JavaZeroo · Nov 1, 2026 · Nov 1, 2026 · Nov 1, 2026
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -132,6 +132,10 @@ add_executable(pending_wrap_test experiments/core/pending_wrap_test.cpp)
 target_link_libraries(pending_wrap_test PRIVATE termforge_core)
 termforge_warnings(pending_wrap_test)
 
+add_executable(widechar_1049_test experiments/core/widechar_1049_test.cpp)
+target_link_libraries(widechar_1049_test PRIVATE termforge_core)
+termforge_warnings(widechar_1049_test)
+
 add_executable(view_mapping_test experiments/core/view_mapping_test.cpp)
 target_link_libraries(view_mapping_test PRIVATE termforge_core)
 termforge_warnings(view_mapping_test)
@@ -357,6 +361,8 @@ add_test(NAME view_mapping_core COMMAND view_mapping_test)
 add_test(NAME private_mode_core COMMAND private_mode_test)
 add_test(NAME decom_origin_core COMMAND decom_origin_test)
 add_test(NAME pending_wrap_core COMMAND pending_wrap_test)
+add_test(NAME widechar_1049_core COMMAND widechar_1049_test)
+  set_tests_properties(widechar_1049_core PROPERTIES TIMEOUT 10)
 add_test(NAME reply_core COMMAND reply_test)
 add_test(NAME edit_csi_core COMMAND edit_csi_test)
   set_tests_properties(decawm_mode_core PROPERTIES TIMEOUT 10)

diff --git a/docs/EVIDENCE.md b/docs/EVIDENCE.md
@@ -15,6 +15,7 @@
 | 自主 C++ 主屏 ASCII DECAWM | [有限合同与红绿](../experiments/core/results/2026-10-29-cpp-decawm/README.md)、[固定验证身份](../experiments/core/results/2026-10-29-cpp-decawm/validation.json)：抽取原版14–18阶段79B，strict/recovery各235个字面前缀分块用例；初次定向8/9的缺构建依赖失败、补建后的core单项31测试通过分列。跨1049/宽字/resize、origin/margin、GUI/固定ConPTY运输和完整TUI均不由本项验收 |
 | 自主 C++ DECOM origin 与 margin/1049（#27 切片） | [有限合同与验证](../experiments/core/results/2026-11-01-decom-origin/README.md)、[固定验证身份](../experiments/core/results/2026-11-01-decom-origin/validation.json)：原版25阶段334B完整回放、逐阶段DSR核对；strict/recovery各整体/逐字节/435二段分割一致；13项核心CTest与66项Python核心测试通过、0跳过。每屏origin位、返回margin下界、origin×末列wrap与完整grid均不由此项验收 |
 | 自主 C++ pending-wrap：延迟换行边缘跨 1049/DECAWM/DECOM（#27 切片） | [有限合同与验证](../experiments/core/results/2026-11-02-pending-wrap/README.md)、[固定验证身份](../experiments/core/results/2026-11-02-pending-wrap/validation.json)：以 #123 备用屏阶段 8–9 与 #151 阶段 14–18 为字面 oracle，锁末列延迟换行在 1049 进出/重复切换下的保存恢复、DECAWM开/关 × DECOM开/关的 wrap 决策/光标落点/下一可打印字符起始；strict/recovery 各 7 阶段累计回放、逐字节与 151 个二段分割一致，异常序列恢复不串扰。origin×末列 wrap 为组合模型检查（原版未观测）；16 项核心 CTest 与 66 项 Python 核心测试通过、0 跳过；实现与基线无冲突（仅测试自断行号一处修正）。宽字/结合字跨 1049、完整 grid/样式与固定 ConPTY 运输均不由此项验收 |
+| 自主 C++ 宽字/结合字跨 1049 与 DECAWM 关闭换行（#27 切片） | [有限合同与验证](../experiments/core/results/2026-11-02-widechar-1049/README.md)、[固定验证身份](../experiments/core/results/2026-11-02-widechar-1049/validation.json)：以现有实现为基线（无新 WindTerm 原版运行），锁末列宽字不足格预换行在 DECAWM 开/关下一致、宽字 lead/trail 经 1049 进出不分裂且隐藏/恢复、结合字聚类跨 1049 保持并可续接、原文（宽字不重复、结合字聚合）复制一致、resize 1 列/1 行与 1049 交叉的宽字边界、逐字节与 38 个二段分割一致、异常序列与 malformed UTF-8 恢复；strict/recovery 各 11 项组合检查 23/23、17 项核心 CTest 与 66 项 Python 核心测试通过、0 跳过；实现与基线无冲突（仅测试自身 strict/recovery 区分两处修正）。宽字×DECAWM 关、宽字/结合字×1049 原版均未观测，计为组合模型检查；完整 grid/逐格样式与固定 ConPTY 运输不由此项验收 |
