first commit

terminal/packages/terminal-core/src/index.ts

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+/**
+ * @remoteconn/terminal-core
+ * 零 DOM 跨平台终端核心库 — 供 Web/iOS/微信小程序三端共用。
+ */
+
+// ── 基础类型 ──────────────────────────────────────────────────────────────────
+export type {
+  SessionState,
+  ConnectParams,
+  TerminalCredential,
+  FrameMeta,
+  TransportEvent,
+  TransportEventListener,
+  ColorValue,
+  CharAttribs,
+  TerminalCell,
+  TerminalLine,
+  CursorState,
+  TerminalSnapshot,
+} from "./types";
+
+export {
+  DEFAULT_FG,
+  DEFAULT_BG,
+  DEFAULT_COLOR,
+  FLAG_BOLD,
+  FLAG_DIM,
+  FLAG_ITALIC,
+  FLAG_UNDERLINE,
+  FLAG_BLINK,
+  FLAG_INVERSE,
+  FLAG_INVISIBLE,
+  FLAG_STRIKETHROUGH,
+  FLAG_OVERLINE,
+  makeDefaultAttribs,
+  copyAttribs,
+  makeBlankCell,
+} from "./types";
+
+// ── 接口 ──────────────────────────────────────────────────────────────────────
+export type { TerminalTransport } from "./transport/terminalTransport";
+export type { RendererAdapter }   from "./renderer/rendererAdapter";
+export type { IInputSource, InputEventMap, KeyPayload, InputPayload, PastePayload, CompositionPayload } from "./input/IInputSource";
+export type { IMeasureAdapter }   from "./layout/IMeasureAdapter";
+
+// ── Session ───────────────────────────────────────────────────────────────────
+export { SessionMachine, canTransition, assertTransition } from "./session/sessionMachine";
+
+// ── Core ──────────────────────────────────────────────────────────────────────
+export { TerminalCore }     from "./renderer/terminalCore";
+export { OutputBuffer }     from "./renderer/outputBuffer";
+export type { OutputBufferOptions } from "./renderer/outputBuffer";
+
+// ── Input ─────────────────────────────────────────────────────────────────────
+export { InputBridge }      from "./input/inputBridge";
+export type { InputBridgeOptions, CursorKeyMode } from "./input/inputBridge";
+export { ImeController }    from "./input/imeController";
+export type { ImeState }    from "./input/imeController";
+
+// ── Layout ────────────────────────────────────────────────────────────────────
+export { calcSize, sizeChanged } from "./layout/sizeCalculator";
+export type { SizeResult }       from "./layout/sizeCalculator";
+export { toGlobalRow, isInBand, textCursorPos, charDisplayWidth } from "./layout/cursorMath";
+export type { CursorPos }        from "./layout/cursorMath";
+
+// ── Sanitize ──────────────────────────────────────────────────────────────────
+export { sanitizeTerminalOutput } from "./sanitize/terminalSanitizer";

terminal/packages/terminal-core/src/input/IInputSource.ts

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+/**
+ * IInputSource — 平台输入事件源抽象接口（Web DOM / 小程序 bindinput）。
+ * 所有实现在 apps/* 中，packages/terminal-core 只定义接口。
+ */
+
+export interface KeyPayload {
+  key: string;
+  code: string;
+  ctrlKey: boolean;
+  altKey: boolean;
+  shiftKey: boolean;
+  metaKey: boolean;
+  isComposing: boolean;
+}
+
+export interface InputPayload {
+  data: string;
+  isComposing: boolean;
+}
+
+export interface PastePayload {
+  text: string;
+}
+
+export interface CompositionPayload {
+  data: string;
+}
+
+export type InputEventMap = {
+  key:              KeyPayload;
+  input:            InputPayload;
+  paste:            PastePayload;
+  compositionstart: CompositionPayload;
+  compositionend:   CompositionPayload;
+};
+
+export interface IInputSource {
+  on<K extends keyof InputEventMap>(
+    event: K,
+    cb: (payload: InputEventMap[K]) => void
+  ): () => void;
+}

