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 "highlighter_registry.hh"
#include "filters.hh"
#include "filter_registry.hh"
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#include "hook_manager.hh"
#include "option_manager.hh"
#include "context.hh"
#include "ncurses.hh"
#include "regex.hh"
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#include <unordered_map>
#include <sys/types.h>
#include <sys/wait.h>
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using namespace Kakoune;
using namespace std::placeholders;
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namespace Kakoune
{
Context main_context;
bool quit_requested = false;
struct InsertSequence
{
IncrementalInserter::Mode mode;
std::vector<Key> keys;
InsertSequence() : mode(IncrementalInserter::Mode::Insert) {}
};
InsertSequence last_insert_sequence;
template<typename GetKey, typename Redraw>
void insert_sequence(IncrementalInserter& inserter,
const Context& context,
GetKey get_key, Redraw redraw)
{
while (true)
{
Key key = get_key();
switch (key.modifiers)
{
case Key::Modifiers::None:
switch (key.key)
{
case 27:
return;
default:
inserter.insert(String() + key.key);
}
break;
case Key::Modifiers::Control:
switch (key.key)
{
case 'r':
{
Key next_key = get_key();
if (next_key.modifiers == Key::Modifiers::None)
inserter.insert(RegisterManager::instance()[next_key.key].values(context));
break;
}
case 'm':
inserter.insert(String() + '\n');
break;
case 'i':
inserter.insert(String() + '\t');
break;
case 'd':
inserter.move_cursors({0, -1});
break;
case 'e':
inserter.move_cursors({0, 1});
break;
case 'g':
inserter.erase();
break;
}
break;
}
redraw();
}
}
template<IncrementalInserter::Mode mode>
void do_insert(const Context& context)
{
last_insert_sequence.mode = mode;
last_insert_sequence.keys.clear();
IncrementalInserter inserter(context.editor(), mode);
draw_editor_ifn(context.editor());
insert_sequence(inserter, context,
[&]() { Key key = get_key();
last_insert_sequence.keys.push_back(key);
return key; },
[&]() { draw_editor_ifn(context.editor()); });
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}
void do_repeat_insert(const Context& context)
{
if (last_insert_sequence.keys.empty())
return;
IncrementalInserter inserter(context.editor(), last_insert_sequence.mode);
size_t index = 0;
insert_sequence(inserter, context,
[&]() { return last_insert_sequence.keys[index++]; },
[](){});
}
template<bool append>
void do_go(const Context& context)
{
int count = context.numeric_param();
Editor& editor = context.editor();
if (count != 0)
{
BufferIterator target =
editor.buffer().iterator_at(BufferCoord(count-1, 0));
editor.select(target);
}
else
{
Key key = get_key();
if (key.modifiers != Key::Modifiers::None)
return;
switch (key.key)
{
case 'g':
case 't':
{
BufferIterator target =
editor.buffer().iterator_at(BufferCoord(0,0));
editor.select(target);
break;
}
case 'l':
case 'L':
editor.select(select_to_eol, append);
break;
case 'h':
case 'H':
editor.select(select_to_eol_reverse, append);
break;
case 'b':
{
BufferIterator target = editor.buffer().iterator_at(
BufferCoord(editor.buffer().line_count() - 1, 0));
editor.select(target);
break;
}
}
}
}
void do_command(const Context& context)
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{
try
{
auto cmdline = prompt(":", context,
std::bind(&CommandManager::complete,
&CommandManager::instance(),
_1, _2, _3));
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CommandManager::instance().execute(cmdline, context);
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}
catch (prompt_aborted&) {}
}
void do_pipe(const Context& context)
{
try
{
auto cmdline = prompt("|", context, complete_nothing);
context.buffer().begin_undo_group();
for (auto& sel : const_cast<const Editor&>(context.editor()).selections())
{
String new_content = ShellManager::instance().pipe(String(sel.begin(), sel.end()),
cmdline, context, {});
context.buffer().modify(Modification::make_erase(sel.begin(), sel.end()));
context.buffer().modify(Modification::make_insert(sel.begin(), new_content));
}
context.buffer().end_undo_group();
}
catch (prompt_aborted&) {}
}
