refactor: replace stat system with variable system

Replaces the specialized `stat` system with a more general-purpose
variable system. This includes:

- Renaming `ReactiveStatManager` to `ReactiveVariableManager`
- Changing template syntax from `${key}` to `{{$key}}`
- Replacing `StatsView` with `VariableView` to show declared, plain,
  and tag-typed variables
- Updating command `/stat` to `/set`
- Refactoring the reactivity engine to support variable declarations
  and tag modifiers via `csv role=declare` blocks

src/App.tsx

@@ -18,7 +18,7 @@ import {
   DocDialog,
   DataSourceDialog,
   RevealManager,
-  ReactiveStatManager,
+  ReactiveVariableManager,
   CommandLinkManager,
 } from "./components";
 import { generateToc, type FileNode, type TocNode } from "./data-loader";
@@ -158,7 +158,7 @@ const App: Component = () => {
                 src={currentPath()}
               >
                 <RevealManager />
-                <ReactiveStatManager />
+                <ReactiveVariableManager />
                 <CommandLinkManager />
               </Article>
             </div>

src/components/CommandLinkManager.tsx

@@ -32,9 +32,9 @@ export const CommandLinkManager: Component = () => {
       myName: stream.myName,
       command,
       sparkTables: comp.data.sparkTables,
-      statValues: stream.stats,
+      variables: stream.variables,
-      statDefs: comp.data.stats,
+      declarations: comp.data.declarations,
-      statTemplates: comp.data.statTemplates,
+      tagModifiers: comp.data.tagModifiers,
     }).then((result) => {
       if (!result.ok) {
         setDispatchError(result.error);

src/components/index.ts

@@ -16,7 +16,7 @@ export { Article } from "./Article";
 export type { ArticleProps } from "./Article";
 export { RevealManager } from "./RevealManager";
 export { CommandLinkManager } from "./CommandLinkManager";
-export { ReactiveStatManager } from "./journal/ReactiveStatManager";
+export { ReactiveVariableManager } from "./journal/ReactiveVariableManager";
 export { MobileSidebar, DesktopSidebar } from "./Sidebar";
 export type { SidebarProps } from "./Sidebar";
 export { FileTreeNode, HeadingNode } from "./FileTree";

src/components/journal/JournalInput.tsx

@@ -85,7 +85,7 @@ export const JournalInput: Component = () => {
 
     setDispatchError(null);
 
-    // Players: chat + stat commands only
+    // Players: chat + set commands only
     if (isPlayer()) {
       if (parsed.type === "chat") {
         const result = sendMessage("chat", { text: raw });
@@ -94,13 +94,13 @@ export const JournalInput: Component = () => {
         return;
       }
 
-      if (parsed.type !== "stat") {
+      if (parsed.type !== "set" && parsed.type !== "rolltag") {
-        setDispatchError("玩家只能发送聊天消息或使用 /stat 命令");
+        setDispatchError("玩家只能发送聊天消息或使用 /set 命令");
         return;
       }
     }
 
-    // GM: all commands, Player: stat commands
+    // GM: all commands, Player: set commands
     setSending(true);
 
     await dispatchCommand({
@@ -108,9 +108,9 @@ export const JournalInput: Component = () => {
       myName: stream.myName,
       command: raw,
       sparkTables: comp.data.sparkTables,
-      statValues: stream.stats,
+      variables: stream.variables,
-      statDefs: comp.data.stats,
+      declarations: comp.data.declarations,
-      statTemplates: comp.data.statTemplates,
+      tagModifiers: comp.data.tagModifiers,
     });
 
     // dispatchCommand already set the shared error if it failed.
@@ -181,7 +181,7 @@ export const JournalInput: Component = () => {
         return;
       }
       const raw = text();
-      if ((isGm() || raw.startsWith("/stat")) && raw.startsWith("/")) {
+      if ((isGm() || raw.startsWith("/set")) && raw.startsWith("/")) {
         e.preventDefault();
         openCompletions();
         return;
@@ -265,8 +265,8 @@ export const JournalInput: Component = () => {
             onKeyDown={handleKeyDown}
             placeholder={
               isGm()
-                ? "输入消息，或使用 /roll、/spark、/link、/stat 命令..."
+                ? "输入消息，或使用 /roll、/spark、/link、/set 命令..."
-                : "输入消息，或使用 /stat 命令..."
+                : "输入消息，或使用 /set 命令..."
             }
             rows={2}
             class="w-full resize-none border-0 px-3 pt-2.5 pb-1 text-sm

src/components/journal/JournalPanel.tsx

@@ -15,7 +15,7 @@ import { JournalHeader } from "./JournalHeader";
 import { ConnectDialog } from "./ConnectDialog";
 import { InviteDialog } from "./InviteDialog";
 import { CreateSessionDialog } from "./CreateSessionDialog";
-import { StatsView } from "./StatsView";
+import { VariableView } from "./VariableView";
 
 export interface JournalPanelProps {
   open: boolean;
@@ -26,7 +26,7 @@ export const JournalPanel: Component<JournalPanelProps> = (props) => {
   const stream = useJournalStream();
   const [showInvite, setShowInvite] = createSignal(false);
   const [showCreateSession, setShowCreateSession] = createSignal(false);
-  const [viewMode, setViewMode] = createSignal<"stream" | "stats">("stream");
+  const [viewMode, setViewMode] = createSignal<"stream" | "variables">("stream");
 
   // Player list (exclude gm and observer)
   const playerEntries = () =>
@@ -99,18 +99,18 @@ export const JournalPanel: Component<JournalPanelProps> = (props) => {
                 消息流
               </button>
               <button
-                onClick={() => setViewMode("stats")}
+                onClick={() => setViewMode("variables")}
                 class={`flex-1 text-xs py-1.5 transition-colors ${
-                  viewMode() === "stats"
+                  viewMode() === "variables"
                     ? "bg-white text-blue-600 font-medium border-b-2 border-blue-600"
                     : "text-gray-500 hover:text-gray-700"
                 }`}
               >
-                属性
+                变量
               </button>
             </div>
             <div class="flex-1 min-h-0">
-              <Show when={viewMode() === "stream"} fallback={<StatsView />}>
+              <Show when={viewMode() === "stream"} fallback={<VariableView />}>
                 <StreamView />
               </Show>
             </div>

src/components/journal/ReactiveVariableManager.tsx

@@ -1,61 +1,30 @@
 /**
- * ReactiveStatManager — mounts as a child of <Article> and reactively
+ * ReactiveVariableManager — mounts as a child of <Article> and reactively
- * replaces ${key} template patterns in the rendered markdown DOM with
+ * replaces {{$key}} template patterns in the rendered markdown DOM with
- * live stat values from the journal stream.
+ * live variable values from the journal stream.
  *
  * On mount, walks all text nodes in the article content looking for
- * ${key} placeholders. Each match is wrapped in a <span> with a
+ * {{$key}} placeholders. Each match is wrapped in a <span> with a
- * data-reactive-stat attribute so that subsequent updates (driven by
+ * data-reactive-var attribute so that subsequent updates (driven by
  * a Solid effect) only touch those spans.
  */
 
-import { Component, createEffect, onCleanup, createMemo } from "solid-js";
+import { Component, createEffect, onCleanup } from "solid-js";
 import { useArticleDom } from "../Article";
 import { useJournalStream } from "../stores/journalStream";
-import { useJournalCompletions } from "../journal/completions";
-import { fullKey } from "../journal/stat-helpers";
-import type { StatDef } from "../journal/completions";
 
-const TEMPLATE_RE = /\$\{(\w+)\}/g;
+const TEMPLATE_RE = /\{\{(\$[a-zA-Z_][a-zA-Z0-9_]*)\}\}/g;
 
 /** Tag name used for marker spans — must stay in sync with the scan pass. */
-const MARKER = "data-reactive-stat";
+const MARKER = "data-reactive-var";
 
-export const ReactiveStatManager: Component = () => {
+export const ReactiveVariableManager: Component = () => {
   const contentDom = useArticleDom();
   const stream = useJournalStream();
-  const comp = useJournalCompletions();
 
-  const statDefs = createMemo(() => comp.data.stats);
+  const values = () => stream.variables;
-  const values = createMemo(() => stream.stats);
 
-  /** Build a lookup: bare key -> StatDef (for scope-aware resolution) */
+  // ---- Initial scan: wrap {{$key}} text in marker spans ----
-  const bareDefMap = createMemo(() => {
-    const map = new Map<string, StatDef>();
-    for (const def of statDefs()) {
-      if (!map.has(def.key)) {
-        map.set(def.key, def);
-      }
-    }
-    return map;
-  });
-
-  /**
-   * Resolve a bare key from markdown template to its runtime value.
-   * Uses StatDef scoping when available, falls back to player-first, global-second.
-   */
-  function resolveBareKey(bareKey: string): string {
-    const bareDef = bareDefMap().get(bareKey);
-    if (bareDef) {
-      const fk = fullKey(bareDef, stream.myName);
-      return values()[fk] ?? bareDef.default ?? "";
-    }
-    const pk = `${stream.myName}:${bareKey}`;
-    if (values()[pk] !== undefined) return values()[pk];
-    return values()[bareKey] ?? "";
-  }
-
-  // ---- Initial scan: wrap ${key} text in marker spans ----
 
   createEffect(() => {
     const dom = contentDom();
@@ -73,7 +42,7 @@ export const ReactiveStatManager: Component = () => {
     if (dom) unwrapAll(dom);
   });
 
