fanlusky
3ee2ecdba2
代码审查发现的问题： - finalize() 用 std::unique 按序列去重，但列表按 (edge_count, weight, arrival) 排序，相同序列的重复项并不相邻，会漏去重并 占用 k-best 槽位。改为按序列哈希用 unordered_set 全表去重。 - 每个假设都拼接完整 key 字符串（O(length^2 * k) 分配）仅用于 去重。改用滚动哈希 seq_hash，去掉逐节点字符串物化。 - 合并纠错边时按 min 取所有表（含被禁用表）的权重，会让被关闭 的表泄漏更低的 tie-break 代价。改为查询时仅按启用类型的子集 计算权重（min_enabled_correction_weight）。 - resolve_series_query 在 series-cache 命中前也重跑 k=9 束搜索。 按输入元组缓存 SeriesQueryResolution（纯输入函数，与词典内容 无关，无需失效），退格/重打前缀不再重算。 - mark_autocorrect_candidates 用 any_of 匹配任意备选读音，若某 备选折叠后恰好等于原始字母，会给用户拼对的候选误标 corrected_from。改为仅匹配与原始字母不同的读音。 验证：imetest 全绿；eval_quanpin_autocorrect（mixed/deletion， seed 42，300 样本）R@1/R@3/读音还原与基线逐档一致，p50 略降。
Input engine (engine/)
The C++ conversion engine behind Metasequoia IME for Windows: input sessions, candidate lookup, helpcodes, the shared contracts and the voice module.
This directory used to be a submodule of metasequoiaime/MSIME-Engine. It is now a component of this repository, a sibling of server/, ui/, windows/ and installer/. Its upstream commit, and exactly what the Windows specialization removed, are recorded in UPSTREAM.md. Treat it as first-party code: reviewed, formatted and tested like anything else here, no longer merged from upstream.
| Directory | Purpose |
|---|---|
core/, quanpin/, shuangpin/, english/, japanese/ |
Input sessions and candidate lookup |
contracts/ |
The authoritative IPC wire format, dictionary format, punctuation policy and WebView message schema |
helpcode/ |
Helpcode (形码) tables and generators |
local_modes/, providers/, user_dictionary/ |
Local modes, online candidate sources, the user dictionary |
voice/ |
Recording, WAV encoding, recognition and text cleanup; builds independently |
googlepinyinime-rev/, utfcpp/, voice/third_party/ |
Vendored third-party code, kept in its upstream formatting and licence |
Integration is through <metasequoia/session.h>. See runtime architecture.
Build
The product build does not build this directory on its own: server/CMakeLists.txt pulls it in with add_subdirectory, so CI compiles and exercises the engine through the server and the TSF frontend. After changing something here, run the server's build and tests.
Building it standalone still works and is much faster while working on the engine. Dependencies are CMake 3.25+, a C++17 compiler, Boost, fmt, spdlog and SQLite3.
vcpkg install --triplet x64-windows-static
cmake -S . -B build -DCMAKE_TOOLCHAIN_FILE="$env:VCPKG_INSTALLATION_ROOT/scripts/buildsystems/vcpkg.cmake" -DVCPKG_TARGET_TRIPLET=x64-windows-static
cmake --build build --config Release --parallel
ctest --test-dir build -C Release --output-on-failure --timeout 20
ctest runs every engine target registered in the root CMakeLists.txt: the segmentation, IPC and punctuation contracts, the platform API, data paths, runtime isolation, dictionary state and the per-mode session tests. tests/ additionally holds a separate Windows-only project that is not part of that build — add new tests to the registered targets so they actually run.
Formatting is driven from the repository root by scripts/format.sh, using the .clang-format in this directory (voice/ has its own with a wider column limit). The vendored third-party trees and the generated headers are excluded.
Contract rules
The IPC wire format, opcodes, voice framing and WebView message definitions live in contracts/ and are the single source of truth. Consumers include the same headers; do not restate them on either side. Dictionary naming is defined by contracts/dictionary/format.json, shared with the repository root's scripts/dictionary_product.py.
Data and licensing
The dictionaries are neither stored nor built here. They arrive as a release pinned by tag and digest in product-lock.json and are downloaded at build time; the pipeline that produced them left with the specialization. Per-source licensing is tracked in NOTICE.md — read it before redistributing the built databases.
Recognition goes through a cloud provider; local Whisper inference was removed. The only committed model is voice/assets/models/silero_vad.onnx, loaded solely by the standalone Windows host that is off by default.
Licence
GPL-3.0. Vendored googlepinyinime-rev, utfcpp and voice/third_party/miniaudio keep their upstream licences.