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template<bool append>
void do_search(const Context& context)
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{
try
{
String ex = prompt("/", context);
if (ex.empty())
ex = RegisterManager::instance()['/'].values(context)[0];
else
RegisterManager::instance()['/'] = ex;
context.editor().select(std::bind(select_next_match, _1, ex), append);
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}
catch (prompt_aborted&) {}
}
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template<bool append>
void do_search_next(const Context& context)
{
const String& ex = RegisterManager::instance()['/'].values(context)[0];
if (not ex.empty())
context.editor().select(std::bind(select_next_match, _1, ex), append);
else
print_status("no search pattern");
}
void do_yank(const Context& context)
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{
RegisterManager::instance()['"'] = context.editor().selections_content();
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}
void do_erase(const Context& context)
{
RegisterManager::instance()['"'] = context.editor().selections_content();
context.editor().erase();
}
void do_change(const Context& context)
{
RegisterManager::instance()['"'] = context.editor().selections_content();
do_insert<IncrementalInserter::Mode::Change>(context);
}
enum class PasteMode
{
Before,
After,
Replace
};
template<PasteMode paste_mode>
void do_paste(const Context& context)
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{
Editor& editor = context.editor();
int count = context.numeric_param();
Register& reg = RegisterManager::instance()['"'];
if (count == 0)
{
if (paste_mode == PasteMode::Before)
editor.insert(reg.values(context));
else if (paste_mode == PasteMode::After)
editor.append(reg.values(context));
else if (paste_mode == PasteMode::Replace)
editor.replace(reg.values(context));
}
else
{
if (paste_mode == PasteMode::Before)
editor.insert(reg.values(context)[count-1]);
else if (paste_mode == PasteMode::After)
editor.append(reg.values(context)[count-1]);
else if (paste_mode == PasteMode::Replace)
editor.replace(reg.values(context)[count-1]);
}
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}
void do_select_regex(const Context& context)
{
try
{
String ex = prompt("select: ", context);
context.editor().multi_select(std::bind(select_all_matches, _1, ex));
}
catch (prompt_aborted&) {}
}
void do_split_regex(const Context& context)
{
try
{
String ex = prompt("split: ", context);
context.editor().multi_select(std::bind(split_selection, _1, ex));
}
catch (prompt_aborted&) {}
}
void do_join(const Context& context)
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{
Editor& editor = context.editor();
editor.select(select_whole_lines);
editor.select(select_to_eol, true);
editor.multi_select(std::bind(select_all_matches, _1, "\n\\h*"));
editor.replace(" ");
editor.clear_selections();
editor.move_selections({0, -1});
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}
template<bool inner>
void do_select_object(const Context& context)
{
typedef std::function<SelectionAndCaptures (const Selection&)> Selector;
static const std::unordered_map<Key, Selector> key_to_selector =
{
{ { Key::Modifiers::None, '(' }, std::bind(select_surrounding, _1, std::pair<char, char>{ '(', ')' }, inner) },
{ { Key::Modifiers::None, ')' }, std::bind(select_surrounding, _1, std::pair<char, char>{ '(', ')' }, inner) },
{ { Key::Modifiers::None, 'b' }, std::bind(select_surrounding, _1, std::pair<char, char>{ '(', ')' }, inner) },
{ { Key::Modifiers::None, '{' }, std::bind(select_surrounding, _1, std::pair<char, char>{ '{', '}' }, inner) },
{ { Key::Modifiers::None, '}' }, std::bind(select_surrounding, _1, std::pair<char, char>{ '{', '}' }, inner) },
{ { Key::Modifiers::None, 'B' }, std::bind(select_surrounding, _1, std::pair<char, char>{ '{', '}' }, inner) },
{ { Key::Modifiers::None, '[' }, std::bind(select_surrounding, _1, std::pair<char, char>{ '[', ']' }, inner) },
{ { Key::Modifiers::None, ']' }, std::bind(select_surrounding, _1, std::pair<char, char>{ '[', ']' }, inner) },
{ { Key::Modifiers::None, '<' }, std::bind(select_surrounding, _1, std::pair<char, char>{ '<', '>' }, inner) },
