kakoune/src/main.cc

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#include "window.hh"
#include "buffer.hh"
#include "file.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 "hooks_manager.hh"
#include "keys.hh"
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#include <unordered_map>
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#include <map>
#include <sstream>
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#include <boost/regex.hpp>
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#include <ncurses.h>
#include <sys/types.h>
#include <sys/wait.h>
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using namespace Kakoune;
using namespace std::placeholders;
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void set_attribute(int attribute, bool on)
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{
if (on)
attron(attribute);
else
attroff(attribute);
}
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int nc_color(Color color)
{
switch (color)
{
case Color::Black: return COLOR_BLACK;
case Color::Red: return COLOR_RED;
case Color::Green: return COLOR_GREEN;
case Color::Yellow: return COLOR_YELLOW;
case Color::Blue: return COLOR_BLUE;
case Color::Magenta: return COLOR_MAGENTA;
case Color::Cyan: return COLOR_CYAN;
case Color::White: return COLOR_WHITE;
case Color::Default:
default:
return COLOR_BLACK;
}
}
void set_color(Color fg_color, Color bg_color)
{
static std::map<std::pair<Color, Color>, int> colorpairs;
static int current_pair = -1;
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static int next_pair = 1;
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if (current_pair != -1)
attroff(COLOR_PAIR(current_pair));
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if (fg_color == Color::Default and bg_color == Color::Default)
return;
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std::pair<Color, Color> colorpair(fg_color, bg_color);
auto it = colorpairs.find(colorpair);
if (it != colorpairs.end())
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{
current_pair = it->second;
attron(COLOR_PAIR(it->second));
}
else
{
init_pair(next_pair, nc_color(fg_color), nc_color(bg_color));
colorpairs[colorpair] = next_pair;
current_pair = next_pair;
attron(COLOR_PAIR(next_pair));
++next_pair;
}
}
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void draw_window(Window& window)
{
int max_x,max_y;
getmaxyx(stdscr, max_y, max_x);
max_y -= 1;
window.set_dimensions(DisplayCoord(max_y, max_x));
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window.update_display_buffer();
DisplayCoord position;
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for (const DisplayAtom& atom : window.display_buffer())
{
assert(position == atom.coord());
const std::string content = atom.content();
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set_attribute(A_UNDERLINE, atom.attribute() & Underline);
set_attribute(A_REVERSE, atom.attribute() & Reverse);
set_attribute(A_BLINK, atom.attribute() & Blink);
set_attribute(A_BOLD, atom.attribute() & Bold);
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set_color(atom.fg_color(), atom.bg_color());
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size_t pos = 0;
size_t end;
while (true)
{
move(position.line, position.column);
clrtoeol();
end = content.find_first_of('\n', pos);
std::string line = content.substr(pos, end - pos);
addstr(line.c_str());
if (end != std::string::npos)
{
addch(' ');
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position.line = position.line + 1;
position.column = 0;
pos = end + 1;
if (position.line >= max_y)
break;
}
else
{
position.column += line.length();
break;
}
}
if (position.line >= max_y)
break;
}
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set_attribute(A_UNDERLINE, 0);
set_attribute(A_REVERSE, 0);
set_attribute(A_BLINK, 0);
set_attribute(A_BOLD, 0);
set_color(Color::Blue, Color::Black);
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while (++position.line < max_y)
{
move(position.line, 0);
clrtoeol();
addch('~');
}
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set_color(Color::Cyan, Color::Black);
std::string status_line = window.status_line();
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static int last_status_length = 0;
move(max_y, max_x - last_status_length);
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clrtoeol();
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move(max_y, max_x - status_line.length());
addstr(status_line.c_str());
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last_status_length = status_line.length();
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const DisplayCoord& cursor_position = window.cursor_position();