terminal/packages/terminal-core/src/input/imeController.ts

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+/**
+ * ImeController — IME 输入法状态机（纯逻辑，零 DOM 事件依赖）。
+ *
+ * 状态：
+ *   idle → composing（compositionstart）
+ *   composing → commit_pending（compositionend）
+ *   commit_pending → idle（提交完成或超时）
+ *
+ * 平台层（Web/小程序）负责订阅 compositionstart/end 后调用此 controller 的方法。
+ */
+
+export type ImeState = "idle" | "composing" | "commit_pending";
+
+export class ImeController {
+  private _state: ImeState = "idle";
+  /** 当前组合字符串 */
+  private _composingData = "";
+  /** 防止 compositionend 后对应的 input 事件重复提交的保护窗口（ms） */
+  private _commitGuardUntil = 0;
+  /** 超时守卫 timer（无 DOM API — 由平台层通过注入的 setTimeoutFn 驱动） */
+  private _guardTimer: ReturnType<typeof setTimeout> | null = null;
+
+  constructor(
+    private readonly setTimeoutFn: (fn: () => void, ms: number) => ReturnType<typeof setTimeout>,
+    private readonly clearTimeoutFn: (id: ReturnType<typeof setTimeout>) => void,
+    /** 超时自动复位（ms），默认 2000 */
+    private readonly timeoutMs = 2000
+  ) {}
+
+  get state(): ImeState { return this._state; }
+  get composingData(): string { return this._composingData; }
+  get isComposing(): boolean { return this._state !== "idle"; }
+
+  onCompositionStart(data: string): void {
+    this._clearGuard();
+    this._state = "composing";
+    this._composingData = data;
+    // 安全超时：若 compositionend 迟迟不来，自动复位
+    this._guardTimer = this.setTimeoutFn(() => {
+      if (this._state !== "idle") {
+        this._state = "idle";
+        this._composingData = "";
+      }
+    }, this.timeoutMs);
+  }
+
+  onCompositionEnd(data: string): string {
+    this._clearGuard();
+    this._state = "commit_pending";
+    this._composingData = data;
+    // 设置提交保护窗口（防 input 事件重复触发）
+    this._commitGuardUntil = Date.now() + 50;
+    const committed = data;
+    this._state = "idle";
+    this._composingData = "";
+    return committed;
+  }
+
+  /**
+   * 判断当前 input 事件是否应被 IME 消耗（不应单独发送给 Transport）。
+   */
+  shouldConsumeInputEvent(): boolean {
+    if (this._state === "composing") return true;
+    if (Date.now() < this._commitGuardUntil) return true;
+    return false;
+  }
+
+  reset(): void {
+    this._clearGuard();
+    this._state = "idle";
+    this._composingData = "";
+    this._commitGuardUntil = 0;
+  }
+
+  private _clearGuard(): void {
+    if (this._guardTimer !== null) {
+      this.clearTimeoutFn(this._guardTimer);
+      this._guardTimer = null;
+    }
+  }
+}

terminal/packages/terminal-core/src/input/inputBridge.test.ts

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+import { describe, expect, it } from "vitest";
+import { InputBridge } from "./inputBridge";
+
+describe("InputBridge.mapPaste", () => {
+  it("统一换行为 LF，避免将多行粘贴转换为 CR", () => {
+    const bridge = new InputBridge({ bracketedPaste: false });
+    const input = "line1\r\nline2\nline3\rline4";
+    expect(bridge.mapPaste(input)).toBe("line1\nline2\nline3\nline4");
+  });
+
+  it("开启 bracketed paste 时包裹 ESC[200~/ESC[201~", () => {
+    const bridge = new InputBridge({ bracketedPaste: true });
+    expect(bridge.mapPaste("a\r\nb")).toBe("\x1b[200~a\nb\x1b[201~");
+  });
+});