{ { Key::Modifiers::None, '>' }, std::bind(select_surrounding, _1, std::pair<char, char>{ '<', '>' }, inner) },
{ { Key::Modifiers::None, 'w' }, std::bind(select_whole_word<false>, _1, inner) },
{ { Key::Modifiers::None, 'W' }, std::bind(select_whole_word<true>, _1, inner) },
};
Key key = get_key();
auto it = key_to_selector.find(key);
if (it != key_to_selector.end())
context.editor().select(it->second);
}
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template<typename T>
class Repeated
{
public:
Repeated(T t) : m_func(t) {}
void operator() (const Context& context)
{
int count = context.numeric_param();
do { m_func(context); } while(--count > 0);
}
private:
T m_func;
};
template<typename T>
Repeated<T> repeated(T func) { return Repeated<T>(func); }
std::unordered_map<Key, std::function<void (const Context& context)>> keymap =
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{
{ { Key::Modifiers::None, 'h' }, [](const Context& context) { context.editor().move_selections(BufferCoord(0, -std::max(context.numeric_param(),1))); } },
{ { Key::Modifiers::None, 'j' }, [](const Context& context) { context.editor().move_selections(BufferCoord( std::max(context.numeric_param(),1), 0)); } },
{ { Key::Modifiers::None, 'k' }, [](const Context& context) { context.editor().move_selections(BufferCoord(-std::max(context.numeric_param(),1), 0)); } },
{ { Key::Modifiers::None, 'l' }, [](const Context& context) { context.editor().move_selections(BufferCoord(0, std::max(context.numeric_param(),1))); } },
{ { Key::Modifiers::None, 'H' }, [](const Context& context) { context.editor().move_selections(BufferCoord(0, -std::max(context.numeric_param(),1)), true); } },
{ { Key::Modifiers::None, 'J' }, [](const Context& context) { context.editor().move_selections(BufferCoord( std::max(context.numeric_param(),1), 0), true); } },
{ { Key::Modifiers::None, 'K' }, [](const Context& context) { context.editor().move_selections(BufferCoord(-std::max(context.numeric_param(),1), 0), true); } },
{ { Key::Modifiers::None, 'L' }, [](const Context& context) { context.editor().move_selections(BufferCoord(0, std::max(context.numeric_param(),1)), true); } },
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{ { Key::Modifiers::None, 't' }, [](const Context& context) { context.editor().select(std::bind(select_to, _1, get_key().key, context.numeric_param(), false)); } },
{ { Key::Modifiers::None, 'f' }, [](const Context& context) { context.editor().select(std::bind(select_to, _1, get_key().key, context.numeric_param(), true)); } },
{ { Key::Modifiers::None, 'T' }, [](const Context& context) { context.editor().select(std::bind(select_to, _1, get_key().key, context.numeric_param(), false), true); } },
{ { Key::Modifiers::None, 'F' }, [](const Context& context) { context.editor().select(std::bind(select_to, _1, get_key().key, context.numeric_param(), true), true); } },
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{ { Key::Modifiers::None, 'd' }, do_erase },
{ { Key::Modifiers::None, 'c' }, do_change },
{ { Key::Modifiers::None, 'i' }, do_insert<IncrementalInserter::Mode::Insert> },
{ { Key::Modifiers::None, 'I' }, do_insert<IncrementalInserter::Mode::InsertAtLineBegin> },
{ { Key::Modifiers::None, 'a' }, do_insert<IncrementalInserter::Mode::Append> },
{ { Key::Modifiers::None, 'A' }, do_insert<IncrementalInserter::Mode::AppendAtLineEnd> },
{ { Key::Modifiers::None, 'o' }, do_insert<IncrementalInserter::Mode::OpenLineBelow> },
{ { Key::Modifiers::None, 'O' }, do_insert<IncrementalInserter::Mode::OpenLineAbove> },
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{ { Key::Modifiers::None, 'g' }, do_go<false> },
{ { Key::Modifiers::None, 'G' }, do_go<true> },
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{ { Key::Modifiers::None, 'y' }, do_yank },
{ { Key::Modifiers::None, 'p' }, do_paste<PasteMode::After> },
{ { Key::Modifiers::None, 'P' }, do_paste<PasteMode::Before> },
{ { Key::Modifiers::Alt, 'p' }, do_paste<PasteMode::Replace> },
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{ { Key::Modifiers::None, 's' }, do_select_regex },