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move(cursor_position.line, cursor_position.column);
}
void init_ncurses()
{
initscr();
cbreak();
noecho();
nonl();
intrflush(stdscr, false);
keypad(stdscr, true);
curs_set(2);
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start_color();
ESCDELAY=25;
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}
void deinit_ncurses()
{
endwin();
}
struct prompt_aborted {};
std::string ncurses_prompt(const std::string& text, Completer completer = complete_nothing)
{
int max_x, max_y;
getmaxyx(stdscr, max_y, max_x);
move(max_y-1, 0);
addstr(text.c_str());
clrtoeol();
std::string result;
size_t cursor_pos = 0;
Completions completions;
int current_completion = -1;
std::string text_before_completion;
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while (true)
{
char c = getch();
switch (c)
{
case '\r':
return result;
case 4:
if (cursor_pos > 0)
--cursor_pos;
break;
case 5:
if (cursor_pos < result.length())
++cursor_pos;
break;
case 7:
if (cursor_pos != 0)
{
result = result.substr(0, cursor_pos - 1)
+ result.substr(cursor_pos, std::string::npos);
--cursor_pos;
}
current_completion = -1;
break;
case 27:
throw prompt_aborted();
case '\t':
{
if (current_completion == -1)
{
completions = completer(result, cursor_pos);
if (completions.candidates.empty())
break;
text_before_completion = result.substr(completions.start,
completions.end - completions.start);
}
++current_completion;
std::string completion;
if (current_completion >= completions.candidates.size())
{
if (current_completion == completions.candidates.size() and
std::find(completions.candidates.begin(), completions.candidates.end(), text_before_completion) == completions.candidates.end())
completion = text_before_completion;
else
{
current_completion = 0;
completion = completions.candidates[0];
}
}
else
completion = completions.candidates[current_completion];
move(max_y-1, text.length());
result = result.substr(0, completions.start) + completion;
cursor_pos = completions.start + completion.length();
break;
}
default:
current_completion = -1;
result = result.substr(0, cursor_pos) + c + result.substr(cursor_pos, std::string::npos);
++cursor_pos;
}
move(max_y - 1, text.length());
clrtoeol();
addstr(result.c_str());
move(max_y - 1, text.length() + cursor_pos);
refresh();
}
return result;
}
static std::function<std::string (const std::string&, Completer)> prompt_func = ncurses_prompt;
std::string prompt(const std::string& text, Completer completer = complete_nothing)
{
return prompt_func(text, completer);
}
void print_status(const std::string& status)
{
int x,y;
getmaxyx(stdscr, y, x);
move(y-1, 0);
clrtoeol();
addstr(status.c_str());
}
struct InsertSequence
{
IncrementalInserter::Mode mode;
std::string keys;
InsertSequence() : mode(IncrementalInserter::Mode::Insert) {}
};
InsertSequence last_insert_sequence;
bool insert_char(IncrementalInserter& inserter, char c)
{
switch (c)
{
case 27:
return false;
case 2:
c = getch();
if (c >= '0' and c <= '9')
inserter.insert_capture(c - '0');
break;
case 4:
inserter.move_cursor({0, -1});
break;
case 5:
inserter.move_cursor({0, 1});
break;
case 7:
inserter.erase();
break;
case '\r':
c = '\n';
default:
inserter.insert(std::string() + c);
}
return true;
}
void do_insert(Window& window, IncrementalInserter::Mode mode)
{
last_insert_sequence.mode = mode;
last_insert_sequence.keys.clear();
IncrementalInserter inserter(window, mode);
draw_window(window);
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while(true)
{
char c = getch();
if (not insert_char(inserter, c))
return;
last_insert_sequence.keys += c;
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draw_window(window);
}
}
void do_repeat_insert(Window& window, int count)
{
IncrementalInserter inserter(window, last_insert_sequence.mode);
for (char c : last_insert_sequence.keys)
{
insert_char(inserter, c);
}
draw_window(window);
}
template<bool append>
void do_go(Window& window, int count)
{
if (count != 0)
{
BufferIterator target =
window.buffer().iterator_at(BufferCoord(count-1, 0));
window.move_cursor_to(target);
}
else
{
char c = getch();
switch (c)
{
case 'g':
case 't':
{
BufferIterator target =
window.buffer().iterator_at(BufferCoord(0,0));
window.move_cursor_to(target);
break;
}
case 'l':
case 'L':
window.select(select_to_eol, append);
break;
case 'h':
case 'H':
window.select(select_to_eol_reverse, append);
break;
case 'b':
{
BufferIterator target = window.buffer().iterator_at(
BufferCoord(window.buffer().line_count() - 1, 0));
window.move_cursor_to(target);
break;
}
}
}
}
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Context main_context;
