[1294] 修复自递归/循环宏 LaTeX 粘贴导致进程崩溃（用例 249/289/pattern_c） (#4535)

Co-authored-by: Claude <noreply@anthropic.com>

Author: da-liii

TeXmacs/tests/python/1294.py

@@ -0,0 +1,397 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""1294.py: 复现与验证 LaTeX 自递归宏粘贴崩溃的自动化测试脚本。
+
+支持用例:
+  - 1294_1.tex: 无参自递归宏 (用例 249)
+  - 1294_2.tex: 带参自递归宏 (用例 289)
+  - 1294_3.tex: 相互递归宏 (crash_pattern_c)
+
+启动命令: xmake r stem -d
+用法:
+  python3 TeXmacs/tests/python/1294.py               # 默认依序测试 1294_1.tex, 1294_2.tex, 1294_3.tex
+  python3 TeXmacs/tests/python/1294.py [path/to.tex] # 测试指定文件
+"""
+
+import os
+import sys
+import glob
+import time
+import subprocess
+import threading
+
+from Xlib import X, display, Xatom
+from Xlib.protocol import event
+from pynput.keyboard import Controller as Kbd, Key
+from pynput.mouse import Controller as Mouse, Button
+
+# 定位工程根目录
+_cur = os.path.dirname(os.path.abspath(__file__))
+while _cur and _cur != "/" and not os.path.isdir(os.path.join(_cur, "TeXmacs")):
+    _cur = os.path.dirname(_cur)
+ROOT_DIR = _cur if _cur else os.path.dirname(os.path.abspath(__file__))
+HERE = ROOT_DIR
+
+# 4K (3840x2312) 实测坐标
+POS_DOC = (960, 900)
+POS_EDIT_MENU = (220, 140)
+POS_PASTE_FROM = (227, 1008)
+POS_LATEX_ITEM = (618, 1135)
+
+DRAFT_DIRS = [
+    os.path.expanduser("~/文档/LiiiSTEM/no_name"),
+    os.path.expanduser("~/Documents/LiiiSTEM/no_name"),
+]
+
+DEFAULT_CASES = [
+    os.path.join(ROOT_DIR, "TeXmacs", "tests", "tex", "1294_1.tex"),
+    os.path.join(ROOT_DIR, "TeXmacs", "tests", "tex", "1294_2.tex"),
+    os.path.join(ROOT_DIR, "TeXmacs", "tests", "tex", "1294_3.tex"),
+]
+
+
+class X11Clipboard:
+    """X11 剪贴板持有者，在后台响应 SelectionRequest。"""
+
+    def __init__(self):
+        self.disp = display.Display()
+        self.screen = self.disp.screen()
+        self.window = self.screen.root.create_window(
+            0, 0, 1, 1, 0, self.screen.root_depth
+        )
+        self.CLIPBOARD = self.disp.intern_atom('CLIPBOARD')
+        self.PRIMARY = self.disp.intern_atom('PRIMARY')
+        self.TARGETS = self.disp.intern_atom('TARGETS')
+        self.UTF8 = self.disp.intern_atom('UTF8_STRING')
+        self.TEXT = self.disp.intern_atom('TEXT')
+        self.STRING = Xatom.STRING
+        self.text = ""
+        self.running = True
+        self.thread = threading.Thread(target=self._loop, daemon=True)
+        self.thread.start()
+
+    def set_text(self, text):
+        self.text = text
+        self.window.set_selection_owner(self.CLIPBOARD, X.CurrentTime)
+        self.window.set_selection_owner(self.PRIMARY, X.CurrentTime)
+        self.disp.flush()
+
+    def _loop(self):
+        while self.running:
+            try:
+                if self.disp.pending_events() == 0:
+                    time.sleep(0.01)
+                    continue
+                e = self.disp.next_event()
+                if e.type == X.SelectionRequest:
+                    req_win = self.disp.create_resource_object('window', e.requestor)
+                    prop = e.property
+                    if prop == X.NONE:
+                        prop = e.target
+                    if e.target == self.TARGETS:
+                        req_win.change_property(
+                            prop, Xatom.ATOM, 32,
+                            [self.TARGETS, self.UTF8, self.STRING, self.TEXT]
+                        )
+                        ev = event.SelectionNotify(
+                            time=e.time, requestor=e.requestor,
+                            selection=e.selection, target=e.target,
+                            property=prop
+                        )
+                    elif e.target in (self.UTF8, self.STRING, self.TEXT):
+                        req_win.change_property(
+                            prop, e.target, 8, self.text.encode('utf-8')
+                        )
+                        ev = event.SelectionNotify(
+                            time=e.time, requestor=e.requestor,
+                            selection=e.selection, target=e.target,
+                            property=prop
+                        )
+                    else:
+                        ev = event.SelectionNotify(
+                            time=e.time, requestor=e.requestor,
+                            selection=e.selection, target=e.target,
+                            property=X.NONE
+                        )
+                    req_win.send_event(ev)
+                    self.disp.flush()