-  // ---- Reactive updates: whenever stat values change, update all spans ----
+  // ---- Reactive updates: whenever variable values change, update all spans ----
 
   createEffect(() => {
     const dom = contentDom();
@@ -88,7 +57,9 @@ export const ReactiveStatManager: Component = () => {
       TEMPLATE_RE.lastIndex = 0;
       let m: RegExpExecArray | null;
       while ((m = TEMPLATE_RE.exec(template)) !== null) {
-        result = result.replace(`\${${m[1]}}`, resolveBareKey(m[1]));
+        const key = m[1]; // includes $ prefix
+        const resolved = v[key] ?? "";
+        result = result.replace(`{{${key}}}`, resolved);
       }
       if (span.textContent !== result) {
         span.textContent = result;
@@ -104,8 +75,8 @@ export const ReactiveStatManager: Component = () => {
 // ---------------------------------------------------------------------------
 
 /**
- * Walk all text nodes in a subtree and wrap `${key}` patterns in
+ * Walk all text nodes in a subtree and wrap `{{$key}}` patterns in
- * `<span data-reactive-stat="originalText">` elements.
+ * `<span data-reactive-var="originalText">` elements.
  */
 function scanAndWrap(root: Element): void {
   const walker = document.createTreeWalker(root, NodeFilter.SHOW_TEXT);
@@ -119,7 +90,7 @@ function scanAndWrap(root: Element): void {
     TEMPLATE_RE.lastIndex = 0;
     if (!TEMPLATE_RE.test(text)) continue;
 
-    // Build replacement HTML: split on ${key} and wrap each key span
+    // Build replacement HTML: split on {{$key}} and wrap each key span
     TEMPLATE_RE.lastIndex = 0;
     const parts: string[] = [];
     let lastIndex = 0;
@@ -180,4 +151,4 @@ function escapeAttr(s: string): string {
     .replace(/>/g, "&gt;");
 }
 
-export default ReactiveStatManager;
+export default ReactiveVariableManager;

src/components/journal/StatsView.tsx

@@ -1,234 +0,0 @@
-/**
- * StatsView — table view of all stat key-value pairs.
- *
- * Groups stats by scope (global, then per-player). Shows computed values
- * (base + modifiers) and inline roll buttons for stats with roll/table/formula.
- */
-
-import { Component, For, createMemo, Show } from "solid-js";
-import { useJournalStream } from "../stores/journalStream";
-import { useJournalCompletions } from "./completions";
-import { fullKey, modifierLabel } from "./stat-helpers";
-import type { StatDef } from "./completions";
-
-export const StatsView: Component = () => {
-  const stream = useJournalStream();
-  const comp = useJournalCompletions();
-
-  const statDefs = createMemo(() => comp.data.stats);
-  const values = createMemo(() => stream.stats);
-
-  /** Build a lookup: fullKey -> StatDef */
-  const defMap = createMemo(() => {
-    const map = new Map<string, StatDef>();
-    for (const def of statDefs()) {
-      const fk = fullKey(def, stream.myName);
-      map.set(fk, def);
-    }
-    return map;
-  });
-
-  /** Compute the effective value of a stat (base + modifiers) */
-  function computedValue(key: string): string {
-    const def = defMap().get(key);
-    if (!def) return values()[key] ?? "";
-
-    const base = values()[key] ?? def.default ?? "";
-    const baseNum = parseFloat(base);
-
-    if (def.type === "number" || def.type === "derived") {
-      // Sum modifiers that target this key (fullKey matching)
-      const modKeys: string[] = [];
-      for (const [fk, d] of defMap()) {
-        if (
-          d.type === "modifier" &&
-          d.target &&
-          fullKeyTarget(d.target, d, def)
-        ) {
-          modKeys.push(fk);
-        }
-      }
-      let total = isNaN(baseNum) ? 0 : baseNum;
-      for (const mk of modKeys) {
-        const mv = parseFloat(values()[mk] ?? defMap().get(mk)?.default ?? "0");
-        if (!isNaN(mv)) total += mv;
-      }
-      return String(total);
-    }
-
-    return base || "—";
-  }
-
-  /** Check if a modifier's target matches a given def (scoped correctly). */
-  function fullKeyTarget(
-    target: string,
-    modDef: StatDef,
-    targetDef: StatDef,
-  ): boolean {
-    if (modDef.scope === targetDef.scope) {
-      return (
-        fullKey({ ...modDef, key: target }, stream.myName) ===
-        fullKey(targetDef, stream.myName)
-      );
-    }
-    return false;
-  }
-
-  /** Group stats by scope */
-  const groups = createMemo(() => {
-    const result: {
-      scope: string;
-      label: string;
-      entries: { fullKey: string; def: StatDef }[];
-    }[] = [];
-    const globalEntries: { fullKey: string; def: StatDef }[] = [];
-    const playerEntries: { fullKey: string; def: StatDef }[] = [];
-
-    for (const def of statDefs()) {
-      const fk = fullKey(def, stream.myName);
-      if (def.scope === "global") {
-        globalEntries.push({ fullKey: fk, def });
-      } else {
-        playerEntries.push({ fullKey: fk, def });
-      }
-    }
-
-    if (globalEntries.length > 0) {
-      result.push({ scope: "global", label: "全局", entries: globalEntries });
-    }
-
-    if (playerEntries.length > 0) {
-      result.push({
-        scope: "player",
-        label: `玩家 (${stream.myName})`,
-        entries: playerEntries,
-      });
-    }
-
-    return result;
-  });
-
-  return (
-    <div class="h-full overflow-y-auto bg-gray-50">
-      <Show
-        when={statDefs().length > 0}
-        fallback={
-          <p class="text-center text-gray-400 text-xs py-8">
-            暂无属性定义。在文档中使用 ```yaml role=stat 代码块定义属性。
-          </p>
-        }
-      >
-        <For each={groups()}>
-          {(group) => (
-            <div class="mb-3">
-              <div class="sticky top-0 bg-gray-100 px-3 py-1.5 border-b border-gray-200">
-                <span class="text-xs font-semibold text-gray-600">
-                  {group.label}
-                </span>
-              </div>
-              <div class="divide-y divide-gray-100">
-                <For each={group.entries}>
-                  {({ fullKey: fk, def }) => {
-                    const val = () => values()[fk];
-                    const comp = () => computedValue(fk);
-                    const hasModifiers = () => {
-                      for (const [mfk, md] of defMap()) {
-                        if (
-                          md.type === "modifier" &&
-                          md.target &&
-                          fullKeyTarget(md.target, md, def)
-                        ) {
-                          return true;
-                        }
-                      }
-                      return false;
-                    };
-                    const canRoll = () =>
-                      def.roll ||
-                      def.formula ||
-                      def.type === "enum" ||
-                      def.type === "template";
-
-                    return (
-                      <div class="flex items-center px-3 py-1.5 hover:bg-white/50 transition-colors">
-                        <div class="flex-1 min-w-0 flex items-center gap-1.5">
-                          <span class="text-sm text-gray-800 truncate">
-                            {modifierLabel(def, statDefs())}
-                          </span>
-                          <span class="text-[10px] text-gray-400 bg-gray-100 px-1 rounded shrink-0">
-                            {def.key}
-                          </span>
-                          <Show when={def.type === "modifier"}>
-                            <span class="text-[10px] text-blue-400 bg-blue-50 px-1 rounded shrink-0">
-                              →{def.target}
-                            </span>
-                          </Show>
-                        </div>
-
-                        <div class="flex items-center gap-2 shrink-0">
-                          <Show
-                            when={val() !== undefined}
-                            fallback={
-                              <span class="text-sm text-gray-300">
-                                {def.default ?? "—"}
-                              </span>
-                            }
-                          >
-                            <span class="text-sm font-mono text-gray-700">
-                              {val()}
-                            </span>
-                          </Show>
-
-                          <Show
-                            when={
-                              hasModifiers() &&
-                              comp() !== (val() ?? def.default ?? "")
-                            }
-                          >
-                            <span class="text-xs text-gray-400">
-                              = {comp()}
-                            </span>
-                          </Show>
-
-                          <Show when={canRoll()}>
-                            <button
-                              class="text-[10px] bg-green-100 text-green-700 hover:bg-green-200 px-1.5 py-0.5 rounded transition-colors"
-                              title="掷骰"
-                              onClick={() => {
-                                const textarea =
-                                  document.querySelector<HTMLTextAreaElement>(
-                                    "#journal-input-textarea",
-                                  );
-                                if (textarea) {
-                                  const nativeInputValueSetter =
-                                    Object.getOwnPropertyDescriptor(
-                                      window.HTMLTextAreaElement.prototype,
-                                      "value",
-                                    )?.set;
-                                  nativeInputValueSetter?.call(
-                                    textarea,
-                                    `/stat roll ${def.key}`,
-                                  );
-                                  textarea.dispatchEvent(
-                                    new Event("input", { bubbles: true }),
-                                  );
-                                  textarea.focus();
-                                }
-                              }}
-                            >
-                              🎲
-                            </button>
-                          </Show>
-                        </div>
-                      </div>
-                    );
-                  }}
-                </For>
-              </div>
-            </div>
-          )}
-        </For>
-      </Show>
-    </div>
-  );
-};

