home/src/normal.cc

2199 lines
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C++
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#include "normal.hh"
#include "buffer.hh"
#include "buffer_manager.hh"
#include "buffer_utils.hh"
#include "changes.hh"
#include "client_manager.hh"
#include "command_manager.hh"
#include "commands.hh"
#include "context.hh"
#include "diff.hh"
#include "face_registry.hh"
#include "file.hh"
#include "flags.hh"
#include "option_manager.hh"
#include "ranges.hh"
#include "regex.hh"
#include "register_manager.hh"
#include "selectors.hh"
#include "shell_manager.hh"
#include "string.hh"
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#include "user_interface.hh"
#include "window.hh"
namespace Kakoune
{
using namespace std::placeholders;
enum class SelectMode
{
Replace,
Extend,
Append,
};
template<SelectMode mode, typename T>
void select(Context& context, T func)
{
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auto& selections = context.selections();
if (mode == SelectMode::Append)
{
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auto& sel = selections.main();
if (auto res = func(context, sel))
{
if (res->captures().empty())
res->captures() = sel.captures();
selections.push_back(std::move(*res));
selections.set_main_index(selections.size() - 1);
}
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}
else
{
Vector<int> to_remove;
for (int i = 0; i < (int)selections.size(); ++i)
{
auto& sel = selections[i];
auto res = func(context, sel);
if (not res)
{
to_remove.push_back(i);
continue;
}
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if (mode == SelectMode::Extend)
sel.cursor() = res->cursor();
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else
{
sel.anchor() = res->anchor();
sel.cursor() = res->cursor();
}
if (not res->captures().empty())
sel.captures() = std::move(res->captures());
}
if (to_remove.size() == selections.size())
throw runtime_error{"no selections remaining"};
for (auto& i : to_remove | reverse())
selections.remove(i);
}
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selections.sort_and_merge_overlapping();
selections.check_invariant();
}
template<SelectMode mode, Optional<Selection> (*func)(const Context&, const Selection&)>
void select(Context& context, NormalParams)
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{
select<mode>(context, func);
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}
template<SelectMode mode, typename Func>
void select_and_set_last(Context& context, Func&& func)
{
context.set_last_select(
[func](Context& context){ select<mode>(context, func); });
return select<mode>(context, func);
}
template<SelectMode mode = SelectMode::Replace>
void select_coord(Buffer& buffer, BufferCoord coord, SelectionList& selections)
{
coord = buffer.clamp(coord);
if (mode == SelectMode::Replace)
selections = SelectionList{ buffer, coord };
else if (mode == SelectMode::Extend)
{
for (auto& sel : selections)
sel.cursor() = coord;
selections.sort_and_merge_overlapping();
}
}
template<InsertMode mode>
void enter_insert_mode(Context& context, NormalParams params)
{
context.input_handler().insert(mode, params.count);
}
void repeat_last_insert(Context& context, NormalParams)
{
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context.input_handler().repeat_last_insert();
}
void repeat_last_select(Context& context, NormalParams)
{
context.repeat_last_select();
}
struct KeyInfo
{
ConstArrayView<Key> keys;
StringView docstring;
};
String build_autoinfo_for_mapping(Context& context, KeymapMode mode,
ConstArrayView<KeyInfo> built_ins)
{
auto& keymaps = context.keymaps();
Vector<std::pair<String, StringView>> descs;
for (auto& built_in : built_ins)
{
String keys = join(built_in.keys |
filter([&](Key k){ return not keymaps.is_mapped(k, mode); }) |
transform([](Key k) { return key_to_str(k); }),
',', false);
if (not keys.empty())
descs.emplace_back(std::move(keys), built_in.docstring);
}
for (auto& key : keymaps.get_mapped_keys(mode))
descs.emplace_back(key_to_str(key),
keymaps.get_mapping(key, mode).docstring);
auto max_len = 0_col;
for (auto& desc : descs)
{
auto len = desc.first.column_length();
if (len > max_len)
max_len = len;
}
String res;
for (auto& desc : descs)
res += format("{}:{}{}\n",
desc.first,
String{' ', max_len - desc.first.column_length() + 1},
desc.second);
return res;
}
template<SelectMode mode>
void goto_commands(Context& context, NormalParams params)
{
if (params.count != 0)
{
context.push_jump();
select_coord<mode>(context.buffer(), LineCount{params.count - 1}, context.selections());
if (context.has_window())
context.window().center_line(LineCount{params.count-1});
}
else
{
on_next_key_with_autoinfo(context, KeymapMode::Goto,
[](Key key, Context& context) {
auto cp = key.codepoint();
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if (not cp or key == Key::Escape)
return;
auto& buffer = context.buffer();
switch (to_lower(*cp))
{
case 'g':
case 'k':
context.push_jump();
select_coord<mode>(buffer, BufferCoord{0,0}, context.selections());
break;
case 'l':
select<mode, select_to_line_end<true>>(context, {});
break;
case 'h':
select<mode, select_to_line_begin<true>>(context, {});
break;
case 'i':
select<mode, select_to_first_non_blank>(context, {});
break;
case 'j':
context.push_jump();
select_coord<mode>(buffer, buffer.line_count() - 1, context.selections());
break;
case 'e':
context.push_jump();
select_coord<mode>(buffer, buffer.back_coord(), context.selections());
break;
case 't':
if (context.has_window())
{
auto line = context.window().position().line;
select_coord<mode>(buffer, line, context.selections());
}
break;
case 'b':
if (context.has_window())
{
auto& window = context.window();
auto line = window.position().line + window.dimensions().line - 1;
select_coord<mode>(buffer, line, context.selections());
}
break;
case 'c':
if (context.has_window())
{
auto& window = context.window();
auto line = window.position().line + window.dimensions().line / 2;
select_coord<mode>(buffer, line, context.selections());
}
break;
case 'a':
{
Buffer* target = nullptr;
if (not context.has_client() or
not (target = context.client().last_buffer()))
{
throw runtime_error("no last buffer");
break;
}
context.push_jump();
context.change_buffer(*target);
break;
}
case 'f':
{
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auto filename = content(buffer, context.selections().main());
static constexpr char forbidden[] = { '\'', '\\', '\0' };
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if (contains_that(filename, [](char c){ return contains(forbidden, c); }))
return;
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auto paths = context.options()["path"].get<Vector<String, MemoryDomain::Options>>();
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StringView buffer_dir = split_path(buffer.name()).first;
if (not buffer_dir.empty())
paths.insert(paths.begin(), buffer_dir.str());
String path = find_file(filename, paths);
if (path.empty())
throw runtime_error(format("unable to find file '{}'", filename));
Buffer* buffer = BufferManager::instance().get_buffer_ifp(path);
if (not buffer)
{
buffer = open_file_buffer(path, context.hooks_disabled() ?