 | 自主 C++ 行结构发布与精确身份查询 | [首片合同与固定夹具](../experiments/core/results/2026-10-29-order-query/README.md)、[验证身份](../experiments/core/results/2026-10-29-order-query/validation.json)：`[1,3,4,5,7,6]` 的精确 rank（7→4、6→5、2 缺失）、文档序比较与强制 Find 导航、结构 revision 边界、发布拒绝与光标夹取；筛选的 8 项核心 CTest 与本地候选 `candidate_core` 通过，首个推送版本的 CI 红（回放保留历史仍为上一帧宽度）与按物理行策略适配后的绿分列，完整默认 Release 构建 exit0。未封住公开 lines/history，运行中跨重排的增量 Find、区域 LF、Qt/固定 ConPTY 与性能均未验收 |
 | 自主 C++ 限定 1049 协议 | [固定结果](../experiments/core/results/2026-10-29-cpp-1049/README.md)、[验证身份](../experiments/core/results/2026-10-29-cpp-1049/validation.json)：文字/光标/颜色及 pending-wrap、重复进入与读者失效；55项中Qt1项分列，13条内部skip及旧负例判据失败保留。未验收非颜色属性/全网格背景、其他模式、真实TUI/IME/DPI、呈现或性能 |
 | 自主 C++ 双缓冲存储与文档 epoch 基础 | [固定结果](../experiments/core/results/2026-10-29-buffer-state-r2/README.md)、[验证身份](../experiments/core/results/2026-10-29-buffer-state-r2/validation.json)：拥有状态、共享 ID、隐藏帧 resize 回滚与跨缓冲句柄失效；Qt/candidate 关闭配置的完整 50 项及 12 条内部 skip 分列。未接 private CSI，不是原版模式、Qt 产品路线或完整 #27 验收 |

diff --git a/experiments/core/results/2026-11-02-widechar-1049/README.md b/experiments/core/results/2026-11-02-widechar-1049/README.md
@@ -0,0 +1,41 @@
+# 自主 C++ 宽字/结合字跨 1049 与 DECAWM 关闭换行（#27 限定切片）
+
+自主 C++ strict/recovery 锁定宽字（CJK 双宽）与结合字序列跨 1049 备用屏切换的行为：末列宽字不足格预换行策略与 DECAWM 开/关组合、宽字 lead/trail 不分裂与隐藏/恢复、结合字聚类跨 1049 保持、原文复制一致、resize（1 列/1 行）与 1049 交叉的宽字边界、逐字节与分块喂入一致、异常序列与 malformed UTF-8 恢复。
+
+重要边界：本切片没有新增 WindTerm 原版运行。原版从未观测宽字或结合字跨 1049 的组合，因此下面所有交叉都是组合模型检查，以现有实现为基线锁定当前行为，而不是独立的字面 oracle。原版未观测的组合保持未知并记录，不猜。
+
+## 固定输入与范围
+
+[测试](../../widechar_1049_test.cpp) 通过公开 Parser 的 feed/finish/take_replies 接口锁定：
+
+- 末列宽字不足格预换行 × DECAWM：双宽字在末列只剩一格时整体预换行到下一行，DECAWM 开与关结果一致（许可位只门控延迟窄字的消费）；源行保留软续行 metadata，目标行 lead/trail 配对完整。
+- 宽字恰好填满末两格 × DECAWM：开时下一窄字标准换行，关时下一窄字覆盖 trail 并清空 lead（不分裂，不留半字）。
+- 宽字 × 1049 隐藏/恢复：进入 1049 清掉备用屏可见 pending，退出恢复主屏的宽字 lead/trail 与 pending 边，往返不分裂。
+- 结合字聚类 × 1049：主屏 base+marks 聚类跨 1049 往返保持并可续接；主屏与备用屏各自独立；1049 再进入清空备用屏（含其 pending 结合基）。
+- 宽字后的结合标落在 lead 格并跨 1049 继续聚合；原文复制（行文本）对窄 base+多结合、宽字+结合的原始 UTF-8 逐字节回环，宽字不重复、结合字聚合不回退。
+- resize 宽字边界：1 列收缩清空被裁剪的 lead（不分裂）；1049 内 resize 同步裁剪隐藏主屏宽字；1 行裁剪保留第 0 行宽字；1 列屏放不下宽字（strict 拒绝，recovery 以 U+FFFD 替换）。
+- 真实尺寸变更清掉 pending 结合基（后续结合标 strict 抛错、recovery 替换），宽字/结合字簇的已写文本保留。
+- 分块/逐字节一致：对固定含宽字+结合字+1049+DECAWM 的源做整体、逐字节、37 字节对应 38 个二段分割，状态签名一致。
+- 异常序列：strict 拒绝无相邻 base 的结合标，recovery 以 U+FFFD 替换并计数 replaced_scalars；malformed UTF-8 在 recovery 计 malformed_utf8 并替换，不扰动前序宽字。
+
+## 设计边界（区分实测/推断/未验证）
+
+- 实测：宽字恰好填满末两格在 DECAWM 开下的标准换行，以及末列宽字不足格预换行策略（源自 #161 批次里兼容保留的 wide fit policy，原版未观测 DECAWM 关下的宽字）。均为本核心既有行为，本切片不修改实现。
+- 推断（组合模型）：上述全部宽字/结合字与 1049、DECAWM 关、resize 的交叉，因为原版对这些组合无观测，不算原版匹配。
+- 未验证：完整 active grid 与逐格样式、每屏 origin 位、固定 ConPTY 运输、真实 TUI、真实 DPI/呈现与性能。