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Buffer* open_or_create(const std::string& filename)
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{
Buffer* buffer = NULL;
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try
{
buffer = create_buffer_from_file(filename);
}
catch (file_not_found& what)
{
print_status("new file " + filename);
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buffer = new Buffer(filename, Buffer::Type::File);
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}
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return buffer;
}
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void edit(const CommandParameters& params, const Context& context)
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{
if (params.size() != 1)
throw wrong_argument_count();
std::string filename = params[0];
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main_context = Context(*open_or_create(filename)->get_or_create_window());
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}
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void write_buffer(const CommandParameters& params, const Context& context)
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{
if (params.size() > 1)
throw wrong_argument_count();
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Buffer& buffer = context.window->buffer();
std::string filename = params.empty() ? buffer.name() : params[0];
write_buffer_to_file(buffer, filename);
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buffer.notify_saved();
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}
bool quit_requested = false;
template<bool force>
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void quit(const CommandParameters& params, const Context& context)
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{
if (params.size() != 0)
throw wrong_argument_count();
if (not force)
{
for (auto& buffer : BufferManager::instance())
{
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if (buffer.type() == Buffer::Type::File and buffer.is_modified())
{
print_status("modified buffer remaining");
return;
}
}
}
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quit_requested = true;
}
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template<bool force>
void write_and_quit(const CommandParameters& params, const Context& context)
{
write_buffer(params, context);
quit<force>(CommandParameters(), context);
}
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void show_buffer(const CommandParameters& params, const Context& context)
{
if (params.size() != 1)
throw wrong_argument_count();
Buffer* buffer = BufferManager::instance().get_buffer(params[0]);
if (not buffer)
print_status("buffer " + params[0] + " does not exists");
else
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main_context = Context(*buffer->get_or_create_window());
}
void add_highlighter(const CommandParameters& params, const Context& context)
{
if (params.size() < 1)
throw wrong_argument_count();
try
{
HighlighterRegistry& registry = HighlighterRegistry::instance();
HighlighterParameters highlighter_params(params.begin()+1, params.end());
registry.add_highlighter_to_window(*context.window, params[0],
highlighter_params);
}
catch (runtime_error& err)
{
print_status("error: " + err.description());
}
}
void rm_highlighter(const CommandParameters& params, const Context& context)
{
if (params.size() != 1)
throw wrong_argument_count();
context.window->remove_highlighter(params[0]);
}
void add_filter(const CommandParameters& params, const Context& context)
{
if (params.size() < 1)
throw wrong_argument_count();
try
{
FilterRegistry& registry = FilterRegistry::instance();
FilterParameters filter_params(params.begin()+1, params.end());
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registry.add_filter_to_window(*context.window, params[0],
filter_params);
}
catch (runtime_error& err)
{
print_status("error: " + err.description());
}
}
void rm_filter(const CommandParameters& params, const Context& context)
{
if (params.size() != 1)
throw wrong_argument_count();
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context.window->remove_filter(params[0]);
}
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void add_hook(const CommandParameters& params, const Context& context)
{
if (params.size() < 3)
throw wrong_argument_count();
CommandParameters hook_params(params.begin()+2, params.end());
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HooksManager::instance().add_hook(
params[0],
[=](const std::string& param, const Context& context) {
if (boost::regex_match(param, boost::regex(params[1])))
CommandManager::instance().execute(hook_params, context);