src/components/journal/VariableView.tsx

@@ -0,0 +1,243 @@
+/**
+ * VariableView — table view of all variable key-value pairs and active tags.
+ *
+ * Shows variables grouped by type (declared, plain, tag-typed) and an
+ * active tags section showing which variable activates each tag and
+ * what modifier effects are in play.
+ */
+
+import { Component, For, createMemo, Show } from "solid-js";
+import { useJournalStream } from "../stores/journalStream";
+import { useJournalCompletions } from "./completions";
+import { computeActiveTags } from "./var-reactivity";
+import { extractDependencies } from "./var-reactivity";
+import type { VarDeclaration } from "./declare-parser";
+
+export const VariableView: Component = () => {
+  const stream = useJournalStream();
+  const comp = useJournalCompletions();
+
+  const declarations = createMemo(() => comp.data.declarations);
+  const tagModifiers = createMemo(() => comp.data.tagModifiers);
+  const values = createMemo(() => stream.variables);
+
+  /** Build a map: $key → VarDeclaration */
+  const declMap = createMemo(() => {
+    const map = new Map<string, VarDeclaration>();
+    for (const d of declarations()) {
+      map.set(d.key, d);
+    }
+    return map;
+  });
+
+  /** Active tags */
+  const activeTags = createMemo(() => computeActiveTags(values()));
+
+  /** Tag modifier index: #tag → [{target, expression}] */
+  const tagModMap = createMemo(() => {
+    const map = new Map<string, Array<{ target: string; expression: string }>>();
+    for (const tm of tagModifiers()) {
+      let list = map.get(tm.tag);
+      if (!list) {
+        list = [];
+        map.set(tm.tag, list);
+      }
+      list.push({ target: tm.target, expression: tm.expression });
+    }
+    return map;
+  });
+
+  /** Which variable activates each tag */
+  const tagActivators = createMemo(() => {
+    const map = new Map<string, string>();
+    const vars = values();
+    for (const [key, val] of Object.entries(vars)) {
+      if (val.startsWith("#")) {
+        if (!map.has(val)) map.set(val, key);
+      }
+    }
+    return map;
+  });
+
+  /** Group variables: declared, plain (set directly), tag-typed */
+  const groups = createMemo(() => {
+    const vars = values();
+    const declKeys = new Set(declarations().map((d) => d.key));
+
+    const declared: Array<{ key: string; value: string; expr: string; deps: string[] }> = [];
+    const plain: Array<{ key: string; value: string }> = [];
+    const tagVars: Array<{ key: string; value: string }> = [];
+
+    for (const [key, val] of Object.entries(vars)) {
+      if (val.startsWith("#")) {
+        tagVars.push({ key, value: val });
+      } else if (declKeys.has(key)) {
+        const decl = declMap().get(key)!;
+        declared.push({
+          key,
+          value: val,
+          expr: decl.expression,
+          deps: extractDependencies(decl.expression),
+        });
+      } else {
+        plain.push({ key, value: val });
+      }
+    }
+
+    return { declared, plain, tagVars };
+  });
+
+  const hasAnyData = () =>
+    declarations().length > 0 ||
+    Object.keys(values()).length > 0 ||
+    activeTags().length > 0;
+
+  return (
+    <div class="h-full overflow-y-auto bg-gray-50">
+      <Show
+        when={hasAnyData()}
+        fallback={
+          <p class="text-center text-gray-400 text-xs py-8">
+            暂无变量定义。在文档中使用 ```csv role=declare 代码块定义变量。
+          </p>
+        }
+      >
+        {/* Active Tags */}
+        <Show when={activeTags().length > 0}>
+          <div class="mb-3">
+            <div class="sticky top-0 bg-gray-100 px-3 py-1.5 border-b border-gray-200">
+              <span class="text-xs font-semibold text-gray-600">激活标签</span>
+            </div>
+            <div class="divide-y divide-gray-100">
+              <For each={activeTags()}>
+                {(tag) => {
+                  const activator = () => tagActivators().get(tag);
+                  const mods = () => tagModMap().get(tag) ?? [];
+                  return (
+                    <div class="px-3 py-1.5">
+                      <div class="flex items-center gap-1.5">
+                        <span class="text-sm font-mono text-purple-700 font-semibold">
+                          {tag}
+                        </span>
+                        <Show when={activator()}>
+                          <span class="text-[10px] text-gray-400">
+                            ← {activator()}
+                          </span>
+                        </Show>
+                      </div>
+                      <Show when={mods().length > 0}>
+                        <div class="mt-1 space-y-0.5">
+                          <For each={mods()}>
+                            {(mod) => {
+                              const currentVal = () => values()[mod.target];
+                              return (
+                                <div class="text-[10px] text-gray-500 ml-2 flex items-center gap-1">
+                                  <span class="font-mono">{mod.target}</span>
+                                  <span>+{mod.expression}</span>
+                                  <Show when={currentVal() !== undefined}>
+                                    <span class="text-gray-400">
+                                      = {currentVal()}
+                                    </span>
+                                  </Show>
+                                </div>
+                              );
+                            }}
+                          </For>
+                        </div>
+                      </Show>
+                    </div>
+                  );
+                }}
+              </For>
+            </div>
+          </div>
+        </Show>
+
+        {/* Declared Variables */}
+        <Show when={groups().declared.length > 0}>
+          <div class="mb-3">
+            <div class="sticky top-0 bg-gray-100 px-3 py-1.5 border-b border-gray-200">
+              <span class="text-xs font-semibold text-gray-600">
+                声明变量
+              </span>
+            </div>
+            <div class="divide-y divide-gray-100">
+              <For each={groups().declared}>
+                {(item) => (
+                  <div class="flex items-center px-3 py-1.5 hover:bg-white/50 transition-colors">
+                    <div class="flex-1 min-w-0 flex items-center gap-1.5">
+                      <span class="text-sm font-mono text-gray-800">
+                        {item.key}
+                      </span>
+                      <span class="text-[10px] text-gray-400 bg-gray-100 px-1 rounded shrink-0">
+                        {item.expr}
+                      </span>
+                    </div>
+                    <div class="flex items-center gap-2 shrink-0">
+                      <span class="text-sm font-mono text-gray-700 font-semibold">
+                        {item.value}
+                      </span>
+                      <Show when={item.deps.length > 0}>
+                        <span class="text-[10px] text-gray-400">
+                          ← {item.deps.join(", ")}
+                        </span>
+                      </Show>
+                    </div>
+                  </div>
+                )}
+              </For>
+            </div>
+          </div>
+        </Show>
+
+        {/* Plain Variables */}
+        <Show when={groups().plain.length > 0}>
+          <div class="mb-3">
+            <div class="sticky top-0 bg-gray-100 px-3 py-1.5 border-b border-gray-200">
+              <span class="text-xs font-semibold text-gray-600">
+                直接设置
+              </span>
+            </div>
+            <div class="divide-y divide-gray-100">
+              <For each={groups().plain}>
+                {(item) => (
+                  <div class="flex items-center px-3 py-1.5 hover:bg-white/50 transition-colors">
+                    <span class="flex-1 text-sm font-mono text-gray-800">
+                      {item.key}
+                    </span>
+                    <span class="text-sm font-mono text-gray-700 font-semibold">
+                      {item.value}
+                    </span>
+                  </div>
+                )}
+              </For>
+            </div>
+          </div>
+        </Show>
+
+        {/* Tag Variables */}
+        <Show when={groups().tagVars.length > 0}>
+          <div class="mb-3">
+            <div class="sticky top-0 bg-gray-100 px-3 py-1.5 border-b border-gray-200">
+              <span class="text-xs font-semibold text-gray-600">标签变量</span>
+            </div>
+            <div class="divide-y divide-gray-100">
+              <For each={groups().tagVars}>
+                {(item) => (
+                  <div class="flex items-center px-3 py-1.5 hover:bg-white/50 transition-colors">
+                    <span class="flex-1 text-sm font-mono text-gray-800">
+                      {item.key}
+                    </span>
+                    <span class="text-sm font-mono text-purple-700 font-semibold">
+                      {item.value}
+                    </span>
+                  </div>
+                )}
+              </For>
+            </div>
+          </div>
+        </Show>
+      </Show>
+    </div>
+  );
+};

src/components/journal/command-completions.ts

@@ -23,7 +23,7 @@ export function buildCompletions(
     { label: "/roll", kind: "command" as const, insertText: "/roll " },
     { label: "/spark", kind: "command" as const, insertText: "/spark " },
     { label: "/link", kind: "command" as const, insertText: "/link " },
-    { label: "/stat", kind: "command" as const, insertText: "/stat " },
+    { label: "/set", kind: "command" as const, insertText: "/set " },
   ];
 