+
+## 红绿与实际验证
+
+[验证记录](validation.json) 保留源码/二进制 SHA、配置与通过/失败/跳过。
+
+- MSVC 19.42.34433.0、Release，Qt/candidate 关闭。定向构建成功；17 项核心 C++ CTest 全绿（16 项既有 + 新 widechar_1049_core 23/23 checks），0 跳过。
+- Python experiments.core.test_core/test_unicode/test_recovery 66 项通过。
+- 唯一中途红是测试自身把 recovery 模式误当 strict：recovery 以 U+FFFD 替换（不抛 InputError），已按 strict/recovery 区分修正两处；生产实现代码零改动，与合同基线无冲突。
+
+复验只需普通 C++ 构建，无新增依赖：
+
+    cmake -S . -B build/widechar-1049 -G 'Visual Studio 17 2022' -A x64 -DTERMFORGE_BUILD_QT_SHELL=OFF -DTERMFORGE_BUILD_CANDIDATE_ADAPTER=OFF
+    cmake --build build/widechar-1049 --config Release --target widechar_1049_test pending_wrap_test decawm_mode_test alternate_mode_test decom_origin_test buffer_state_test history_test resize_test resize_edges_test selection_test search_test search_reorder_test reply_test edit_csi_test order_query_test view_mapping_test private_mode_test replay terminal_trace recovery_probe receive --parallel 2
+    ctest --test-dir build/widechar-1049 -C Release -R '^(resize_core|resize_edges_core|history_core|selection_core|search_core|search_reorder_core|buffer_state_core|view_mapping_core|alternate_mode_core|decawm_mode_core|private_mode_core|decom_origin_core|reply_core|edit_csi_core|order_query_core|pending_wrap_core|widechar_1049_core)$'
+
+这里只声明有限 core feed 能力；Qt、原生 GUI、固定 ConPTY 路径、真实 TUI、呈现与性能均未由本项运行或验收。#27 保持开放。
diff --git a/experiments/core/results/2026-11-02-widechar-1049/validation.json b/experiments/core/results/2026-11-02-widechar-1049/validation.json
@@ -0,0 +1,120 @@
+{
+  "schema": "termforge-cpp-widechar-1049-local-validation-v1",
+  "issue": 27,
+  "base_commit": "3b17e92d7e74ace88d3e3f0daf9c1c37dcef946c",
+  "runtime_implementation_commit": "5db6e262a02c7f8042c93412d5fe2e9c0502eb12",
+  "validated_source_commit": "5db6e262a02c7f8042c93412d5fe2e9c0502eb12",
+  "final_binary_hash_observation": "After all directed tests completed; hashes taken once at the end and do not claim continuous monitoring.",
+  "configuration": {
+    "platform": "Windows-11-10.0.26200-SP0",
+    "python": "3.12.10",
+    "generator": "Visual Studio 17 2022",
+    "compiler": "MSVC 19.42.34433.0",
+    "compiler_sha256": "42fd88579adc0e2418a0a71ec9adcfcf677d39ff2724c9d6ac9d901264812bf2",
+    "configuration": "Release",
+    "qt_shell": false,
+    "candidate_adapter": false,
+    "conpty_runtime_exercised": false
+  },
+  "observed_contract": {
+    "reference_issues": [
+      27,
+      161,
+      123,
+      151
+    ],
+    "reference_docs": {
+      "docs/adr/0005-physical-row-resize.md": "677d3f889dc61acd8d3b0b0dd27c17b3b3fa0057c3b5f0c7253d823844be6fc2"
+    },
+    "whole_original_trace_replayed": false,
+    "original_runs_this_implementation": 0,
+    "basis": "composed_model_check",
