{"abstract":"Single-line Enter inserts a newline instead of submitting.","category":"Text editing","checks":10,"contract":"Composition state or legacy code 229 delegates to native input; plain multiline Enter inserts newline; other Enter submits; Escape preserves draft; Tab honors Shift.","evaluation_group":"xi-ime-keys","failed_approach":"Ignoring Shift prevents the explicit submit gesture in multiline mode.","family":"xi-ime-keys-multiline","id":"FA-8991","implementations":{"attempt":{"sha256":"b9bfbabc49182089d949ba9c3ba8a8f1e0592f97246096c0708ccdcf471afab9","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(key, composing, code, shift, multiline, value):\n    if composing or code == 229: return ('native', value)\n    if key == 'Enter':\n        if multiline: return ('insert', value + '\\n')\n        return ('submit', value)\n    if key == 'Escape': return ('cancel', value)\n    if key == 'Tab': return ('previous' if shift else 'next', value)\n    return ('native', value)\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('composition', solve('Enter', True, 13, False, False, 'draft'), ('native', 'draft'))\ncheck('legacy', solve('Enter', False, 229, False, False, 'draft'), ('native', 'draft'))\ncheck('single', solve('Enter', False, 13, False, False, 'draft'), ('submit', 'draft'))\ncheck('multiline', solve('Enter', False, 13, False, True, 'draft'), ('insert', 'draft\\n'))\ncheck('shift submit', solve('Enter', False, 13, True, True, 'draft'), ('submit', 'draft'))\ncheck('escape', solve('Escape', False, 27, False, False, 'draft'), ('cancel', 'draft'))\ncheck('shift tab', solve('Tab', False, 9, True, False, 'draft'), ('previous', 'draft'))\ncheck('tab', solve('Tab', False, 9, False, False, 'draft'), ('next', 'draft'))\ncheck('parameterized composition text', solve('Enter',True,13,False,False,'draft'+str(N)), ('native','draft'+str(N)))\nfor repetition in range(N):\n    check('repeat tab', solve('Tab', False, 9, False, False, 'draft'), ('next', 'draft'))\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"broken":{"sha256":"9d4795ce20e730981b19f80a400db6f295315e0179560f235921aed462e2e681","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(key, composing, code, shift, multiline, value):\n    if composing or code == 229: return ('native', value)\n    if key == 'Enter':\n        if not shift: return ('insert', value + '\\n')\n        return ('submit', value)\n    if key == 'Escape': return ('cancel', value)\n    if key == 'Tab': return ('previous' if shift else 'next', value)\n    return ('native', value)\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('composition', solve('Enter', True, 13, False, False, 'draft'), ('native', 'draft'))\ncheck('legacy', solve('Enter', False, 229, False, False, 'draft'), ('native', 'draft'))\ncheck('single', solve('Enter', False, 13, False, False, 'draft'), ('submit', 'draft'))\ncheck('multiline', solve('Enter', False, 13, False, True, 'draft'), ('insert', 'draft\\n'))\ncheck('shift submit', solve('Enter', False, 13, True, True, 'draft'), ('submit', 'draft'))\ncheck('escape', solve('Escape', False, 27, False, False, 'draft'), ('cancel', 'draft'))\ncheck('shift tab', solve('Tab', False, 9, True, False, 'draft'), ('previous', 'draft'))\ncheck('tab', solve('Tab', False, 9, False, False, 'draft'), ('next', 'draft'))\ncheck('parameterized composition text', solve('Enter',True,13,False,False,'draft'+str(N)), ('native','draft'+str(N)))\nfor repetition in range(N):\n    check('repeat tab', solve('Tab', False, 9, False, False, 'draft'), ('next', 'draft'))\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"fixed":{"sha256":"ea291435c849164eabbf63da7f76ca4e3bbbb91381ca534736a97dfccb6a5d51","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(key, composing, code, shift, multiline, value):\n    if composing or code == 229: return ('native', value)\n    if key == 'Enter':\n        if multiline and not shift: return ('insert', value + '\\n')\n        return ('submit', value)\n    if key == 'Escape': return ('cancel', value)\n    if key == 'Tab': return ('previous' if shift else 'next', value)\n    return ('native', value)\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('composition', solve('Enter', True, 13, False, False, 'draft'), ('native', 'draft'))\ncheck('legacy', solve('Enter', False, 229, False, False, 