home/src/main.cc

512 lines
20 KiB
C++

#include "window.hh"
#include "buffer.hh"
#include "shell_manager.hh"
#include "commands.hh"
#include "command_manager.hh"
#include "buffer_manager.hh"
#include "register_manager.hh"
#include "selectors.hh"
#include "assert.hh"
#include "debug.hh"
#include "highlighters.hh"
#include "highlighter_registry.hh"
#include "filters.hh"
#include "filter_registry.hh"
#include "hook_manager.hh"
#include "option_manager.hh"
#include "context.hh"
#include "ncurses.hh"
#include "regex.hh"
#include <unordered_map>
#include <sys/types.h>
#include <sys/wait.h>
using namespace Kakoune;
using namespace std::placeholders;
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;
bool insert_char(IncrementalInserter& inserter, const Key& key)
{
switch (key.modifiers)
{
case Key::Modifiers::None:
switch (key.key)
{
case 27:
return false;
default:
inserter.insert(String() + key.key);
}
break;
case Key::Modifiers::Control:
switch (key.key)
{
case 'r':
{
Key next_key = get_key();
last_insert_sequence.keys.push_back(next_key);
if (next_key.modifiers == Key::Modifiers::None)
{
switch (next_key.key)
{
case '%':
inserter.insert(inserter.buffer().name());
break;
default:
inserter.insert(RegisterManager::instance()[next_key.key]);
}
}
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;
default:
break;
}
return true;
}
void do_insert(Editor& editor, IncrementalInserter::Mode mode)
{
last_insert_sequence.mode = mode;
last_insert_sequence.keys.clear();
IncrementalInserter inserter(editor, mode);
draw_editor_ifn(editor);
while(true)
{
Key key = get_key();
if (not insert_char(inserter, key))
break;
last_insert_sequence.keys.push_back(key);
draw_editor_ifn(editor);
}
}
void do_repeat_insert(Editor& editor, int count)
{
IncrementalInserter inserter(editor, last_insert_sequence.mode);
for (const Key& key : last_insert_sequence.keys)
{
insert_char(inserter, key);
}
draw_editor_ifn(editor);
}
template<bool append>
void do_go(Editor& editor, int count)
{
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()
{
try
{
auto cmdline = prompt(":", std::bind(&CommandManager::complete,
&CommandManager::instance(),
_1, _2));
CommandManager::instance().execute(cmdline, main_context);
}
catch (prompt_aborted&) {}
}
void do_pipe(Editor& editor, int count)
{
try
{
auto cmdline = prompt("|", complete_nothing);
editor.buffer().begin_undo_group();
for (auto& sel : const_cast<const Editor&>(editor).selections())
{
String new_content = ShellManager::instance().pipe(String(sel.begin(), sel.end()),
cmdline, main_context, {});
editor.buffer().modify(Modification::make_erase(sel.begin(), sel.end()));
editor.buffer().modify(Modification::make_insert(sel.begin(), new_content));
}
editor.buffer().end_undo_group();
}
catch (prompt_aborted&) {}
}
template<bool append>
void do_search(Editor& editor)
{
try
{
String ex = prompt("/");
if (ex.empty())
ex = RegisterManager::instance()['/'][0];
else
RegisterManager::instance()['/'] = ex;
editor.select(std::bind(select_next_match, _1, ex), append);
}
catch (prompt_aborted&) {}
}
template<bool append>
void do_search_next(Editor& editor)
{
const String& ex = RegisterManager::instance()['/'][0];
if (not ex.empty())
editor.select(std::bind(select_next_match, _1, ex), append);
else
print_status("no search pattern");
}
void do_yank(Editor& editor, int count)
{
RegisterManager::instance()['"'] = editor.selections_content();
}
void do_erase(Editor& editor, int count)
{
RegisterManager::instance()['"'] = editor.selections_content();
editor.erase();
}
void do_change(Editor& editor, int count)
{
RegisterManager::instance()['"'] = editor.selections_content();
do_insert(editor, IncrementalInserter::Mode::Change);
}
template<bool append>
void do_paste(Editor& editor, int count)
{
Register& reg = RegisterManager::instance()['"'];
if (count == 0)
{
if (append)
editor.append(reg);
else
editor.insert(reg);
}
else
{
if (append)
editor.append(reg[count-1]);
else
editor.insert(reg[count-1]);
}
}
void do_select_regex(Editor& editor, int count)
{
try
{
String ex = prompt("select: ");
editor.multi_select(std::bind(select_all_matches, _1, ex));
}
catch (prompt_aborted&) {}
}
void do_split_regex(Editor& editor, int count)
{
try
{
String ex = prompt("split: ");
editor.multi_select(std::bind(split_selection, _1, ex));
}
catch (prompt_aborted&) {}
}
void do_join(Editor& editor, int count)
{
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});
}
template<bool inner>
void do_select_object(Editor& editor, int count)
{
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())
editor.select(it->second);
}
std::unordered_map<Key, std::function<void (Editor& editor, int count)>> keymap =