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{ { Key::Modifiers::None, '.' }, do_repeat_insert },
{ { Key::Modifiers::None, '%' }, [](const 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 },
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{ { Key::Modifiers::None, ' ' }, [](const Context& context) { int count = context.numeric_param();
if (count == 0) context.editor().clear_selections();
else context.editor().keep_selection(count-1); } },
{ { Key::Modifiers::Alt, ' ' }, [](const Context& context) { int count = context.numeric_param();
if (count == 0) context.editor().clear_selections();
else context.editor().remove_selection(count-1); } },
{ { Key::Modifiers::None, 'w' }, repeated([](const Context& context) { context.editor().select(select_to_next_word<false>); }) },
{ { Key::Modifiers::None, 'e' }, repeated([](const Context& context) { context.editor().select(select_to_next_word_end<false>); }) },
{ { Key::Modifiers::None, 'b' }, repeated([](const Context& context) { context.editor().select(select_to_previous_word<false>); }) },
{ { Key::Modifiers::None, 'W' }, repeated([](const Context& context) { context.editor().select(select_to_next_word<false>, true); }) },
{ { Key::Modifiers::None, 'E' }, repeated([](const Context& context) { context.editor().select(select_to_next_word_end<false>, true); }) },
{ { Key::Modifiers::None, 'B' }, repeated([](const Context& context) { context.editor().select(select_to_previous_word<false>, true); }) },
{ { Key::Modifiers::None, 'x' }, repeated([](const Context& context) { context.editor().select(select_line, false); }) },
{ { Key::Modifiers::None, 'X' }, repeated([](const Context& context) { context.editor().select(select_line, true); }) },
{ { Key::Modifiers::None, 'm' }, [](const Context& context) { context.editor().select(select_matching); } },
{ { Key::Modifiers::None, 'M' }, [](const Context& context) { context.editor().select(select_matching, true); } },
{ { Key::Modifiers::None, '/' }, do_search<false> },
{ { Key::Modifiers::None, '?' }, do_search<true> },
{ { Key::Modifiers::None, 'n' }, do_search_next<false> },
{ { Key::Modifiers::None, 'N' }, do_search_next<true> },
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{ { Key::Modifiers::None, 'u' }, repeated([](const Context& context) { if (not context.editor().undo()) { print_status("nothing left to undo"); } }) },
{ { Key::Modifiers::None, 'U' }, repeated([](const Context& context) { if (not context.editor().redo()) { print_status("nothing left to redo"); } }) },
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{ { Key::Modifiers::Alt, 'i' }, do_select_object<true> },
{ { Key::Modifiers::Alt, 'a' }, do_select_object<false> },
{ { Key::Modifiers::Alt, 't' }, [](const Context& context) { context.editor().select(std::bind(select_to_reverse, _1, get_key().key, context.numeric_param(), false)); } },
{ { Key::Modifiers::Alt, 'f' }, [](const Context& context) { context.editor().select(std::bind(select_to_reverse, _1, get_key().key, context.numeric_param(), true)); } },
{ { Key::Modifiers::Alt, 'T' }, [](const Context& context) { context.editor().select(std::bind(select_to_reverse, _1, get_key().key, context.numeric_param(), false), true); } },
{ { Key::Modifiers::Alt, 'F' }, [](const Context& context) { context.editor().select(std::bind(select_to_reverse, _1, get_key().key, context.numeric_param(), true), true); } },
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{ { Key::Modifiers::Alt, 'w' }, repeated([](const Context& context) { context.editor().select(select_to_next_word<true>); }) },
{ { Key::Modifiers::Alt, 'e' }, repeated([](const Context& context) { context.editor().select(select_to_next_word_end<true>); }) },
{ { Key::Modifiers::Alt, 'b' }, repeated([](const Context& context) { context.editor().select(select_to_previous_word<true>); }) },
{ { Key::Modifiers::Alt, 'W' }, repeated([](const Context& context) { context.editor().select(select_to_next_word<true>, true); }) },
{ { Key::Modifiers::Alt, 'E' }, repeated([](const Context& context) { context.editor().select(select_to_next_word_end<true>, true); }) },
{ { Key::Modifiers::Alt, 'B' }, repeated([](const Context& context) { context.editor().select(select_to_previous_word<true>, true); }) },