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});
}
void exec_commands_in_file(const CommandParameters& params,
const Context& context)
{
if (params.size() != 1)
throw wrong_argument_count();
std::string file_content = read_file(params[0]);
CommandManager& cmd_manager = CommandManager::instance();
size_t pos = 0;
bool cat_with_previous = false;
std::string command_line;
while (true)
{
if (not cat_with_previous)
command_line.clear();
size_t end_pos = file_content.find_first_of('\n', pos);
if (end_pos != pos and end_pos != std::string::npos and
file_content[end_pos - 1] == '\\')
{
command_line += file_content.substr(pos, end_pos - pos - 1);
cat_with_previous = true;
}
else
{
command_line += file_content.substr(pos, end_pos - pos);
cmd_manager.execute(command_line, context);
cat_with_previous = false;
}
if (end_pos == std::string::npos)
{
if (cat_with_previous)
print_status("while executing commands in \"" + params[0] +
"\": last command not complete");
break;
}
pos = end_pos + 1;
}
}
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void do_command()
{
try
{
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auto cmdline = prompt(":", std::bind(&CommandManager::complete,
&CommandManager::instance(),
_1, _2));
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CommandManager::instance().execute(cmdline, main_context);
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}
catch (prompt_aborted&) {}
}
void do_pipe(Window& window, int count)
{
try
{
auto cmdline = prompt("|", complete_nothing);
window.buffer().begin_undo_group();
for (auto& sel : const_cast<const Window&>(window).selections())
{
int write_pipe[2];
int read_pipe[2];
pipe(write_pipe);
pipe(read_pipe);
if (pid_t pid = fork())
{
close(write_pipe[0]);
close(read_pipe[1]);
std::string content = window.buffer().string(sel.begin(), sel.end());
write(write_pipe[1], content.c_str(), content.size());
close(write_pipe[1]);
std::string new_content;
char buffer[1024];
while (size_t size = read(read_pipe[0], buffer, 1024))
{
new_content += std::string(buffer, buffer+size);
}
close(read_pipe[0]);
waitpid(pid, NULL, 0);
window.buffer().modify(Modification::make_erase(sel.begin(), sel.end()));
window.buffer().modify(Modification::make_insert(sel.begin(), new_content));
}
else
{
close(write_pipe[1]);
close(read_pipe[0]);
dup2(read_pipe[1], 1);
dup2(write_pipe[0], 0);
execlp("sh", "sh", "-c", cmdline.c_str(), NULL);
}
}
window.buffer().end_undo_group();
}
catch (prompt_aborted&) {}
}
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void do_search(Window& window)
{
try
{
std::string ex = prompt("/");
if (ex.empty())
ex = RegisterManager::instance()['/'];
else
RegisterManager::instance()['/'] = ex;
window.select(std::bind(select_next_match, _1, ex));
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}
catch (prompt_aborted&) {}
}
void do_search_next(Window& window)
{
std::string& ex = RegisterManager::instance()['/'];
if (not ex.empty())
window.select(std::bind(select_next_match, _1, ex));
else
print_status("no search pattern");
}
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void do_yank(Window& window, int count)
{
RegisterManager::instance()['"'] = window.selection_content();
}
void do_erase(Window& window, int count)
{
RegisterManager::instance()['"'] = window.selection_content();
window.erase();
}
void do_change(Window& window, int count)
{
RegisterManager::instance()['"'] = window.selection_content();
do_insert(window, IncrementalInserter::Mode::Change);
}
template<bool append>
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void do_paste(Window& window, int count)
{
if (append)
window.append(RegisterManager::instance()['"']);
else
window.insert(RegisterManager::instance()['"']);
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}
void do_select_regex(Window& window, int count)
{
try
{
std::string ex = prompt("select: ");
window.multi_select(std::bind(select_all_matches, _1, ex));
}
catch (prompt_aborted&) {}
}
void do_split_regex(Window& window, int count)
{
try
{
std::string ex = prompt("split: ");
window.multi_select(std::bind(split_selection, _1, ex));
}
catch (prompt_aborted&) {}
}
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void do_join(Window& window, int count)
{
window.multi_select(select_whole_lines);
window.select(select_to_eol, true);
window.multi_select(std::bind(select_all_matches, _1, "\n\\h*"));
window.replace(" ");
window.clear_selections();
window.move_cursor({0, -1});
}
template<bool inside>
void do_select_surrounding(Window& window, int count)
{
char id = getch();
static const std::unordered_map<char, std::pair<char, char>> id_to_matching =
{
{ '(', { '(', ')' } },
{ ')', { '(', ')' } },
{ 'b', { '(', ')' } },