{
{ { Key::Modifiers::None, 'h' }, [](Editor& editor, int count) { editor.move_selections(BufferCoord(0, -std::max(count,1))); } },
{ { Key::Modifiers::None, 'j' }, [](Editor& editor, int count) { editor.move_selections(BufferCoord( std::max(count,1), 0)); } },
{ { Key::Modifiers::None, 'k' }, [](Editor& editor, int count) { editor.move_selections(BufferCoord(-std::max(count,1), 0)); } },
{ { Key::Modifiers::None, 'l' }, [](Editor& editor, int count) { editor.move_selections(BufferCoord(0, std::max(count,1))); } },
{ { Key::Modifiers::None, 'H' }, [](Editor& editor, int count) { editor.move_selections(BufferCoord(0, -std::max(count,1)), true); } },
{ { Key::Modifiers::None, 'J' }, [](Editor& editor, int count) { editor.move_selections(BufferCoord( std::max(count,1), 0), true); } },
{ { Key::Modifiers::None, 'K' }, [](Editor& editor, int count) { editor.move_selections(BufferCoord(-std::max(count,1), 0), true); } },
{ { Key::Modifiers::None, 'L' }, [](Editor& editor, int count) { editor.move_selections(BufferCoord(0, std::max(count,1)), true); } },
{ { Key::Modifiers::None, 't' }, [](Editor& editor, int count) { editor.select(std::bind(select_to, _1, get_key().key, count, false)); } },
{ { Key::Modifiers::None, 'f' }, [](Editor& editor, int count) { editor.select(std::bind(select_to, _1, get_key().key, count, true)); } },
{ { Key::Modifiers::None, 'T' }, [](Editor& editor, int count) { editor.select(std::bind(select_to, _1, get_key().key, count, false), true); } },
{ { Key::Modifiers::None, 'F' }, [](Editor& editor, int count) { editor.select(std::bind(select_to, _1, get_key().key, count, true), true); } },
{ { Key::Modifiers::None, 'd' }, do_erase },
{ { Key::Modifiers::None, 'c' }, do_change },
{ { Key::Modifiers::None, 'i' }, [](Editor& editor, int count) { do_insert(editor, IncrementalInserter::Mode::Insert); } },
{ { Key::Modifiers::None, 'I' }, [](Editor& editor, int count) { do_insert(editor, IncrementalInserter::Mode::InsertAtLineBegin); } },
{ { Key::Modifiers::None, 'a' }, [](Editor& editor, int count) { do_insert(editor, IncrementalInserter::Mode::Append); } },
{ { Key::Modifiers::None, 'A' }, [](Editor& editor, int count) { do_insert(editor, IncrementalInserter::Mode::AppendAtLineEnd); } },
{ { Key::Modifiers::None, 'o' }, [](Editor& editor, int count) { do_insert(editor, IncrementalInserter::Mode::OpenLineBelow); } },
{ { Key::Modifiers::None, 'O' }, [](Editor& editor, int count) { do_insert(editor, IncrementalInserter::Mode::OpenLineAbove); } },
{ { Key::Modifiers::None, 'g' }, do_go<false> },
{ { Key::Modifiers::None, 'G' }, do_go<true> },
{ { Key::Modifiers::None, 'y' }, do_yank },
{ { Key::Modifiers::None, 'p' }, do_paste<true> },
{ { Key::Modifiers::None, 'P' }, do_paste<false> },
{ { Key::Modifiers::None, 's' }, do_select_regex },
{ { Key::Modifiers::None, '.' }, do_repeat_insert },
{ { Key::Modifiers::None, '%' }, [](Editor& editor, int count) { editor.clear_selections(); editor.select(select_whole_buffer); } },
{ { Key::Modifiers::None, ':' }, [](Editor& editor, int count) { do_command(); } },
{ { Key::Modifiers::None, '|' }, do_pipe },
{ { Key::Modifiers::None, ' ' }, [](Editor& editor, int count) { if (count == 0) editor.clear_selections();
else editor.keep_selection(count-1); } },
{ { Key::Modifiers::Alt, ' ' }, [](Editor& editor, int count) { if (count == 0) editor.clear_selections();
else editor.remove_selection(count-1); } },
{ { Key::Modifiers::None, 'w' }, [](Editor& editor, int count) { do { editor.select(select_to_next_word<false>); } while(--count > 0); } },
{ { Key::Modifiers::None, 'e' }, [](Editor& editor, int count) { do { editor.select(select_to_next_word_end<false>); } while(--count > 0); } },
{ { Key::Modifiers::None, 'b' }, [](Editor& editor, int count) { do { editor.select(select_to_previous_word<false>); } while(--count > 0); } },
{ { Key::Modifiers::None, 'W' }, [](Editor& editor, int count) { do { editor.select(select_to_next_word<false>, true); } while(--count > 0); } },
{ { Key::Modifiers::None, 'E' }, [](Editor& editor, int count) { do { editor.select(select_to_next_word_end<false>, true); } while(--count > 0); } },
{ { Key::Modifiers::None, 'B' }, [](Editor& editor, int count) { do { editor.select(select_to_previous_word<false>, true); } while(--count > 0); } },
{ { Key::Modifiers::None, 'x' }, [](Editor& editor, int count) { do { editor.select(select_line, false); } while(--count > 0); } },
{ { Key::Modifiers::None, 'X' }, [](Editor& editor, int count) { do { editor.select(select_line, true); } while(--count > 0); } },
{ { Key::Modifiers::None, 'm' }, [](Editor& editor, int count) { editor.select(select_matching); } },
