Support visual vim toggle case

Author: SqlRush

docs/cc-100-roadmap.md

@@ -732,7 +732,7 @@ M7 补充：prompt history `LogEntry` 读取现在接受 `sessionID`/`session`/`
 
 本轮补充：interaction script loader 现在也接受 provider-style `choices`/`outputs`/`candidates`/`generations` response wrapper，可从 `message.content`、content-block array 和 `content.parts[].text` 里恢复 script JSON，减少模型/SDK 录制脚本响应的手工拆包。
 
-本轮补充：TUI Vim prompt editing 增加基础 visual/visual-line 模式，支持 `v`/`V` 进入选择、motion 扩展 selection、visual `o` 切换 active end、visual `<`/`>` 行缩进/反缩进、`y`/`d`/`c` 以及常用 visual `x`/`s` aliases 作用于选择范围、Esc 回到 normal，并让 interaction script 可用 `visual`/`visualLine` 断言当前 mode。
+本轮补充：TUI Vim prompt editing 增加基础 visual/visual-line 模式，支持 `v`/`V` 进入选择、motion 扩展 selection、visual `o` 切换 active end、visual `<`/`>` 行缩进/反缩进、visual `~` 大小写切换、`y`/`d`/`c` 以及常用 visual `x`/`s` aliases 作用于选择范围、Esc 回到 normal，并让 interaction script 可用 `visual`/`visualLine` 断言当前 mode。
 
 本轮补充：prompt history 写入现在保留 image pasted-content 的 media type、filename、dimensions 和 image-cache source path 元数据，同时继续不把 inline base64 image bytes 或 text-paste hash 写进图片历史记录。
 

docs/claude-code-go-rewrite-plan.md

@@ -232,7 +232,7 @@ test/parity/                 # golden tests against TS/official behavior
 - 本轮补充：contract message、session entry 和 transcript loader 现在会把 message-type aliases 归一化为 canonical 类型，包括 `assistant_message`、`userMessage`、`system-event`、`attachmentMessage`、`progress_update` 和 `tombstone_event`；full loader、line index 和 indexed resume 统一使用 canonical user/assistant/system/attachment，并保留 progress bridge 语义。
 - 本轮补充：tail、byte-tail、window 和 metadata-only transcript loader 也改用 canonical message type 处理 progress bridge 与 compact-boundary，`progress_update` 和 `system-event` 等别名不再只在 full loader 路径生效。
 - 本轮补充：tail、byte-tail、window 和 streaming transcript search 现在复用 full/index loader 的 wrapped record 展开逻辑，可从 JSON:API/resource、GraphQL edge/node 和 collection/list wrapper 中恢复 transcript 批次，并保留 progress bridge。
-- 本轮补充：TUI Vim prompt editing 增加基础 visual/visual-line 模式，支持 `v`/`V` 进入选择、motion 扩展 selection、visual `o` 切换 active end、visual `<`/`>` 行缩进/反缩进、`y`/`d`/`c` 以及常用 visual `x`/`s` aliases 作用于选择范围、Esc 回到 normal，并让 interaction script 可用 `visual`/`visualLine` 断言当前 mode。
+- 本轮补充：TUI Vim prompt editing 增加基础 visual/visual-line 模式，支持 `v`/`V` 进入选择、motion 扩展 selection、visual `o` 切换 active end、visual `<`/`>` 行缩进/反缩进、visual `~` 大小写切换、`y`/`d`/`c` 以及常用 visual `x`/`s` aliases 作用于选择范围、Esc 回到 normal，并让 interaction script 可用 `visual`/`visualLine` 断言当前 mode。
 - 本轮补充：prompt history 写入现在保留 image pasted-content 的 media type、filename、dimensions 和 image-cache source path 元数据，同时继续不把 inline base64 image bytes 或 text-paste hash 写进图片历史记录。
 - 本轮补充：prompt history 读取旧 image pasted-content 记录时，如果缺少 source path 但对应 session 的 image-cache 文件仍存在，会自动补回 source path 并刷新内存 image path cache。
 - 本轮补充：interaction script key 字段现在接受 DOM-style key event object，可从 `key`/`code`（包括 `Numpad*`、扩展数字区括号/hash/backspace 和标点 key code）、旧式 `keyIdentifier`、数字 `keyCode`/`which`/`charCode`（包括标点和数字区运算符）、`keypress.which` 字符码、`ctrlKey`/`altKey`/`metaKey`/`shiftKey` 和 `modifiers` 数组还原现有 key 名，wrapper payload 中的 key event 也可驱动脚本回放。

docs/first-second-parity-audit.md

@@ -229,7 +229,7 @@ M6 progress now includes:
 M7 progress now includes:
 