Buffer::Flags::NoHooks
: Buffer::Flags::None);
buffer->flags() &= ~Buffer::Flags::NoHooks;
}
if (buffer != &context.buffer())
{
context.push_jump();
context.change_buffer(*buffer);
}
break;
}
case '.':
{
context.push_jump();
auto pos = buffer.last_modification_coord();
if (pos >= buffer.back_coord())
pos = buffer.back_coord();
else if (buffer[pos.line].length() == pos.column + 1)
pos = BufferCoord{ pos.line+1, 0 };
select_coord<mode>(buffer, pos, context.selections());
break;
}
}
}, (mode == SelectMode::Extend ? "goto (extend to)" : "goto"),
build_autoinfo_for_mapping(context, KeymapMode::Goto,
{{{'g','k'},"buffer top"},
{{'l'}, "line end"},
{{'h'}, "line begin"},
{{'i'}, "line non blank start"},
{{'j'}, "buffer bottom"},
{{'e'}, "buffer end"},
{{'t'}, "window top"},
{{'b'}, "window bottom"},
{{'c'}, "window center"},
{{'a'}, "last buffer"},
{{'f'}, "file"},
{{'.'}, "last buffer change"}}));
}
}
template<bool lock>
void view_commands(Context& context, NormalParams params)
{
const int count = params.count;
on_next_key_with_autoinfo(context, KeymapMode::View,
[count](Key key, Context& context) {
if (key == Key::Escape)
return;
if (lock)
view_commands<true>(context, { count, 0 });
auto cp = key.codepoint();
if (not cp or not context.has_window())
return;
const BufferCoord cursor = context.selections().main().cursor();
Window& window = context.window();
switch (to_lower(*cp))
{
case 'v':
case 'c':
window.center_line(cursor.line);
break;
case 'm':
window.center_column(
context.buffer()[cursor.line].column_count_to(cursor.column));
break;
case 't':
window.display_line_at(cursor.line, 0);
break;
case 'b':
window.display_line_at(cursor.line, window.dimensions().line-1);
break;
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case 'h':
window.scroll(-std::max<ColumnCount>(1, count));
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break;
case 'j':
window.scroll( std::max<LineCount>(1, count));
break;
case 'k':
window.scroll(-std::max<LineCount>(1, count));
break;
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case 'l':
window.scroll( std::max<ColumnCount>(1, count));
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break;
}
}, lock ? "view (lock)" : "view",
build_autoinfo_for_mapping(context, KeymapMode::View,
{{{'v','c'}, "center cursor (vertically)"},
{{'m'}, "center cursor (horizontally)"},
{{'t'}, "cursor on top"},
{{'b'}, "cursor on bottom"},
{{'h'}, "scroll left"},
{{'j'}, "scroll down"},
{{'k'}, "scroll up"},
{{'l'}, "scroll right"}}));
}
void replace_with_char(Context& context, NormalParams)
{
on_next_key_with_autoinfo(context, KeymapMode::None,
[](Key key, Context& context) {
auto cp = key.codepoint();
if (not cp or key == Key::Escape)
return;
ScopedEdition edition(context);
Buffer& buffer = context.buffer();
SelectionList& selections = context.selections();
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Vector<String> strings;
for (auto& sel : selections)
{
CharCount count = char_length(buffer, sel);
strings.emplace_back(*cp, count);
}
selections.insert(strings, InsertMode::Replace);
}, "replace with char", "enter char to replace with\n");
}
Codepoint swap_case(Codepoint cp)
{
Codepoint res = to_lower(cp);
return res == cp ? to_upper(cp) : res;
}
template<Codepoint (*func)(Codepoint)>
void for_each_codepoint(Context& context, NormalParams)
{
using Utf8It = utf8::iterator<BufferIterator>;
ScopedEdition edition(context);
Buffer& buffer = context.buffer();
SelectionList& selections = context.selections();
Vector<String> strings;
for (auto& sel : selections)
{
String str;
for (auto begin = Utf8It{buffer.iterator_at(sel.min()), buffer},
end = Utf8It{buffer.iterator_at(sel.max()), buffer}+1;
begin != end; ++begin)
utf8::dump(std::back_inserter(str), func(*begin));
strings.push_back(std::move(str));
}
selections.insert(strings, InsertMode::Replace);
}
void command(Context& context, NormalParams params)
{
if (not CommandManager::has_instance())
return;
CommandManager::instance().clear_last_complete_command();
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context.input_handler().prompt(
":", {}, context.main_sel_register_value(':').str(),
get_face("Prompt"), PromptFlags::DropHistoryEntriesWithBlankPrefix,
[](const Context& context, CompletionFlags flags,
StringView cmd_line, ByteCount pos) {
return CommandManager::instance().complete(context, flags, cmd_line, pos);
},
[params](StringView cmdline, PromptEvent event, Context& context) {
if (context.has_client())
{
context.client().info_hide();
if (event == PromptEvent::Change)
{
auto info = CommandManager::instance().command_info(context, cmdline);
context.input_handler().set_prompt_face(get_face(info ? "Prompt" : "Error"));
auto autoinfo = context.options()["autoinfo"].get<AutoInfo>();
if (autoinfo & AutoInfo::Command)
{
if (cmdline.length() == 1 and is_horizontal_blank(cmdline[0_byte]))
context.client().info_show("prompt",
"commands preceded by a blank wont be saved to history",
{}, InfoStyle::Prompt);
else if (info and not info->info.empty())
context.client().info_show(info->name, info->info, {}, InfoStyle::Prompt);
}
}
}
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if (event == PromptEvent::Validate)
{
if (cmdline.empty())
cmdline = context.main_sel_register_value(':');
else if (not is_blank(cmdline[0]) and not context.history_disabled())
RegisterManager::instance()[':'].set(context, cmdline.str());
EnvVarMap env_vars = {
{ "count", to_string(params.count) },
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{ "register", String{&params.reg, 1} }
};
CommandManager::instance().execute(
cmdline, context, { {}, env_vars });
}
});
}
void apply_diff(Buffer& buffer, BufferCoord pos, StringView before, StringView after)
{
// The diff algorithm is O(ND) with N the sum of string len, and D the diff count
// do not use it if our data is too big
constexpr ByteCount size_limit = 100 * 1024;
if (before.length() + after.length() > size_limit)
{
buffer.erase(pos, buffer.advance(pos, before.length()));
buffer.insert(pos, after);
return;
}
auto diffs = find_diff(before.begin(), (int)before.length(), after.begin(), (int)after.length());
for (auto& diff : diffs)
{
switch (diff.mode)
{
case Diff::Keep:
pos = buffer.advance(pos, diff.len);
break;
case Diff::Add:
buffer.insert(pos, after.substr(ByteCount{diff.posB}, ByteCount{diff.len}));
pos = buffer.advance(pos, diff.len);
break;
case Diff::Remove:
buffer.erase(pos, buffer.advance(pos, diff.len));
break;
}
}
}
template<bool replace>
void pipe(Context& context, NormalParams)
{
const char* prompt = replace ? "pipe:" : "pipe-to:";
context.input_handler().prompt(
prompt, {}, context.main_sel_register_value("|").str(), get_face("Prompt"),
PromptFlags::DropHistoryEntriesWithBlankPrefix,
shell_complete,
[](StringView cmdline, PromptEvent event, Context& context)
{
if (event != PromptEvent::Validate)
return;
if (cmdline.empty())
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cmdline = context.main_sel_register_value("|");
else if (not context.history_disabled())
RegisterManager::instance()['|'].set(context, cmdline.str());
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if (cmdline.empty())
return;
Buffer& buffer = context.buffer();
SelectionList selections = context.selections();
auto restore_sels = on_scope_end([&, old_main = selections.main_index()] {
selections.set_main_index(old_main);
context.selections() = std::move(selections);
});
if (replace)
{
ScopedEdition edition(context);
ForwardChangesTracker changes_tracker;
size_t timestamp = buffer.timestamp();
for (int i = 0; i < selections.size(); ++i)
{
selections.set_main_index(i);
auto& sel = selections.main();
const auto beg = changes_tracker.get_new_coord_tolerant(sel.min());
const auto end = changes_tracker.get_new_coord_tolerant(sel.max());
String in = buffer.string(beg, buffer.char_next(end));
const bool insert_eol = in.back() != '\n';
if (insert_eol)
in += '\n';
// Needed in case we read selections inside the cmdline
context.selections_write_only() = selections;
String out = ShellManager::instance().eval(
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cmdline, context, in,
ShellManager::Flags::WaitForStdout).first;
if (insert_eol)
{
in.resize(in.length()-1, 0);
if (not out.empty() and out.back() == '\n')
out.resize(out.length()-1, 0);
}
apply_diff(buffer, beg, in, out);
changes_tracker.update(buffer, timestamp);
}
}
else
{
for (int i = 0; i < selections.size(); ++i)
{
selections.set_main_index(i);
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ShellManager::instance().eval(cmdline, context,
content(buffer, selections.main()),
ShellManager::Flags::None);
}
}
});
}
template<InsertMode mode>
void insert_output(Context& context, NormalParams)
{
const char* prompt = mode == InsertMode::Insert ? "insert-output:" : "append-output:";
context.input_handler().prompt(
prompt, {}, context.main_sel_register_value("|").str(), get_face("Prompt"),
PromptFlags::DropHistoryEntriesWithBlankPrefix,
shell_complete,
[](StringView cmdline, PromptEvent event, Context& context)
{
if (event != PromptEvent::Validate)
return;
if (cmdline.empty())
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cmdline = context.main_sel_register_value("|");
else if (not context.history_disabled())
RegisterManager::instance()['|'].set(context, cmdline.str());
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if (cmdline.empty())
return;
auto str = ShellManager::instance().eval(
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cmdline, context, {}, ShellManager::Flags::WaitForStdout).first;
ScopedEdition edition(context);
context.selections().insert(str, mode);
});
}
void yank(Context& context, NormalParams params)
{
const char reg = params.reg ? params.reg : '"';
RegisterManager::instance()[reg].set(context, context.selections_content());
context.print_status({ format("yanked {} selections to register {}",
context.selections().size(), reg),
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get_face("Information") });
}
template<bool yank>
void erase_selections(Context& context, NormalParams params)
{
if (yank)
{
const char reg = params.reg ? params.reg : '"';
RegisterManager::instance()[reg].set(context, context.selections_content());
}
ScopedEdition edition(context);
context.selections().erase();
context.selections().avoid_eol();
}
template<bool yank>
void change(Context& context, NormalParams params)
{
if (yank)
{
const char reg = params.reg ? params.reg : '"';
RegisterManager::instance()[reg].set(context, context.selections_content());
}
enter_insert_mode<InsertMode::Replace>(context, params);
}
InsertMode adapt_for_linewise(InsertMode mode)
{
switch (mode)
{
case InsertMode::Append: return InsertMode::InsertAtNextLineBegin;
case InsertMode::Insert: return InsertMode::InsertAtLineBegin;
case InsertMode::Replace: return InsertMode::Replace;
default: return InsertMode::Insert;
}
}
template<InsertMode mode>
void paste(Context& context, NormalParams params)
{
const char reg = params.reg ? params.reg : '"';
auto strings = RegisterManager::instance()[reg].get(context);
const bool linewise = contains_that(strings, [](StringView str) {
return not str.empty() and str.back() == '\n';
});
const auto effective_mode = linewise ? adapt_for_linewise(mode) : mode;
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ScopedEdition edition(context);
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context.selections().insert(strings, effective_mode);
}
template<InsertMode mode>
void paste_all(Context& context, NormalParams params)
{
const char reg = params.reg ? params.reg : '"';
auto strings = RegisterManager::instance()[reg].get(context);
InsertMode effective_mode = mode;
String all;
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Vector<ByteCount> offsets;
for (auto& str : strings)
{
if (str.empty())
continue;
if (str.back() == '\n')
effective_mode = adapt_for_linewise(mode);
all += str;
offsets.push_back(all.length());
}
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Vector<BufferCoord> insert_pos;
auto& selections = context.selections();
{
ScopedEdition edition(context);
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selections.insert(all, effective_mode, &insert_pos);
}
const Buffer& buffer = context.buffer();
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Vector<Selection> result;
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for (auto& ins_pos : insert_pos)
{
ByteCount pos = 0;
for (auto offset : offsets)
{
result.emplace_back(buffer.advance(ins_pos, pos),
buffer.advance(ins_pos, offset-1));
pos = offset;
}
}
if (not result.empty())
selections = std::move(result);
}
constexpr RegexCompileFlags direction_flags(MatchDirection direction)
{
return (direction == MatchDirection::Forward) ?