+    "basis_note": "The original WindTerm never observed wide or combining text across 1049, so this slice locks the existing core implementation as the baseline with composed model checks; it is not an independent literal oracle and does not claim original parity.",
+    "parser_modes": [
+      "strict",
+      "recovery"
+    ],
+    "per_mode_two_way_split_cases": 38,
+    "per_mode_bytewise_cases": 1,
+    "cpp_checks": 23,
+    "cpp_test_groups": 23,
+    "covered_crossings": [
+      "wide scalar insufficient space at the last column pre-wraps identically under DECAWM on and off",
+      "wide scalar exact fit arms the delayed edge; DECAWM on wraps the next narrow printable, DECAWM off overwrites the trail and blanks the lead (non-splitting)",
+      "wide lead/trail survive a 1049 entry/exit with the pending edge hidden then restored",
+      "combining cluster (base + marks) survives a 1049 roundtrip and keeps accepting further marks",
+      "combining mark after a wide glyph lands on the lead cell and survives across 1049",
+      "primary and alternate keep independent combining attachments; 1049 re-entry clears the alternate",
+      "strict rejects a combining mark without an adjacent base; recovery replaces it with U+FFFD",
+      "row text round-trips the original wide + combining UTF-8 bytes without duplicating the wide glyph",
+      "1-column crop blanks an orphaned wide lead; resize while hidden crops the primary frame; 1-row crop keeps a row-0 wide glyph; a 1-column screen rejects a wide scalar",
+      "a real size change clears the pending combining base but keeps the cluster text",
+      "byte-wise and two-way split feeding reproduce the same state signature"
+    ]
+  },
+  "final_runtime_sha256": {
+    "experiments/core/widechar_1049_test.cpp": "e53fbdd8ec29bd31ae0aff26af7391955fdfa68b9713a24599d9313eba017396",
+    "CMakeLists.txt": "0b80a69d54e4d67530c8cbdd6a9a04cd84c0789c2dbf46490424def32af9d9d1",
+    "experiments/core/screen.hpp": "142e786bd202a63f948d5443bcd203985d57c30f7ca39bd1cb9133646780a9ed",
+    "experiments/core/terminal.hpp": "486527af086973b21a672699ad5a70cb5b2ed7b709203e420212f0ce0b5bc3c9",
+    "experiments/core/unicode_width.hpp": "d48bf60090a9c6a4263bb46ac587b13814b52c0dbe9d2649cee20e832a1e1926"
+  },
+  "final_binary_sha256": {
+    "widechar_1049_test.exe": "02ae31723e2b8d484a3bf311f748a1d48476f3be6dd3a7ec6a902014c9f1910d",
+    "pending_wrap_test.exe": "eb8a717b0c4ba69cf734d6ee93d27b8766e82cd8a45a997b0235eeaf257287e5",
+    "decawm_mode_test.exe": "43c86d7596091df5c0a45e8921ce51fa66c237986de5b22effebde141db5160a",
+    "alternate_mode_test.exe": "80a2b7dc760ce89894c1fc0f11a6af5e2e0e3559b5c9727aa5742088f9aef520",
+    "decom_origin_test.exe": "e3c381cb854e3fef6c3fae4b67e671301301ace4401323b3b8d16478529ba643",
+    "buffer_state_test.exe": "716c88d0ed4e3465d18c093ee98f5942d3b2af6c63cf8977a53363d01752263d",