terminal/packages/terminal-core/src/input/inputBridge.ts

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+/**
+ * InputBridge — 键序列映射纯逻辑（零 DOM 事件依赖）。
+ *
+ * 负责将逻辑按键/文本映射为发送给 Transport 的 VT 字节串。
+ * 对齐 xterm.js@5.3.0 src/common/input/Keyboard.ts 行为。
+ */
+
+/** 应用光标键模式（DECCKM ?1h 激活时使用 SS3 序列） */
+export type CursorKeyMode = "normal" | "application";
+/** bracketed paste 模式 */
+export type BracketedPasteMode = boolean;
+
+export interface InputBridgeOptions {
+  cursorKeyMode?: CursorKeyMode;
+  bracketedPaste?: BracketedPasteMode;
+}
+
+export class InputBridge {
+  private cursorKeyMode: CursorKeyMode;
+  private bracketedPaste: BracketedPasteMode;
+
+  constructor(opts: InputBridgeOptions = {}) {
+    this.cursorKeyMode  = opts.cursorKeyMode  ?? "normal";
+    this.bracketedPaste = opts.bracketedPaste ?? false;
+  }
+
+  setCursorKeyMode(mode: CursorKeyMode): void  { this.cursorKeyMode  = mode; }
+  setBracketedPaste(enabled: boolean):    void  { this.bracketedPaste = enabled; }
+
+  /**
+   * 将 KeyboardEvent 语义映射为 VT 字节串。
+   * 返回 null 表示该按键不产生终端输入（如单纯 modifier key）。
+   */
+  mapKey(
+    key: string,
+    code: string,
+    ctrlKey: boolean,
+    altKey: boolean,
+    shiftKey: boolean,
+    metaKey: boolean
+  ): string | null {
+    // --- ASCII 控制字符 ---
+    if (ctrlKey && !altKey && !metaKey) {
+      const ctrl = mapCtrlKey(key, code, shiftKey);
+      if (ctrl !== null) return ctrl;
+    }
+
+    // --- 功能键 ---
+    const fn = mapFunctionKey(key, code, shiftKey, ctrlKey, altKey, this.cursorKeyMode);
+    if (fn !== null) return fn;
+
+    // --- Alt/Meta 前缀 ---
+    if ((altKey || metaKey) && key.length === 1) {
+      return `\x1b${key}`;
+    }
+
+    // --- 普通可打印字符 ---
+    if (key.length > 0 && !key.startsWith("Dead") && key !== "Unidentified") {
+      // 过滤掉单纯的 modifier key 名称
+      if (MODIFIER_KEY_NAMES.has(key)) return null;
+      return key;
+    }
+
+    return null;
+  }
+
+  /**
+   * 将粘贴文本处理为终端输入字节串：
+   * - 行结束统一归一为 LF（避免多行粘贴被当作多次回车）
+   * - bracketed paste 模式下用 ESC[200~ / ESC[201~ 包裹
+   */
+  mapPaste(text: string): string {
+    // 统一处理 CRLF / CR / LF，确保多平台粘贴行为一致。
+    const normalized = text.replace(/\r\n/g, "\n").replace(/\r/g, "\n");
+    if (this.bracketedPaste) {
+      return `\x1b[200~${normalized}\x1b[201~`;
+    }
+    return normalized;
+  }
+}
+
+// ── 内部工具 ──────────────────────────────────────────────────────────────────
+
+const MODIFIER_KEY_NAMES = new Set([
+  "Control", "Shift", "Alt", "Meta",
+  "CapsLock", "NumLock", "ScrollLock",
+  "OS", "Win",
+]);
+
+function mapCtrlKey(key: string, _code: string, shiftKey: boolean): string | null {
+  // CTRL + A-Z → 0x01-0x1A
+  if (key.length === 1) {
