Files
msime-windows/engine/core/input_session_candidates.cpp
Jia Suiandfanlusky 60c2b26698 fix(engine,server): 全拼纠错收窄「多字」纠错并让开关真正关闭纠错 (#889)
* fix(engine,server): 全拼多字纠错收窄为仅 QWERTY 邻键插入

多字(插入)纠错只保留「误插 QWERTY 邻键」:生成器 insertion_variants 不再生成重复相邻键(双击),生成式空间不再生成任意字母插入(远键插入)。autocorrect_table.h 随生成器重新生成。

* fix(engine): 全拼纠错开关关闭时真正不再改写切分

纠错开关关掉后真正不纠错:把手误拼写别名层从常开改为跟掩码走(ü 归一 jv->ju / nue->nve 仍常开);两个早于掩码可知的切分入口 QuanpinScheme::build_request 与 QuanpinDictionary::get_or_compute_segments 显式带上掩码,切分缓存键随之隔离。

* fix(engine,server): 纠错开关关闭时辅助码、写回与排序上下文也按字面切分

关掉全拼纠错后,只有方案的 build_request 和查询自身切分不再跑手误别名层,
其余几条路径仍用默认(带别名)的切分,和查询落在不同的键上:

- 辅助码路径自己切底串作为显式切分交给词典,haoyonga 仍被切成 hao'yong'ga;
- 调频、造词、删词、建 SQL、校验去掉分隔符后重切,开关关掉时选中 hao'yong'a
  的词会去更新 hao'yong'ga,调频静默失败;
- 排序 / 固定位置的上下文 key(引擎与 server 两处)仍按别名切,laing 与 liang
  的固定位置互相串。

改动:
- cut_pinyin_by_mode 的 include_correction_aliases 改为必填,每个调用点显式决定;
  双拼词典、设置页词库校验和离线工具传 true,保持原行为。
- 新增 quanpin::correction_aliases_enabled,方案、词典、辅助码与排序 key 共用
  (只看换位、邻键两位),修正只带删除 / 插入位的掩码在方案与词典两层判断不一致。
- 词典按最近一次 query 的掩码记录别名开关,写回路径统一走 cut_for_write。
- 会话改为在换方案、改开关时 bind_quanpin_scheme 一次,不再每次 refresh 下发。
- 方案只存 bool;jv -> ju 放回纠错表,去掉合并表。
- 在 CI 实际执行的 test_input_session 中补回归用例(写回、辅助码、固定位置、
  方案掩码),每条都确认回退修复后会失败。

