kakoune/src/main.cc

547 lines
22 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 "event_manager.hh"
#include "context.hh"
#include "ncurses.hh"
#include "string.hh"
#include "color_registry.hh"
#include <unordered_map>
#include <sys/types.h>
#include <sys/wait.h>
using namespace Kakoune;
using namespace std::placeholders;
namespace Kakoune
{
bool quit_requested = false;
template<InsertMode mode>
void do_insert(Context& context)
{
context.client().insert(context, mode);
}
void do_repeat_insert(Context& context)
{
context.client().repeat_last_insert(context);
}
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.editor().select(target);
if (context.has_window())
context.window().center_selection();
}
else
context.client().on_next_key([](const Key& key, Context& context) {
if (key.modifiers != Key::Modifiers::None)
return;
Editor& editor = context.editor();
switch (key.key)
{
case 'g':
case 't':
editor.select(editor.buffer().begin());
break;
case 'l':
case 'L':
editor.select(select_to_eol, mode);
break;
case 'h':
case 'H':
editor.select(select_to_eol_reverse, mode);
break;
case 'b':
{
const Buffer& buf = editor.buffer();
editor.select(buf.iterator_at_line_begin(buf.line_count() - 1));
break;
}
}
});
}
void do_replace_with_char(Context& context)
{
context.client().on_next_key([](const Key& key, Context& context) {
context.editor().replace(String() + key.key);
});
}
void do_command(Context& context)
{
context.client().prompt(
":", std::bind(&CommandManager::complete, &CommandManager::instance(), _1, _2, _3),
[](const String& cmdline, Context& context) { CommandManager::instance().execute(cmdline, context); },
context);
}
void do_pipe(Context& context)
{
context.client().prompt("|", complete_nothing,
[](const String& cmdline, Context& context)
{
Editor& editor = context.editor();
std::vector<String> strings;
for (auto& sel : const_cast<const Editor&>(context.editor()).selections())
strings.push_back(ShellManager::instance().pipe(String(sel.begin(), sel.end()),
cmdline, context, {}, {}));
editor.replace(strings);
}, context);
}
template<SelectMode mode>
void do_search(Context& context)
{
context.client().prompt("/", complete_nothing,
[](const String& str, Context& context) {
String ex = str;
if (ex.empty())
ex = RegisterManager::instance()['/'].values(context)[0];
else
RegisterManager::instance()['/'] = ex;
context.editor().select(std::bind(select_next_match, _1, ex), mode);
}, context);
}
template<SelectMode mode>
void do_search_next(Context& context)
{
const String& ex = RegisterManager::instance()['/'].values(context)[0];
if (not ex.empty())
context.editor().select(std::bind(select_next_match, _1, ex), mode);
else
context.print_status("no search pattern");
}
void do_yank(Context& context)
{
RegisterManager::instance()['"'] = context.editor().selections_content();
}
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::Change>(context);
}
enum class PasteMode
{
Before,
After,
Replace
};
template<PasteMode paste_mode>
void do_paste(Context& context)
{
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]);
}
}
void do_select_regex(Context& context)
{
context.client().prompt("select: ", complete_nothing,
[](const String& ex, Context& context)
{ context.editor().multi_select(std::bind(select_all_matches, _1, ex)); },
context);
}
void do_split_regex(Context& context)
{
context.client().prompt("select: ", complete_nothing,
[](const String& ex, Context& context)
{ context.editor().multi_select(std::bind(split_selection, _1, ex)); },
context);
}
void do_join(Context& context)
{
Editor& editor = context.editor();
editor.select(select_whole_lines);
editor.select(select_to_eol, SelectMode::Extend);
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(Context& context)
{
context.client().on_next_key(
[](const Key& key, 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) },
};
auto it = key_to_selector.find(key);
if (it != key_to_selector.end())
context.editor().select(it->second);
});
}
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();
BufferCoord position = window.position();
BufferIterator cursor_pos;
if (key == Key::PageUp)