+            except Exception:
+                pass
+
+    def stop(self):
+        self.running = False
+
+
+def clean_drafts():
+    """清理自动保存草稿，防止弹窗阻碍启动。"""
+    for d in DRAFT_DIRS:
+        if os.path.isdir(d):
+            for f in glob.glob(os.path.join(d, "draft_*.tmu")):
+                try:
+                    os.remove(f)
+                except OSError:
+                    pass
+
+
+def activate_window():
+    """激活 Mogan STEM 窗口。"""
+    js_code = (
+        'const wins = workspace.windowList ? workspace.windowList() : workspace.windows();\n'
+        'for (let i = 0; i < wins.length; i++) {\n'
+        '    const w = wins[i];\n'
+        '    const cls = (w.resourceClass || "").toLowerCase();\n'
+        '    const name = (w.resourceName || "").toLowerCase();\n'
+        '    const title = (w.caption || "");\n'
+        '    if (cls.includes("stem") || name.includes("stem") || title.includes("Mogan")) {\n'
+        '        workspace.activeWindow = w;\n'
+        '        if (w.activate) w.activate();\n'
+        '    }\n'
+        '}\n'
+    )
+    tmp_js = "/tmp/activate_moganstem.js"
+    with open(tmp_js, "w", encoding="utf-8") as f:
+        f.write(js_code)
+
+    try:
+        import dbus
+        bus = dbus.SessionBus()
+        kwin = bus.get_object("org.kde.KWin", "/Scripting")
+        iface = dbus.Interface(kwin, "org.kde.kwin.Scripting")
+        script_id = iface.loadScript(tmp_js)
+        script_obj = bus.get_object("org.kde.KWin", f"/Scripting/Script{script_id}")
+        script_iface = dbus.Interface(script_obj, "org.kde.kwin.Script")
+        script_iface.run()
+        iface.unloadScript(str(script_id))
+    except Exception:
+        pass
+
+    try:
+        d = display.Display()
+        root = d.screen().root
+        NET_ACTIVE_WINDOW = d.intern_atom('_NET_ACTIVE_WINDOW')
+        NET_CLIENT_LIST = d.intern_atom('_NET_CLIENT_LIST')
+        prop = root.get_full_property(NET_CLIENT_LIST, Xatom.WINDOW)
+        if prop:
+            for wid in prop.value:
+                win = d.create_resource_object('window', wid)
+                c = str(win.get_wm_class() or "").lower()
+                if "stem" in c or "mogan" in c:
+                    data = [2, X.CurrentTime, 0, 0, 0]
+                    ev = event.ClientMessage(window=wid, client_type=NET_ACTIVE_WINDOW, data=(32, data))
+                    root.send_event(ev, event_mask=X.SubstructureRedirectMask | X.SubstructureNotifyMask)
+                    d.flush()
+                    break
+    except Exception:
+        pass
+
+
+def is_window_ready():
+    try:
+        out = subprocess.check_output(
+            ["xprop", "-root", "_NET_CLIENT_LIST"],
+            text=True, stderr=subprocess.DEVNULL
+        )
+        for wid in out.split("#")[-1].replace(",", " ").split():
+            c = subprocess.check_output(
+                ["xprop", "-id", wid, "WM_CLASS"],
+                text=True, stderr=subprocess.DEVNULL
+            )
+            if "moganstem" in c.lower() or "liiistem" in c.lower():
+                return True
+    except Exception:
+        pass
+    return False
+
+
+class TestRunner:
+    def __init__(self):
+        self.proc = None
+        self.clip = X11Clipboard()
+        self.kbd = Kbd()
+        self.mouse = Mouse()
+
+    def start_app(self):
+        self.stop_app()
+        clean_drafts()
+        subprocess.run(["pkill", "-9", "-f", "moganstem"], stderr=subprocess.DEVNULL)
+
+        print("[1294] Starting Mogan STEM via: xmake r stem -d")
+        self.proc = subprocess.Popen(["xmake", "r", "stem", "-d"], cwd=HERE)
+
+        t0 = time.time()
+        while time.time() - t0 < 15:
+            if is_window_ready():
+                break
+            time.sleep(0.3)
+
+        time.sleep(1.0)
+        activate_window()
+        time.sleep(0.5)
+
+    def is_alive(self):
+        if self.proc is None:
+            return False
+        return self.proc.poll() is None
+
+    def stop_app(self):
+        if self.proc is not None:
+            if self.proc.poll() is None:
+                self.proc.terminate()
+                try:
+                    self.proc.wait(timeout=2)
+                except Exception:
+                    self.proc.kill()
+            self.proc = None
+        subprocess.run(["pkill", "-9", "-f", "moganstem"], stderr=subprocess.DEVNULL)
+        clean_drafts()
+
+    def run_case(self, case_name, tex_content):