 - `internal/tui`: lightweight terminal frame renderer using ANSI clear/home/cursor control, message/status/prompt/dialog components, prompt input editing including shared kill-ring state, shift-enter multiline prompt input, line-local multiline prompt ctrl-a/ctrl-e/ctrl-u/ctrl-k editing plus multiline prompt wrap/render/cursor placement, ctrl-b/ctrl-f/ctrl-u/ctrl-k/ctrl-w line editing, ctrl-p/ctrl-n prompt and reverse-search navigation, alt-b/alt-f/alt-d/alt-backspace word editing, ctrl-left/ctrl-right/alt-left/alt-right word motion, ctrl-y yank, and alt-y yank-pop initial support, reverse-search cursor/word editing/kill/yank/yank-pop initial support, ctrl-c interrupt/double-press exit events, ctrl-d delete-forward and empty-input double-press exit events, ctrl-l redraw events, ctrl-o/ctrl-t global toggle events, ctrl-g/ctrl-s/ctrl-x chord chat events, prompt history navigation, reverse-search state/rendering/selection/script assertions including empty/cancel paths and cursor position, paste/image hint input handling with OSC ST terminators and base64 filename decoding, text/image pasted-content references with expanded submit text, metadata script assertions, and history entry restoration, SGR mouse parsing, alternate terminal navigation key sequences including modified Home/End/Delete/PageUp/PageDown, wheel scrolling with modifiers, primary clicks with modifiers, primary drag viewport selection, configurable viewport half-page/top/bottom scrolling, viewport line selection and dialog action clicks, focus/blur events, resize scroll preservation, default and configurable keybinding resolver with chord pending/null-unbind behavior, key/action camelCase aliases, keybinding JSON config loading, and focus/mouse/paste/image key names, vim insert/normal word, WORD, ge/gE, operator ge/gE, line-local `^`/`$`/`0`/`|`/`I`/`A`/`D`, quote, bracket, and j/k linewise motions/text objects, persistent yank/register/paste paths, last-change dot-repeat, G/gg line navigation, toggle-case, join, open-line, indent, substitute, delete/count/replace/undo/find/till/repeat/matching-pair % actions, normal-mode arrow/backspace/delete mappings, and operator character ranges, permission/task dialog builders with kind/id routing/runtime resolution/status line, stale dialog race guards, active dialog cancellation, permission id/bulk cancellation, queued permission promotion, active task dialog refresh, task lifecycle state transitions and bulk cancellation, idempotent alternate screen lifecycle/reset/reassert-interactive sequences, mouse/focus/bracketed-paste terminal mode lifecycle/reconciliation and reassertion sequences, ANSI snapshot capture/stripping, snapshot corpus write/compare/script-file compare/missing-baseline/diff/batch/strict unexpected-baseline status, scripted interaction runner with JSON/JSONL/wrapper loading and file-runner entrypoints, JSON/runtime/task camel field aliases, keybinding mutations, permission-cancel runtime mutations, and assertions including vim mode/register/task state/dialog result/runtime mutation/task bulk-cancel/status negative/snapshot negative/screen size/event-sequence/event-count/no-event/dialog-result-count/no-dialog-result plus multi-key/text/paste/image/pasted-content metadata and named-key input, REPL screen model, viewport scrolling, and selection focus model.
-- `internal/tui`: Vim prompt editing now includes basic visual and visual-line mode support with `v`/`V`, motion-extended selections, active-end toggle with visual `o`, visual `<`/`>` line indent/outdent, `y`/`d`/`c` range operators plus common visual `x`/`s` aliases, Escape return-to-normal behavior, and script expectation aliases for `visual`/`visualLine` modes.
+- `internal/tui`: Vim prompt editing now includes basic visual and visual-line mode support with `v`/`V`, motion-extended selections, active-end toggle with visual `o`, visual `<`/`>` line indent/outdent, visual `~` case toggling, `y`/`d`/`c` range operators plus common visual `x`/`s` aliases, Escape return-to-normal behavior, and script expectation aliases for `visual`/`visualLine` modes.
 - `internal/session`: prompt history now persists image pasted-content metadata such as media type, filename, dimensions, and image-cache source path while still omitting inline base64 image bytes and text-paste hashes for images.
 - `internal/session`: prompt history loading now backfills missing image source paths from existing per-session image-cache files and refreshes the in-memory image path cache when those files exist.
 - `internal/tui`: interaction script key fields now accept DOM-style key event objects with `key`/`code` including `Numpad*`, extended numpad paren/hash/backspace codes, and punctuation key codes, legacy `keyIdentifier`, numeric `keyCode`/`which`/`charCode` including punctuation and numpad operators, `keypress.which` char-code replay, modifier booleans such as `ctrlKey`/`altKey`/`metaKey`/`shiftKey`, and modifier arrays, including wrapper payloads and modifier-only event filtering.

internal/tui/tui_test.go

@@ -3774,6 +3774,17 @@ func TestREPLScreenVimVisualCharOperators(t *testing.T) {
 		t.Fatalf("after visual s screen = %#v", screen)
 	}
 