{ '{', { '{', '}' } },
{ '}', { '{', '}' } },
{ 'B', { '{', '}' } },
{ '[', { '[', ']' } },
{ ']', { '[', ']' } },
{ '<', { '<', '>' } },
{ '>', { '<', '>' } }
};
auto matching = id_to_matching.find(id);
if (matching != id_to_matching.end())
window.select(std::bind(select_surrounding, _1, matching->second, inside));
}
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std::unordered_map<Key, std::function<void (Window& window, int count)>> keymap =
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{
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{ { Key::Modifiers::None, 'h' }, [](Window& window, int count) { window.move_cursor(DisplayCoord(0, -std::max(count,1))); } },
{ { Key::Modifiers::None, 'j' }, [](Window& window, int count) { window.move_cursor(DisplayCoord( std::max(count,1), 0)); } },
{ { Key::Modifiers::None, 'k' }, [](Window& window, int count) { window.move_cursor(DisplayCoord(-std::max(count,1), 0)); } },
{ { Key::Modifiers::None, 'l' }, [](Window& window, int count) { window.move_cursor(DisplayCoord(0, std::max(count,1))); } },
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{ { Key::Modifiers::None, 'H' }, [](Window& window, int count) { window.move_cursor(DisplayCoord(0, -std::max(count,1)), true); } },
{ { Key::Modifiers::None, 'J' }, [](Window& window, int count) { window.move_cursor(DisplayCoord( std::max(count,1), 0), true); } },
{ { Key::Modifiers::None, 'K' }, [](Window& window, int count) { window.move_cursor(DisplayCoord(-std::max(count,1), 0), true); } },
{ { Key::Modifiers::None, 'L' }, [](Window& window, int count) { window.move_cursor(DisplayCoord(0, std::max(count,1)), true); } },
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{ { Key::Modifiers::None, 't' }, [](Window& window, int count) { window.select(std::bind(select_to, _1, getch(), count, false)); } },
{ { Key::Modifiers::None, 'f' }, [](Window& window, int count) { window.select(std::bind(select_to, _1, getch(), count, true)); } },
{ { Key::Modifiers::None, 'T' }, [](Window& window, int count) { window.select(std::bind(select_to, _1, getch(), count, false), true); } },
{ { Key::Modifiers::None, 'F' }, [](Window& window, int count) { window.select(std::bind(select_to, _1, getch(), count, true), true); } },
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{ { Key::Modifiers::None, 'd' }, do_erase },
{ { Key::Modifiers::None, 'c' }, do_change },
{ { Key::Modifiers::None, 'i' }, [](Window& window, int count) { do_insert(window, IncrementalInserter::Mode::Insert); } },
{ { Key::Modifiers::None, 'I' }, [](Window& window, int count) { do_insert(window, IncrementalInserter::Mode::InsertAtLineBegin); } },
{ { Key::Modifiers::None, 'a' }, [](Window& window, int count) { do_insert(window, IncrementalInserter::Mode::Append); } },
{ { Key::Modifiers::None, 'A' }, [](Window& window, int count) { do_insert(window, IncrementalInserter::Mode::AppendAtLineEnd); } },
{ { Key::Modifiers::None, 'o' }, [](Window& window, int count) { do_insert(window, IncrementalInserter::Mode::OpenLineBelow); } },
{ { Key::Modifiers::None, 'O' }, [](Window& window, int count) { do_insert(window, 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<true> },
{ { Key::Modifiers::None, 'P' }, do_paste<false> },
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{ { Key::Modifiers::None, 's' }, do_select_regex },
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{ { Key::Modifiers::None, '.' }, do_repeat_insert },
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{ { Key::Modifiers::None, '%' }, [](Window& window, int count) { window.select([](const BufferIterator& cursor)
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{ return Selection(cursor.buffer().begin(), cursor.buffer().end()-1); }); } },
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{ { Key::Modifiers::None, ':' }, [](Window& window, int count) { do_command(); } },
{ { Key::Modifiers::None, '|' }, do_pipe },
{ { Key::Modifiers::None, ' ' }, [](Window& window, int count) { if (count == 0) window.clear_selections();
else window.keep_selection(count-1); } },
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{ { Key::Modifiers::None, 'w' }, [](Window& window, int count) { do { window.select(select_to_next_word); } while(--count > 0); } },
{ { Key::Modifiers::None, 'e' }, [](Window& window, int count) { do { window.select(select_to_next_word_end); } while(--count > 0); } },
{ { Key::Modifiers::None, 'b' }, [](Window& window, int count) { do { window.select(select_to_previous_word); } while(--count > 0); } },
{ { Key::Modifiers::None, 'W' }, [](Window& window, int count) { do { window.select(select_to_next_word, true); } while(--count > 0); } },