{
position.line -= (window.dimensions().line - 2);
cursor_pos = buffer.iterator_at(position);
}
else if (key == Key::PageDown)
{
position.line += (window.dimensions().line - 2);
cursor_pos = buffer.iterator_at(position + BufferCoord{window.dimensions().line - 1, 0});
}
window.select(cursor_pos);
window.set_position(position);
}
template<typename T>
class Repeated
{
public:
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>
Repeated<T> repeated(T func) { return Repeated<T>(func); }
namespace SelectFlags
{
enum Type
{
None = 0,
Reverse = 1,
Inclusive = 2,
Extend = 4
};
}
template<int flags>
void select_to_next_char(Context& context)
{
int param = context.numeric_param();
context.client().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);
});
}
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)
throw runtime_error("unable do determine runtime directory");
return String(buffer, ptr);
}
std::unordered_map<Key, std::function<void (Context& context)>> keymap =
{
{ { Key::Modifiers::None, 'h' }, [](Context& context) { context.editor().move_selections({ 0, -std::max(context.numeric_param(),1) }); } },
{ { Key::Modifiers::None, 'j' }, [](Context& context) { context.editor().move_selections({ std::max(context.numeric_param(),1), 0 }); } },
{ { Key::Modifiers::None, 'k' }, [](Context& context) { context.editor().move_selections({ -std::max(context.numeric_param(),1), 0 }); } },
{ { Key::Modifiers::None, 'l' }, [](Context& context) { context.editor().move_selections({ 0, std::max(context.numeric_param(),1) }); } },
{ { Key::Modifiers::None, 'H' }, [](Context& context) { context.editor().move_selections({ 0, -std::max(context.numeric_param(),1) }, SelectMode::Extend); } },
{ { Key::Modifiers::None, 'J' }, [](Context& context) { context.editor().move_selections({ std::max(context.numeric_param(),1), 0 }, SelectMode::Extend); } },
{ { Key::Modifiers::None, 'K' }, [](Context& context) { context.editor().move_selections({ -std::max(context.numeric_param(),1), 0 }, SelectMode::Extend); } },
{ { Key::Modifiers::None, 'L' }, [](Context& context) { context.editor().move_selections({ 0, std::max(context.numeric_param(),1) }, SelectMode::Extend); } },
{ { 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> },
{ { 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> },
{ { 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> },
{ { Key::Modifiers::None, 's' }, do_select_regex },
{ { Key::Modifiers::None, '.' }, do_repeat_insert },
{ { Key::Modifiers::None, '%' }, [](Context& context) { context.editor().clear_selections(); context.editor().select(select_whole_buffer); } },
{ { 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().clear_selections();
else context.editor().remove_selection(count-1); } },
{ { Key::Modifiers::None, 'w' }, repeated([](Context& context) { context.editor().select(select_to_next_word<false>); }) },
{ { Key::Modifiers::None, 'e' }, repeated([](Context& context) { context.editor().select(select_to_next_word_end<false>); }) },
{ { Key::Modifiers::None, 'b' }, repeated([](Context& context) { context.editor().select(select_to_previous_word<false>); }) },
{ { Key::Modifiers::None, 'W' }, repeated([](Context& context) { context.editor().select(select_to_next_word<false>, SelectMode::Extend); }) },
{ { Key::Modifiers::None, 'E' }, repeated([](Context& context) { context.editor().select(select_to_next_word_end<false>, SelectMode::Extend); }) },
{ { Key::Modifiers::None, 'B' }, repeated([](Context& context) { context.editor().select(select_to_previous_word<false>, SelectMode::Extend); }) },
{ { Key::Modifiers::None, 'x' }, repeated([](Context& context) { context.editor().select(select_line, SelectMode::Replace); }) },
{ { Key::Modifiers::None, 'X' }, repeated([](Context& context) { context.editor().select(select_line, SelectMode::Extend); }) },
{ { Key::Modifiers::None, 'm' }, [](Context& context) { context.editor().select(select_matching); } },
{ { Key::Modifiers::None, 'M' }, [](Context& context) { context.editor().select(select_matching, SelectMode::Extend); } },
{ { Key::Modifiers::None, '/' }, do_search<SelectMode::Replace> },
