounding, _1, CodepointPair{ '{', '}' }, flags) },
{ { Key::Modifiers::None, '}' }, std::bind(select_surrounding, _1, CodepointPair{ '{', '}' }, flags) },
{ { Key::Modifiers::None, 'B' }, std::bind(select_surrounding, _1, CodepointPair{ '{', '}' }, flags) },
{ { Key::Modifiers::None, '[' }, std::bind(select_surrounding, _1, CodepointPair{ '[', ']' }, flags) },
{ { Key::Modifiers::None, ']' }, std::bind(select_surrounding, _1, CodepointPair{ '[', ']' }, flags) },
{ { Key::Modifiers::None, '<' }, std::bind(select_surrounding, _1, CodepointPair{ '<', '>' }, flags) },
{ { Key::Modifiers::None, '>' }, std::bind(select_surrounding, _1, CodepointPair{ '<', '>' }, flags) },
{ { Key::Modifiers::None, 'w' }, std::bind(select_whole_word<false>, _1, flags & SurroundFlags::Inner) },
{ { Key::Modifiers::None, 'W' }, std::bind(select_whole_word<true>, _1, flags & SurroundFlags::Inner) },
};
auto it = key_to_selector.find(key);
if (it != key_to_selector.end())
context.editor().select(it->second);
});
}
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template<Key::NamedKey key>
void do_scroll(Context& context)
{
static_assert(key == Key::PageUp or key == Key::PageDown,
"do_scrool only implements PageUp and PageDown");
Window& window = context.window();
Buffer& buffer = context.buffer();
DisplayCoord position = window.position();
LineCount cursor_line = 0;
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if (key == Key::PageUp)
{
position.line -= (window.dimensions().line - 2);
cursor_line = position.line;
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}
else if (key == Key::PageDown)
{
position.line += (window.dimensions().line - 2);
cursor_line = position.line + window.dimensions().line - 1;
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}
auto cursor_pos = utf8::advance(buffer.iterator_at_line_begin(position.line),
buffer.iterator_at_line_end(position.line),
position.column);
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window.select(cursor_pos);
window.set_position(position);
}
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void do_rotate_selections(Context& context)
{
int count = context.numeric_param();
if (count == 0)
count = 1;
SelectionList sels = context.editor().selections();
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count %= sels.size();
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std::rotate(sels.begin(), sels.begin() + count, sels.end());
context.editor().select(std::move(sels));
};
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enum class SelectFlags
{
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None = 0,
Reverse = 1,
Inclusive = 2,
Extend = 4
};
constexpr SelectFlags operator|(SelectFlags lhs, SelectFlags rhs)
{
return (SelectFlags)((int) lhs | (int) rhs);
}
constexpr bool operator&(SelectFlags lhs, SelectFlags rhs)
{
return ((int) lhs & (int) rhs) != 0;
}
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template<SelectFlags flags>
void select_to_next_char(Context& context)
{
int param = context.numeric_param();
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context.input_handler().on_next_key([param](const Key& key, Context& context) {
context.editor().select(
std::bind(flags & SelectFlags::Reverse ? select_to_reverse : select_to,
_1, key.key, param, flags & SelectFlags::Inclusive),
flags & SelectFlags::Extend ? SelectMode::Extend : SelectMode::Replace);
});
}
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void start_or_end_macro_recording(Context& context)
{
if (context.input_handler().is_recording())
context.input_handler().stop_recording();
else
context.input_handler().on_next_key([](const Key& key, Context& context) {
if (key.modifiers == Key::Modifiers::None)
context.input_handler().start_recording(key.key);
});
}
void replay_macro(Context& context)
{
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static bool running_macro = false;
if (running_macro)
throw runtime_error("nested macros not supported");
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int count = context.numeric_param();
context.input_handler().on_next_key([count](const Key& key, Context& context) mutable {
if (key.modifiers == Key::Modifiers::None)
{
memoryview<String> reg_val = RegisterManager::instance()[key.key].values(context);
if (not reg_val.empty())
{
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running_macro = true;
auto stop_macro = on_scope_end([&] { running_macro = false; });
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scoped_edition edition(context.editor());
do { exec_keys(parse_keys(reg_val[0]), context); } while (--count > 0);
}
}
});
}
enum class JumpDirection { Forward, Backward };
template<JumpDirection direction>
void jump(Context& context)
{
auto jump = (direction == JumpDirection::Forward) ?
