home/src/main.cc
Maxime Coste 7fb49b183e ShellManager environment variable use a regex instead of an exact match
when a kakoune releated env var used in a shell command, the ShellManager
tries to match it with given regex and the first that matches calls its
value retriever.

For this to be useful, EnvVarRetrievers now also take the variable
name in its parameters.
2012-06-25 19:40:18 +02:00

505 lines
19 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()['/'].get();
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()['/'].get();
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.get(count-1));
else
editor.insert(reg.get(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(); });
register_commands();
register_highlighters();
register_filters();
try
{
NCursesUI ui;
current_ui = &ui;
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_ui->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_ui->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;
}
return 0;
}