RegexCompileFlags::None : RegexCompileFlags::Backward | RegexCompileFlags::NoForward;
}
template<MatchDirection direction = MatchDirection::Forward, typename T>
void regex_prompt(Context& context, String prompt, String default_regex, T func)
{
DisplayCoord position = context.has_window() ? context.window().position() : DisplayCoord{};
SelectionList selections = context.selections();
context.input_handler().prompt(
std::move(prompt), {}, default_regex, get_face("Prompt"),
PromptFlags::None, complete_nothing,
[=](StringView str, PromptEvent event, Context& context) mutable {
try
{
if (event != PromptEvent::Change and context.has_client())
context.client().info_hide();
const bool incsearch = context.options()["incsearch"].get<bool>();
if (incsearch)
{
selections.update();
context.selections_write_only() = selections;
if (context.has_window())
context.window().set_position(position);
context.input_handler().set_prompt_face(get_face("Prompt"));
}
if (not incsearch and event == PromptEvent::Change)
return;
if (event == PromptEvent::Validate)
context.push_jump();
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if (not str.empty() or event == PromptEvent::Validate)
func(Regex{str.empty() ? default_regex : str, direction_flags(direction)}, event, context);
}
catch (regex_error& err)
{
if (event == PromptEvent::Validate)
throw;
else
context.input_handler().set_prompt_face(get_face("Error"));
}
catch (runtime_error&)
{
context.selections_write_only() = selections;
// only validation should propagate errors,
// incremental search should not.
if (event == PromptEvent::Validate)
throw;
}
});
}
template<SelectMode mode, MatchDirection direction>
void search(Context& context, NormalParams params)
{
constexpr StringView prompt = mode == SelectMode::Extend ?
(direction == MatchDirection::Forward ? "search (extend):" : "reverse search (extend):")
: (direction == MatchDirection::Forward ? "search:" : "reverse search:");
const char reg = to_lower(params.reg ? params.reg : '/');
const int count = params.count;
auto saved_reg = RegisterManager::instance()[reg].get(context) | gather<Vector<String>>();
const int main_index = std::min(context.selections().main_index(), saved_reg.size()-1);
regex_prompt<direction>(context, prompt.str(), saved_reg[main_index],
[reg, count, saved_reg]
(const Regex& regex, PromptEvent event, Context& context) {
if (event == PromptEvent::Abort)
{
RegisterManager::instance()[reg].set(context, saved_reg);
return;
}
if (not context.history_disabled())
RegisterManager::instance()[reg].set(context, regex.str());
if (regex.empty() or regex.str().empty())
return;
int c = count;
auto& selections = context.selections();
do {
bool wrapped = false;
for (auto& sel : selections)
{
if (mode == SelectMode::Replace)
sel = keep_direction(find_next_match<direction>(context, sel, regex, wrapped), sel);
if (mode == SelectMode::Extend)
sel.cursor() = find_next_match<direction>(context, sel, regex, wrapped).cursor();
}
selections.sort_and_merge_overlapping();
} while (--c > 0);
});
}
template<SelectMode mode, MatchDirection direction>
void search_next(Context& context, NormalParams params)
{
const char reg = to_lower(params.reg ? params.reg : '/');
StringView str = context.main_sel_register_value(reg);
if (not str.empty())
{
Regex regex{str, direction_flags(direction)};
auto& selections = context.selections();
bool main_wrapped = false;
do {
bool wrapped = false;
if (mode == SelectMode::Replace)
{
auto& sel = selections.main();
sel = keep_direction(find_next_match<direction>(context, sel, regex, wrapped), sel);
}
else if (mode == SelectMode::Append)
{
auto sel = keep_direction(
find_next_match<direction>(context, selections.main(), regex, wrapped),
selections.main());
selections.push_back(std::move(sel));
selections.set_main_index(selections.size() - 1);
}
selections.sort_and_merge_overlapping();
main_wrapped = main_wrapped or wrapped;
} while (--params.count > 0);
if (main_wrapped)
context.print_status({"main selection search wrapped around buffer", get_face("Information")});
}
else
throw runtime_error("no search pattern");
}
template<bool smart>
void use_selection_as_search_pattern(Context& context, NormalParams params)
{
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Vector<String> patterns;
auto& sels = context.selections();
const auto& buffer = context.buffer();
for (auto& sel : sels)
{
const auto beg = sel.min(), end = buffer.char_next(sel.max());
patterns.push_back(format("{}{}{}",
smart and is_bow(buffer, beg) ? "\\b" : "",
escape(buffer.string(beg, end), "^$\\.*+?()[]{}|", '\\'),
smart and is_eow(buffer, end) ? "\\b" : ""));
}
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const char reg = to_lower(params.reg ? params.reg : '/');
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context.print_status({
format("register '{}' set to '{}'", reg, fix_atom_text(patterns[sels.main_index()])),
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get_face("Information") });
RegisterManager::instance()[reg].set(context, patterns);
// Hack, as Window do not take register state into account
if (context.has_window())
context.window().force_redraw();
}
void select_regex(Context& context, NormalParams params)
{
const char reg = to_lower(params.reg ? params.reg : '/');
const int capture = params.count;
auto prompt = capture ? format("select (capture {}):", capture) : "select:"_str;
auto reg_content = RegisterManager::instance()[reg].get(context);
Vector<String> saved_reg{reg_content.begin(), reg_content.end()};
const int main_index = std::min(context.selections().main_index(), saved_reg.size()-1);
regex_prompt(context, std::move(prompt), saved_reg[main_index],
[reg, capture, saved_reg](Regex ex, PromptEvent event, Context& context) {
if (event == PromptEvent::Abort)
{
RegisterManager::instance()[reg].set(context, saved_reg);
return;
}
RegisterManager::instance()[reg].set(context, ex.str());
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if (not ex.empty() and not ex.str().empty())
select_all_matches(context.selections(), ex, capture);
});
}
void split_regex(Context& context, NormalParams params)
{
const char reg = to_lower(params.reg ? params.reg : '/');
const int capture = params.count;
auto prompt = capture ? format("split (on capture {}):", (int)capture) : "split:"_str;
auto reg_content = RegisterManager::instance()[reg].get(context);
Vector<String> saved_reg{reg_content.begin(), reg_content.end()};
const int main_index = std::min(context.selections().main_index(), saved_reg.size()-1);
regex_prompt(context, std::move(prompt), saved_reg[main_index],
[reg, capture, saved_reg](Regex ex, PromptEvent event, Context& context) {
if (event == PromptEvent::Abort)
{
RegisterManager::instance()[reg].set(context, saved_reg);
return;
}
RegisterManager::instance()[reg].set(context, ex.str());
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if (not ex.empty() and not ex.str().empty())
split_selections(context.selections(), ex, capture);
});
}
void split_lines(Context& context, NormalParams)
{
auto& selections = context.selections();
auto& buffer = context.buffer();
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Vector<Selection> res;
for (auto& sel : selections)
{
if (sel.anchor().line == sel.cursor().line)
{
res.push_back(std::move(sel));
continue;
}
auto min = sel.min();
auto max = sel.max();
res.push_back(keep_direction({min, {min.line, buffer[min.line].length()-1}}, sel));
for (auto line = min.line+1; line < max.line; ++line)
res.push_back(keep_direction({line, {line, buffer[line].length()-1}}, sel));
res.push_back(keep_direction({max.line, max}, sel));
}
selections = std::move(res);
}
void select_boundaries(Context& context, NormalParams)
{
auto& selections = context.selections();
Vector<Selection> res;
for (auto& sel : selections)
{
res.push_back(sel.min());
if (sel.min() != sel.max())
res.push_back(sel.max());
}
selections = std::move(res);
}
void join_lines_select_spaces(Context& context, NormalParams)
{
auto& buffer = context.buffer();
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Vector<Selection> selections;
for (auto& sel : context.selections())
{
const LineCount min_line = sel.min().line;
const LineCount max_line = sel.max().line;
auto end_line = std::min(buffer.line_count()-1,
max_line + (min_line == max_line ? 1 : 0));
for (LineCount line = min_line; line < end_line; ++line)
{
auto begin = buffer.iterator_at({line, buffer[line].length()-1});
auto end = std::find_if_not(begin+1, buffer.end(), is_horizontal_blank);
selections.emplace_back(begin.coord(), (end-1).coord());
}
}
if (selections.empty())
return;
context.selections_write_only() = std::move(selections);
ScopedEdition edition(context);
context.selections().insert(" "_str, InsertMode::Replace);
}
void join_lines(Context& context, NormalParams params)
{
SelectionList sels{context.selections()};
auto restore_sels = on_scope_end([&]{
sels.update();
context.selections_write_only() = std::move(sels);
});
join_lines_select_spaces(context, params);
}
template<bool matching>
void keep(Context& context, NormalParams params)
{
constexpr StringView prompt = matching ? "keep matching:" : "keep not matching:";
const char reg = to_lower(params.reg ? params.reg : '/');
auto saved_reg = RegisterManager::instance()[reg].get(context) | gather<Vector<String>>();
const int main_index = std::min(context.selections().main_index(), saved_reg.size()-1);
regex_prompt(context, prompt.str(), saved_reg[main_index],
[saved_reg, reg, main_index]
(const Regex& regex, PromptEvent event, Context& context) {
if (event == PromptEvent::Abort)
{
RegisterManager::instance()[reg].set(context, saved_reg);
return;
}
if (not context.history_disabled())
RegisterManager::instance()[reg].set(context, regex.str());
if (regex.empty() or regex.str().empty())
return;
const Buffer& buffer = context.buffer();
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Vector<Selection> keep;
for (auto& sel : context.selections())
{
auto begin = buffer.iterator_at(sel.min());
auto end = utf8::next(buffer.iterator_at(sel.max()), buffer.end());
// We do not consider if end is on an eol, as it seems to
// give more intuitive behaviours in keep use cases.