+    const upper = key.toUpperCase();
+    const cp = upper.charCodeAt(0);
+    if (cp >= 65 && cp <= 90) {
+      return String.fromCharCode(cp - 64);
+    }
+  }
+  // 特殊组合
+  switch (key) {
+    case "@": return "\x00";
+    case "[": return "\x1b";
+    case "\\": return "\x1c";
+    case "]": return "\x1d";
+    case "^": return "\x1e";
+    case "_": return "\x1f";
+    case " ": return "\x00";
+    case "Enter": return shiftKey ? "\n" : "\r";
+    case "Backspace": return "\x08";
+    default: return null;
+  }
+}
+
+function mapFunctionKey(
+  key: string,
+  _code: string,
+  shiftKey: boolean,
+  ctrlKey: boolean,
+  _altKey: boolean,
+  cursorKeyMode: CursorKeyMode
+): string | null {
+  const app = cursorKeyMode === "application";
+
+  switch (key) {
+    // --- 光标键 ---
+    case "ArrowUp":    return modifyArrow(app ? "\x1bOA" : "\x1b[A", shiftKey, ctrlKey);
+    case "ArrowDown":  return modifyArrow(app ? "\x1bOB" : "\x1b[B", shiftKey, ctrlKey);
+    case "ArrowRight": return modifyArrow(app ? "\x1bOC" : "\x1b[C", shiftKey, ctrlKey);
+    case "ArrowLeft":  return modifyArrow(app ? "\x1bOD" : "\x1b[D", shiftKey, ctrlKey);
+
+    // --- Enter / Backspace / Tab ---
+    case "Enter":     return "\r";
+    case "Backspace": return ctrlKey ? "\x08" : "\x7f";
+    case "Tab":       return shiftKey ? "\x1b[Z" : "\t";
+    case "Escape":    return "\x1b";
+    case "Delete":    return "\x1b[3~";
+    case "Insert":    return "\x1b[2~";
+
+    // --- Home / End ---
+    case "Home": return ctrlKey ? "\x1b[1;5H" : app ? "\x1bOH" : "\x1b[H";
+    case "End":  return ctrlKey ? "\x1b[1;5F" : app ? "\x1bOF" : "\x1b[F";
+
+    // --- Page Up / Page Down ---
+    case "PageUp":   return shiftKey ? "\x1b[5;2~" : "\x1b[5~";
+    case "PageDown": return shiftKey ? "\x1b[6;2~" : "\x1b[6~";
+
+    // --- F1-F12 ---
+    case "F1":  return "\x1bOP";
+    case "F2":  return "\x1bOQ";
+    case "F3":  return "\x1bOR";
+    case "F4":  return "\x1bOS";
+    case "F5":  return "\x1b[15~";
+    case "F6":  return "\x1b[17~";
+    case "F7":  return "\x1b[18~";
+    case "F8":  return "\x1b[19~";
+    case "F9":  return "\x1b[20~";
+    case "F10": return "\x1b[21~";
+    case "F11": return "\x1b[23~";
+    case "F12": return "\x1b[24~";
+
+    default: return null;
+  }
+}
+
+function modifyArrow(base: string, shiftKey: boolean, ctrlKey: boolean): string {
+  if (ctrlKey && shiftKey) {
+    // replace final letter with modifier param
+    return base.slice(0, -1) + ";6" + base.slice(-1);
+  }
+  if (ctrlKey)  return base.slice(0, -1) + ";5" + base.slice(-1);
+  if (shiftKey) return base.slice(0, -1) + ";2" + base.slice(-1);
+  return base;
+}

