feat(vim): item 20 vimInsertModeRemaps 双键 INSERT 序列映射 (jj→Esc, CC 2.1.208) - #101
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GlobalConfig 加 vimInsertModeRemaps?: string[] (default off)。ConfigTool 暴露为 /config 可设项 (type array)。useVimInput INSERT 分支加状态序列 检测器: 首键暂存前缀+插入+起超时窗; 次键完整匹配→回溯删已插前缀 (Cursor.backspace)+insertedText 镜像减(防 dot-repeat 重放)+切 NORMAL; 非前缀→放弃序列正常插入; 超时/backspace/Esc 中断清状态。 纯函数 matchInsertRemap + getInsertRemapTimeoutMs(env FUSION_VIM_INSERT_REMAP_TIMEOUT_MS default 750, fail-open) 便于单测。 卸载 useEffect 清定时器防 leak。空 remaps byte-identical 旧行为。 验证: typecheck 0; 单测 13 pass; 全 180 单测 pass; build + build:dev:full pass。 Closes #100 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Summary
enhance-0819.md §207 item 20 —
vimInsertModeRemaps(双键 INSERT 序列映射jj→Esc), CC 2.1.208。仓库有完整 vim 引擎但 INSERT 模式无双键 exit 序列映射。本 PR 落地全量
jj→Esc 能力 (用户确认 "全量 jj→Esc")。Changes
src/utils/config.ts—GlobalConfig加vimInsertModeRemaps?: string[](sibling toeditorMode)src/tools/ConfigTool/supportedSettings.ts— 暴露为/config可设项 (type: "array", source global)src/hooks/useVimInput.ts— INSERT 分支状态序列检测器:matchInsertRemap(remaps, prefix, input)→{action, newPrefix}getInsertRemapTimeoutMs()(envFUSION_VIM_INSERT_REMAP_TIMEOUT_MS, default 750, fail-open)Cursor.backspace)+insertedText镜像减(防 dot-repeat 重放)+切 NORMAL; 非前缀→放弃序列正常插入; 超时清前缀; backspace/Esc 中断清状态useEffect清定时器防 leaksrc/__tests__/vimInsertRemaps.test.ts— 纯函数 13 case (match 8 + timeout 5)设计决策
/config vimInsertModeRemaps ["jj"]启用matchInsertRemap无副作用, 确定性判定不经模型 (Rule 5), 便于单测Cursor.backspace(): 处理多字节 grapheme, 同 createOperatorContext setText 模式insertedText镜像减已删前缀, 防.重放多余字符验证
Closes #100
Co-Authored-By: Claude Fable 5 noreply@anthropic.com