const auto flags = match_flags(is_bol(begin.coord()), false,
is_bow(buffer, begin.coord()),
is_eow(buffer, end.coord()),
true, true) |
RegexExecFlags::AnyMatch;
if (regex_search(begin, end, regex, flags) == matching)
keep.push_back(sel);
}
if (keep.empty())
throw runtime_error("no selections remaining");
context.selections_write_only() = std::move(keep);
});
}
void keep_pipe(Context& context, NormalParams)
{
context.input_handler().prompt(
"keep pipe:", {}, {}, get_face("Prompt"),
PromptFlags::DropHistoryEntriesWithBlankPrefix, shell_complete,
[](StringView cmdline, PromptEvent event, Context& context) {
if (event != PromptEvent::Validate)
return;
const Buffer& buffer = context.buffer();
auto& shell_manager = ShellManager::instance();
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Vector<Selection> keep;
auto& selections = context.selections();
const size_t old_main = selections.main_index();
size_t new_main = -1;
for (int i = 0; i < selections.size(); ++i)
{
auto& sel = selections[i];
selections.set_main_index(i);
if (shell_manager.eval(cmdline, context, content(buffer, sel),
ShellManager::Flags::None).second == 0)
{
keep.push_back(sel);
if (i >= old_main and new_main == (size_t)-1)
new_main = keep.size() - 1;
}
}
if (keep.empty())
throw runtime_error("no selections remaining");
if (new_main == -1)
new_main = keep.size() - 1;
context.selections_write_only().set(std::move(keep), new_main);
});
}
template<bool indent_empty = false>
void indent(Context& context, NormalParams params)
{
CharCount count = params.count ? params.count : 1;
CharCount indent_width = context.options()["indentwidth"].get<int>();
String indent = indent_width == 0 ? String{'\t', count} : String{' ', indent_width * count};
auto& buffer = context.buffer();
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Vector<Selection> sels;
LineCount last_line = 0;
for (auto& sel : context.selections())
{
for (auto line = std::max(last_line, sel.min().line); line < sel.max().line+1; ++line)
{
if (indent_empty or buffer[line].length() > 1)
sels.emplace_back(line, line);
}
// avoid reindenting the same line if multiple selections are on it
last_line = sel.max().line+1;
}
if (not sels.empty())
{
ScopedEdition edition(context);
SelectionList selections{buffer, std::move(sels)};
selections.insert(indent, InsertMode::Insert);
}
}
template<bool deindent_incomplete = true>
void deindent(Context& context, NormalParams params)
{
ColumnCount count = params.count ? params.count : 1;
ColumnCount tabstop = context.options()["tabstop"].get<int>();
ColumnCount indent_width = context.options()["indentwidth"].get<int>();
if (indent_width == 0)
indent_width = tabstop;
indent_width = indent_width * count;
auto& buffer = context.buffer();
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Vector<Selection> sels;
LineCount last_line = 0;
for (auto& sel : context.selections())
{
for (auto line = std::max(sel.min().line, last_line);
line < sel.max().line+1; ++line)
{
ColumnCount width = 0;
auto content = buffer[line];
for (auto column = 0_byte; column < content.length(); ++column)
{
const char c = content[column];
if (c == '\t')
width = (width / tabstop + 1) * tabstop;
else if (c == ' ')
++width;
else
{
if (deindent_incomplete and width != 0)
sels.emplace_back(line, BufferCoord{line, column-1});
break;
}
if (width == indent_width)
{
sels.emplace_back(line, BufferCoord{line, column});
break;
}
}
}
// avoid reindenting the same line if multiple selections are on it
last_line = sel.max().line + 1;
}
if (not sels.empty())
{
ScopedEdition edition(context);
SelectionList selections{context.buffer(), std::move(sels)};
selections.erase();
}
}
template<ObjectFlags flags, SelectMode mode = SelectMode::Replace>
void select_object(Context& context, NormalParams params)
{
auto get_title = [] {
const auto whole_flags = (ObjectFlags::ToBegin | ObjectFlags::ToEnd);
const bool whole = (flags & whole_flags) == whole_flags;
return format("{} {}{}surrounding object{}",
mode == SelectMode::Extend ? "extend" : "select",
whole ? "" : "to ",
flags & ObjectFlags::Inner ? "inner " : "",
whole ? "" : (flags & ObjectFlags::ToBegin ? " begin" : " end"));
};
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const int count = params.count <= 0 ? 0 : params.count - 1;
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on_next_key_with_autoinfo(context, KeymapMode::Object,
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[count](Key key, Context& context) {
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if (not key.codepoint() or key == Key::Escape)
return;
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const auto cp = *key.codepoint();
static constexpr struct ObjectType
{
Codepoint key;
Optional<Selection> (*func)(const Context&, const Selection&, int, ObjectFlags);
} selectors[] = {
{ 'w', select_word<Word> },
{ 'W', select_word<WORD> },
{ 's', select_sentence },
{ 'p', select_paragraph },
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{ ' ', select_whitespaces },
{ 'i', select_indent },
{ 'n', select_number },
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{ 'u', select_argument },
};
auto obj_it = find(selectors | transform(std::mem_fn(&ObjectType::key)), cp).base();
if (obj_it != std::end(selectors))
return select_and_set_last<mode>(
context, std::bind(obj_it->func, _1, _2, count, flags));
if (cp == 'c')
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{
const bool info = show_auto_info_ifn(
"Enter object desc",
"format: <open regex>,<close regex>\n"
" escape commas with '\\'",
AutoInfo::Command, context);
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context.input_handler().prompt(
"object desc:", {}, {}, get_face("Prompt"),
PromptFlags::None, complete_nothing,
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[count,info](StringView cmdline, PromptEvent event, Context& context) {
if (event != PromptEvent::Change)
hide_auto_info_ifn(context, info);
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if (event != PromptEvent::Validate)
return;
struct error : runtime_error { error(size_t) : runtime_error{"desc parsing failed, expected <open>,<close>"} {} };
auto params = cmdline | split<StringView>(',', '\\') |
transform(unescape<',', '\\'>) | static_gather<error, 2>();
if (params[0].empty() or params[1].empty())
throw error{0};
select_and_set_last<mode>(
context, std::bind(select_surrounding, _1, _2,
Regex{params[0], RegexCompileFlags::Backward},
Regex{params[1], RegexCompileFlags::Backward},
count, flags));
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});
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return;
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}
static constexpr struct SurroundingPair
{
char opening;
char closing;
char name;
} surrounding_pairs[] = {
{ '(', ')', 'b' },
{ '{', '}', 'B' },
{ '[', ']', 'r' },
{ '<', '>', 'a' },
{ '"', '"', 'Q' },
{ '\'', '\'', 'q' },
{ '`', '`', 'g' },
};
auto pair_it = find_if(surrounding_pairs,
[cp](const SurroundingPair& s) {
return s.opening == cp or s.closing == cp or
(s.name != 0 and s.name == cp);
});
if (pair_it != std::end(surrounding_pairs))
return select_and_set_last<mode>(
context, std::bind(select_surrounding, _1, _2,
Regex{format("\\Q{}", pair_it->opening), RegexCompileFlags::Backward},
Regex{format("\\Q{}", pair_it->closing), RegexCompileFlags::Backward},
count, flags));
if (is_punctuation(cp) or cp == '_')
{
auto re = Regex{"\\Q" + to_string(cp), RegexCompileFlags::Backward};
return select_and_set_last<mode>(
context, std::bind(select_surrounding, _1, _2,
re, re, count, flags));
}
}, get_title(),
build_autoinfo_for_mapping(context, KeymapMode::Object,
{{{'b','(',')'}, "parenthesis block"},
{{'B','{','}'}, "braces block"},
{{'r','[',']'}, "brackets block"},
{{'a','<','>'}, "angle block"},
{{'"','Q'}, "double quote string"},
{{'\'','q'}, "single quote string"},
{{'`','g'}, "grave quote string"},
{{'w'}, "word"},
{{'W'}, "WORD"},
{{'s'}, "sentence"},
{{'p'}, "paragraph"},
{{' '}, "whitespaces"},
{{'i'}, "indent"},
{{'u'}, "argument"},
{{'n'}, "number"},
{{'c'}, "custom object desc"}}));
}
enum Direction { Forward, Backward };
template<Direction direction, bool half = false>
void scroll(Context& context, NormalParams params)
{
Window& window = context.window();
const int count = params.count ? params.count : 1;
const LineCount offset = (window.dimensions().line - 2) / (half ? 2 : 1) * count;
scroll_window(context, direction == Direction::Forward ? offset : -offset);
}
template<Direction direction>
void copy_selections_on_next_lines(Context& context, NormalParams params)
{
auto& selections = context.selections();
auto& buffer = context.buffer();
const ColumnCount tabstop = context.options()["tabstop"].get<int>();
Vector<Selection> result;
size_t main_index = 0;