terminal/packages/terminal-core/src/layout/IMeasureAdapter.ts

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+/**
+ * IMeasureAdapter — 平台测量接口（字符/容器尺寸获取）。
+ * Web 由 ResizeObserver + Canvas 实现；小程序由 wx.createSelectorQuery 实现。
+ */
+export interface IMeasureAdapter {
+  /** 测量单个等宽字符宽/高（像素）*/
+  measureChar(): { widthPx: number; heightPx: number };
+
+  /** 测量终端容器内部可用宽/高（已去除 padding，像素）*/
+  measureContainer(): { widthPx: number; heightPx: number };
+
+  /** 订阅容器尺寸变化；返回取消订阅函数 */
+  onResize(cb: () => void): () => void;
+}

terminal/packages/terminal-core/src/layout/cursorMath.ts

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+/**
+ * cursorMath — 光标坐标纯算法工具。
+ * 零 DOM 依赖。区分"终端光标"（VT core 语义）与"输入光标"（输入框 selectionStart）。
+ */
+
+export interface CursorPos { row: number; col: number; }
+
+/** 将终端光标视口坐标转为全局行号 */
+export function toGlobalRow(baseY: number, cursorY: number): number {
+  return baseY + cursorY;
+}
+
+/**
+ * 判断触摸行是否在光标激活带内。
+ * activationRadius 建议 2 行。
+ */
+export function isInBand(touchRow: number, cursorGlobalRow: number, activationRadius = 2): boolean {
+  return Math.abs(touchRow - cursorGlobalRow) <= activationRadius;
+}
+
+/**
+ * 从 textarea 文本推导输入框光标位置（(row, col) 坐标，0-based）。
+ * 纯函数，O(n) 扫描文本。
+ */
+export function textCursorPos(
+  text: string,
+  selectionStart: number,
+  cols: number
+): CursorPos {
+  let row = 0;
+  let col = 0;
+  for (let i = 0; i < selectionStart && i < text.length; i++) {
+    const ch = text[i] ?? "";
+    if (ch === "\n") {
+      row++;
+      col = 0;
+    } else {
+      const w = charDisplayWidth(ch);
+      col += w;
+      if (col >= cols) {
+        // 自动折行
+        row += Math.floor(col / cols);
+        col  = col % cols;
+      }
+    }
+  }
+  return { row, col };
+}
+
+/**
+ * 字符显示宽度（ASCII=1, CJK/全角=2, 控制字符=0）。
+ * 使用简化的 East Asian Width 判断；完整版可插入 unicode-east-asian-width 库。
+ */
+export function charDisplayWidth(ch: string): 0 | 1 | 2 {
+  if (!ch) return 0;
+  const cp = ch.codePointAt(0) ?? 0;
+  if (cp < 0x20 || (cp >= 0x7f && cp < 0xa0)) return 0; // 控制字符
+  if (isWide(cp)) return 2;
+  return 1;
+}
+
+function isWide(cp: number): boolean {
+  // GB2312/CJK 基本覆盖范围
+  if (cp >= 0x1100 && cp <= 0x115F) return true;  // Hangul Jamo
+  if (cp === 0x2329 || cp === 0x232A) return true;
+  if (cp >= 0x2E80 && cp <= 0x303E) return true;  // CJK Radicals
+  if (cp >= 0x3040 && cp <= 0x33FF) return true;  // Japanese
+  if (cp >= 0x3400 && cp <= 0x4DBF) return true;  // CJK Ext A
+  if (cp >= 0x4E00 && cp <= 0x9FFF) return true;  // CJK Unified
+  if (cp >= 0xA000 && cp <= 0xA4CF) return true;  // Yi
+  if (cp >= 0xAC00 && cp <= 0xD7AF) return true;  // Hangul Syllables
+  if (cp >= 0xF900 && cp <= 0xFAFF) return true;  // CJK Compatibility
+  if (cp >= 0xFE10 && cp <= 0xFE19) return true;  // Vertical forms
+  if (cp >= 0xFE30 && cp <= 0xFE6F) return true;  // CJK Compatibility Small
+  if (cp >= 0xFF00 && cp <= 0xFF60) return true;  // Fullwidth
+  if (cp >= 0xFFE0 && cp <= 0xFFE6) return true;
+  if (cp >= 0x1F300 && cp <= 0x1F9FF) return true; // Emoji
+  if (cp >= 0x20000 && cp <= 0x2FFFD) return true; // CJK Ext B-F
+  return false;
+}

terminal/packages/terminal-core/src/layout/sizeCalculator.ts

@@ -0,0 +1,27 @@
+/**
+ * sizeCalculator — 纯算法：px → cols/rows。
+ * 零 DOM 依赖，所有 DOM 测量由平台的 IMeasureAdapter 注入。
+ */
+
+export interface SizeResult {
+  cols: number;
+  rows: number;
+}
+
+export function calcSize(
+  containerWidthPx: number,
+  containerHeightPx: number,
+  charWidthPx:  number,
+  lineHeightPx: number
+): SizeResult {
+  const cols = Math.max(20, Math.floor(containerWidthPx  / Math.max(1, charWidthPx)));
+  const rows = Math.max(8,  Math.floor(containerHeightPx / Math.max(1, lineHeightPx)));
+  return { cols, rows };
+}
+
+/**
+ * 判断尺寸变化是否超过阈值（>= 1 col 或 >= 1 row），避免抖动触发频繁 resize。
+ */
+export function sizeChanged(a: SizeResult, b: SizeResult): boolean {
+  return Math.abs(a.cols - b.cols) + Math.abs(a.rows - b.rows) >= 1;
+}