   // Show commands when user types / or starts typing a command name
@@ -33,7 +33,7 @@ export function buildCompletions(
       c.label.toLowerCase().startsWith(prefix),
     );
     if (!isGm) {
-      matches = matches.filter((c) => c.label === "/stat");
+      matches = matches.filter((c) => c.label === "/set");
     }
     return matches.length > 0
       ? matches
@@ -101,50 +101,43 @@ export function buildCompletions(
     });
   }
 
-  // After /stat — show subcommands or stat keys
+  // After /set — show known variable and tag names
-  if (raw.startsWith("/stat ")) {
+  if (raw.startsWith("/set ")) {
-    const rest = raw.slice("/stat ".length).trim();
+    const rest = raw.slice("/set ".length).trim();
 
-    if (!rest || rest.length < 3) {
+    // Already has a key? Show tag suggestions
-      const subs = ["set", "del", "roll"];
+    if (rest.includes(" ")) {
-      const matches = subs.filter((s) => s.startsWith(rest.toLowerCase()));
+      const afterSpace = rest.slice(rest.indexOf(" ") + 1).toLowerCase();
-      if (matches.length === 0)
+      const tags = data.tagModifiers.map((tm) => tm.tag);
-        return [{ label: "set/del/roll", kind: "no-results", insertText: "" }];
+      // Also gather unique tags from declarations
-      return matches.map((s) => ({
+      const uniqueTags = [...new Set(tags)];
-        label: `/stat ${s}`,
+      const matches = uniqueTags
-        kind: "value" as const,
+        .filter((t) => t.toLowerCase().startsWith(afterSpace))
-        insertText: `/stat ${s} `,
-      }));
-    }
-
-    if (rest.startsWith("set ")) {
-      const prefix = rest.slice("set ".length).toLowerCase();
-      const matches = data.stats
-        .filter((s) => s.key.toLowerCase().includes(prefix))
         .slice(0, 8);
-      if (matches.length === 0)
+      if (matches.length === 0) {
-        return [{ label: "未找到属性", kind: "no-results", insertText: "" }];
+        return [{ label: "输入表达式", kind: "no-results", insertText: "" }];
-      return matches.map((s) => ({
+      }
-        label: `${s.key} (${s.label})`,
+      return matches.map((t) => ({
+        label: t,
         kind: "value" as const,
-        insertText: `/stat set ${s.key}=`,
+        insertText: raw + t,
       }));
     }
 
-    if (rest.startsWith("del ") || rest.startsWith("roll ")) {
+    // Show variable name suggestions
-      const [cmd, ...restParts] = rest.split(" ");
+    const prefix = rest.toLowerCase();
-      const prefix = restParts.join(" ").toLowerCase();
+    const varNames = data.declarations.map((d) => d.key);
-      const matches = data.stats
+    const matches = varNames
-        .filter((s) => s.key.toLowerCase().startsWith(prefix))
+      .filter((v) => v.toLowerCase().startsWith(prefix))
-        .slice(0, 8);
+      .slice(0, 8);
-      if (matches.length === 0)
+    if (matches.length === 0) {
-        return [{ label: "未找到属性", kind: "no-results", insertText: "" }];
+      return [{ label: "$variable", kind: "no-results", insertText: "" }];
-      return matches.map((s) => ({
-        label: `${s.key} (${s.label})`,
-        kind: "value" as const,
-        insertText: `/stat ${cmd} ${s.key}`,
-      }));
     }
+    return matches.map((v) => ({
+      label: v,
+      kind: "value" as const,
+      insertText: `/set ${v} `,
+    }));
   }
 
   return [];

src/components/journal/command-dispatcher.ts

@@ -10,14 +10,9 @@ import { createSignal } from "solid-js";
 import { parseInput } from "./command-parser";
 import { resolveRollPayload } from "./types/roll";
 import { resolveSparkPayload } from "./types/spark";
-import {
+import { evaluateExpression, expressionIsTag } from "./variable-expression";
-  resolveStatRoll,
+import { computeCascade } from "./var-reactivity";
-  resolveTemplateSet,
+import type { VarDeclaration, TagModifier } from "./declare-parser";
-  canModifyStat,
-  fullKey,
-  findStatDef,
-} from "./stat-helpers";
-import type { StatDef, StatTemplate } from "./completions";
 
 // ---------------------------------------------------------------------------
 // Result
@@ -48,12 +43,12 @@ export interface DispatchContext {
   command: string;
   /** Spark table lookup data (from completions) */
   sparkTables: { slug: string; csvPath?: string; remix?: boolean }[];
-  /** Current runtime stat values */
+  /** Current runtime variable values */
-  statValues: Record<string, string>;
+  variables: Record<string, string>;
-  /** Stat definitions */
+  /** Variable declarations (from role=declare blocks) */
-  statDefs: StatDef[];
+  declarations: VarDeclaration[];
-  /** Stat templates */
+  /** Tag modifiers (from role=declare blocks) */
-  statTemplates: StatTemplate[];
+  tagModifiers: TagModifier[];
 }
 
 /**
@@ -76,18 +71,18 @@ export async function dispatchCommand(
   const parsed = parseInput(prefixed);
   if (parsed.error) return finish({ ok: false, error: parsed.error });
 
-  // Players: chat + stat commands only
+  // Players: chat + set commands only
   if (ctx.role === "player") {
     if (parsed.type === "chat") {
       const result = sendMessage("chat", { text: raw });
       return finish(unwrap(result));
     }
 
-    if (parsed.type === "stat") {
+    if (parsed.type === "set" || parsed.type === "rolltag") {
-      return finish(dispatchStat(parsed.payload as Record<string, unknown>, ctx));
+      return finish(dispatchSet(parsed.payload as Record<string, unknown>, ctx));
     }
 
-    return finish({ ok: false, error: "玩家只能发送聊天消息或使用 /stat 命令" });
+    return finish({ ok: false, error: "玩家只能发送聊天消息或使用 /set 命令" });
   }
 
   // GM: all commands
@@ -116,8 +111,8 @@ export async function dispatchCommand(
     }
   }
 
-  if (parsed.type === "stat") {
+  if (parsed.type === "set" || parsed.type === "rolltag") {
-    return finish(dispatchStat(parsed.payload as Record<string, unknown>, ctx));
+    return finish(dispatchSet(parsed.payload as Record<string, unknown>, ctx));
   }
 
   const result = sendMessage(parsed.type, parsed.payload);
@@ -131,76 +126,67 @@ function finish(r: DispatchResult): DispatchResult {
 }
 
 // ---------------------------------------------------------------------------
-// Stat dispatch
+// Set dispatch
 // ---------------------------------------------------------------------------
 
-function dispatchStat(
+function dispatchSet(
   payload: Record<string, unknown>,
   ctx: DispatchContext,
 ): DispatchResult {
-  const p = payload as { action?: string; key?: string; value?: string };
+  const p = payload as { key?: string; expr?: string; tags?: string[] };
 
-  if (p.action === "roll" && p.key) {
+  if (!p.key) {
-    const resolved = resolveStatRoll(
+    return { ok: false, error: "缺少变量名" };
-      p.key,
+  }
-      ctx.statDefs,
-      ctx.statValues,
-      ctx.myName,
-      ctx.statTemplates,
-    );
-    if (resolved.error) return { ok: false, error: resolved.error };
 
-    const result = sendMessage("stat", {
+  const key = p.key;
-      action: "set",
+  const oldValue = ctx.variables[key] ?? undefined;
-      key: resolved.fullKey,
+  let newValue: string;
-      value: resolved.value,
-    });
-    const r = unwrap(result);
-    if (!r.ok) return r;
 