+	screen = NewREPLScreen(40, 8, nil)
+	screen.SetVimEnabled(true)
+	typePromptText(&screen, "alpha beta gamma")
+	screen.ApplyKey(ParseKey("\x1b"))
+	for _, seq := range []string{"0", "w", "v", "e", "~"} {
+		screen.ApplyKey(ParseKey(seq))
+	}
+	if screen.VimMode != VimNormal || screen.Prompt.Text != "alpha BETA gamma" || screen.Prompt.Cursor != len([]rune("alpha ")) {
+		t.Fatalf("after visual toggle case screen = %#v", screen)
+	}
+
 	screen = NewREPLScreen(40, 8, nil)
 	screen.SetVimEnabled(true)
 	typePromptText(&screen, "alpha beta gamma")
@@ -3853,6 +3864,17 @@ func TestREPLScreenVimVisualLineOperators(t *testing.T) {
 		t.Fatalf("after visual line s screen = %#v", screen)
 	}
 
+	screen = NewREPLScreen(40, 8, nil)
+	screen.SetVimEnabled(true)
+	typePromptText(&screen, "one\ntwo\nthree")
+	screen.ApplyKey(ParseKey("\x1b"))
+	for _, seq := range []string{"g", "g", "V", "j", "~"} {
+		screen.ApplyKey(ParseKey(seq))
+	}
+	if screen.VimMode != VimNormal || screen.Prompt.Text != "ONE\nTWO\nthree" || screen.Prompt.Cursor != 0 {
+		t.Fatalf("after visual line toggle case screen = %#v", screen)
+	}
+
 	screen = NewREPLScreen(40, 8, nil)
 	screen.SetVimEnabled(true)
 	typePromptText(&screen, "one\ntwo\nthree\nfour")

internal/tui/vim.go

@@ -307,6 +307,8 @@ func (s *REPLScreen) applyVimVisualRune(r rune) ScreenEvent {
 		s.toggleVimVisualActiveEnd()
 	case '>', '<':
 		s.applyVimVisualIndent(r)
+	case '~':
+		s.applyVimVisualToggleCase()
 	case 'y', 'd', 'c':
 		s.applyVimVisualOperator(r)
 	case 'x':
@@ -408,6 +410,20 @@ func (s *REPLScreen) applyVimVisualIndent(dir rune) {
 	s.exitVimVisual()
 }
 
+func (s *REPLScreen) applyVimVisualToggleCase() {
+	start, end, _, ok := s.vimVisualSelectionRange()
+	if !ok {
+		s.exitVimVisual()
+		return
+	}
+	s.recordVimUndo()
+	count := s.Prompt.toggleCaseRange(start, end)
+	if count > 0 {
+		s.recordVimChange(vimRecordedChange{Kind: "toggleCase", Count: count})
+	}
+	s.exitVimVisual()
+}
+
 func (s *REPLScreen) applyVimOperator(r rune) ScreenEvent {
 	if isVimCountRune(r) && (r != '0' || s.VimCount > 0) {
 		s.VimCount = s.VimCount*10 + int(r-'0')
@@ -1228,15 +1244,7 @@ func (p *PromptState) toggleCase(count int) {
 	cursor := p.clampCursor(p.Cursor)
 	for i := 0; i < count && cursor+i < len(runes); i++ {
 		idx := cursor + i
-		r := runes[idx]
-		switch {
-		case unicode.IsUpper(r):
-			runes[idx] = unicode.ToLower(r)
-		case unicode.IsLower(r):
-			runes[idx] = unicode.ToUpper(r)
-		default:
-			runes[idx] = unicode.ToUpper(r)
-		}
+		runes[idx] = toggleRuneCase(runes[idx])
 	}
 	p.Text = string(runes)
 	if cursor+count <= len(runes) {
@@ -1247,6 +1255,37 @@ func (p *PromptState) toggleCase(count int) {
 	p.resetHistoryCursor()
 }
 
+func (p *PromptState) toggleCaseRange(start int, end int) int {
+	runes := []rune(p.Text)
+	if start < 0 {
+		start = 0
+	}
+	if end > len(runes) {
+		end = len(runes)
+	}
+	if end < start {
+		start, end = end, start
+	}
+	for i := start; i < end; i++ {
+		runes[i] = toggleRuneCase(runes[i])
+	}
+	p.Text = string(runes)
+	p.Cursor = start
+	p.resetHistoryCursor()
+	return end - start
+}
+
+func toggleRuneCase(r rune) rune {
+	switch {
+	case unicode.IsUpper(r):
+		return unicode.ToLower(r)
+	case unicode.IsLower(r):
+		return unicode.ToUpper(r)
+	default:
+		return unicode.ToUpper(r)
+	}
+}
+
 func (p *PromptState) joinLines(count int) {
 	if count <= 0 {
 		count = 1