---------

Co-authored-by: fanlusky <1730976608@qq.com>
2026-10-12 20:41:23 +08:00

189 lines
9.4 KiB
C++

#include "input_session.h"
#include "data_path.h"
#include "../common/helpcode_utils.h"
#include "../contracts/assets/assets.h"
#include "../user_dictionary/user_dictionary_journal.h"
#include "../local_modes/jianpin_query.h"
#include "../quanpin/quanpin_utils.h"
#include <algorithm>
#include <cctype>
namespace metasequoia
{
void InputSession::enable_fixed_positions()
{
fixed_positions_enabled_ = true;
update_mixed_candidates();
}
std::string InputSession::position_context(bool english, bool wubi) const
{
if (english)
{
std::string input = dedicated_english_mode_ ? dedicated_english_preedit_
: (local_input_mode_ == LocalInputMode::TemporaryEnglish
? local_preedit_.substr(1)
: engine_.get_request().raw_input_with_cases);
std::transform(input.begin(), input.end(), input.begin(),
[](unsigned char c) { return static_cast<char>(std::tolower(c)); });
return "english:" + input;
}
if (local_input_mode_ == LocalInputMode::SuperJianpin)
return local_modes::jianpin_ranking_context(local_preedit_.substr(1), scheme(), shuangpin_profile_);
if (wubi)
return engine_.get_request().raw_input;
std::string context = get_quanpin();
if (context.empty())
context = get_pinyin_segmentation();
if (engine_.get_request().raw_input.size() == 1)
return context;
auto plain = context;
plain.erase(std::remove(plain.begin(), plain.end(), '\''), plain.end());
// 全拼的上下文 key 跟查询走同一个纠错开关:关掉纠错时 laing 的候选按字面 lai'ng 出,
// key 若仍被别名层切成 liang,两组固定位置会互相串。双拼词典不受全拼开关管,保持原样。
const bool correction_aliases =
scheme() == SchemeType::Shuangpin || quanpin::correction_aliases_enabled(quanpin_autocorrect_types_);
const auto cuts = quanpin::cut_pinyin_by_mode(plain, "correction", correction_aliases);
return cuts.empty() ? context : quanpin::join_segments(cuts.front());
}
void InputSession::apply_candidate_positions(std::vector<WordItem> &items)
{
if (!fixed_positions_enabled_ || items.empty())
return;
const auto journal = path_to_utf8(paths_.user(assets::user_journal));
const bool super_jianpin = local_input_mode_ == LocalInputMode::SuperJianpin;
const bool regular =
local_input_mode_ == LocalInputMode::None && !dedicated_english_mode_ && scheme() != SchemeType::JapaneseRomaji;
if (regular && is_wubi())
{
// 混输组合里五笔与拼音候选共存,固定位置必须按候选自己的上下文分别结算:五笔候选
// 写的是码,拼音候选写的是全拼,混进一个 context 会互相错配。两个分区各自排序后按
// 「五笔在前、拼音在后」拼回,主方案(五笔)的位置语义原样保留。
std::vector<WordItem> wubi_items;
std::vector<WordItem> pinyin_items;
for (auto &item : items)
{
(is_wubi_native_candidate(item) ? wubi_items : pinyin_items).push_back(std::move(item));
}
const bool include_missing = engine_.get_request().raw_input.size() == 1;
if (!wubi_items.empty())
{
user_dictionary::apply_fixed_positions(
journal, position_context(false, true), wubi_items, include_missing,
[this](const std::string &key, const std::string &word) {
return engine_.find_candidate(SchemeType::Wubi, key, word);
},
has_active_helpcode());
}
if (!pinyin_items.empty())
{
user_dictionary::apply_fixed_positions(
journal, position_context(false, false), pinyin_items, include_missing,
[this](const std::string &key, const std::string &word) {
return engine_.find_candidate(SchemeType::Quanpin, key, word);
},
has_active_helpcode());
}
// include_missing 会把固定在拼音上下文的词从词库补回来,它可能正是五笔分区已经列出的词。
// 合并时同词只留五笔那份,和 ImeSession::refresh_candidates 的去重规则一致。
pinyin_items.erase(std::remove_if(pinyin_items.begin(), pinyin_items.end(),
[&wubi_items](const WordItem &pinyin_item) {
return std::any_of(wubi_items.begin(), wubi_items.end(),
[&pinyin_item](const WordItem &wubi_item) {
return wubi_item.word == pinyin_item.word;
});
}),
pinyin_items.end());
items.clear();
items.insert(items.end(), std::make_move_iterator(wubi_items.begin()),
std::make_move_iterator(wubi_items.end()));
items.insert(items.end(), std::make_move_iterator(pinyin_items.begin()),
std::make_move_iterator(pinyin_items.end()));
}
else if (regular)
{
user_dictionary::apply_fixed_positions(
journal, position_context(false, false), items, engine_.get_request().raw_input.size() == 1,
[this](const std::string &key, const std::string &word) {
return engine_.find_candidate(scheme(), key, word);
},
has_active_helpcode());
}
else if (super_jianpin)
{
user_dictionary::apply_fixed_positions(journal, position_context(false, false), items, false);
}
if (std::any_of(items.begin(), items.end(),
[](const auto &item) { return item.source == CandidateSource::EnglishDictionary; }))
user_dictionary::apply_fixed_positions(journal, position_context(true, false), items, false, {}, true);
}
KeyResult InputSession::set_candidate_position(std::size_t index, int position)
{
if (position < 0 || position > 5 || index >= candidates().size())
return {};
const auto selected = candidates()[index];
const bool english = selected.source == CandidateSource::EnglishDictionary;
if (!english &&
((selected.source != CandidateSource::Database && selected.source != CandidateSource::UserDatabase) ||
scheme() == SchemeType::JapaneseRomaji))
return {};
const bool wubi = is_wubi_native_candidate(selected) && local_input_mode_ != LocalInputMode::SuperJianpin;
const auto context = position_context(english, wubi);
const auto key = english || wubi
? selected.pinyin
: (selected.canonical_pinyin.empty() ? selected.pinyin : selected.canonical_pinyin);
if (context.empty() || key.empty())
return {};
const auto journal = path_to_utf8(paths_.user(assets::user_journal));
const bool ok = position == 0 ? user_dictionary::clear_fixed_position(journal, context, key, selected.word)
: user_dictionary::set_fixed_position(journal, context, key, selected.word, position);
if (!ok)
return {true, std::nullopt, "Unable to persist candidate position."};
reset_cache();
if (dedicated_english_mode_)
update_dedicated_english_candidates();
else if (local_input_mode_ != LocalInputMode::None)
return {true, std::nullopt, update_local_candidates()};
else
recompute_candidates();
return {true, std::nullopt, std::nullopt};
}
KeyResult InputSession::remove_candidate(std::size_t index)
{
if (index >= candidates().size())
return {};
const auto selected = candidates()[index];
const bool english = selected.source == CandidateSource::EnglishDictionary;
if (!english &&
((selected.source != CandidateSource::Database && selected.source != CandidateSource::UserDatabase) ||
scheme() == SchemeType::JapaneseRomaji || HelpcodeUtils::count_utf8_chars(selected.word) <= 1))
return {};
const bool wubi = is_wubi_native_candidate(selected) && local_input_mode_ != LocalInputMode::SuperJianpin;
const auto kind = english
? user_dictionary::DictionaryKind::English
: (wubi ? user_dictionary::DictionaryKind::Wubi : user_dictionary::DictionaryKind::Pinyin);
// A displayed pinyin candidate already carries its exact dictionary key. Re-segmenting it
// (or expanding shuangpin again) can delete a different pronunciation of the same word.
const auto &key = english || wubi ? selected.pinyin : selected.canonical_pinyin;
if (key.empty())
return {};
if (!user_dictionary::delete_dictionary_candidate(
path_to_utf8(paths_.dictionary(english ? assets::english_dictionary : assets::main_dictionary)),
path_to_utf8(paths_.user(assets::user_journal)), kind, key, selected.word))
return {true, std::nullopt, "Unable to persist candidate removal."};
reset_cache();
if (dedicated_english_mode_)
update_dedicated_english_candidates();
else if (local_input_mode_ != LocalInputMode::None)
return {true, std::nullopt, update_local_candidates()};
else
recompute_candidates();
return {true, std::nullopt, std::nullopt};
}
} // namespace metasequoia