-    if (resolved.modifiers) {
+  try {
-      for (const [mk, mv] of Object.entries(resolved.modifiers)) {
+    if (p.tags && p.tags.length > 0) {
-        sendMessage("stat", { action: "set", key: mk, value: mv });
+      // Rolltag: pick random tag
-      }
+      const idx = Math.floor(Math.random() * p.tags.length);
+      newValue = p.tags[idx];
+    } else if (p.expr && expressionIsTag(p.expr)) {
+      // Bare tag value
+      newValue = p.expr.trim();
+    } else if (p.expr) {
+      // Numeric expression — evaluate
+      const result = evaluateExpression(p.expr, {
+        lookup: (name: string) => {
+          const k = "$" + name;
+          return ctx.variables[k] ?? undefined;
+        },
+      });
+      newValue = String(result.value);
+    } else {
+      return { ok: false, error: "缺少表达式" };
     }
-    return { ok: true };
+  } catch (e) {
+    return {
+      ok: false,
+      error: e instanceof Error ? e.message : "表达式求值失败",
+    };
   }
 
-  if (!p.action || !p.key) {
+  // Send the direct set
-    return { ok: false, error: "无效的 stat 命令" };
+  const r1 = sendMessage("var", { action: "set", key, value: newValue });
-  }
+  const u1 = unwrap(r1);
+  if (!u1.ok) return u1;
 
-  const fk = resolveKey(p.key, ctx.statDefs, ctx.myName);
+  // Build working variable store for cascade
+  const workingVars = { ...ctx.variables, [key]: newValue };
 
-  if (!canModifyStat(ctx.role, ctx.myName, fk, ctx.statDefs)) {
+  // Compute cascade (tag activation/deactivation + declaration re-eval)
-    return { ok: false, error: `无权修改属性: ${p.key}` };
+  try {
-  }
+    const cascade = computeCascade(key, oldValue, workingVars);
-
+    for (const change of cascade) {
-  const result = sendMessage("stat", {
+      sendMessage("var", { action: "set", key: change.key, value: change.value });
-    action: p.action,
-    key: fk,
-    value: p.value,
-  });
-  const r = unwrap(result);
-  if (!r.ok) return r;
-
-  if (p.action === "set" && p.value) {
-    const def = findStatDef(fk, ctx.statDefs, ctx.myName);
-    if (def) {
-      const modifiers = resolveTemplateSet(
-        def,
-        p.value,
-        ctx.statDefs,
-        ctx.statValues,
-        ctx.myName,
-        ctx.statTemplates,
-      );
-      if (modifiers) {
-        for (const [mk, mv] of Object.entries(modifiers)) {
-          sendMessage("stat", { action: "set", key: mk, value: mv });
-        }
-      }
     }
+  } catch (e) {
+    // Cascade errors are non-fatal — the direct set already succeeded
+    console.warn("[dispatch] cascade error:", e);
   }
 
   return { ok: true };
@@ -210,21 +196,9 @@ function dispatchStat(
 // Helpers
 // ---------------------------------------------------------------------------
 
-/** Resolve a bare or full key to the actual runtime key. */
-function resolveKey(
-  inputKey: string,
-  statDefs: StatDef[],
-  playerName: string,
-): string {
-  if (statDefs.some((d) => fullKey(d, playerName) === inputKey)) return inputKey;
-  const def = statDefs.find((d) => d.key === inputKey);
-  if (def) return fullKey(def, playerName);
-  return inputKey;
-}
-
 /** Unwrap a sendMessage result into DispatchResult. */
 function unwrap<R>(
   r: { success: true; msg: R } | { success: false; error: string },
 ): DispatchResult {
   return r.success ? { ok: true } : { ok: false, error: r.error };
-}
+}

src/components/journal/command-parser.ts

@@ -12,7 +12,7 @@ export interface CompletionItem {
 }
 
 export interface ParsedInput {
-  type: "chat" | "roll" | "spark" | "link" | "stat";
+  type: "chat" | "roll" | "spark" | "link" | "set" | "rolltag";
   payload: Record<string, unknown>;
   error?: string;
 }
@@ -41,41 +41,35 @@ export function parseInput(raw: string): ParsedInput {
     return { type: "link", payload: { path, section } };
   }
 
-  if (raw.startsWith("/stat ")) {
+  if (raw.startsWith("/set ")) {
-    const arg = raw.slice("/stat ".length).trim();
+    const rest = raw.slice("/set ".length).trim();
-    if (!arg)
+    if (!rest)
-      return { type: "stat", payload: {}, error: "需要 stat 命令 (set/del/roll)" };
+      return { type: "set", payload: {}, error: "格式: /set $key expression" };
 
-    if (arg.startsWith("set ")) {
+    // Split on first space to get key and expression
-      const rest = arg.slice("set ".length).trim();
+    const spaceIdx = rest.indexOf(" ");
-      const eqIdx = rest.indexOf("=");
+    if (spaceIdx === -1)
-      if (eqIdx === -1)
+      return { type: "set", payload: {}, error: "格式: /set $key expression" };
-        return { type: "stat", payload: {}, error: "格式: /stat set key=value" };
+
-      const key = rest.slice(0, eqIdx).trim();
+    const key = rest.slice(0, spaceIdx).trim();
-      const value = rest.slice(eqIdx + 1).trim();
+    const expr = rest.slice(spaceIdx + 1).trim();
-      if (!key || !value)
+
-        return { type: "stat", payload: {}, error: "key 和 value 不能为空" };
+    if (!key || !expr)
-      return { type: "stat", payload: { action: "set", key, value } };
+      return { type: "set", payload: {}, error: "key 和 expression 不能为空" };
+
+    if (!key.startsWith("$"))
+      return { type: "set", payload: {}, error: "key 必须以 $ 开头" };
+
+    // Check if expr is a rolltag (e.g. #w|#d|#s)
+    if (expr.includes("|") && expr.split("|").every((t) => t.trim().startsWith("#"))) {
+      const tags = expr.split("|").map((t) => t.trim());
+      return { type: "rolltag", payload: { key, tags } };
     }
 
-    if (arg.startsWith("del ")) {
+    return { type: "set", payload: { key, expr } };
-      const key = arg.slice("del ".length).trim();
-      if (!key)
-        return { type: "stat", payload: {}, error: "格式: /stat del key" };
-      return { type: "stat", payload: { action: "del", key } };
-    }
-
-    if (arg.startsWith("roll ")) {
-      const key = arg.slice("roll ".length).trim();
-      if (!key)
-        return { type: "stat", payload: {}, error: "格式: /stat roll key" };
-      return { type: "stat", payload: { action: "roll", key } };
-    }
-
-    return { type: "stat", payload: {}, error: "未知 stat 子命令: set/del/roll" };
   }
 
-  if (raw === "/roll" || raw === "/spark" || raw === "/link" || raw === "/stat") {
+  if (raw === "/roll" || raw === "/spark" || raw === "/link" || raw === "/set") {
     return { type: "chat", payload: {}, error: "请补全命令" };
   }
 

src/components/journal/completions.ts

@@ -2,7 +2,8 @@
  * Journal completions — client-side loader for /__COMPLETIONS.json
  *
  * In CLI mode, fetches the pre-computed index. In dev/browser mode, falls
- * back to scanning the in-memory file index for dice expressions and headings.
+ * back to scanning the in-memory file index for dice expressions, headings,
+ * and declare blocks.
  *
  * The fetch runs eagerly on module import. Call `useJournalCompletions()`
  * from any Solid component to reactively read the state.
@@ -15,13 +16,6 @@ import {
   getPathsByExtension,
   getIndexedData,
 } from "../../data-loader/file-index";
-import {
-  parseStatYaml,
-  parseStatCsv,
-  parseTemplateCsv,
-  parseStatModifiers,
-} from "../../cli/completions/stat-parser";
-import type { StatDef, StatTemplate } from "../../cli/completions/stat-parser";
 import {
   FENCED_BLOCK_RE,
   parseBlockAttrs,
@@ -29,8 +23,11 @@ import {
 import {
   scanDirectives,
 } from "../../cli/completions/directive-scanner";
+import { parseDeclareCsv } from "./declare-parser";
+import type { VarDeclaration, TagModifier } from "./declare-parser";
+import { initReactivity } from "./var-reactivity";
 
-export type { StatDef, StatTemplate };
+export type { VarDeclaration, TagModifier };
 
 // ------------------- Types (mirrors CLI) -------------------
 
@@ -60,8 +57,8 @@ export interface JournalCompletions {
   dice: DiceCompletion[];
   links: LinkCompletion[];
   sparkTables: SparkTableCompletion[];
-  stats: StatDef[];
+  declarations: VarDeclaration[];
-  statTemplates: StatTemplate[];
+  tagModifiers: TagModifier[];
 }
 
 export type CompletionsState =
@@ -87,9 +84,11 @@ async function tryServer(): Promise<JournalCompletions | null> {
       dice: Array.isArray(data.dice) ? data.dice : [],
       links: Array.isArray(data.links) ? data.links : [],
       sparkTables: Array.isArray(data.sparkTables) ? data.sparkTables : [],
-      stats: Array.isArray(data.stats) ? data.stats : [],
+      declarations: Array.isArray(data.declarations)
-      statTemplates: Array.isArray(data.statTemplates)
+        ? data.declarations
-        ? data.statTemplates
+        : [],
+      tagModifiers: Array.isArray(data.tagModifiers)
+        ? data.tagModifiers
         : [],
     };
   } catch {
@@ -104,8 +103,8 @@ async function scanClientSide(): Promise<JournalCompletions> {
   const dice: DiceCompletion[] = [];
   const links: LinkCompletion[] = [];
   const sparkTables: SparkTableCompletion[] = [];
-  const stats: StatDef[] = [];
+  const declarations: VarDeclaration[] = [];
-  const statTemplates: StatTemplate[] = [];
+  const tagModifiers: TagModifier[] = [];
 
