Jia Sui
809c62995b
模糊音开启时 QuanpinDictionary::query 对整个候选列表按 pinyin 字符串长度降序 排序（本意是压住模糊/前缀候选）。备选切分的 canonical 键带撇号且音节更多 （xi'e / ji'ang / you'di'an），字符串比主切分键（xie / jiang / you'dian）更长， 于是权重只有 6 的西鄂、23740 的激昂从保护位第 2 跳到第 1，顶掉 xie/jiang 的 首候选；xie 连模糊变体都没有，仅因排序无条件执行就被波及。 - 排序键改为候选覆盖的输入字母数（去掉撇号），与用户实际敲的长度对齐：备选 切分键与主键同层交给词频，模糊/前缀候选仍排在整串匹配之后。 - 备选切分保护位加词频门槛：备选最佳词权重达到主切分首位 1/100 以上才提升。 真歧义保留（xian -> 西安 55K 对 先 1.66M），罕见重码被拒（xie -> 西鄂 6、 jiang -> 激昂 23.7K、youdian -> 尤迪安 7）。 test_fuzzy_pinyin 补齐四个场景回归断言（夹具权重取自出货词库）； test_quanpin_scheme 的保护位用例移到新契约：夹具备选词权重 1 -> 100， 让它留在门槛内继续覆盖「真歧义保留保护位」。
Metasequoia IME for Windows
中文 README · Website · Docs · Privacy
A free and open-source Chinese and Japanese input method for Windows 10 and 11, built on TSF with no legacy IMM32 path.
This repository is the whole Windows product: the TSF text service DLL, the resident server, the conversion engine, a self-written native GUI framework, the HTML surfaces and the installer. The engine was imported from MSIME-Engine and specialized for Windows; it now lives in engine/ as a first-party component, so a plain clone builds the product. See engine/UPSTREAM.md.
This is a public beta. Expect rough edges and read the release notes before upgrading.
Install
Download the installer from Releases or the download page, run it, then switch with Win + Space.
Current builds are not code signed. SmartScreen will block them and uiAccess is unavailable, which means the candidate window cannot float above elevated applications. Verify the download with the SHA256 published on the download page.
You need the Microsoft Visual C++ 2015–2022 Redistributable (x64). The server and settings app are 64-bit; the x86 redistributable is a separate package and does not substitute for it. If you cannot switch to the IME, the server keeps exiting, or the settings window closes immediately, install that first.
What it does
- Chinese input: full pinyin, double pinyin (Xiaohe / Ziranma / Shoudao / Microsoft), Wubi 86
- Japanese input: romaji, with hiragana, katakana and dictionary candidates; also available as a temporary mode from Chinese
- Helpcode (形码) filtering on pinyin schemes: five tables, single- and double-code
- Optional cloud candidates, and AI suggestions via DeepSeek / OpenAI / SiliconFlow / Groq
- English-Chinese glosses in the vertical candidate window
- Mixed Chinese-English input, emoji and kaomoji, a dedicated English candidate mode
- Voice input with streaming recognition and optional cleanup
- Handwriting, on-screen keyboard, floating toolbar, clipboard history
- User dictionary management, candidate frequency tuning, skins with light and dark variants
Privacy
An input method sees every keystroke, so the boundaries are stated explicitly in PRIVACY.md: which features reach the network, what each one sends, what the defaults are, and how to turn each off.
Two things worth knowing up front. Cloud candidates are on by default — the composition spelling goes to Google's input-tools service, and it is the only network feature that works without you supplying a credential. API tokens are stored in plain text in config.toml, unlike macOS and Linux which use the Keychain and Secret Service.
There is no telemetry, analytics or crash reporting of any kind.
Building and contributing
CONTRIBUTING.md has the environment, the build order and what to run before opening a pull request. Contributions do not have to be code — dictionary entries, documentation, icons and compatibility testing all count, and the recruiting page lists them by area.
Note that most issues, documentation and code comments are in Chinese. English pull requests and issues are welcome.
Licence
GPL-3.0. See LICENSE and THIRD_PARTY_NOTICES.txt.