context.jump_forward() : context.jump_backward();
Buffer& buffer = const_cast<Buffer&>(jump.front().buffer());
BufferManager::instance().set_last_used_buffer(buffer);
if (&buffer != &context.buffer())
{
auto& manager = ClientManager::instance();
context.change_editor(manager.get_unused_window_for_buffer(buffer));
}
context.editor().select(SelectionList{ jump });
}
String runtime_directory()
{
char buffer[2048];
#if defined(__linux__)
ssize_t res = readlink("/proc/self/exe", buffer, 2048);
assert(res != -1);
buffer[res] = '\0';
#elif defined(__APPLE__)
uint32_t bufsize = 2048;
_NSGetExecutablePath(buffer, &bufsize);
char* canonical_path = realpath(buffer, NULL);
strncpy(buffer, canonical_path, 2048);
free(canonical_path);
#else
# error "finding executable path is not implemented on this platform"
#endif
char* ptr = strrchr(buffer, '/');
if (not ptr)
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throw runtime_error("unable to determine runtime directory");
return String(buffer, ptr);
}
template<typename T>
class Repeated
{
public:
constexpr Repeated(T t) : m_func(t) {}
void operator() (Context& context)
{
int count = context.numeric_param();
do { m_func(context); } while(--count > 0);
}
private:
T m_func;
};
template<typename T>
constexpr Repeated<T> repeated(T func) { return Repeated<T>(func); }
template<SelectMode mode, typename T>
class Select
{
public:
constexpr Select(T t) : m_func(t) {}
void operator() (Context& context)
{
context.editor().select(m_func, mode);
}
private:
T m_func;
};
template<SelectMode mode, typename T>
constexpr Select<mode, T> select(T func) { return Select<mode, T>(func); }
std::unordered_map<Key, std::function<void (Context& context)>> keymap =
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{
{ { Key::Modifiers::None, 'h' }, [](Context& context) { context.editor().move_selections(-CharCount(std::max(context.numeric_param(),1))); } },
{ { Key::Modifiers::None, 'j' }, [](Context& context) { context.editor().move_selections( LineCount(std::max(context.numeric_param(),1))); } },
{ { Key::Modifiers::None, 'k' }, [](Context& context) { context.editor().move_selections(-LineCount(std::max(context.numeric_param(),1))); } },
{ { Key::Modifiers::None, 'l' }, [](Context& context) { context.editor().move_selections( CharCount(std::max(context.numeric_param(),1))); } },
{ { Key::Modifiers::None, 'H' }, [](Context& context) { context.editor().move_selections(-CharCount(std::max(context.numeric_param(),1)), SelectMode::Extend); } },
{ { Key::Modifiers::None, 'J' }, [](Context& context) { context.editor().move_selections( LineCount(std::max(context.numeric_param(),1)), SelectMode::Extend); } },
{ { Key::Modifiers::None, 'K' }, [](Context& context) { context.editor().move_selections(-LineCount(std::max(context.numeric_param(),1)), SelectMode::Extend); } },
{ { Key::Modifiers::None, 'L' }, [](Context& context) { context.editor().move_selections( CharCount(std::max(context.numeric_param(),1)), SelectMode::Extend); } },
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{ { Key::Modifiers::None, 't' }, select_to_next_char<SelectFlags::None> },
{ { Key::Modifiers::None, 'f' }, select_to_next_char<SelectFlags::Inclusive> },
{ { Key::Modifiers::None, 'T' }, select_to_next_char<SelectFlags::Extend> },
{ { Key::Modifiers::None, 'F' }, select_to_next_char<SelectFlags::Inclusive | SelectFlags::Extend> },
{ { Key::Modifiers::Alt, 't' }, select_to_next_char<SelectFlags::Reverse> },
{ { Key::Modifiers::Alt, 'f' }, select_to_next_char<SelectFlags::Inclusive | SelectFlags::Reverse> },