   // Build a temporary index for resolving CSV paths
   const tempIndex: Record<string, string> = {};
@@ -135,7 +134,7 @@ async function scanClientSide(): Promise<JournalCompletions> {
       });
     }
 
-    // ---- Unified block scanning (stats) ----
+    // ---- Unified block scanning (declare) ----
     FENCED_BLOCK_RE.lastIndex = 0;
     let blockMatch: RegExpExecArray | null;
     while ((blockMatch = FENCED_BLOCK_RE.exec(content)) !== null) {
@@ -143,26 +142,15 @@ async function scanClientSide(): Promise<JournalCompletions> {
       const attrs = parseBlockAttrs(infoString);
       attrs.lang = attrs.lang || lang;
 
-      if (attrs.role === "stat") {
+      if (attrs.role === "declare") {
-        if (attrs.lang === "yaml" || attrs.lang === "yml") {
+        try {
-          stats.push(...parseStatYaml(body, filePath));
+          const result = parseDeclareCsv(body, filePath);
-        } else if (attrs.lang === "csv") {
+          declarations.push(...result.variables);
-          stats.push(...parseStatCsv(body, filePath));
+          tagModifiers.push(...result.tagModifiers);
+        } catch (e) {
+          console.warn(`[completions] ${filePath}: ${e}`);
         }
       }
-
-      if (attrs.role === "stat-template") {
-        const name = attrs.id || `_tpl_${filePath}_${stats.length}`;
-        statTemplates.push(parseTemplateCsv(body, filePath, name));
-      }
-
-      if (attrs.role === "stat-modifiers") {
-        const id = attrs.id || `_mod_${filePath}_${stats.length}`;
-        const result = parseStatModifiers(body, filePath, id, "player", attrs.extra["label"]);
-        stats.push(result.statDef);
-        stats.push(...result.modifierDefs);
-        statTemplates.push(result.template);
-      }
     }
 
     // ---- Directive scanning (dice + spark tables) ----
@@ -172,7 +160,7 @@ async function scanClientSide(): Promise<JournalCompletions> {
     sparkTables.push(...directiveResult.sparkTables);
   }
 
-  return { dice, links, sparkTables, stats, statTemplates };
+  return { dice, links, sparkTables, declarations, tagModifiers };
 }
 
 // ------------------- Init (runs eagerly at import time) -------------------
@@ -183,6 +171,7 @@ const _initPromise: Promise<void> = (async () => {
   const serverData = await tryServer();
   if (serverData) {
     setCompletionsState({ status: "loaded", data: serverData });
+    try { initReactivity({ declarations: serverData.declarations, tagModifiers: serverData.tagModifiers }); } catch (e) { console.warn("[completions] reactivity init error:", e); }
     return;
   }
 
@@ -191,6 +180,7 @@ const _initPromise: Promise<void> = (async () => {
     const data = await scanClientSide();
     if (data.dice.length > 0 || data.links.length > 0) {
       setCompletionsState({ status: "loaded", data });
+      try { initReactivity({ declarations: data.declarations, tagModifiers: data.tagModifiers }); } catch (e) { console.warn("[completions] reactivity init error:", e); }
     } else {
       setCompletionsState({ status: "empty" });
     }
@@ -216,8 +206,6 @@ export function ensureCompletions(): Promise<void> {
 let _invalidated = false;
 export function invalidateCompletions(): void {
   _invalidated = true;
-  // On next import (page reload), the module will re-init.
-  // For a runtime invalidation, you could call init again.
 }
 
 /**
@@ -238,8 +226,8 @@ export function useJournalCompletions(): {
       dice: [],
       links: [],
       sparkTables: [],
-      stats: [],
+      declarations: [],
-      statTemplates: [],
+      tagModifiers: [],
     },
   };
-}
+}

src/components/journal/index.ts

@@ -51,5 +51,16 @@ export { DynamicForm } from "./DynamicForm";
 export { useJournalCompletions, invalidateCompletions } from "./completions";
 export { dispatchCommand } from "./command-dispatcher";
 export type { DispatchContext, DispatchResult } from "./command-dispatcher";
+export { parseInput } from "./command-parser";
+export type { ParsedInput, CompletionItem } from "./command-parser";
+export { buildCompletions } from "./command-completions";
+export type { CompletionsContext } from "./command-completions";
+export { VariableView } from "./VariableView";
+export { parseDeclareCsv } from "./declare-parser";
+export type { VarDeclaration, TagModifier } from "./declare-parser";
+export { evaluateExpression, expressionIsTag } from "./variable-expression";
+export type { EvalContext, EvalResult } from "./variable-expression";
+export { initReactivity, computeCascade, computeActiveTags, extractDependencies } from "./var-reactivity";
+export type { VarReactivityState, VariableStore } from "./var-reactivity";
 export { JournalContext, useJournalContext } from "./JournalContext";
 export type { JournalContextValue } from "./JournalContext";