'draft'), ('native', 'draft'))\ncheck('single', solve('Enter', False, 13, False, False, 'draft'), ('submit', 'draft'))\ncheck('multiline', solve('Enter', False, 13, False, True, 'draft'), ('insert', 'draft\\n'))\ncheck('shift submit', solve('Enter', False, 13, True, True, 'draft'), ('submit', 'draft'))\ncheck('escape', solve('Escape', False, 27, False, False, 'draft'), ('cancel', 'draft'))\ncheck('shift tab', solve('Tab', False, 9, True, False, 'draft'), ('previous', 'draft'))\ncheck('tab', solve('Tab', False, 9, False, False, 'draft'), ('next', 'draft'))\ncheck('parameterized composition text', solve('Enter',True,13,False,False,'draft'+str(N)), ('native','draft'+str(N)))\nfor repetition in range(N):\n    check('repeat tab', solve('Tab', False, 9, False, False, 'draft'), ('next', 'draft'))\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"}},"limitations":" This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.","method":"Deterministic executable model with adversarial boundary fixtures.","provenance":{"created_by":"Failure Map","dependencies":"Python standard library","family":"xi-ime-keys-multiline","generated_at":"2026-09-29T14:38:26.173831+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"A deterministic model of composition-aware keyboard commands; this isolates one interface invariant without requiring a browser.","repair":"Implement the multiline operation as `multiline and not shift`.","root_cause":"The multiline operation uses `not shift` where the contract requires `multiline and not shift`.","sha256":"20694c11838dea5116c0185595cd8f5b8bff9e34d7b625f5e6571eaf0d2b8bc2","title":"Composition-aware keyboard commands: Single-line Enter inserts a newline instead of submitting · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":36.835,"exit_code":1,"observations":[{"actual":["native","draft"],"check":"composition","expected":["native","draft"],"passed":true},{"actual":["native","draft"],"check":"legacy","expected":["native","draft"],"passed":true},{"actual":["submit","draft"],"check":"single","expected":["submit","draft"],"passed":true},{"actual":["insert","draft\n"],"check":"multiline","expected":["insert","draft\n"],"passed":true},{"actual":["insert","draft\n"],"check":"shift submit","expected":["submit","draft"],"passed":false},{"actual":["cancel","draft"],"check":"escape","expected":["cancel","draft"],"passed":true},{"actual":["previous","draft"],"check":"shift tab","expected":["previous","draft"],"passed":true},{"actual":["next","draft"],"check":"tab","expected":["next","draft"],"passed":true},{"actual":["native","draft1"],"check":"parameterized composition text","expected":["native","draft1"],"passed":true},{"actual":["next","draft"],"check":"repeat tab","expected":["next","draft"],"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"composition\", \"actual\": [\"native\", \"draft\"], \"expected\": [\"native\", \"draft\"], \"passed\": true}, {\"check\": \"legacy\", \"actual\": [\"native\", \"draft\"], \"expected\": [\"native\", \"draft\"], \"passed\": true}, {\"check\": \"single\", \"actual\": [\"submit\", \"draft\"], \"expected\": [\"submit\", \"draft\"], \"passed\": true}, {\"check\": \"multiline\", \"actual\": [\"insert\", \"draft\\n\"], \"expected\": [\"insert\", \"draft\\n\"], \"passed\": true}, {\"check\": \"shift submit\", \"actual\": [\"insert\", \"draft\\n\"], \"expected\": [\"submit\", \"draft\"], \"passed\": false}, {\"check\": \"escape\", \"actual\": [\"cancel\", \"draft\"], \"expected\": [\"cancel\", \"draft\"], \"passed\": true}, {\"check\": \"shift tab\", \"actual\": [\"previous\", \"draft\"], \"expected\": [\"previous\", \"draft\"], \"passed\": true}, {\"check\": \"tab\", \"actual\": [\"next\", \"draft\"], \"expected\": [\"next\", \"draft\"], \"passed\": true}, {\"check\": \"parameterized composition text\", \"actual\": [\"native\", \"draft1\"], \"expected\": [\"native\", \"draft1\"], \"passed\": true}, {\"check\": \"repeat tab\", \"actual\": [\"next\", \"draft\"], \"expected\": [\"next\", \"draft\"], \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":38.892,"exit_code":1,"observations":[{"actual":["native","draft"],"check":"composition","expected":["native","draft"],"passed":true},{"actual":["native","draft"],"check":"legacy","expected":["native","draft"],"passed":true},{"actual":["insert","draft\n"],"check":"single","expected":["submit","draft"],"passed":false},{"actual":["insert","draft\n"],"check":"multiline","expected":["insert","draft\n"],"passed":true},{"actual":["submit","draft"],"check":"shift