terminal/packages/terminal-core/src/renderer/outputBuffer.ts

@@ -0,0 +1,75 @@
+/**
+ * OutputBuffer — 终端输出缓冲区。
+ * 双阈值（条目数 + 字节数）裁剪，保证低端设备不 OOM。
+ */
+
+export interface OutputBufferOptions {
+  maxEntries?: number;  // 默认 500
+  maxBytes?: number;    // 默认 512 * 1024 (512KB)
+}
+
+export class OutputBuffer {
+  private entries: string[] = [];
+  private totalBytes = 0;
+  private readonly maxEntries: number;
+  private readonly maxBytes: number;
+
+  /** 缓冲区修订号：每次 push 后递增，供外部脏检测 */
+  public revision = 0;
+
+  constructor(opts: OutputBufferOptions = {}) {
+    this.maxEntries = Math.max(200, opts.maxEntries ?? 500);
+    this.maxBytes   = Math.max(65536, opts.maxBytes ?? 512 * 1024);
+  }
+
+  push(data: string): void {
+    if (data.length === 0) return;
+    this.entries.push(data);
+    this.totalBytes += data.length * 2; // UTF-16 字符 ≈ 2 字节估算
+
+    this.trim();
+    this.revision++;
+  }
+
+  /** 获取全部条目（用于重放） */
+  getAll(): readonly string[] {
+    return this.entries;
+  }
+
+  /** 获取从指定修订号之后新增的条目（增量重放辅助） */
+  getSince(revision: number): string {
+    // 简化实现：revision 不足时全量重放
+    if (revision <= 0) return this.entries.join("");
+    // 粗略计算需要从后面取多少条目
+    // 这里保守地返回全量；如需精确增量可增加 revision→index 映射表
+    return this.entries.join("");
+  }
+
+  clear(): void {
+    this.entries = [];
+    this.totalBytes = 0;
+    this.revision++;
+  }
+
+  get size(): number {
+    return this.entries.length;
+  }
+
+  get bytes(): number {
+    return this.totalBytes;
+  }
+
+  private trim(): void {
+    // 先按条目裁剪
+    while (this.entries.length > this.maxEntries) {
+      const removed = this.entries.shift();
+      if (removed !== undefined) this.totalBytes -= removed.length * 2;
+    }
+    // 再按字节裁剪
+    while (this.totalBytes > this.maxBytes && this.entries.length > 1) {
+      const removed = this.entries.shift();
+      if (removed !== undefined) this.totalBytes -= removed.length * 2;
+    }
+    if (this.totalBytes < 0) this.totalBytes = 0;
+  }
+}

terminal/packages/terminal-core/src/renderer/rendererAdapter.ts

@@ -0,0 +1,28 @@
+import type { TerminalSnapshot } from "../types";
+
+/**
+ * RendererAdapter — 渲染层抽象接口（每个平台各自实现）。
+ * 渲染器只读 snapshot，禁止回写 TerminalCore 内部状态。
+ */
+export interface RendererAdapter {
+  /**
+   * 挂载到平台容器。
+   * Web: container 为 HTMLElement；
+   * 小程序: 由 terminal-core-view 组件自行管理，传 null。
+   */
+  mount(container: unknown): void;
+
+  /** 增量写入 VT 字节流（内部转发给 TerminalCore.write，触发重新渲染） */
+  write(data: string): void;
+
+  /** 通知渲染器终端尺寸已变化 */
+  resize(cols: number, rows: number): void;
+
+  /**
+   * 全量重放快照（模式切换时调用，将渲染器状态同步到最新 snapshot）。
+   */
+  applySnapshot(snapshot: TerminalSnapshot): void;
+
+  /** 销毁渲染器，释放 DOM/Canvas/定时器等资源 */
+  dispose(): void;
+}

terminal/packages/terminal-core/src/sanitize/terminalSanitizer.ts

@@ -0,0 +1,22 @@
+/**
+ * TerminalSanitizer — 过滤 stdout/stderr 中会干扰渲染的噪音序列。
+ *
+ * 目前仅过滤同步更新模式（DECSM ?2026 = DECRQM-like sync-update），
+ * 以及其他已知会在某些 SSH 服务端发送但 terminal-core 不处理的序列。
+ * 不得过滤正常 CSI/OSC 序列，否则会破坏 TUI 程序显示。
+ */
+
+/** 同步更新开始/结束序列（DEC private: ?2026h / ?2026l） */
+const SYNC_UPDATE_RE = /\x1b\[\?2026[hl]/g;
+/** Bracketed paste 开关（部分链路丢失 ESC 后会残留 '?2004h/l' 文本） */
+const BRACKETED_PASTE_RE = /(?:\x1b\[)?\?2004[hl]/g;
+
+/** XTPUSHCOLORS / XTPOPCOLORS（Ps=10/11）—— terminal-core 不处理，安全丢弃 */
+const XTPUSH_POP_COLORS_RE = /\x1b\[(?:10|11)m/g;
+
+export function sanitizeTerminalOutput(data: string): string {
+  return data
+    .replace(SYNC_UPDATE_RE, "")
+    .replace(BRACKETED_PASTE_RE, "")
+    .replace(XTPUSH_POP_COLORS_RE, "");
+}