for (auto& sel : selections)
{
const bool is_main = (&sel == &selections.main());
auto anchor = sel.anchor();
auto cursor = sel.cursor();
ColumnCount cursor_col = get_column(buffer, tabstop, cursor);
ColumnCount anchor_col = get_column(buffer, tabstop, anchor);
if (is_main)
main_index = result.size();
result.push_back(std::move(sel));
const LineCount height = std::max(anchor.line, cursor.line) - std::min(anchor.line, cursor.line) + 1;
for (int i = 0; i < std::max(params.count, 1); ++i)
{
LineCount offset = (direction == Forward ? 1 : -1) * (i + 1) * height;
const LineCount anchor_line = anchor.line + offset;
const LineCount cursor_line = cursor.line + offset;
if (anchor_line < 0 or cursor_line < 0 or
anchor_line >= buffer.line_count() or cursor_line >= buffer.line_count())
continue;
ByteCount anchor_byte = get_byte_to_column(buffer, tabstop, {anchor_line, anchor_col});
ByteCount cursor_byte = get_byte_to_column(buffer, tabstop, {cursor_line, cursor_col});
if (anchor_byte != buffer[anchor_line].length() and
cursor_byte != buffer[cursor_line].length())
{
if (is_main)
main_index = result.size();
result.emplace_back(BufferCoord{anchor_line, anchor_byte},
BufferCoordAndTarget{cursor_line, cursor_byte, cursor.target});
}
}
}
selections.set(std::move(result), main_index);
selections.sort_and_merge_overlapping();
}
template<Direction direction>
void rotate_selections(Context& context, NormalParams params)
{
const int count = params.count ? params.count : 1;
auto& selections = context.selections();
const int index = selections.main_index();
const int num = selections.size();
selections.set_main_index((direction == Forward) ?
(index + count) % num
: (index + (num - count % num)) % num);
}
void rotate_selections_content(Context& context, NormalParams params)
{
int group = params.count;
int count = 1;
auto strings = context.selections_content();
if (group == 0 or group > (int)strings.size())
group = (int)strings.size();
count = count % group;
for (auto it = strings.begin(); it != strings.end(); )
{
auto end = std::min(strings.end(), it + group);
std::rotate(it, end-count, end);
it = end;
}
auto& selections = context.selections();
selections.insert(strings, InsertMode::Replace);
selections.set_main_index((selections.main_index() + count) %
selections.size());
}
enum class SelectFlags
{
None = 0,
Reverse = 1,
Inclusive = 2,
Extend = 4
};
constexpr bool with_bit_ops(Meta::Type<SelectFlags>) { return true; }
template<SelectFlags flags>
void select_to_next_char(Context& context, NormalParams params)
{
auto get_title = [] {
return format("{}{} {} next char",
flags & SelectFlags::Reverse ? "reverse " : "",
flags & SelectFlags::Extend ? "extend" : "select",
flags & SelectFlags::Inclusive ? "onto" : "to");
};
on_next_key_with_autoinfo(context, KeymapMode::None,
[params](Key key, Context& context) {
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auto cp = key.codepoint();
if (not cp or key == Key::Escape)
return;
constexpr auto new_flags = flags & SelectFlags::Extend ? SelectMode::Extend
: SelectMode::Replace;
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select_and_set_last<new_flags>(
context,
std::bind(flags & SelectFlags::Reverse ? select_to_reverse
: select_to,
_1, _2, *cp, params.count,
flags & SelectFlags::Inclusive));
}, get_title(), "enter char to select to");
}
void start_or_end_macro_recording(Context& context, NormalParams params)
{
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if (context.input_handler().is_recording())
context.input_handler().stop_recording();
else
{
const char reg = to_lower(params.reg ? params.reg : '@');
if (not is_basic_alpha(reg) and reg != '@')
throw runtime_error("Macros can only use the '@' and alphabetic registers");
context.input_handler().start_recording(reg);
}
}
void end_macro_recording(Context& context, NormalParams)
{
if (context.input_handler().is_recording())
context.input_handler().stop_recording();
}
void replay_macro(Context& context, NormalParams params)
{
const char reg = to_lower(params.reg ? params.reg : '@');
if (not is_basic_alpha(reg) and reg != '@')
throw runtime_error("Macros can only use the '@' and alphabetic registers");
static bool running_macros[27] = {};
const size_t idx = reg != '@' ? (size_t)(reg - 'a') : 26;
if (running_macros[idx])
throw runtime_error("recursive macros call detected");
ConstArrayView<String> reg_val = RegisterManager::instance()[reg].get(context);
if (reg_val.empty() or reg_val[0].empty())
throw runtime_error(format("Register '{}' is empty", reg));
running_macros[idx] = true;
auto stop = on_scope_end([&]{ running_macros[idx] = false; });
auto keys = parse_keys(reg_val[0]);
ScopedEdition edition(context);
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do
{
for (auto& key : keys)
context.input_handler().handle_key(key);
} while (--params.count > 0);
}
template<Direction direction>
void jump(Context& context, NormalParams params)
{
const int count = std::max(1, params.count);
auto jump = (direction == Forward) ?
context.jump_list().forward(context, count) :
context.jump_list().backward(context, count);
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Buffer* oldbuf = &context.buffer();
Buffer& buffer = const_cast<Buffer&>(jump.buffer());
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if (&buffer != oldbuf)
context.change_buffer(buffer);
context.selections_write_only() = jump;
}
void push_selections(Context& context, NormalParams)
{
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context.push_jump();
context.print_status({ format("saved {} selections", context.selections().size()),
get_face("Information") });
}
void align(Context& context, NormalParams)
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{
auto& selections = context.selections();
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auto& buffer = context.buffer();
const ColumnCount tabstop = context.options()["tabstop"].get<int>();
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Vector<Vector<const Selection*>> columns;
LineCount last_line = -1;
size_t column = 0;
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for (auto& sel : selections)
{
auto line = sel.cursor().line;
if (sel.anchor().line != line)
throw runtime_error("align cannot work with multi line selections");
column = (line == last_line) ? column + 1 : 0;
if (column >= columns.size())
columns.resize(column+1);
columns[column].push_back(&sel);
last_line = line;
}
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const bool use_tabs = context.options()["aligntab"].get<bool>();
for (auto& col : columns)
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{
ColumnCount maxcol = 0;
for (auto& sel : col)
maxcol = std::max(get_column(buffer, tabstop, sel->cursor()), maxcol);
for (auto& sel : col)
{
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auto insert_coord = sel->min();
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ColumnCount lastcol = get_column(buffer, tabstop, sel->cursor());
ColumnCount inscount = maxcol - lastcol;
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String padstr;
if (not use_tabs)
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padstr = String{ ' ', inscount };
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else
{
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ColumnCount inscol = get_column(buffer, tabstop, insert_coord);
ColumnCount targetcol = inscol + inscount;
ColumnCount tabcol = inscol - (inscol % tabstop);
CharCount tabs = (int)((targetcol - tabcol) / tabstop);
CharCount spaces = (int)(targetcol - (tabs ? (tabcol + (int)tabs * tabstop) : inscol));
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padstr = String{ '\t', tabs } + String{ ' ', spaces };
}
buffer.insert(insert_coord, padstr);
}
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selections.update();
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}
}
void copy_indent(Context& context, NormalParams params)
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{
int selection = params.count;
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auto& buffer = context.buffer();
auto& selections = context.selections();
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Vector<LineCount> lines;
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for (auto sel : selections)
{
for (LineCount l = sel.min().line; l < sel.max().line + 1; ++l)
lines.push_back(l);
}
if (selection > selections.size())
throw runtime_error("invalid selection index");
if (selection == 0)
selection = context.selections().main_index() + 1;
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auto ref_line = selections[selection-1].min().line;
auto line = buffer[ref_line];
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auto it = line.begin();
while (it != line.end() and is_horizontal_blank(*it))