{ { Key::Modifiers::Alt, 'l' }, repeated([](const Context& context) { context.editor().select(select_to_eol, false); }) },
{ { Key::Modifiers::Alt, 'L' }, repeated([](const Context& context) { context.editor().select(select_to_eol, true); }) },
{ { Key::Modifiers::Alt, 'h' }, repeated([](const Context& context) { context.editor().select(select_to_eol_reverse, false); }) },
{ { Key::Modifiers::Alt, 'H' }, repeated([](const Context& context) { context.editor().select(select_to_eol_reverse, true); }) },
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{ { Key::Modifiers::Alt, 's' }, do_split_regex },
{ { Key::Modifiers::Alt, 'j' }, do_join },
{ { Key::Modifiers::Alt, 'x' }, [](const Context& context) { context.editor().select(select_whole_lines); } },
};
}
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void run_unit_tests();
int main(int argc, char* argv[])
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{
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GlobalOptionManager option_manager;
GlobalHookManager hook_manager;
ShellManager shell_manager;
CommandManager command_manager;
BufferManager buffer_manager;
RegisterManager register_manager;
HighlighterRegistry highlighter_registry;
FilterRegistry filter_registry;
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run_unit_tests();
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.window().selections_content().back(); });
shell_manager.register_env_var("opt_.+",
[](const String& name, const Context& context)
{ return context.option_manager()[name.substr(4)].as_string(); });
shell_manager.register_env_var("reg_.+",
[](const String& name, const Context& context)
{ return RegisterManager::instance()[name[4]].values(context)[0]; });
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(); });
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register_commands();
register_highlighters();
register_filters();
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try
{
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NCursesClient client;
current_client = &client;
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try
{
command_manager.execute("runtime kakrc", main_context);
}
catch (Kakoune::runtime_error& error)
{
print_status(error.description());
}
write_debug("*** This is the debug buffer, where debug info will be written ***\n");
write_debug("utf-8 test: é á ï");
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if (argc > 1)
command_manager.execute(String("edit ") + argv[1], main_context);
else
{
auto buffer = new Buffer("*scratch*", Buffer::Type::Scratch);
main_context = Context(*buffer->get_or_create_window());
}
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current_client->draw_window(main_context.window());
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int count = 0;
while(not quit_requested)
{
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try
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{
Key key = get_key();
if (key.modifiers == Key::Modifiers::None and isdigit(key.key))
count = count * 10 + key.key - '0';
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else
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{
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auto it = keymap.find(key);
if (it != keymap.end())
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{
main_context.numeric_param(count);
it->second(main_context);
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current_client->draw_window(main_context.window());
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}
count = 0;
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}
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}
catch (Kakoune::runtime_error& error)
{
print_status(error.description());
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}
}
}
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catch (Kakoune::exception& error)
{
puts("uncaught exception:\n");
puts(error.description().c_str());
return -1;
}
main_context = Context();
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return 0;
}