+        """运行单个用例的粘贴测试。"""
+        if not self.is_alive():
+            self.start_app()
+
+        print(f"\n--- Running: {case_name} ---")
+        print(f"Content: {tex_content.strip()}")
+
+        # 新建标签页并聚焦
+        activate_window()
+        time.sleep(0.3)
+        self.kbd.press(Key.ctrl)
+        self.kbd.tap('t')
+        self.kbd.release(Key.ctrl)
+        time.sleep(0.8)
+
+        self.mouse.position = POS_DOC
+        time.sleep(0.2)
+        self.mouse.click(Button.left)
+        time.sleep(0.4)
+
+        # 设置剪贴板并粘贴
+        self.clip.set_text(tex_content)
+        activate_window()
+        time.sleep(0.2)
+
+        print("  -> Clicking: Edit -> Paste from -> LaTeX")
+        self.mouse.position = POS_EDIT_MENU
+        time.sleep(0.3)
+        self.mouse.click(Button.left)
+        time.sleep(0.4)
+
+        self.mouse.position = POS_PASTE_FROM
+        time.sleep(0.4)
+
+        self.mouse.position = POS_LATEX_ITEM
+        time.sleep(0.3)
+        self.mouse.click(Button.left)
+
+        # 检查粘贴阶段是否崩溃
+        t_wait = 0.0
+        crashed = False
+        while t_wait < 3.5:
+            time.sleep(0.2)
+            t_wait += 0.2
+            if not self.is_alive():
+                crashed = True
+                print("  [!] Crashed during paste!")
+                break
+
+        # 处理可能的错误弹窗并关闭
+        if not crashed:
+            time.sleep(0.5)
+            print("  -> Closing possible error popup (Enter)...")
+            self.kbd.tap(Key.enter)
+            time.sleep(0.5)
+            if not self.is_alive():
+                crashed = True
+                print("  [!] Crashed after dismissing popup!")
+
+        # 关闭弹窗后，继续编辑测试（防止损坏状态下继续操作引起崩溃）
+        if not crashed:
+            print("  -> Testing continue editing after paste...")
+            activate_window()
+            time.sleep(0.3)
+            self.mouse.position = POS_DOC
+            time.sleep(0.2)
+            self.mouse.click(Button.left)
+            time.sleep(0.3)
+
+            # 键入文本
+            self.kbd.type("testing edit after paste ")
+            time.sleep(0.3)
+            # 回车触发分段排版
+            self.kbd.tap(Key.enter)
+            time.sleep(0.3)
+            # 键入更多内容
+            self.kbd.type("continue typing 12345")
+            time.sleep(0.3)
+            # 回车
+            self.kbd.tap(Key.enter)
+            time.sleep(0.3)
+            # 退格删除
+            for _ in range(8):
+                self.kbd.tap(Key.backspace)
+                time.sleep(0.05)
+            # 光标移动
+            self.kbd.tap(Key.up)
+            time.sleep(0.1)
+            self.kbd.tap(Key.down)
+            time.sleep(0.1)
+            self.kbd.type(" finished")
+            time.sleep(0.5)
+
+            # 等待排版和可能的后台处理
+            t_wait = 0.0
+            while t_wait < 2.5:
+                time.sleep(0.2)
+                t_wait += 0.2
+                if not self.is_alive():
+                    crashed = True
+                    print("  [!] Crashed during continue editing!")
+                    break
+
+        status = "CRASH" if crashed else "PASS"
+        print(f"  Result for {case_name}: {status}")
+        return not crashed
+
+    def close(self):
+        self.clip.stop()
+        self.stop_app()
+
+
+def main():
+    if len(sys.argv) > 1:
+        test_files = sys.argv[1:]
+    else:
+        test_files = [f for f in DEFAULT_CASES if os.path.exists(f)]
+        if not test_files:
+            print("[!] Default test cases not found in TeXmacs/tests/tex/!")
+            sys.exit(1)
+
+    runner = TestRunner()
+    results = {}
+
+    try:
+        for tf in test_files:
+            name = os.path.basename(tf)
+            with open(tf, "r", encoding="utf-8") as f:
+                content = f.read().strip()
+            passed = runner.run_case(name, content)
+            results[name] = "PASS" if passed else "CRASH"
+
+        print("\n" + "=" * 50)
+        print("TEST SUMMARY:")
+        print("=" * 50)
+        all_passed = True
+        for name, status in results.items():
+            print(f"  {name:20s}: {status}")
+            if status != "PASS":
+                all_passed = False
+
+        sys.exit(0 if all_passed else 1)
+
+    finally:
+        runner.close()
+
+
+if __name__ == "__main__":
+    main()

TeXmacs/tests/tex/1294_1.tex

@@ -0,0 +1 @@
+\def\crashMacro24{\crashMacro24} \crashMacro24 % 自递归宏定义，触发粘贴 LaTeX 崩溃 (用例 249, devel/1294.md)