Files
msime-windows/engine/contracts
Lu Fan(SonnyCalcr) 53ee180ec3 feat(engine): 直接辅助码句中四码可用第二位辅码大写结束 (#630)
直接辅助码的四码在句中原来只能补 / 结束(uiab/),现在也可以把第二位辅码敲成大写(uiaB)。
设置页「直接辅助码句中四码标记」两个勾选框可多选、至少留一个,默认只勾 /。

- 引擎:拼写图新增 Aux2Upper(非缩写)。开着大写标记时大写字母只能当第二位辅码,
  走不通再退回不分大小写的旧规则,第一位辅码敲大写(uiAuiQ)照常可用。/ 的收键受勾选控制。
- 协议:DirectHelpcodeChanged 载荷改为 "0"/"1"/"2"(2 = 开着但 / 不是编码键),
  TSF 据此决定吃不吃 /。
- 配置:新增 helpcode.shuangpin_direct_helpcode_slash / _uppercase,同步写入出厂模板、
  工作配置和两个设置宿主的读写映射。
2026-10-05 20:43:02 +08:00
..

Product contracts

These headers are independently consumable C++17 contracts. Including them does not link the input engine, start threads, access dictionaries, or require any third-party code. The TSF text service consumes only these headers; the server consumes the same source by linking the engine. Both live in this repository — windows/ and server/ — and so does the engine, so one commit covers all three and there is no pin to keep in step.

windows_ipc.h owns the wire layouts, pipe names and opcodes. voice_composition_pipe.h owns voice framing. Consumers may wrap these headers but must not duplicate their definitions.

punctuation/policy.json is the source of truth for the ASCII punctuation keys and their Chinese translations. Its generated policy.h is consumed by the engine and included directly by the hosts that route punctuation keys. Stateful quote alternation and nested book-title marks remain part of the same contract, rather than being re-created in each host.

product_lock.py contains the shared product-lock primitives used by the three platform locks. See product_lock.md for the vendoring and byte-equality rule.

Main handshake

Reverse endpoints retain their 16-byte hello and PipeReady acknowledgement. Once both endpoints are registered, the new client sends the existing 304-byte ClientHello with:

Field Meaning
keycode MSIP magic
wch Major wire protocol version
point[0] Minor additive version
modifiers_down Supported capability bits
point[1] Required capability bits
request_id Nonzero registration correlation ID

The Server sends ProtocolReady or ProtocolMismatch on the registered reply endpoint before activating the main route. The reply echoes the correlation ID and contains major/minor, negotiated capabilities and magic in the first six UTF-16 units. These packets are consumed only during registration and are never text commits.

Existing DLLs with unversioned hello remain accepted by the new Server using the established v1 semantics; they receive no new opcode. New DLLs require an acknowledgement from the new Server within the existing bounded handshake budget. Against an old or incompatible Server they remain disconnected and use the existing raw-input fallback, rather than interpreting unnegotiated frames. A late acknowledgement from an old registration cannot authorize another one.

Append opcodes; never change released values or reuse them. An incompatible layout needs a new major protocol and an explicit migration, not another copy of a header. Minor additions must be optional capabilities.

CharacterSetShortcut is optional and is not included in the default capability set. Windows implementations that support it pass Capabilities | CharacterSetShortcut to Hello / Negotiate. Only after negotiating this bit may a Chinese-mode client consume Ctrl+Shift+F (no Alt or Windows modifier) and send the existing KeyEvent with keycode F and Shift/Control modifier bits. The server toggles the persisted character set without clearing composition, and refreshes the current candidate page and toolbar. It sends no key reply. Clients suppress auto-repeat and must not replay an ambiguously delivered toggle; older peers simply omit the optional bit.

tests/windows_ipc_contract.cpp executes wire-layout/upgrade/framing cases on all Engine CI platforms and both Windows TSF architectures.

backend/protocol.json 定义 MSIME-Backend 的可选共通 HTTP 服务 API,详见后端协议与兼容性。