{ { Key::Modifiers::None, 'E' }, [](Window& window, int count) { do { window.select(select_to_next_word_end, true); } while(--count > 0); } },
{ { Key::Modifiers::None, 'B' }, [](Window& window, int count) { do { window.select(select_to_previous_word, true); } while(--count > 0); } },
{ { Key::Modifiers::None, 'x' }, [](Window& window, int count) { do { window.select(select_line, false); } while(--count > 0); } },
{ { Key::Modifiers::None, 'X' }, [](Window& window, int count) { do { window.select(select_line, true); } while(--count > 0); } },
{ { Key::Modifiers::None, 'm' }, [](Window& window, int count) { window.select(select_matching); } },
{ { Key::Modifiers::None, 'M' }, [](Window& window, int count) { window.select(select_matching, true); } },
{ { Key::Modifiers::None, '/' }, [](Window& window, int count) { do_search(window); } },
{ { Key::Modifiers::None, 'n' }, [](Window& window, int count) { do_search_next(window); } },
{ { Key::Modifiers::None, 'u' }, [](Window& window, int count) { do { if (not window.undo()) { print_status("nothing left to undo"); break; } } while(--count > 0); } },
{ { Key::Modifiers::None, 'U' }, [](Window& window, int count) { do { if (not window.redo()) { print_status("nothing left to redo"); break; } } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'i' }, do_select_surrounding<true> },
{ { Key::Modifiers::Alt, 'a' }, do_select_surrounding<false> },
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{ { Key::Modifiers::Alt, 't' }, [](Window& window, int count) { window.select(std::bind(select_to_reverse, _1, getch(), count, false)); } },
{ { Key::Modifiers::Alt, 'f' }, [](Window& window, int count) { window.select(std::bind(select_to_reverse, _1, getch(), count, true)); } },
{ { Key::Modifiers::Alt, 'T' }, [](Window& window, int count) { window.select(std::bind(select_to_reverse, _1, getch(), count, false), true); } },
{ { Key::Modifiers::Alt, 'F' }, [](Window& window, int count) { window.select(std::bind(select_to_reverse, _1, getch(), count, true), true); } },
{ { Key::Modifiers::Alt, 'w' }, [](Window& window, int count) { do { window.select(select_to_next_WORD); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'e' }, [](Window& window, int count) { do { window.select(select_to_next_WORD_end); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'b' }, [](Window& window, int count) { do { window.select(select_to_previous_WORD); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'W' }, [](Window& window, int count) { do { window.select(select_to_next_WORD, true); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'E' }, [](Window& window, int count) { do { window.select(select_to_next_WORD_end, true); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'B' }, [](Window& window, int count) { do { window.select(select_to_previous_WORD, true); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'l' }, [](Window& window, int count) { do { window.select(select_to_eol, false); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'L' }, [](Window& window, int count) { do { window.select(select_to_eol, true); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'h' }, [](Window& window, int count) { do { window.select(select_to_eol_reverse, false); } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'H' }, [](Window& window, int count) { do { window.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' }, [](Window& window, int count) { window.multi_select(select_whole_lines); } },
};
void exec_string(const CommandParameters& params,
const Context& context)
{
if (params.size() != 1)
throw wrong_argument_count();
size_t pos = 0;
KeyList keys = parse_keys(params[0]);
prompt_func = [&](const std::string&, Completer) {
size_t begin = pos;
while (pos < keys.size() and keys[pos].key != '\n')
++pos;
std::string result;
for (size_t i = begin; i < pos; ++i)
result += keys[i].key;
++pos;
return result;
};
auto restore_prompt = on_scope_end([&]() { prompt_func = ncurses_prompt; });
int count = 0;
while(pos < keys.size())
{
const Key& key = keys[pos++];
if (key.modifiers == Key::Modifiers::None and isdigit(key.key))
count = count * 10 + key.key - '0';
else
{
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auto it = keymap.find(key);
if (it != keymap.end())
it->second(*context.window, count);
count = 0;
}
}
}
int main(int argc, char* argv[])
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{
init_ncurses();
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CommandManager command_manager;
BufferManager buffer_manager;
RegisterManager register_manager;
HighlighterRegistry highlighter_registry;
FilterRegistry filter_registry;
HooksManager hooks_manager;