{ { Key::Modifiers::Alt, 'T' }, select_to_next_char<SelectFlags::Extend | SelectFlags::Reverse> },
{ { Key::Modifiers::Alt, 'F' }, select_to_next_char<SelectFlags::Inclusive | SelectFlags::Extend | SelectFlags::Reverse> },
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{ { Key::Modifiers::None, 'd' }, do_erase },
{ { Key::Modifiers::None, 'c' }, do_change },
{ { Key::Modifiers::None, 'i' }, do_insert<InsertMode::Insert> },
{ { Key::Modifiers::None, 'I' }, do_insert<InsertMode::InsertAtLineBegin> },
{ { Key::Modifiers::None, 'a' }, do_insert<InsertMode::Append> },
{ { Key::Modifiers::None, 'A' }, do_insert<InsertMode::AppendAtLineEnd> },
{ { Key::Modifiers::None, 'o' }, do_insert<InsertMode::OpenLineBelow> },
{ { Key::Modifiers::None, 'O' }, do_insert<InsertMode::OpenLineAbove> },
{ { Key::Modifiers::None, 'r' }, do_replace_with_char },
{ { Key::Modifiers::None, 'g' }, do_go<SelectMode::Replace> },
{ { Key::Modifiers::None, 'G' }, do_go<SelectMode::Extend> },
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{ { Key::Modifiers::None, 'y' }, do_yank },
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{ { Key::Modifiers::None, 'p' }, repeated(do_paste<InsertMode::Append>) },
{ { Key::Modifiers::None, 'P' }, repeated(do_paste<InsertMode::Insert>) },
{ { Key::Modifiers::Alt, 'p' }, do_paste<InsertMode::Replace> },
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{ { Key::Modifiers::None, 's' }, do_select_regex },
{ { Key::Modifiers::None, 'S' }, do_split_regex },
{ { Key::Modifiers::Alt, 's' }, do_split_lines },
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{ { Key::Modifiers::None, '.' }, do_repeat_insert },
{ { Key::Modifiers::None, '%' }, [](Context& context) { context.editor().clear_selections(); context.editor().select(select_whole_buffer); } },
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{ { Key::Modifiers::None, ':' }, do_command },
{ { Key::Modifiers::None, '|' }, do_pipe },
{ { Key::Modifiers::None, ' ' }, [](Context& context) { int count = context.numeric_param();
if (count == 0) context.editor().clear_selections();
else context.editor().keep_selection(count-1); } },
{ { Key::Modifiers::Alt, ' ' }, [](Context& context) { int count = context.numeric_param();
if (count == 0) context.editor().flip_selections();
else context.editor().remove_selection(count-1); } },
{ { Key::Modifiers::None, 'w' }, repeated(select<SelectMode::Replace>(select_to_next_word<false>)) },
{ { Key::Modifiers::None, 'e' }, repeated(select<SelectMode::Replace>(select_to_next_word_end<false>)) },
{ { Key::Modifiers::None, 'b' }, repeated(select<SelectMode::Replace>(select_to_previous_word<false>)) },
{ { Key::Modifiers::None, 'W' }, repeated(select<SelectMode::Extend>(select_to_next_word<false>)) },
{ { Key::Modifiers::None, 'E' }, repeated(select<SelectMode::Extend>(select_to_next_word_end<false>)) },
{ { Key::Modifiers::None, 'B' }, repeated(select<SelectMode::Extend>(select_to_previous_word<false>)) },
{ { Key::Modifiers::None, 'x' }, repeated(select<SelectMode::Replace>(select_line)) },
{ { Key::Modifiers::None, 'X' }, repeated(select<SelectMode::Extend>(select_line)) },
{ { Key::Modifiers::None, 'm' }, select<SelectMode::Replace>(select_matching) },
{ { Key::Modifiers::None, 'M' }, select<SelectMode::Extend>(select_matching) },
{ { Key::Modifiers::None, '/' }, do_search<SelectMode::Replace, true> },
{ { Key::Modifiers::None, '?' }, do_search<SelectMode::Extend, true> },
{ { Key::Modifiers::Alt, '/' }, do_search<SelectMode::Replace, false> },
{ { Key::Modifiers::Alt, '?' }, do_search<SelectMode::Extend, false> },
{ { Key::Modifiers::None, 'n' }, do_search_next<SelectMode::Replace, true> },