++it;
const StringView indent = line.substr(0_byte, (int)(it-line.begin()));
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ScopedEdition edition{context};
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for (auto& l : lines)
{
if (l == ref_line)
continue;
auto line = buffer[l];
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ByteCount i = 0;
while (i < line.length() and is_horizontal_blank(line[i]))
++i;
buffer.replace(l, {l, i}, indent);
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}
}
void tabs_to_spaces(Context& context, NormalParams params)
{
auto& buffer = context.buffer();
const ColumnCount opt_tabstop = context.options()["tabstop"].get<int>();
const ColumnCount tabstop = params.count == 0 ? opt_tabstop : params.count;
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Vector<Selection> tabs;
Vector<String> spaces;
for (auto& sel : context.selections())
{
for (auto it = buffer.iterator_at(sel.min()),
end = buffer.iterator_at(sel.max())+1; it != end; ++it)
{
if (*it == '\t')
{
ColumnCount col = get_column(buffer, opt_tabstop, it.coord());
ColumnCount end_col = (col / tabstop + 1) * tabstop;
tabs.emplace_back(it.coord());
spaces.emplace_back(' ', end_col - col);
}
}
}
if (not tabs.empty())
SelectionList{ buffer, std::move(tabs) }.insert(spaces, InsertMode::Replace);
}
void spaces_to_tabs(Context& context, NormalParams params)
{
auto& buffer = context.buffer();
const ColumnCount opt_tabstop = context.options()["tabstop"].get<int>();
const ColumnCount tabstop = params.count == 0 ? opt_tabstop : params.count;
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Vector<Selection> spaces;
for (auto& sel : context.selections())
{
for (auto it = buffer.iterator_at(sel.min()),
end = buffer.iterator_at(sel.max())+1; it != end;)
{
if (*it == ' ')
{
auto spaces_beg = it;
auto spaces_end = spaces_beg+1;
ColumnCount col = get_column(buffer, opt_tabstop, spaces_end.coord());
while (spaces_end != end and
*spaces_end == ' ' and (col % tabstop) != 0)
{
++spaces_end;
++col;
}
if ((col % tabstop) == 0)
spaces.emplace_back(spaces_beg.coord(), (spaces_end-1).coord());
else if (spaces_end != end and *spaces_end == '\t')
spaces.emplace_back(spaces_beg.coord(), spaces_end.coord());
it = spaces_end;
}
else
++it;
}
}
if (not spaces.empty())
SelectionList{ buffer, std::move(spaces) }.insert("\t"_str, InsertMode::Replace);
}
SelectionList read_selections_from_register(char reg, Context& context)
{
if (not is_basic_alpha(reg) and reg != '^')
throw runtime_error("selections can only be saved to the '^' and alphabetic registers");
auto content = RegisterManager::instance()[reg].get(context);
if (content.size() != 1)
throw runtime_error(format("Register {} does not contain a selections desc", reg));
StringView desc = content[0];
auto arobase = find(desc, '@');
auto percent = find(desc, '%');
if (arobase == desc.end() or percent == desc.end())
throw runtime_error(format("Register {} does not contain a selections desc", reg));
Buffer& buffer = BufferManager::instance().get_buffer({arobase+1, percent});
size_t timestamp = str_to_int({percent + 1, desc.end()});
auto sels = StringView{desc.begin(), arobase} | split<StringView>(':')
| transform(selection_from_string)
| gather<Vector<Selection>>();
if (sels.empty())
throw runtime_error(format("Register {} contains an empty selection list", reg));
return {SelectionList::UnsortedTag{}, buffer, std::move(sels), timestamp};
}
enum class CombineOp
{
Append,
Union,
Intersect,
SelectLeftmostCursor,
SelectRightmostCursor,
SelectLongest,
SelectShortest,
};
CombineOp key_to_combine_op(Key key)
{
switch (key.key)
{
case 'a': return CombineOp::Append;
case 'u': return CombineOp::Union;
case 'i': return CombineOp::Intersect;
case '<': return CombineOp::SelectLeftmostCursor;
case '>': return CombineOp::SelectRightmostCursor;
case '+': return CombineOp::SelectLongest;
case '-': return CombineOp::SelectShortest;
}
throw runtime_error{format("unknown combine operator '{}'", key.key)};
}
void combine_selection(const Buffer& buffer, Selection& sel, const Selection& other, CombineOp op)
{
switch (op)
{
case CombineOp::Union:
sel.set(std::min(sel.min(), other.min()),
std::max(sel.max(), other.max()));
break;
case CombineOp::Intersect:
sel.set(std::max(sel.min(), other.min()),
std::min(sel.max(), other.max()));
break;
case CombineOp::SelectLeftmostCursor:
if (sel.cursor() > other.cursor())
sel = other;
break;
case CombineOp::SelectRightmostCursor:
if (sel.cursor() < other.cursor())
sel = other;
break;
case CombineOp::SelectLongest:
if (char_length(buffer, sel) < char_length(buffer, other))
sel = other;
break;
case CombineOp::SelectShortest:
if (char_length(buffer, sel) > char_length(buffer, other))
sel = other;
break;
default: kak_assert(false);
}
}
template<typename Func>
void combine_selections(Context& context, SelectionList list, Func func)
{
if (&context.buffer() != &list.buffer())
throw runtime_error{"cannot combine selections from different buffers"};
on_next_key_with_autoinfo(context, KeymapMode::None,
[func, list](Key key, Context& context) mutable {
if (key == Key::Escape)
return;
const auto op = key_to_combine_op(key);
auto& sels = context.selections();
list.update();
if (op == CombineOp::Append)
{
const auto main_index = list.size() + sels.main_index();
for (auto& sel : sels)
list.push_back(sel);
list.set_main_index(main_index);
list.sort_and_merge_overlapping();
}
else
{
if (list.size() != sels.size())
throw runtime_error{"The two selection lists dont have the same number of elements"};
for (int i = 0; i < list.size(); ++i)
combine_selection(sels.buffer(), list[i], sels[i], op);
list.set_main_index(sels.main_index());
}
func(context, std::move(list));
}, "enter combining operator",
"'a': append lists\n"
"'u': union\n"
"'i': intersection\n"
"'<': select leftmost cursor\n"
"'>': select rightmost cursor\n"
"'+': select longest\n"
"'-': select shortest\n");
}
template<bool combine>
void save_selections(Context& context, NormalParams params)
{
const char reg = to_lower(params.reg ? params.reg : '^');
if (not is_basic_alpha(reg) and reg != '^')
throw runtime_error("selections can only be saved to the '^' and alphabetic registers");
auto content = RegisterManager::instance()[reg].get(context);
const bool empty = content.size() == 1 and content[0].empty();
auto save_to_reg = [reg](Context& context, const SelectionList& sels) {
String desc = format("{}@{}%{}", selection_list_to_string(sels),
context.buffer().name(),
context.buffer().timestamp());
RegisterManager::instance()[reg].set(context, desc);
context.print_status({format("{} selections to register '{}'", combine ? "Combined" : "Saved", reg), get_face("Information")});
};
if (combine and not empty)
combine_selections(context, read_selections_from_register(reg, context), save_to_reg);
else
save_to_reg(context, context.selections());
}
template<bool combine>
void restore_selections(Context& context, NormalParams params)
{
const char reg = to_lower(params.reg ? params.reg : '^');
auto selections = read_selections_from_register(reg, context);
auto set_selections = [reg](Context& context, SelectionList sels) {
context.selections_write_only() = std::move(sels);
context.print_status({format("{} selections from register '{}'", combine ? "Combined" : "Restored", reg), get_face("Information")});
};
if (not combine)
{
if (&selections.buffer() != &context.buffer())
context.change_buffer(selections.buffer());
set_selections(context, std::move(selections));
}
else
combine_selections(context, std::move(selections), set_selections);
}
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void undo(Context& context, NormalParams params)
{
Buffer& buffer = context.buffer();
size_t timestamp = buffer.timestamp();
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if (buffer.undo(std::max(1, params.count)))
{
auto ranges = compute_modified_ranges(buffer, timestamp);
if (not ranges.empty())
context.selections_write_only() = std::move(ranges);
}
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else
throw runtime_error("nothing left to undo");
}
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void redo(Context& context, NormalParams params)
{
Buffer& buffer = context.buffer();
size_t timestamp = buffer.timestamp();
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if (buffer.redo(std::max(1, params.count)))
{
auto ranges = compute_modified_ranges(buffer, timestamp);
if (not ranges.empty())
context.selections_write_only() = std::move(ranges);
}
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else
throw runtime_error("nothing left to redo");
}
template<Direction direction>
void move_in_history(Context& context, NormalParams params)
{
Buffer& buffer = context.buffer();
size_t timestamp = buffer.timestamp();
