{"abstract":"Text extraction drops child tails.","category":"Markup","checks":4,"contract":"Concatenate every text node in document order beneath an XML root.","contract_signature":"x","evaluation_group":"model-f3369c18f1919ff0","failed_approach":"The attempted repair handles the primary example but still violates a separate boundary of the same contract.","family":"xp-xml-text-tail","id":"FA-3231","implementations":{"attempt":{"sha256":"f763f682639c6ca17c15a2e61c7cb9e6a36fdf7f4f668e762cc4d627020fed71","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nimport re, unicodedata, json, csv, io, html, base64, binascii, codecs, struct\nfrom urllib.parse import quote, unquote, unquote_to_bytes, urlencode, parse_qsl, urlsplit, urlunsplit\nfrom email.header import decode_header, make_header\nfrom email.utils import getaddresses\nfrom xml.etree import ElementTree as ET\nimport shlex, string, textwrap\n\nN = 1\nobservations = []\ndef solve(x):\n    try:\n        return ''.join((e.text or '') for e in ET.fromstring(x).iter())\n    except Exception as exc:\n        return {\"error\": type(exc).__name__}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('boundary 1', solve('<p>a<b>b</b>c</p>'), 'abc')\ncheck('boundary 2', solve('<p><b>x</b>y<i>z</i>!</p>'), 'xyz!')\ncheck('boundary 3', solve('<p/>'), '')\ncheck('boundary 4', solve('<p>x</p>'), 'x')\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":"a314d73522013d484b1e69859d8ee6230e5a626c1ad5a815c003c78c4808e7ab","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nimport re, unicodedata, json, csv, io, html, base64, binascii, codecs, struct\nfrom urllib.parse import quote, unquote, unquote_to_bytes, urlencode, parse_qsl, urlsplit, urlunsplit\nfrom email.header import decode_header, make_header\nfrom email.utils import getaddresses\nfrom xml.etree import ElementTree as ET\nimport shlex, string, textwrap\n\nN = 1\nobservations = []\ndef solve(x):\n    try:\n        return ET.fromstring(x).text or ''\n    except Exception as exc:\n        return {\"error\": type(exc).__name__}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('boundary 1', solve('<p>a<b>b</b>c</p>'), 'abc')\ncheck('boundary 2', solve('<p><b>x</b>y<i>z</i>!</p>'), 'xyz!')\ncheck('boundary 3', solve('<p/>'), '')\ncheck('boundary 4', solve('<p>x</p>'), 'x')\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":"xp-xml-text-tail","generated_at":"2026-09-29T14:37:23.173442+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"A local executable model for consumers of structured text; oracle values are authored literals, not outputs copied from the repaired implementation.","root_cause":"The implementation applies an operation whose text or grammar semantics violate this contract: Concatenate every text node in document order beneath an XML root.","sha256":"33953c2ddecb7cea9c4678baa5eed272e0819e21d12fa24a55d781882dbb4abd","title":"Text extraction drops child tails · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verified":true,"visibility":"public","verification":{"attempt":{"elapsed_ms":56.298,"exit_code":1,"observations":[{"actual":"ab","check":"boundary 1","expected":"abc","passed":false},{"actual":"xz","check":"boundary 2","expected":"xyz!","passed":false},{"actual":"","check":"boundary 3","expected":"","passed":true},{"actual":"x","check":"boundary 4","expected":"x","passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"boundary 1\", \"actual\": \"ab\", \"expected\": \"abc\", \"passed\": false}, {\"check\": \"boundary 2\", \"actual\": \"xz\", \"expected\": \"xyz!\", \"passed\": false}, {\"check\": \"boundary 3\", \"actual\": \"\", \"expected\": \"\", \"passed\": true}, {\"check\": \"boundary 4\", \"actual\": \"x\", \"expected\": \"x\", \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":60.903,"exit_code":1,"observations":[{"actual":"a","check":"boundary 1","expected":"abc","passed":false},{"actual":"","check":"boundary 2","expected":"xyz!","passed":false},{"actual":"","check":"boundary 3","expected":"","passed":true},{"actual":"x","check":"boundary 4","expected":"x","passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"boundary 1\", \"actual\": \"a\", \"expected\": \"abc\", \"passed\": false}, {\"check\": \"boundary 2\", \"actual\": \"\", \"expected\": \"xyz!\", \"passed\": false}, {\"check\": \"boundary 3\", \"actual\": \"\", \"expected\": \"\", \"passed\": true}, {\"check\": \"boundary 4\", \"actual\": \"x\", \"expected\": \"x\", \"passed\": true}], \"passed\": false}\n"}},"member_only":{"stages":["fixed"],"fields":["implementations.fixed","verification.fixed","harness","repair"],"note":"The verified repair, its recorded checks, the repair description, and the scoring harness are available to members."}}