src/components/journal/stat-formula.ts

@@ -1,216 +0,0 @@
-/**
- * Minimal expression evaluator for derived stat formulas.
- *
- * Supports:
- *   - Stat references: any identifier resolves to a number from the lookup
- *   - Arithmetic: + - * /
- *   - Functions: floor(x), ceil(x), round(x)
- *   - Parentheses for grouping
- */
-
-export type StatLookup = (key: string) => number;
-
-/** Evaluate a formula string against a stat lookup function. */
-export function evaluateFormula(formula: string, lookup: StatLookup): number {
-  const tokens = tokenize(formula);
-  const result = parseExpression(tokens, 0, lookup);
-  if (result.next < tokens.length) {
-    throw new Error(`Unexpected token at position ${result.next}: "${tokens[result.next]}"`);
-  }
-  return result.value;
-}
-
-// ---------------------------------------------------------------------------
-// Tokenizer
-// ---------------------------------------------------------------------------
-
-type Token =
-  | { kind: "number"; value: number }
-  | { kind: "ident"; value: string }
-  | { kind: "op"; value: string }
-  | { kind: "lparen" }
-  | { kind: "rparen" }
-  | { kind: "comma" };
-
-function tokenize(input: string): Token[] {
-  const tokens: Token[] = [];
-  let i = 0;
-
-  while (i < input.length) {
-    const ch = input[i];
-
-    // Whitespace
-    if (/\s/.test(ch)) {
-      i++;
-      continue;
-    }
-
-    // Number (integer or decimal)
-    if (/[0-9]/.test(ch)) {
-      let num = "";
-      while (i < input.length && /[0-9.]/.test(input[i])) {
-        num += input[i];
-        i++;
-      }
-      tokens.push({ kind: "number", value: parseFloat(num) });
-      continue;
-    }
-
-    // Identifier or function name
-    if (/[a-zA-Z_]/.test(ch)) {
-      let ident = "";
-      while (i < input.length && /[a-zA-Z0-9_]/.test(input[i])) {
-        ident += input[i];
-        i++;
-      }
-      tokens.push({ kind: "ident", value: ident });
-      continue;
-    }
-
-    // Operators and punctuation
-    switch (ch) {
-      case "+":
-      case "-":
-      case "*":
-      case "/":
-        tokens.push({ kind: "op", value: ch });
-        i++;
-        break;
-      case "(":
-        tokens.push({ kind: "lparen" });
-        i++;
-        break;
-      case ")":
-        tokens.push({ kind: "rparen" });
-        i++;
-        break;
-      case ",":
-        tokens.push({ kind: "comma" });
-        i++;
-        break;
-      default:
-        throw new Error(`Unexpected character: "${ch}"`);
-    }
-  }
-
-  return tokens;
-}
-
-// ---------------------------------------------------------------------------
-// Recursive descent parser
-// ---------------------------------------------------------------------------
-
-interface ParseResult {
-  value: number;
-  next: number; // index of next unconsumed token
-}
-
-/** expression := term (("+" | "-") term)* */
-function parseExpression(tokens: Token[], pos: number, lookup: StatLookup): ParseResult {
-  let result = parseTerm(tokens, pos, lookup);
-  pos = result.next;
-
-  while (pos < tokens.length) {
-    const tok = tokens[pos];
-    if (tok.kind === "op" && (tok.value === "+" || tok.value === "-")) {
-      const right = parseTerm(tokens, pos + 1, lookup);
-      if (tok.value === "+") {
-        result = { value: result.value + right.value, next: right.next };
-      } else {
-        result = { value: result.value - right.value, next: right.next };
-      }
-      pos = result.next;
-    } else {
-      break;
-    }
-  }
-
-  return result;
-}
-
-/** term := factor (("*" | "/") factor)* */
-function parseTerm(tokens: Token[], pos: number, lookup: StatLookup): ParseResult {
-  let result = parseFactor(tokens, pos, lookup);
-  pos = result.next;
-
-  while (pos < tokens.length) {
-    const tok = tokens[pos];
-    if (tok.kind === "op" && (tok.value === "*" || tok.value === "/")) {
-      const right = parseFactor(tokens, pos + 1, lookup);
-      if (tok.value === "*") {
-        result = { value: result.value * right.value, next: right.next };
-      } else {
-        if (right.value === 0) throw new Error("Division by zero");
-        result = { value: result.value / right.value, next: right.next };
-      }
-      pos = result.next;
-    } else {
-      break;
-    }
-  }
-
-  return result;
-}
-
-/** factor := number | ident ["(" expression ")"] | "(" expression ")" | "-" factor */
-function parseFactor(tokens: Token[], pos: number, lookup: StatLookup): ParseResult {
-  if (pos >= tokens.length) {
-    throw new Error("Unexpected end of formula");
-  }
-
-  const tok = tokens[pos];
-
-  // Unary minus
-  if (tok.kind === "op" && tok.value === "-") {
-    const inner = parseFactor(tokens, pos + 1, lookup);
-    return { value: -inner.value, next: inner.next };
-  }
-
-  // Number literal
-  if (tok.kind === "number") {
-    return { value: tok.value, next: pos + 1 };
-  }
-
-  // Parenthesized expression
-  if (tok.kind === "lparen") {
-    const inner = parseExpression(tokens, pos + 1, lookup);
-    if (inner.next >= tokens.length || tokens[inner.next].kind !== "rparen") {
-      throw new Error("Missing closing parenthesis");
-    }
-    return { value: inner.value, next: inner.next + 1 };
-  }
-
-  // Identifier (stat reference or function call)
-  if (tok.kind === "ident") {
-    const name = tok.value;
-
-    // Check for function call: ident "(" ...
-    if (pos + 1 < tokens.length && tokens[pos + 1].kind === "lparen") {
-      const arg = parseExpression(tokens, pos + 2, lookup);
-      if (arg.next >= tokens.length || tokens[arg.next].kind !== "rparen") {
-        throw new Error(`Missing closing parenthesis after ${name}(...)`);
-      }
-      const value = applyFunction(name, arg.value);
-      return { value, next: arg.next + 1 };
-    }
-
-    // Plain stat reference
-    const value = lookup(name);
-    return { value, next: pos + 1 };
-  }
-
-  throw new Error(`Unexpected token: "${JSON.stringify(tok)}"`);
-}
-
-function applyFunction(name: string, arg: number): number {
-  switch (name.toLowerCase()) {
-    case "floor":
-      return Math.floor(arg);
-    case "ceil":
-      return Math.ceil(arg);
-    case "round":
-      return Math.round(arg);
-    default:
-      throw new Error(`Unknown function: ${name}`);
-  }
-}

src/components/journal/stat-helpers.ts

@@ -1,323 +0,0 @@
-/**
- * Stat command helpers — stat resolution, permission checking, and
- * dice-formula stat-reference expansion.
- *
- * Extracted from JournalInput to keep that component focused on UI.
- */
-
-import { rollFormula } from "../md-commander/hooks";
-import { evaluateFormula } from "./stat-formula";
-import type { StatDef, StatTemplate } from "./completions";
-
-// ---------------------------------------------------------------------------
-// Key resolution
-// ---------------------------------------------------------------------------
-
-/** Get the full runtime key for a stat def, given a player name. */
-export function fullKey(def: StatDef, playerName: string): string {
-  return def.scope === "player" ? `${playerName}:${def.key}` : def.key;
-}
-
-/**
- * Derive a display label for a modifier stat.
- *
- * If the key follows the `{parent}_{target}` convention (from stat-modifiers),
- * returns `{parent_label}/{target_label}` by looking up both defs.
- * Otherwise falls back to the def's own label.
- */
-export function modifierLabel(
-  def: StatDef,
-  statDefs: StatDef[],
-): string {
-  if (def.type !== "modifier") return def.label;
-
-  // Try to split key as parent_target
-  const lastUnderscore = def.key.lastIndexOf("_");
-  if (lastUnderscore === -1) return def.label;
-
-  const parentKey = def.key.slice(0, lastUnderscore);
-  const targetKey = def.key.slice(lastUnderscore + 1);
-
-  const parentDef = statDefs.find((d) => d.key === parentKey);
-  const targetDef = statDefs.find((d) => d.key === targetKey);
-
-  if (parentDef && targetDef) {
-    return `${parentDef.label}/${targetDef.label}`;
-  }
-
-  return def.label;
-}
-
-/** Find a stat def by its full runtime key. */
-export function findStatDef(
-  fk: string,
-  statDefs: StatDef[],
-  playerName: string,
-): StatDef | undefined {
-  return statDefs.find((d) => fullKey(d, playerName) === fk);
-}
-
-// ---------------------------------------------------------------------------
-// Formula stat reference resolution
-// ---------------------------------------------------------------------------
-
-/**
- * Replace stat key references in a dice formula (e.g. "1d20 + attack")
- * with their numeric values, so the result can be passed to rollFormula.
- *
- * Bare keys in formulas resolve relative to the caller's scope: if the
- * caller def is `scope: player`, then `attack` resolves to `alice:attack`.
- */
-export function resolveStatRefs(
-  formula: string,
-  lookup: (key: string) => number,
-): string {
-  return formula.replace(/[a-zA-Z_]\w*/g, (match) => {
-    if (/^d\d/i.test(match)) return match;
-    if (/^[kdh]\d/i.test(match)) return match;
-    const val = lookup(match);
-    return String(val);
-  });
-}
-
-/**
- * Build a stat lookup function that resolves bare keys to numbers.
- * Bare keys are scoped by `playerName` if the originating def is player-scoped.
- */
-export function makeStatLookup(
-  runtimeStats: Record<string, string>,
-  statDefs: StatDef[],
-  playerName: string,
-  /** The def that references are being resolved for (for scoping bare keys). */
-  callerDef?: StatDef,
-): (bareKey: string) => number {
-  return (bareKey: string): number => {
-    // Try as a full key first, then try scoped
-    const candidates = [bareKey];
-    if (callerDef && callerDef.scope === "player") {
-      candidates.push(`${playerName}:${bareKey}`);
-    }
-
-    for (const k of candidates) {
-      const val = runtimeStats[k];
-      if (val !== undefined) {
-        const n = parseFloat(val);
-        if (!isNaN(n)) return n;
-      }
-      const sdef = statDefs.find((d) => fullKey(d, playerName) === k);
-      if (sdef?.default !== undefined) {
-        const n = parseFloat(sdef.default);
-        if (!isNaN(n)) return n;
-      }
-    }
-    return 0;
-  };
-}
-
-// ---------------------------------------------------------------------------
-// Permission
-// ---------------------------------------------------------------------------
-
-/** Check whether a role can modify a given stat key. */
-export function canModifyStat(
-  role: string,
-  myName: string,
-  fullKey: string,
-  statDefs: StatDef[],
-): boolean {
-  if (role === "gm") return true;
-  if (role === "observer") return false;
-
-  const def = findStatDef(fullKey, statDefs, myName);
-  if (!def) return false;
-  if (def.scope === "player") {
-    return fullKey.startsWith(myName + ":");
-  }
-  // Global stats: player can't modify
-  return false;
-}
-
-// ---------------------------------------------------------------------------
-// Roll resolution
-// ---------------------------------------------------------------------------
-
-export interface StatRollResult {
-  fullKey: string;
-  value: string;
-  error?: string;
-  /** For template rolls: additional modifier keys → values to apply */
-  modifiers?: Record<string, string>;
-}
-
-/**
- * When a template-type stat is set explicitly (not rolled), look up the
- * template entry by label and return the modifier overrides to apply.
- * Returns null if the stat is not a template type or the label doesn't match.
- */
-export function resolveTemplateSet(
-  def: StatDef,
-  value: string,
-  statDefs: StatDef[],
-  runtimeStats: Record<string, string>,
-  playerName: string,
-  templates?: StatTemplate[],
-): Record<string, string> | null {
-  if (def.type !== "template" || !def.template) return null;
-
-  const tpl = templates?.find((t) => t.name === def.template);
-  if (!tpl) return null;
-
-  const entry = tpl.entries.find((e) => e.label === value);
-  if (!entry || Object.keys(entry.modifiers).length === 0) return null;
-
-  const resolved: Record<string, string> = {};
-
-  for (const [mk, mv] of Object.entries(entry.modifiers)) {
-    const modFullKey = def.scope === "player" ? `${playerName}:${mk}` : mk;
-    resolved[modFullKey] = mv;
-  }
-
-  return resolved;
-}
-
-/**
- * Resolve a /stat roll command: look up the stat definition (by bare or full
- * key), evaluate the appropriate resolution strategy, and return the string
- * value to publish.
- */
-export function resolveStatRoll(
-  inputKey: string,
-  statDefs: StatDef[],
-  runtimeStats: Record<string, string>,
-  playerName: string,
-  templates?: StatTemplate[],
-): StatRollResult {
-  // Try exact match first, then resolve bare key → full key
-  let def = statDefs.find((d) => fullKey(d, playerName) === inputKey);
-  if (!def) {
-    // Try bare key: find a player-scoped def whose fullKey would match
-    def = statDefs.find(
-      (d) => d.scope === "player" && fullKey(d, playerName) === inputKey,
-    );
-  }
-  if (!def) {
-    // Try finding a bare key match (for global or player)
-    def = statDefs.find((d) => d.key === inputKey);
-  }
-
-  if (!def) {
-    return { fullKey: inputKey, value: "", error: `未知属性: ${inputKey}` };
-  }
-
-  const fk = fullKey(def, playerName);
-  const lookup = makeStatLookup(runtimeStats, statDefs, playerName, def);
-
-  if (def.type === "template" && def.template) {
-    const tpl = templates?.find((t) => t.name === def.template);
-    if (!tpl || tpl.entries.length === 0) {
-      return {
-        fullKey: fk,
-        value: "",
-        error: `未找到模板: ${def.template}`,
-      };
-    }
-
-    // Roll the dice to pick an entry (use template's notation)
-    const formula = tpl.notation || "1d" + String(tpl.entries.length);
-    const resolvedFormula = resolveStatRefs(formula, lookup);
-    const roll = rollFormula(resolvedFormula);
-    const rolled = roll.result.total;
-
-    // Find matching entry by range
-    const entry = matchTemplateRange(rolled, tpl.entries);
-    if (!entry) {
-      return {
-        fullKey: fk,
-        value: "",
-        error: `模板 "${def.template}" 中未找到匹配 ${rolled} 的条目`,
-      };
-    }
-
-    // Resolve modifier keys to full keys (same scope as def)
-    // Template values are absolute — set the modifier stat directly.
-    // The modifier stat (type: modifier) adds to its target in StatsView.
-    const resolvedModifiers: Record<string, string> = {};
-    for (const [mk, mv] of Object.entries(entry.modifiers)) {
-      const modFullKey = def.scope === "player" ? `${playerName}:${mk}` : mk;
-      resolvedModifiers[modFullKey] = mv;
-    }
-
-    return {
-      fullKey: fk,
-      value: entry.label,
-      modifiers: resolvedModifiers,
-    };
-  }
-
-  if (def.type === "enum" && def.options && def.options.length > 0) {
-    const idx = Math.floor(Math.random() * def.options.length);
-    return { fullKey: fk, value: def.options[idx] };
-  }
-
-  if (def.type === "derived" && def.formula) {
-    try {
-      const result = evaluateFormula(def.formula, lookup);
-      return { fullKey: fk, value: String(result) };
-    } catch (e) {
-      return {
-        fullKey: fk,
-        value: "",
-        error: e instanceof Error ? e.message : "公式计算失败",
-      };
-    }
-  }
-
-  if (def.roll) {
-    const resolvedFormula = resolveStatRefs(def.roll, lookup);
-    const roll = rollFormula(resolvedFormula);
-    return { fullKey: fk, value: String(roll.result.total) };
-  }
-
-  return { fullKey: fk, value: "", error: `属性 "${inputKey}" 不支持掷骰` };
-}
-
-// ---------------------------------------------------------------------------
-// Template range matching
-// ---------------------------------------------------------------------------
-
-/**
- * Match a rolled number against template entries with range strings.
- *
- * Range formats:
- *   "1-3"  → inclusive range
- *   "4"    → exact match
- *   "1-3,5" → multiple ranges
- *
- * Returns the first matching entry, or undefined.
- */
-function matchTemplateRange(
-  rolled: number,
-  entries: {
-    range: string;
-    label: string;
-    modifiers: Record<string, string>;
-  }[],
-): (typeof entries)[number] | undefined {
-  for (const entry of entries) {
-    const parts = entry.range.split(",").map((s) => s.trim());
-    for (const part of parts) {
-      if (part.includes("-")) {
-        const [lo, hi] = part.split("-").map(Number);
-        if (!isNaN(lo) && !isNaN(hi) && rolled >= lo && rolled <= hi) {
-          return entry;
-        }
-      } else {
-        const n = Number(part);
-        if (!isNaN(n) && rolled === n) {
-          return entry;
-        }
-      }
-    }
-  }
-  return undefined;
-}