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command_manager.register_command(std::vector<std::string>{ "e", "edit" }, edit,
CommandManager::None,
PerArgumentCommandCompleter{ complete_filename });
command_manager.register_command(std::vector<std::string>{ "q", "quit" }, quit<false>);
command_manager.register_command(std::vector<std::string>{ "q!", "quit!" }, quit<true>);
command_manager.register_command(std::vector<std::string>{ "w", "write" }, write_buffer,
CommandManager::None,
PerArgumentCommandCompleter{ complete_filename });
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command_manager.register_command(std::vector<std::string>{ "wq" }, write_and_quit<false>);
command_manager.register_command(std::vector<std::string>{ "wq!" }, write_and_quit<true>);
command_manager.register_command(std::vector<std::string>{ "b", "buffer" }, show_buffer,
CommandManager::None,
PerArgumentCommandCompleter {
std::bind(&BufferManager::complete_buffername, &buffer_manager, _1, _2)
});
command_manager.register_command(std::vector<std::string>{ "ah", "addhl" }, add_highlighter,
CommandManager::None,
PerArgumentCommandCompleter {
std::bind(&HighlighterRegistry::complete_highlighter, &highlighter_registry, _1, _2)
});
command_manager.register_command(std::vector<std::string>{ "rh", "rmhl" }, rm_highlighter,
CommandManager::None,
PerArgumentCommandCompleter {
[&](const std::string& prefix, size_t cursor_pos)
{ return main_context.window->complete_highlighterid(prefix, cursor_pos); }
});
command_manager.register_command(std::vector<std::string>{ "af", "addfilter" }, add_filter,
CommandManager::None,
PerArgumentCommandCompleter {
std::bind(&FilterRegistry::complete_filter, &filter_registry, _1, _2)
});
command_manager.register_command(std::vector<std::string>{ "rf", "rmfilter" }, rm_filter,
CommandManager::None,
PerArgumentCommandCompleter {
[&](const std::string& prefix, size_t cursor_pos)
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{ return main_context.window->complete_filterid(prefix, cursor_pos); }
});
command_manager.register_command(std::vector<std::string>{ "hook" }, add_hook, CommandManager::IgnoreSemiColons);
command_manager.register_command(std::vector<std::string>{ "source" }, exec_commands_in_file,
CommandManager::None,
PerArgumentCommandCompleter{ complete_filename });
command_manager.register_command(std::vector<std::string>{ "exec" }, exec_string);
register_highlighters();
register_filters();
try
{
const char* kakrc = "kakrc";
char buffer[2048];
readlink("/proc/self/exe", buffer, 2048 - strlen(kakrc));
char* ptr = strrchr(buffer, '/');
if (ptr)
{
strcpy(ptr+1, kakrc);
exec_commands_in_file({ buffer }, main_context);
}
}
catch (Kakoune::runtime_error& error)
{
print_status(error.description());
}
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try
{
write_debug("*** This is the debug buffer, where debug info will be written ***\n");
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auto buffer = (argc > 1) ? open_or_create(argv[1]) : new Buffer("*scratch*", Buffer::Type::Scratch);
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main_context = Context(*buffer->get_or_create_window());
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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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{
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char c = getch();
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if (isdigit(c))
count = count * 10 + c - '0';
else
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{
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Key::Modifiers modifiers = Key::Modifiers::None;
if (c == 27)
{
timeout(0);
char new_c = getch();
timeout(-1);
if (new_c != ERR)
{
c = new_c;
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modifiers = Key::Modifiers::Alt;
}
}
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Key key(modifiers, c);
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auto it = keymap.find(key);
if (it != keymap.end())
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{
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it->second(*main_context.window, count);
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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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}
}
deinit_ncurses();
}
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catch (Kakoune::exception& error)
{
deinit_ncurses();
puts("uncaught exception:\n");
puts(error.description().c_str());
return -1;
}
catch (...)
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{
deinit_ncurses();
throw;
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}
return 0;
}