const int count = std::max(1, params.count);
const int history_id = (int)buffer.current_history_id() +
(direction == Direction::Forward ? count : -count);
const int max_history_id = (int)buffer.next_history_id() - 1;
if (buffer.move_to((size_t)history_id))
{
auto ranges = compute_modified_ranges(buffer, timestamp);
if (not ranges.empty())
context.selections_write_only() = std::move(ranges);
context.selections().avoid_eol();
context.print_status({ format("moved to change #{} ({})",
history_id, max_history_id),
get_face("Information") });
}
else
throw runtime_error(format("no such change: #{} ({})",
history_id, max_history_id));
}
void exec_user_mappings(Context& context, NormalParams params)
{
on_next_key_with_autoinfo(context, KeymapMode::None,
[params](Key key, Context& context) mutable {
if (not context.keymaps().is_mapped(key, KeymapMode::User))
return;
auto& mapping = context.keymaps().get_mapping(key, KeymapMode::User);
ScopedSetBool disable_keymaps(context.keymaps_disabled());
InputHandler::ScopedForceNormal force_normal{context.input_handler(), params};
ScopedEdition edition(context);
for (auto& key : mapping.keys)
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context.input_handler().handle_key(key);
}, "user mapping",
build_autoinfo_for_mapping(context, KeymapMode::User, {}));
}
template<bool above>
void add_empty_line(Context& context, NormalParams params)
{
int count = std::max(params.count, 1);
String new_lines{'\n', CharCount{count}};
auto& buffer = context.buffer();
auto& sels = context.selections();
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ScopedEdition edition{context};
for (int i = 0; i < sels.size(); ++i)
{
auto line = (above ? sels[i].min().line : sels[i].max().line + 1) + (i * count);
buffer.insert(line, new_lines);
}
}
template<typename T>
class Repeated
{
public:
constexpr Repeated(T t) : m_func(t) {}
void operator() (Context& context, NormalParams params)
{
ScopedEdition edition(context);
do { m_func(context, {0, params.reg}); } while(--params.count > 0);
}
private:
T m_func;
};
template<void (*func)(Context&, NormalParams)>
void repeated(Context& context, NormalParams params)
{
ScopedEdition edition(context);
do { func(context, {0, params.reg}); } while(--params.count > 0);
}
template<typename Type, Direction direction, SelectMode mode = SelectMode::Replace>
void move(Context& context, NormalParams params)
{
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kak_assert(mode == SelectMode::Replace or mode == SelectMode::Extend);
Type offset(std::max(params.count,1));
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if (direction == Backward)
offset = -offset;
const ColumnCount tabstop = context.options()["tabstop"].get<int>();
auto& selections = context.selections();
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for (auto& sel : selections)
{
auto cursor = context.buffer().offset_coord(sel.cursor(), offset, tabstop, true);
sel.anchor() = mode == SelectMode::Extend ? sel.anchor() : cursor;
sel.cursor() = cursor;
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}
selections.sort();
if (std::is_same<Type, LineCount>::value)
selections.avoid_eol();
selections.merge_overlapping();
}
void select_whole_buffer(Context& context, NormalParams)
{
select_buffer(context.selections());
}
void keep_selection(Context& context, NormalParams p)
{
auto& selections = context.selections();
const int index = p.count ? p.count-1 : selections.main_index();
if (index >= selections.size())
throw runtime_error{format("invalid selection index: {}", index)};
selections = SelectionList{ selections.buffer(), std::move(selections[index]) };
selections.check_invariant();
}
void remove_selection(Context& context, NormalParams p)
{
auto& selections = context.selections();
const int index = p.count ? p.count-1 : selections.main_index();
if (index >= selections.size())
throw runtime_error{format("invalid selection index: {}", index)};
if (selections.size() == 1)
throw runtime_error{"Cannot remove the last selection"};
selections.remove(index);
selections.check_invariant();
}
void clear_selections(Context& context, NormalParams)
{
for (auto& sel : context.selections())
sel.anchor() = sel.cursor();
}
void flip_selections(Context& context, NormalParams)
{
for (auto& sel : context.selections())
{
const BufferCoord tmp = sel.anchor();
sel.anchor() = sel.cursor();
sel.cursor() = tmp;
}
context.selections().check_invariant();
}
void ensure_forward(Context& context, NormalParams)
{
for (auto& sel : context.selections())
{
const BufferCoord min = sel.min(), max = sel.max();
sel.anchor() = min;
sel.cursor() = max;
}
context.selections().check_invariant();
}
void merge_consecutive(Context& context, NormalParams params)
{
ensure_forward(context, params);
context.selections().merge_consecutive();
}
void force_redraw(Context& context, NormalParams)
{
if (context.has_client())
{
context.client().force_redraw();
context.client().redraw_ifn();
}
}
template<typename T, MemoryDomain domain>
using KeymapBackend = Vector<T, domain>;
static const HashMap<Key, NormalCmd, MemoryDomain::Undefined, KeymapBackend> keymap = {
{ {'h'}, {"move left", move<CharCount, Backward>} },
{ {'j'}, {"move down", move<LineCount, Forward>} },
{ {'k'}, {"move up", move<LineCount, Backward>} },
{ {'l'}, {"move right", move<CharCount, Forward>} },
{ {Key::Left}, { "move left", move<CharCount, Backward>} },
{ {Key::Down}, { "move down", move<LineCount, Forward>} },
{ {Key::Up}, { "move up", move<LineCount, Backward>} },
{ {Key::Right}, {"move right", move<CharCount, Forward>} },
{ {'H'}, {"extend left", move<CharCount, Backward, SelectMode::Extend>} },
{ {'J'}, {"extend down", move<LineCount, Forward, SelectMode::Extend>} },
{ {'K'}, {"extend up", move<LineCount, Backward, SelectMode::Extend>} },
{ {'L'}, {"extend right", move<CharCount, Forward, SelectMode::Extend>} },
{ {'t'}, {"select to next character", select_to_next_char<SelectFlags::None>} },
{ {'f'}, {"select to next character included", select_to_next_char<SelectFlags::Inclusive>} },
{ {'T'}, {"extend to next character", select_to_next_char<SelectFlags::Extend>} },
{ {'F'}, {"extend to next character included", select_to_next_char<SelectFlags::Inclusive | SelectFlags::Extend>} },
{ {alt('t')}, {"select to previous character", select_to_next_char<SelectFlags::Reverse>} },
{ {alt('f')}, {"select to previous character included", select_to_next_char<SelectFlags::Inclusive | SelectFlags::Reverse>} },
{ {alt('T')}, {"extend to previous character", select_to_next_char<SelectFlags::Extend | SelectFlags::Reverse>} },
{ {alt('F')}, {"extend to previous character included", select_to_next_char<SelectFlags::Inclusive | SelectFlags::Extend | SelectFlags::Reverse>} },
{ {'d'}, {"erase selected text", erase_selections<true>} },
{ {alt('d')}, {"erase selected text, without yanking", erase_selections<false>} },
{ {'c'}, {"change selected text", change<true>} },
{ {alt('c')}, {"change selected text, without yanking", change<false>} },
{ {'i'}, {"insert before selected text", enter_insert_mode<InsertMode::Insert>} },
{ {'I'}, {"insert at line begin", enter_insert_mode<InsertMode::InsertAtLineBegin>} },
{ {'a'}, {"insert after selected text", enter_insert_mode<InsertMode::Append>} },
{ {'A'}, {"insert at line end", enter_insert_mode<InsertMode::AppendAtLineEnd>} },
{ {'o'}, {"insert on new line below", enter_insert_mode<InsertMode::OpenLineBelow>} },
{ {'O'}, {"insert on new line above", enter_insert_mode<InsertMode::OpenLineAbove>} },
{ {'r'}, {"replace with character", replace_with_char} },
{ {alt('o')}, {"add a new empty line below", add_empty_line<false>} },
{ {alt('O')}, {"add a new empty line above", add_empty_line<true>} },
{ {'g'}, {"go to location", goto_commands<SelectMode::Replace>} },
{ {'G'}, {"extend to location", goto_commands<SelectMode::Extend>} },
{ {'v'}, {"move view", view_commands<false>} },
{ {'V'}, {"move view (locked)", view_commands<true>} },
{ {'y'}, {"yank selected text", yank} },
{ {'p'}, {"paste after selected text", repeated<paste<InsertMode::Append>>} },
{ {'P'}, {"paste before selected text", repeated<paste<InsertMode::Insert>>} },
{ {alt('p')}, {"paste every yanked selection after selected text", paste_all<InsertMode::Append>} },
{ {alt('P')}, {"paste every yanked selection before selected text", paste_all<InsertMode::Insert>} },
{ {'R'}, {"replace selected text with yanked text", paste<InsertMode::Replace>} },
{ {alt('R')}, {"replace selected text with every yanked text", paste_all<InsertMode::Replace>} },
{ {'s'}, {"select regex matches in selected text", select_regex} },
{ {'S'}, {"split selected text on regex matches", split_regex} },
{ {alt('s')}, {"split selected text on line ends", split_lines} },
{ {alt('S')}, {"select selection boundaries", select_boundaries} },