terminal/packages/terminal-core/src/session/sessionMachine.ts

@@ -0,0 +1,61 @@
+import type { SessionState } from "../types";
+
+/** 合法状态迁移表 */
+const TRANSITIONS: Record<SessionState, SessionState[]> = {
+  idle:         ["connecting", "disconnected"],
+  connecting:   ["auth_pending", "error", "disconnected"],
+  auth_pending: ["connected", "error", "disconnected"],
+  connected:    ["reconnecting", "disconnected", "error"],
+  reconnecting: ["connected", "error", "disconnected"],
+  disconnected: ["connecting", "idle"],
+  error:        ["connecting", "disconnected"],
+};
+
+export function canTransition(from: SessionState, to: SessionState): boolean {
+  return (TRANSITIONS[from] ?? []).includes(to);
+}
+
+export function assertTransition(from: SessionState, to: SessionState): void {
+  if (!canTransition(from, to)) {
+    throw new Error(`非法状态跳转: ${from} → ${to}`);
+  }
+}
+
+/**
+ * SessionMachine — 会话生命周期状态机。
+ * 纯状态逻辑，无任何副作用，零 DOM 依赖。
+ */
+export class SessionMachine {
+  private _state: SessionState = "idle";
+  private listeners = new Set<(state: SessionState) => void>();
+
+  get state(): SessionState {
+    return this._state;
+  }
+
+  transition(to: SessionState): void {
+    assertTransition(this._state, to);
+    this._state = to;
+    for (const fn of this.listeners) {
+      fn(this._state);
+    }
+  }
+
+  tryTransition(to: SessionState): boolean {
+    if (!canTransition(this._state, to)) return false;
+    this.transition(to);
+    return true;
+  }
+
+  onChange(fn: (state: SessionState) => void): () => void {
+    this.listeners.add(fn);
+    return () => this.listeners.delete(fn);
+  }
+
+  reset(): void {
+    this._state = "idle";
+    for (const fn of this.listeners) {
+      fn(this._state);
+    }
+  }
+}

terminal/packages/terminal-core/src/transport/terminalTransport.ts

@@ -0,0 +1,15 @@
+import type { ConnectParams, FrameMeta, SessionState, TransportEventListener } from "../types";
+
+/**
+ * TerminalTransport — 网络层抽象接口（三端各自实现）。
+ * 此接口在 packages/terminal-core 定义；apps/web 现有实现兼容此签名。
+ */
+export interface TerminalTransport {
+  connect(params: ConnectParams): Promise<void>;
+  send(data: string, meta?: FrameMeta): Promise<void>;
+  resize(cols: number, rows: number): Promise<void>;
+  disconnect(reason?: string): Promise<void>;
+  /** 返回取消订阅函数 */
+  on(listener: TransportEventListener): () => void;
+  getState(): SessionState;
+}

