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| """Robust JSON parsing helpers for claim / audit outputs.""" | |
| from __future__ import annotations | |
| import json | |
| import re | |
| from typing import Any | |
| _FENCE_RE = re.compile(r"```(?:json)?\s*([\s\S]*?)```", re.IGNORECASE) | |
| def extract_json_value(text: str) -> Any | None: | |
| """Parse JSON from raw model text; tolerate markdown fences.""" | |
| raw = text.strip() | |
| if not raw: | |
| return None | |
| fence = _FENCE_RE.search(raw) | |
| if fence: | |
| raw = fence.group(1).strip() | |
| try: | |
| return json.loads(raw) | |
| except json.JSONDecodeError: | |
| pass | |
| start_candidates = [i for i in (raw.find("["), raw.find("{")) if i >= 0] | |
| if not start_candidates: | |
| return None | |
| start = min(start_candidates) | |
| for end in range(len(raw), start, -1): | |
| try: | |
| return json.loads(raw[start:end]) | |
| except json.JSONDecodeError: | |
| continue | |
| return None | |
| def as_list_of_dicts(value: Any) -> list[dict[str, Any]]: | |
| if isinstance(value, list): | |
| return [item for item in value if isinstance(item, dict)] | |
| if isinstance(value, dict): | |
| for key in ("blocks", "claims", "items"): | |
| inner = value.get(key) | |
| if isinstance(inner, list): | |
| return [item for item in inner if isinstance(item, dict)] | |
| return [] | |