{ {'.'}, {"repeat last insert command", repeat_last_insert} },
{ {alt('.')}, {"repeat last object select/character find", repeat_last_select} },
{ {'%'}, {"select whole buffer", select_whole_buffer} },
{ {':'}, {"enter command prompt", command} },
{ {'|'}, {"pipe each selection through filter and replace with output", pipe<true>} },
{ {alt('|')}, {"pipe each selection through command and ignore output", pipe<false>} },
{ {'!'}, {"insert command output", insert_output<InsertMode::Insert>} },
{ {alt('!')}, {"append command output", insert_output<InsertMode::Append>} },
{ {' '}, {"remove all selections except main", keep_selection} },
{ {alt(' ')}, {"remove main selection", remove_selection} },
{ {';'}, {"reduce selections to their cursor", clear_selections} },
{ {alt(';')}, {"swap selections cursor and anchor", flip_selections} },
{ {alt(':')}, {"ensure selection cursor is after anchor", ensure_forward} },
{ {alt('m')}, {"merge consecutive selections", merge_consecutive} },
{ {'w'}, {"select to next word start", repeated<&select<SelectMode::Replace, select_to_next_word<Word>>>} },
{ {'e'}, {"select to next word end", repeated<select<SelectMode::Replace, select_to_next_word_end<Word>>>} },
{ {'b'}, {"select to previous word start", repeated<select<SelectMode::Replace, select_to_previous_word<Word>>>} },
{ {'W'}, {"extend to next word start", repeated<select<SelectMode::Extend, select_to_next_word<Word>>>} },
{ {'E'}, {"extend to next word end", repeated<select<SelectMode::Extend, select_to_next_word_end<Word>>>} },
{ {'B'}, {"extend to previous word start", repeated<select<SelectMode::Extend, select_to_previous_word<Word>>>} },
{ {alt('w')}, {"select to next WORD start", repeated<select<SelectMode::Replace, select_to_next_word<WORD>>>} },
{ {alt('e')}, {"select to next WORD end", repeated<select<SelectMode::Replace, select_to_next_word_end<WORD>>>} },
{ {alt('b')}, {"select to previous WORD start", repeated<select<SelectMode::Replace, select_to_previous_word<WORD>>>} },
{ {alt('W')}, {"extend to next WORD start", repeated<select<SelectMode::Extend, select_to_next_word<WORD>>>} },
{ {alt('E')}, {"extend to next WORD end", repeated<select<SelectMode::Extend, select_to_next_word_end<WORD>>>} },
{ {alt('B')}, {"extend to previous WORD start", repeated<select<SelectMode::Extend, select_to_previous_word<WORD>>>} },
{ {alt('l')}, {"select to line end", repeated<select<SelectMode::Replace, select_to_line_end<false>>>} },
{ {Key::End}, {"select to line end", repeated<select<SelectMode::Replace, select_to_line_end<false>>>} },
{ {alt('L')}, {"extend to line end", repeated<select<SelectMode::Extend, select_to_line_end<false>>>} },
{ {alt('h')}, {"select to line begin", repeated<select<SelectMode::Replace, select_to_line_begin<false>>>} },
{ {Key::Home}, {"select to line begin", repeated<select<SelectMode::Replace, select_to_line_begin<false>>>} },
{ {alt('H')}, {"extend to line begin", repeated<select<SelectMode::Extend, select_to_line_begin<false>>>} },
{ {'x'}, {"select line", repeated<select<SelectMode::Replace, select_line>>} },
{ {'X'}, {"extend line", repeated<select<SelectMode::Extend, select_line>>} },
{ {alt('x')}, {"extend selections to whole lines", select<SelectMode::Replace, select_lines>} },
{ {alt('X')}, {"crop selections to whole lines", select<SelectMode::Replace, trim_partial_lines>} },
{ {'m'}, {"select to matching character", select<SelectMode::Replace, select_matching>} },
{ {'M'}, {"extend to matching character", select<SelectMode::Extend, select_matching>} },
{ {'/'}, {"select next given regex match", search<SelectMode::Replace, MatchDirection::Forward>} },
{ {'?'}, {"extend with next given regex match", search<SelectMode::Extend, MatchDirection::Forward>} },
{ {alt('/')}, {"select previous given regex match", search<SelectMode::Replace, MatchDirection::Backward>} },
{ {alt('?')}, {"extend with previous given regex match", search<SelectMode::Extend, MatchDirection::Backward>} },
{ {'n'}, {"select next current search pattern match", search_next<SelectMode::Replace, MatchDirection::Forward>} },
{ {'N'}, {"extend with next current search pattern match", search_next<SelectMode::Append, MatchDirection::Forward>} },
{ {alt('n')}, {"select previous current search pattern match", search_next<SelectMode::Replace, MatchDirection::Backward>} },
{ {alt('N')}, {"extend with previous current search pattern match", search_next<SelectMode::Append, MatchDirection::Backward>} },
{ {'*'}, {"set search pattern to main selection content", use_selection_as_search_pattern<true>} },
{ {alt('*')}, {"set search pattern to main selection content, do not detect words", use_selection_as_search_pattern<false>} },
{ {'u'}, {"undo", undo} },
{ {'U'}, {"redo", redo} },
{ {alt('u')}, {"move backward in history", move_in_history<Direction::Backward>} },
{ {alt('U')}, {"move forward in history", move_in_history<Direction::Forward>} },
{ {alt('i')}, {"select inner object", select_object<ObjectFlags::ToBegin | ObjectFlags::ToEnd | ObjectFlags::Inner>} },
{ {alt('a')}, {"select whole object", select_object<ObjectFlags::ToBegin | ObjectFlags::ToEnd>} },
{ {'['}, {"select to object start", select_object<ObjectFlags::ToBegin>} },
{ {']'}, {"select to object end", select_object<ObjectFlags::ToEnd>} },
{ {'{'}, {"extend to object start", select_object<ObjectFlags::ToBegin, SelectMode::Extend>} },
{ {'}'}, {"extend to object end", select_object<ObjectFlags::ToEnd, SelectMode::Extend>} },
{ {alt('[')}, {"select to inner object start", select_object<ObjectFlags::ToBegin | ObjectFlags::Inner>} },
{ {alt(']')}, {"select to inner object end", select_object<ObjectFlags::ToEnd | ObjectFlags::Inner>} },
{ {alt('{')}, {"extend to inner object start", select_object<ObjectFlags::ToBegin | ObjectFlags::Inner, SelectMode::Extend>} },
{ {alt('}')}, {"extend to inner object end", select_object<ObjectFlags::ToEnd | ObjectFlags::Inner, SelectMode::Extend>} },
{ {alt('j')}, {"join lines", join_lines} },
{ {alt('J')}, {"join lines and select spaces", join_lines_select_spaces} },
{ {alt('k')}, {"keep selections matching given regex", keep<true>} },
{ {alt('K')}, {"keep selections not matching given regex", keep<false>} },
{ {'$'}, {"pipe each selection through shell command and keep the ones whose command succeed", keep_pipe} },
{ {'<'}, {"deindent", deindent<true>} },
{ {'>'}, {"indent", indent<false>} },
{ {alt('>')}, {"indent, including empty lines", indent<true>} },
{ {alt('<')}, {"deindent, not including incomplete indent", deindent<false>} },
{ {/*ctrl('i')*/Key::Tab}, {"jump forward in jump list",jump<Forward>} }, // until we can distinguish tab a ctrl('i')
{ {ctrl('o')}, {"jump backward in jump list", jump<Backward>} },
{ {ctrl('s')}, {"push current selections in jump list", push_selections} },
{ {'\''}, {"rotate main selection forward", rotate_selections<Forward>} },
{ {alt('\'')}, {"rotate main selection backward", rotate_selections<Backward>} },
{ {alt('"')}, {"rotate selections content", rotate_selections_content} },
{ {'q'}, {"replay recorded macro", replay_macro} },
{ {'Q'}, {"start or end macro recording", start_or_end_macro_recording} },
{ {Key::Escape}, {"end macro recording", end_macro_recording} },
{ {'`'}, {"convert to lower case in selections", for_each_codepoint<to_lower>} },
{ {'~'}, {"convert to upper case in selections", for_each_codepoint<to_upper>} },
{ {alt('`')}, { "swap case in selections", for_each_codepoint<swap_case>} },
{ {'&'}, {"align selection cursors", align} },
{ {alt('&')}, {"copy indentation", copy_indent} },
{ {'@'}, {"convert tabs to spaces in selections", tabs_to_spaces} },
{ {alt('@')}, {"convert spaces to tabs in selections", spaces_to_tabs} },
{ {'C'}, {"copy selection on next lines", copy_selections_on_next_lines<Forward>} },
{ {alt('C')}, {"copy selection on previous lines", copy_selections_on_next_lines<Backward>} },
{ {','}, {"user mappings", exec_user_mappings} },
{ {Key::PageUp}, { "scroll one page up", scroll<Backward>} },
{ {Key::PageDown}, {"scroll one page down", scroll<Forward>} },
{ {ctrl('b')}, {"scroll one page up", scroll<Backward >} },
{ {ctrl('f')}, {"scroll one page down", scroll<Forward>} },
{ {ctrl('u')}, {"scroll half a page up", scroll<Backward, true>} },
{ {ctrl('d')}, {"scroll half a page down", scroll<Forward, true>} },
{ {'z'}, {"restore selections from register", restore_selections<false>} },
{ {alt('z')}, {"combine selections from register", restore_selections<true>} },
{ {'Z'}, {"save selections to register", save_selections<false>} },
{ {alt('Z')}, {"combine selections to register", save_selections<true>} },
{ {ctrl('l')}, {"force redraw", force_redraw} },
};
Optional<NormalCmd> get_normal_command(Key key)
{
auto it = keymap.find(key);
if (it != keymap.end())
return it->value;
return {};
}
}