terminal/packages/terminal-core/src/types.ts

@@ -0,0 +1,149 @@
+/**
+ * 所有平台共用的基础类型定义。
+ * 此文件不得引入任何 DOM/BOM API，不得依赖 @remoteconn/shared 或 apps/* 模块。
+ */
+
+// ── 会话状态 ───────────────────────────────────────────────────────────────────
+export type SessionState =
+  | "idle"
+  | "connecting"
+  | "auth_pending"
+  | "connected"
+  | "reconnecting"
+  | "disconnected"
+  | "error";
+
+// ── 连接参数 ───────────────────────────────────────────────────────────────────
+export interface ConnectParams {
+  host: string;
+  port: number;
+  username: string;
+  credential: TerminalCredential;
+  knownHostFingerprint?: string;
+  cols: number;
+  rows: number;
+  clientSessionKey?: string;
+}
+
+export type TerminalCredential =
+  | { type: "password"; password: string }
+  | { type: "privateKey"; privateKey: string; passphrase?: string }
+  | { type: "certificate"; privateKey: string; certificate: string; passphrase?: string };
+
+// ── 帧 meta（stdin 可选附加） ──────────────────────────────────────────────────
+export interface FrameMeta {
+  source?: "keyboard" | "assist" | "paste";
+  txnId?: string;
+}
+
+// ── Transport 事件 ─────────────────────────────────────────────────────────────
+export type TransportEvent =
+  | { type: "stdout";    data: string }
+  | { type: "stderr";    data: string }
+  | { type: "latency";   data: number }
+  | { type: "connected"; fingerprint?: string }
+  | { type: "disconnect"; reason: string }
+  | { type: "error";     code: string; message: string };
+
+export type TransportEventListener = (event: TransportEvent) => void;
+
+// ── 颜色值 ────────────────────────────────────────────────────────────────────
+export interface ColorValue {
+  mode: "default" | "p16" | "p256" | "rgb";
+  /** p16: 0-15；p256: 0-255；rgb: 0xRRGGBB */
+  value: number;
+}
+
+export const DEFAULT_FG: ColorValue = { mode: "default", value: 0 };
+export const DEFAULT_BG: ColorValue = { mode: "default", value: 0 };
+export const DEFAULT_COLOR: ColorValue = { mode: "default", value: 0 };
+
+// ── SGR flags（bitmask） ───────────────────────────────────────────────────────
+export const FLAG_BOLD          = 1 << 0;
+export const FLAG_DIM           = 1 << 1;
+export const FLAG_ITALIC        = 1 << 2;
+export const FLAG_UNDERLINE     = 1 << 3;
+export const FLAG_BLINK         = 1 << 4;
+export const FLAG_INVERSE       = 1 << 5;
+export const FLAG_INVISIBLE     = 1 << 6;
+export const FLAG_STRIKETHROUGH = 1 << 7;
+export const FLAG_OVERLINE      = 1 << 8;
+
+// ── 单元格 ────────────────────────────────────────────────────────────────────
+export interface TerminalCell {
+  char: string;   // 空单元格为 ' '
+  width: 1 | 2;   // CJK 宽字符占 2
+  fg: ColorValue;
+  bg: ColorValue;
+  flags: number;
+  underlineStyle: "none" | "single" | "double" | "curly" | "dotted" | "dashed";
+  underlineColor: ColorValue;
+}
+
+// ── 行 ────────────────────────────────────────────────────────────────────────
+export interface TerminalLine {
+  cells: TerminalCell[];
+  isWrapped: boolean;
+}
+
+// ── 光标状态 ──────────────────────────────────────────────────────────────────
+export interface CursorState {
+  x: number;          // 列（0-based）
+  y: number;          // 行（视口相对，0-based）
+  globalRow: number;  // baseY + y（全局行号，供触摸激活带使用）
+  visible: boolean;   // DECTCEM
+}
+
+// ── 快照（渲染器唯一输入数据结构） ─────────────────────────────────────────────
+export interface TerminalSnapshot {
+  cols: number;
+  rows: number;
+  cursor: CursorState;
+  lines: TerminalLine[];  // 长度 = rows，仅当前可视区
+  title: string;
+  revision: number;       // 每次 write() 后递增
+  isAlternateBuffer: boolean;
+}
+
+// ── 字符属性（VT 内部使用） ───────────────────────────────────────────────────
+export interface CharAttribs {
+  fg: ColorValue;
+  bg: ColorValue;
+  flags: number;
+  underlineStyle: "none" | "single" | "double" | "curly" | "dotted" | "dashed";
+  underlineColor: ColorValue;
+}
+
+export function makeDefaultAttribs(): CharAttribs {
+  return {
+    fg: { mode: "default", value: 0 },
+    bg: { mode: "default", value: 0 },
+    flags: 0,
+    underlineStyle: "none",
+    underlineColor: { mode: "default", value: 0 },
+  };
+}
+
+export function copyAttribs(a: CharAttribs): CharAttribs {
+  return {
+    fg: { ...a.fg },
+    bg: { ...a.bg },
+    flags: a.flags,
+    underlineStyle: a.underlineStyle,
+    underlineColor: { ...a.underlineColor },
+  };
+}
+
+export function makeBlankCell(attribs?: CharAttribs): TerminalCell {
+  if (!attribs) {
+    return { char: " ", width: 1, fg: DEFAULT_FG, bg: DEFAULT_BG, flags: 0, underlineStyle: "none", underlineColor: DEFAULT_COLOR };
+  }
+  return {
+    char: " ", width: 1,
+    fg: { ...attribs.fg },
+    bg: { ...attribs.bg },
+    flags: attribs.flags,
+    underlineStyle: attribs.underlineStyle,
+    underlineColor: { ...attribs.underlineColor },
+  };
+}