{ { Key::Modifiers::Alt, 'n' }, do_search_next<SelectMode::ReplaceLast, true> },
{ { Key::Modifiers::None, 'N' }, do_search_next<SelectMode::Append, true> },
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{ { Key::Modifiers::None, 'u' }, repeated([](Context& context) { if (not context.editor().undo()) { context.print_status("nothing left to undo"); } }) },
{ { Key::Modifiers::None, 'U' }, repeated([](Context& context) { if (not context.editor().redo()) { context.print_status("nothing left to redo"); } }) },
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{ { Key::Modifiers::Alt, 'i' }, do_select_object<SurroundFlags::ToBegin | SurroundFlags::ToEnd | SurroundFlags::Inner> },
{ { Key::Modifiers::Alt, 'a' }, do_select_object<SurroundFlags::ToBegin | SurroundFlags::ToEnd> },
{ { Key::Modifiers::None, ']' }, do_select_object<SurroundFlags::ToEnd> },
{ { Key::Modifiers::None, '[' }, do_select_object<SurroundFlags::ToBegin> },
{ { Key::Modifiers::Alt, 'w' }, repeated(select<SelectMode::Replace>(select_to_next_word<true>)) },
{ { Key::Modifiers::Alt, 'e' }, repeated(select<SelectMode::Replace>(select_to_next_word_end<true>)) },
{ { Key::Modifiers::Alt, 'b' }, repeated(select<SelectMode::Replace>(select_to_previous_word<true>)) },
{ { Key::Modifiers::Alt, 'W' }, repeated(select<SelectMode::Extend>(select_to_next_word<true>)) },
{ { Key::Modifiers::Alt, 'E' }, repeated(select<SelectMode::Extend>(select_to_next_word_end<true>)) },
{ { Key::Modifiers::Alt, 'B' }, repeated(select<SelectMode::Extend>(select_to_previous_word<true>)) },
{ { Key::Modifiers::Alt, 'l' }, repeated(select<SelectMode::Replace>(select_to_eol)) },
{ { Key::Modifiers::Alt, 'L' }, repeated(select<SelectMode::Extend>(select_to_eol)) },
{ { Key::Modifiers::Alt, 'h' }, repeated(select<SelectMode::Replace>(select_to_eol_reverse)) },
{ { Key::Modifiers::Alt, 'H' }, repeated(select<SelectMode::Extend>(select_to_eol_reverse)) },
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{ { Key::Modifiers::Alt, 'j' }, do_join },
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{ { Key::Modifiers::None, '<' }, do_deindent },
{ { Key::Modifiers::None, '>' }, do_indent },
{ { Key::Modifiers::Alt, 'x' }, select<SelectMode::Replace>(select_whole_lines) },
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{ { Key::Modifiers::Alt, 'c' }, [](Context& context) { if (context.has_window()) context.window().center_selection(); } },
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{ { Key::Modifiers::None, Key::PageUp }, do_scroll<Key::PageUp> },
{ { Key::Modifiers::None, Key::PageDown }, do_scroll<Key::PageDown> },
{ { Key::Modifiers::Control, 'i' }, jump<JumpDirection::Forward> },
{ { Key::Modifiers::Control, 'o' }, jump<JumpDirection::Backward> },
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{ { Key::Modifiers::Alt, 'r' }, do_rotate_selections },
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{ { Key::Modifiers::None, 'q' }, start_or_end_macro_recording },
{ { Key::Modifiers::None, '@' }, replay_macro },
{ { Key::Modifiers::None, '*' }, use_selection_as_search_pattern },
};
}
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void run_unit_tests();
struct Server : public Singleton<Server>
{
Server()
{
m_filename = "/tmp/kak-" + int_to_str(getpid());
int listen_sock = socket(AF_UNIX, SOCK_STREAM, 0);
fcntl(listen_sock, F_SETFD, FD_CLOEXEC);
sockaddr_un addr;
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, m_filename.c_str(), sizeof(addr.sun_path) - 1);
if (bind(listen_sock, (sockaddr*) &addr, sizeof(sockaddr_un)) == -1)
