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Add support for explicit completion in prompt mode

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This commit is contained in:
Maxime Coste 2020-10-19 19:36:58 +11:00
parent 600be827b3
commit f549190a98
2 changed files with 65 additions and 3 deletions
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9
doc/pages/keys.asciidoc
View File

@ -794,6 +794,15 @@ The following keys are recognized by this mode to help with editing
*<c-v>*::
insert next keystroke without interpreting it
*<c-x>*::
explicit completion query, followed by:
*f*:::
explicit file completion
*w*:::
explicit word completion (from current buffer)
*<c-o>*::
toggle automatic completion

59
src/input_handler.cc
View File

@ -17,6 +17,7 @@
#include "user_interface.hh"
#include "utf8.hh"
#include "window.hh"
#include "word_db.hh"
namespace Kakoune
{
@ -929,9 +930,40 @@ public:
m_refresh_completion_pending = true;
}
}
else if (key == ctrl('x'))
{
on_next_key_with_autoinfo(context(), "explicit-completion", KeymapMode::None,
[this](Key key, Context&) {
m_explicit_completer = PromptCompleter{};
if (key.key == 'f')
use_explicit_completer([](const Context& context, StringView token) {
return complete_filename(token, context.options()["ignored_files"].get<Regex>(),
token.length(), FilenameFlags::Expand);
});
else if (key.key == 'w')
use_explicit_completer([](const Context& context, StringView token) {
CandidateList candidates;
for_n_best(get_word_db(context.buffer()).find_matching(token),
100, [](auto& lhs, auto& rhs){ return rhs < lhs; },
[&](RankedMatch& m) {
candidates.push_back(m.candidate().str());
return true;
});
return candidates;
});
if (m_explicit_completer)
refresh_completions(CompletionFlags::None);
}, "enter completion type",
"f: filename\n"
"w: buffer word\n");
}
else if (key == ctrl('o'))
{
m_explicit_completer = PromptCompleter{};
m_auto_complete = not m_auto_complete;
if (m_auto_complete)
refresh_completions(CompletionFlags::Fast);
else if (context().has_client())
@ -995,17 +1027,37 @@ public:
}
private:
template<typename Completer>
void use_explicit_completer(Completer&& completer)
{
m_explicit_completer = [completer](const Context& context, CompletionFlags flags, StringView content, ByteCount cursor_pos) {
Optional<Token> last_token;
CommandParser parser{content.substr(0_byte, cursor_pos)};
while (auto token = parser.read_token(false))
last_token = std::move(token);
if (last_token and (last_token->pos + last_token->content.length() < cursor_pos))
last_token.reset();
auto token_start = last_token.map([&](auto&& t) { return t.pos; }).value_or(cursor_pos);
auto token_content = last_token.map([](auto&& t) -> StringView { return t.content; }).value_or(StringView{});
return Completions{token_start, cursor_pos, completer(context, token_content)};
};
}
void refresh_completions(CompletionFlags flags)
{
try
{
m_refresh_completion_pending = false;
if (not m_completer)
auto& completer = m_explicit_completer ? m_explicit_completer : m_completer;
if (not completer)
return;
m_current_completion = -1;
const String& line = m_line_editor.line();
m_completions = m_completer(context(), flags, line,
line.byte_count_to(m_line_editor.cursor_pos()));
m_completions = completer(context(), flags, line,
line.byte_count_to(m_line_editor.cursor_pos()));
const bool menu = (bool)(m_completions.flags & Completions::Flags::Menu);
if (context().has_client())
{
@ -1075,6 +1127,7 @@ private:
PromptCallback m_callback;
PromptCompleter m_completer;
PromptCompleter m_explicit_completer;
const String m_prompt;
Face m_prompt_face;
Completions m_completions;