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| """Small, explicit source normalization helpers.""" | |
| import math | |
| import re | |
| from datetime import date | |
| from typing import Any | |
| NCT_PATTERN = re.compile(r"\bNCT\d{8}\b", re.IGNORECASE) | |
| def number(value: Any) -> float | None: | |
| if value is None or isinstance(value, bool): | |
| return None | |
| try: | |
| result = float(str(value).strip().replace(",", "").replace("−", "-")) | |
| return result if math.isfinite(result) else None | |
| except (ValueError, TypeError): | |
| return None | |
| def integer(value: Any) -> int | None: | |
| result = number(value) | |
| return int(result) if result is not None and result.is_integer() else None | |
| def normalize_date(value: str | None) -> str | None: | |
| """Use the LAST possible day for partial completion dates (conservative age rule).""" | |
| if not value: | |
| return None | |
| from calendar import monthrange | |
| try: | |
| parts = str(value).split("-") | |
| year = int(parts[0]) | |
| month = int(parts[1]) if len(parts) > 1 else 12 | |
| day = int(parts[2]) if len(parts) > 2 else monthrange(year, month)[1] | |
| return date(year, month, day).isoformat() | |
| except (ValueError, IndexError): | |
| return None | |
| def pmid(value: Any) -> str | None: | |
| if not value: | |
| return None | |
| match = re.fullmatch(r"(?:https?://(?:www\.)?(?:pubmed\.ncbi\.nlm\.nih\.gov/|ncbi\.nlm\.nih\.gov/pubmed/))?(\d+)/?", str(value).strip()) | |
| return match.group(1) if match else None | |
| def empty_study(identifier: str, source: str) -> dict: | |
| return { | |
| "id": identifier, "source": source, "title": "", "abstract": "", "authors": [], | |
| "venue": "", "url": "", "year": None, "publication_date": None, | |
| "population": "", "intervention": "", "comparator": "", "outcome": "", | |
| "outcome_unit": "", "result_label": "no_result_stated", "null_score": None, | |
| "evidence_span": "", "n": None, "estimate": None, "ci_low": None, | |
| "ci_high": None, "p_value": None, "effect_type": None, "has_control": None, | |
| "is_review": False, "is_retracted": False, "pmids": [], "nct_ids": [], | |
| "referenced_works": [], "result_pmids": [], "has_linked_publication": False, | |
| "primary_completion_date": None, "enrollment_actual": None, | |
| "enrollment_planned": None, "overall_status": None, "why_stopped": None, | |
| "has_results": None, "cited_by_count": 0, | |
| } | |