throw runtime_error("unable to bind listen socket " + m_filename);
if (listen(listen_sock, 4) == -1)
throw runtime_error("unable to listen on socket " + m_filename);
auto accepter = [](FDWatcher& watcher) {
sockaddr_un client_addr;
socklen_t client_addr_len = sizeof(sockaddr_un);
int sock = accept(watcher.fd(), (sockaddr*) &client_addr, &client_addr_len);
if (sock == -1)
throw runtime_error("accept failed");
fcntl(sock, F_SETFD, FD_CLOEXEC);
new FDWatcher{sock, handle_remote};
};
m_listener.reset(new FDWatcher{listen_sock, accepter});
}
~Server()
{
unlink(m_filename.c_str());
close(m_listener->fd());
}
const String& filename() const { return m_filename; }
private:
String m_filename;
std::unique_ptr<FDWatcher> m_listener;
};
void register_env_vars()
{
ShellManager& shell_manager = ShellManager::instance();
shell_manager.register_env_var("bufname",
[](const String& name, const Context& context)
{ return context.buffer().name(); });
shell_manager.register_env_var("selection",
[](const String& name, const Context& context)
{ return context.editor().selections_content().back(); });
shell_manager.register_env_var("runtime",
[](const String& name, const Context& context)
{ return runtime_directory(); });
shell_manager.register_env_var("opt_.+",
[](const String& name, const Context& context)
{ return context.options()[name.substr(4_byte)].as_string(); });
shell_manager.register_env_var("reg_.+",
[](const String& name, const Context& context)
{ return RegisterManager::instance()[name[4]].values(context)[0]; });
shell_manager.register_env_var("socket",
[](const String& name, const Context& context)
{ return Server::instance().filename(); });
shell_manager.register_env_var("client",
[](const String& name, const Context& context)
{ return ClientManager::instance().get_client_name(context); });
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shell_manager.register_env_var("cursor_line",
[](const String& name, const Context& context)
{ return int_to_str((int)context.editor().selections().back().last().line() + 1); });
shell_manager.register_env_var("cursor_column",
[](const String& name, const Context& context)
{ return int_to_str((int)context.editor().selections().back().last().column() + 1); });
}
void register_registers()
{
RegisterManager& register_manager = RegisterManager::instance();
register_manager.register_dynamic_register('%', [](const Context& context) { return std::vector<String>(1, context.buffer().name()); });
register_manager.register_dynamic_register('.', [](const Context& context) { return context.editor().selections_content(); });
for (size_t i = 0; i < 10; ++i)
{
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register_manager.register_dynamic_register('0'+i,
[i](const Context& context) {
std::vector<String> result;
for (auto& sel : context.editor().selections())
result.emplace_back(i < sel.captures().size() ? sel.captures()[i] : "");
return result;
});
}
}
void create_local_client(const String& init_command)
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{
class LocalNCursesUI : public NCursesUI
{
~LocalNCursesUI()
{
if (not ClientManager::instance().empty() and fork())
{
this->~NCursesUI();
puts("detached from terminal\n");
exit(0);
}
}
};
UserInterface* ui = new LocalNCursesUI{};
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ClientManager::instance().create_client(
std::unique_ptr<UserInterface>{ui}, init_command);
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}
RemoteClient* connect_to(const String& pid, const String& init_command)
{
auto filename = "/tmp/kak-" + pid;
int sock = socket(AF_UNIX, SOCK_STREAM, 0);
fcntl(sock, F_SETFD, FD_CLOEXEC);