src/components/journal/types/index.ts

@@ -10,4 +10,4 @@ import "./roll";
 import "./spark";
 import "./link";
 import "./intent";
-import "./stat";
+import "./var";

src/components/journal/types/var.tsx

@@ -1,12 +1,12 @@
 /**
- * Built-in message type: stat
+ * Built-in message type: var
  *
  * Emitters: gm, player
- * Command: /stat set key=value | /stat del key | /stat roll key
+ * Command: /set $key expression
  *
- * Stat definitions are discovered from ```stat YAML blocks in markdown
+ * Variable declarations and tag modifiers are authored in ```csv role=declare
- * documents. The stream carries set/del mutations that build up the
+ * code blocks in markdown documents. The stream carries set/del mutations
- * runtime stat store additively.
+ * that build up the runtime variable store additively.
  */
 
 import { z } from "zod";
@@ -20,11 +20,11 @@ const schema = z.object({
   value: z.string().optional(),
 });
 
-export type StatPayload = z.infer<typeof schema>;
+export type VarPayload = z.infer<typeof schema>;
 
-registerMessageType<StatPayload>({
+registerMessageType<VarPayload>({
-  type: "stat",
+  type: "var",
-  label: "属性",
+  label: "变量",
   emitters: ["gm", "player"],
   schema,
   defaultPayload: () => ({ action: "set", key: "", value: "" }),
@@ -32,7 +32,7 @@ registerMessageType<StatPayload>({
     if (p.action === "del") {
       return (
         <div class="flex items-center gap-1.5">
-          <span class="text-lg">📊</span>
+          <span class="text-lg">🔢</span>
           <span class="font-mono text-sm text-gray-500 line-through">
             {p.key}
           </span>
@@ -41,9 +41,9 @@ registerMessageType<StatPayload>({
     }
     return (
       <div class="flex items-center gap-1.5">
-        <span class="text-lg">📊</span>
+        <span class="text-lg">🔢</span>
         <span class="font-mono text-sm">
-          {p.key} → <span class="font-bold">{p.value}</span>
+          {p.key} = <span class="font-bold">{p.value}</span>
         </span>
       </div>
     );
@@ -52,11 +52,11 @@ registerMessageType<StatPayload>({
     journalSetState(
       produce((s) => {
         if (p.action === "del") {
-          delete s.stats[p.key];
+          delete s.variables[p.key];
         } else if (p.value !== undefined) {
-          s.stats[p.key] = p.value;
+          s.variables[p.key] = p.value;
         }
       }),
     );
   },
-});
+});

src/components/stores/journalStream.ts

@@ -44,7 +44,7 @@ export interface JournalStreamState {
   myRole: "gm" | "player" | "observer";
   brokerUrl: string | null;
   players: Record<string, { role: string }>;
-  stats: Record<string, string>;
+  variables: Record<string, string>;
 }
 
 export interface SessionMeta {
@@ -96,7 +96,7 @@ const [state, setState] = createStore<JournalStreamState>({
   myRole: (persisted.myRole as "gm" | "player" | "observer") || "gm",
   brokerUrl: persisted.brokerUrl,
   players: {},
-  stats: {},
+  variables: {},
 });
 
 if (initialName && !urlParams.playerName) syncUrlParam("player", initialName);
@@ -126,7 +126,7 @@ function runReducer(msg: StreamMessage): void {
 function replayReducers(): void {
   // Reset derived state
   setState("revealedPaths", {});
-  setState("stats", {});
+  setState("variables", {});
   for (const msg of state.messages) {
     runReducer(msg);
   }
@@ -160,7 +160,7 @@ function handlePatch(patch: WorkerPatch): void {
         syncUrlParam("player", patch.state.myName);
       }
       saveRole(patch.state.myRole);
-      // Rebuild derived state (revealedPaths, stats) by replaying reducers
+      // Rebuild derived state (revealedPaths, variables) by replaying reducers
       replayReducers();
       break;
     }