submit","expected":["submit","draft"],"passed":true},{"actual":["cancel","draft"],"check":"escape","expected":["cancel","draft"],"passed":true},{"actual":["previous","draft"],"check":"shift tab","expected":["previous","draft"],"passed":true},{"actual":["next","draft"],"check":"tab","expected":["next","draft"],"passed":true},{"actual":["native","draft1"],"check":"parameterized composition text","expected":["native","draft1"],"passed":true},{"actual":["next","draft"],"check":"repeat tab","expected":["next","draft"],"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"composition\", \"actual\": [\"native\", \"draft\"], \"expected\": [\"native\", \"draft\"], \"passed\": true}, {\"check\": \"legacy\", \"actual\": [\"native\", \"draft\"], \"expected\": [\"native\", \"draft\"], \"passed\": true}, {\"check\": \"single\", \"actual\": [\"insert\", \"draft\\n\"], \"expected\": [\"submit\", \"draft\"], \"passed\": false}, {\"check\": \"multiline\", \"actual\": [\"insert\", \"draft\\n\"], \"expected\": [\"insert\", \"draft\\n\"], \"passed\": true}, {\"check\": \"shift submit\", \"actual\": [\"submit\", \"draft\"], \"expected\": [\"submit\", \"draft\"], \"passed\": true}, {\"check\": \"escape\", \"actual\": [\"cancel\", \"draft\"], \"expected\": [\"cancel\", \"draft\"], \"passed\": true}, {\"check\": \"shift tab\", \"actual\": [\"previous\", \"draft\"], \"expected\": [\"previous\", \"draft\"], \"passed\": true}, {\"check\": \"tab\", \"actual\": [\"next\", \"draft\"], \"expected\": [\"next\", \"draft\"], \"passed\": true}, {\"check\": \"parameterized composition text\", \"actual\": [\"native\", \"draft1\"], \"expected\": [\"native\", \"draft1\"], \"passed\": true}, {\"check\": \"repeat tab\", \"actual\": [\"next\", \"draft\"], \"expected\": [\"next\", \"draft\"], \"passed\": true}], \"passed\": false}\n"},"fixed":{"elapsed_ms":36.827,"exit_code":0,"observations":[{"actual":["native","draft"],"check":"composition","expected":["native","draft"],"passed":true},{"actual":["native","draft"],"check":"legacy","expected":["native","draft"],"passed":true},{"actual":["submit","draft"],"check":"single","expected":["submit","draft"],"passed":true},{"actual":["insert","draft\n"],"check":"multiline","expected":["insert","draft\n"],"passed":true},{"actual":["submit","draft"],"check":"shift submit","expected":["submit","draft"],"passed":true},{"actual":["cancel","draft"],"check":"escape","expected":["cancel","draft"],"passed":true},{"actual":["previous","draft"],"check":"shift tab","expected":["previous","draft"],"passed":true},{"actual":["next","draft"],"check":"tab","expected":["next","draft"],"passed":true},{"actual":["native","draft1"],"check":"parameterized composition text","expected":["native","draft1"],"passed":true},{"actual":["next","draft"],"check":"repeat tab","expected":["next","draft"],"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"composition\", \"actual\": [\"native\", \"draft\"], \"expected\": [\"native\", \"draft\"], \"passed\": true}, {\"check\": \"legacy\", \"actual\": [\"native\", \"draft\"], \"expected\": [\"native\", \"draft\"], \"passed\": true}, {\"check\": \"single\", \"actual\": [\"submit\", \"draft\"], \"expected\": [\"submit\", \"draft\"], \"passed\": true}, {\"check\": \"multiline\", \"actual\": [\"insert\", \"draft\\n\"], \"expected\": [\"insert\", \"draft\\n\"], \"passed\": true}, {\"check\": \"shift submit\", \"actual\": [\"submit\", \"draft\"], \"expected\": [\"submit\", \"draft\"], \"passed\": true}, {\"check\": \"escape\", \"actual\": [\"cancel\", \"draft\"], \"expected\": [\"cancel\", \"draft\"], \"passed\": true}, {\"check\": \"shift tab\", \"actual\": [\"previous\", \"draft\"], \"expected\": [\"previous\", \"draft\"], \"passed\": true}, {\"check\": \"tab\", \"actual\": [\"next\", \"draft\"], \"expected\": [\"next\", \"draft\"], \"passed\": true}, {\"check\": \"parameterized composition text\", \"actual\": [\"native\", \"draft1\"], \"expected\": [\"native\", \"draft1\"], \"passed\": true}, {\"check\": \"repeat tab\", \"actual\": [\"next\", \"draft\"], \"expected\": [\"next\", \"draft\"], \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}