sockaddr_un addr;
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, filename.c_str(), sizeof(addr.sun_path) - 1);
if (connect(sock, (sockaddr*)&addr, sizeof(addr.sun_path)) == -1)
throw runtime_error("connect to " + filename + " failed");
NCursesUI* ui = new NCursesUI{};
RemoteClient* remote_client = new RemoteClient{sock, ui, init_command};
return remote_client;
}
void signal_handler(int signal)
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{
endwin();
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;
}
on_assert_failed(text);
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abort();
}
int main(int argc, char* argv[])
{
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try
{
std::locale::global(std::locale("en_US.UTF-8"));
signal(SIGSEGV, signal_handler);
signal(SIGFPE, signal_handler);
signal(SIGQUIT, signal_handler);
signal(SIGTERM, signal_handler);
std::vector<String> params;
for (size_t i = 1; i < argc; ++i)
params.push_back(argv[i]);
ParametersParser parser(params, { { "c", true }, { "e", true }, { "n", false } });
EventManager event_manager;
String init_command;
if (parser.has_option("e"))
init_command = parser.option_value("e");
if (parser.has_option("c"))
{
try
{
std::unique_ptr<RemoteClient> client(
connect_to(parser.option_value("c"), init_command));
while (true)
event_manager.handle_next_events();
}
catch (peer_disconnected&)
{
puts("disconnected");
}
return 0;
}
GlobalOptions global_options;
GlobalHooks global_hooks;
ShellManager shell_manager;
CommandManager command_manager;
BufferManager buffer_manager;
RegisterManager register_manager;
HighlighterRegistry highlighter_registry;
FilterRegistry filter_registry;
ColorRegistry color_registry;
ClientManager client_manager;
run_unit_tests();
register_env_vars();
register_registers();
register_commands();
register_highlighters();
register_filters();
write_debug("*** This is the debug buffer, where debug info will be written ***");
write_debug("pid: " + int_to_str(getpid()));
write_debug("utf-8 test: é á ï");
Server server;
if (not parser.has_option("n")) try
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{
Context initialisation_context;
command_manager.execute("source " + runtime_directory() + "/kakrc",
initialisation_context);
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}
catch (Kakoune::runtime_error& error)
{
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write_debug("error while parsing kakrc: " + error.description());
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}
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if (parser.positional_count() != 0)
{
// create buffers in reverse order so that the first given buffer
// is the most recently created one.
for (int i = parser.positional_count() - 1; i >= 0; --i)
{
const String& file = parser[i];
if (not create_buffer_from_file(file))
new Buffer(file, Buffer::Flags::New | Buffer::Flags::File);
}
}
else
new Buffer("*scratch*", Buffer::Flags::None);
create_local_client(init_command);
while (not client_manager.empty())
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event_manager.handle_next_events();
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}
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catch (Kakoune::exception& error)
{
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on_assert_failed(("uncaught exception:\n" + error.description()).c_str());
return -1;
}
catch (...)
{
on_assert_failed("uncaught exception");
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return -1;
}
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return 0;
}