+    "history_test.exe": "9a003119b9c363f4d7332889884df5974e70d6b7d49f7f5b9d6cac3a8be2f5b7",
+    "resize_test.exe": "91cc03d25f3aa5a3d03d34500568eaaebc8d65acfa188eaf2caf74d4b202a749",
+    "resize_edges_test.exe": "92c970aa4d42934ad82d93d06aa2df5f353f09275387c7e5b1f233100fea6369",
+    "selection_test.exe": "146345a13fa1bc5a5a10b87c2ee79513ae9bf67a23b9feb0de484e53888273cd",
+    "search_test.exe": "afd8c5d077d2f613bbb21e18b9011bf93a0ce0a562991c97647ef71ec05bef46",
+    "search_reorder_test.exe": "2c4421056ccdd3baf7a83717b9361e88f7df757d87d6af158ca619e7cf6e7fef",
+    "reply_test.exe": "2a0cd2b83980af36c9eb4a28144d5af3a83852bee8ea64581c00bfa27ef1b6f4",
+    "edit_csi_test.exe": "547ba7d0ab27b199c22bce2a3abe765d6473b147dcf81d767cf77b14d9f6ef8b",
+    "order_query_test.exe": "4fc5d9bdee1cc8e477acb1ec24a62c885c04a9909a02ee2a57c867d3df97a69a",
+    "view_mapping_test.exe": "5268dafaeb43213fa1a62c7f76ed07b9bef040651656ee69a1233f6536f27c84",
+    "private_mode_test.exe": "b114577527a736aef02a34685d39a7fabc0dc1476ed67b4dfb10ec486eb1e692",
+    "replay.exe": "ccbdd19bd058be45af92812c5aeba80b899d48eb95edc7b47edb1cf397cf8bd3",
+    "terminal_trace.exe": "0f336da7f0c8a522a0508434c602dfc3ab524a2440c93a33853560c68a83b71d",
+    "recovery_probe.exe": "487a4801c5ce9017f893540f7e4d9202980ffab32777ef16204e4860164074b1",
+    "receive.exe": "1e13dd7fcbfe973b8f6b1ea90cbd0d3e8945abb6d857c70bb02101db7d74dfab"
+  },
+  "executions": [
+    {
+      "label": "configure",
+      "exit_code": 0,
+      "timed_out": false,
+      "note": "build/widechar-1049, Qt and candidate disabled"
+    },
+    {
+      "label": "build-core-tests",
+      "exit_code": 0,
+      "timed_out": false,
+      "note": "widechar_1049_test + 16 existing core C++ test executables + replay/terminal_trace/recovery_probe/receive"
+    },
+    {
+      "label": "widechar_1049_test",
+      "exit_code": 0,
+      "note": "23/23 checks passed; strict+recovery 11 composed crossings each, 38 two-way splits and bytewise each"
+    },
+    {
+      "label": "ctest-core",
+      "exit_code": 0,
+      "note": "17/17 core C++ tests passed, 0 failed, 0 skipped"
+    },
+    {
+      "label": "python-core-unicode-recovery",
+      "exit_code": 0,
+      "note": "66 tests passed (experiments.core.test_core/test_unicode/test_recovery)"
+    }
+  ],
+  "skip_count": 0,
+  "residual_gaps": [
+    "Every wide/combining x 1049, x DECAWM-off and x resize crossing is a composed model check; the original WindTerm observed none of them, so they stay unobserved rather than original parity.",
+    "Full active grid, per-cell style, per-screen origin bit and fixed-ConPTY transport are outside this slice.",
+    "Wide char x DECAWM off (insufficient-space prewrap) was never observed in the original; only the exact-fit DECAWM-on wrap and the preserved wide-fit fallback policy derive from the existing #161 batch."
+  ]
+}