{ { Key::Modifiers::None, 'M' }, [](Editor& editor, int count) { editor.select(select_matching, true); } },
{ { Key::Modifiers::None, '/' }, [](Editor& editor, int count) { do_search<false>(editor); } },
{ { Key::Modifiers::None, '?' }, [](Editor& editor, int count) { do_search<true>(editor); } },
{ { Key::Modifiers::None, 'n' }, [](Editor& editor, int count) { do_search_next<false>(editor); } },
{ { Key::Modifiers::None, 'N' }, [](Editor& editor, int count) { do_search_next<true>(editor); } },
{ { Key::Modifiers::None, 'u' }, [](Editor& editor, int count) { do { if (not editor.undo()) { print_status("nothing left to undo"); break; } } while(--count > 0); } },
{ { Key::Modifiers::None, 'U' }, [](Editor& editor, int count) { do { if (not editor.redo()) { print_status("nothing left to redo"); break; } } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'i' }, do_select_object<true> },
{ { Key::Modifiers::Alt, 'a' }, do_select_object<false> },
{ { Key::Modifiers::Alt, 't' }, [](Editor& editor, int count) { editor.select(std::bind(select_to_reverse, _1, get_key().key, count, false)); } },
{ { Key::Modifiers::Alt, 'f' }, [](Editor& editor, int count) { editor.select(std::bind(select_to_reverse, _1, get_key().key, count, true)); } },
{ { Key::Modifiers::Alt, 'T' }, [](Editor& editor, int count) { editor.select(std::bind(select_to_reverse, _1, get_key().key, count, false), true); } },
{ { Key::Modifiers::Alt, 'F' }, [](Editor& editor, int count) { editor.select(std::bind(select_to_reverse, _1, get_key().key, count, true), true); } },
{ { Key::Modifiers::Alt, 'w' }, [](Editor& editor, int count) { do { editor.select(select_to_next_word<true>); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'e' }, [](Editor& editor, int count) { do { editor.select(select_to_next_word_end<true>); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'b' }, [](Editor& editor, int count) { do { editor.select(select_to_previous_word<true>); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'W' }, [](Editor& editor, int count) { do { editor.select(select_to_next_word<true>, true); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'E' }, [](Editor& editor, int count) { do { editor.select(select_to_next_word_end<true>, true); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'B' }, [](Editor& editor, int count) { do { editor.select(select_to_previous_word<true>, true); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'l' }, [](Editor& editor, int count) { do { editor.select(select_to_eol, false); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'L' }, [](Editor& editor, int count) { do { editor.select(select_to_eol, true); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'h' }, [](Editor& editor, int count) { do { editor.select(select_to_eol_reverse, false); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'H' }, [](Editor& editor, int count) { do { editor.select(select_to_eol_reverse, true); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 's' }, do_split_regex },
{ { Key::Modifiers::Alt, 'j' }, do_join },
{ { Key::Modifiers::Alt, 'x' }, [](Editor& editor, int count) { editor.select(select_whole_lines); } },
};
}
void run_unit_tests();
int main(int argc, char* argv[])
{
GlobalOptionManager option_manager;
GlobalHookManager hook_manager;
ShellManager shell_manager;
CommandManager command_manager;
BufferManager buffer_manager;
RegisterManager register_manager;
HighlighterRegistry highlighter_registry;
FilterRegistry filter_registry;
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(); });
register_manager.register_dynamic_register('%', [&]() { return std::vector<String>(1, main_context.buffer().name()); });
register_manager.register_dynamic_register('.', [&]() { return main_context.window().selections_content(); });
register_commands();
register_highlighters();
register_filters();
try
{
NCursesClient client;
current_client = &client;
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");
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());
}
current_client->draw_window(main_context.window());
int count = 0;
while(not quit_requested)
{
try
{
Key key = get_key();
if (key.modifiers == Key::Modifiers::None and isdigit(key.key))
count = count * 10 + key.key - '0';
else
{
auto it = keymap.find(key);
if (it != keymap.end())
{
it->second(main_context.window(), count);
current_client->draw_window(main_context.window());
}
count = 0;
}
}
catch (Kakoune::runtime_error& error)
{
print_status(error.description());
}
}
}
catch (Kakoune::exception& error)
{
puts("uncaught exception:\n");
puts(error.description().c_str());
return -1;
}
main_context = Context();
return 0;
}