{ { Key::Modifiers::None, '?' }, do_search<SelectMode::Extend> },
{ { Key::Modifiers::None, 'n' }, do_search_next<SelectMode::Replace> },
{ { Key::Modifiers::None, 'N' }, do_search_next<SelectMode::Extend> },
{ { 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"); } }) },
{ { Key::Modifiers::Alt, 'i' }, do_select_object<true> },
{ { Key::Modifiers::Alt, 'a' }, do_select_object<false> },
{ { Key::Modifiers::Alt, 'w' }, repeated([](Context& context) { context.editor().select(select_to_next_word<true>); }) },
{ { Key::Modifiers::Alt, 'e' }, repeated([](Context& context) { context.editor().select(select_to_next_word_end<true>); }) },
{ { Key::Modifiers::Alt, 'b' }, repeated([](Context& context) { context.editor().select(select_to_previous_word<true>); }) },
{ { Key::Modifiers::Alt, 'W' }, repeated([](Context& context) { context.editor().select(select_to_next_word<true>, SelectMode::Extend); }) },
{ { Key::Modifiers::Alt, 'E' }, repeated([](Context& context) { context.editor().select(select_to_next_word_end<true>, SelectMode::Extend); }) },
{ { Key::Modifiers::Alt, 'B' }, repeated([](Context& context) { context.editor().select(select_to_previous_word<true>, SelectMode::Extend); }) },
{ { Key::Modifiers::Alt, 'l' }, repeated([](Context& context) { context.editor().select(select_to_eol, SelectMode::Replace); }) },
{ { Key::Modifiers::Alt, 'L' }, repeated([](Context& context) { context.editor().select(select_to_eol, SelectMode::Extend); }) },
{ { Key::Modifiers::Alt, 'h' }, repeated([](Context& context) { context.editor().select(select_to_eol_reverse, SelectMode::Replace); }) },
{ { Key::Modifiers::Alt, 'H' }, repeated([](Context& context) { context.editor().select(select_to_eol_reverse, SelectMode::Extend); }) },
{ { Key::Modifiers::Alt, 's' }, do_split_regex },
{ { Key::Modifiers::Alt, 'j' }, do_join },
{ { Key::Modifiers::Alt, 'x' }, [](Context& context) { context.editor().select(select_whole_lines); } },
{ { Key::Modifiers::Alt, 'c' }, [](Context& context) { if (context.has_window()) context.window().center_selection(); } },
{ { Key::Modifiers::None, Key::PageUp }, do_scroll<Key::PageUp> },
{ { Key::Modifiers::None, Key::PageDown }, do_scroll<Key::PageDown> },
};
}
void run_unit_tests();
int main(int argc, char* argv[])
{
EventManager event_manager;
GlobalOptionManager option_manager;
GlobalHookManager hook_manager;
ShellManager shell_manager;
CommandManager command_manager;
BufferManager buffer_manager;
RegisterManager register_manager;
HighlighterRegistry highlighter_registry;
FilterRegistry filter_registry;
ColorRegistry color_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.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.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(); });
for (size_t i = 0; i < 10; ++i)
{
register_manager.register_dynamic_register('0'+i,
[i](const Context& context) {
std::vector<String> result;
for (auto& sel_and_cap : context.editor().selections())
result.emplace_back(i < sel_and_cap.captures.size() ? sel_and_cap.captures[i] : "");
return result;
});
}
register_commands();
register_highlighters();
register_filters();
try
{
Client client;
NCursesUI ui;
Context context(client);
context.change_ui(ui);
try
{
Context initialisation_context;
command_manager.execute("source " + runtime_directory() + "/kakrc",
initialisation_context);
}
catch (Kakoune::runtime_error& error)
{
context.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)
{
String cmd = "edit ";
for (int i = 1; i < argc; ++i)
cmd += String(" ") + argv[i];
command_manager.execute(cmd, context);
}
else
{
auto buffer = new Buffer("*scratch*", Buffer::Type::Scratch);
context.change_editor(*buffer->get_or_create_window());
}
event_manager.watch(0, [&](int) { client.handle_next_input(context); });
context.draw_ifn();
while(not quit_requested)
{
try
{
event_manager.handle_next_events();
}
catch (Kakoune::runtime_error& error)
{
context.print_status(error.description());
}
}
}
catch (Kakoune::exception& error)
{
puts("uncaught exception:\n");
puts(error.description().c_str());
return -1;
}
return 0;
}