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Update rag/ingest.py
Browse files- rag/ingest.py +35 -291
rag/ingest.py
CHANGED
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# rag/ingest.py
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"""
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EDINET/アップロードPDFの取り込み(RAGインデックス投入)ユーティリティ
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- ingest_edinet_for_company(edinet_code, date)
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指定日の EDINET 公開一覧から該当企業の docID を探し、PDFを取得してインデックスへ投入
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- ingest_pdf_bytes(title, source_url, pdf_bytes)
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アップロード等のPDFバイト列をそのまま投入
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- download_edinet_pdf(doc_id)
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EDINET API から docID の PDF(=type=1) をダウンロード
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依存:
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- irpr.deps.add_to_index …… ベクトル化+永続化
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- pymupdf (fitz) …… PDF → テキスト抽出
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- requests …… EDINET API 呼び出し
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"""
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from __future__ import annotations
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import
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import os
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import re
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import time
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import json
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import math
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import datetime as dt
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from typing import List, Dict, Optional
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import requests
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import fitz # PyMuPDF
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from irpr.deps import add_to_index
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def _http_get(url: str, *, headers: Optional[dict] = None, params: Optional[dict] = None,
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timeout: int = 60) -> requests.Response:
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"""GET with simple retry."""
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last = None
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for _ in range(3):
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try:
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r = requests.get(url, headers=headers, params=params, timeout=timeout)
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if r.status_code >= 500:
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time.sleep(1.2)
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last = r
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continue
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return r
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except Exception as e:
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last = e
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time.sleep(1.2)
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if isinstance(last, requests.Response):
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return last
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raise RuntimeError(f"GET failed for {url}: {last!r}")
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def list_edinet_docs_for_date(date: str) -> List[dict]:
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"""
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指定日の EDINET 公開一覧(JSON)を取得。
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API仕様上、日付は必須・1日単位(時刻は不可)。
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"""
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params = {"date": date, "type": 2} # type=2 → JSON(一覧)
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r = _http_get(EDINET_API_LIST, params=params)
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if r.status_code != 200:
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raise RuntimeError(f"EDINET list error: {r.status_code} {r.text[:200]}")
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try:
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data = r.json()
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except json.JSONDecodeError:
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# まれにCSVが返るケースを回避(公式はJSONだが保険)
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raise RuntimeError("EDINET list: JSON decode error")
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return data.get("results", []) or []
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def find_company_doc_ids(edinet_code: str, date: str, search_window_days: int = 2) -> List[dict]:
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"""
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指定日の前後 search_window_days 日をゆるく探索し、
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edinetCode が一致する結果を返す(スコア順:優先種別→新しい日付)。
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"""
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base = dt.datetime.strptime(date, "%Y-%m-%d").date()
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candidates: List[dict] = []
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for off in range(-search_window_days, search_window_days + 1):
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d = (base + dt.timedelta(days=off)).isoformat()
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try:
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rows = list_edinet_docs_for_date(d)
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except Exception:
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continue
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for row in rows:
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if (row.get("edinetCode") or "").upper() == edinet_code.upper():
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# スコアリング:好ましいdocTypeを優先
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dtc = str(row.get("docTypeCode") or "")
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score = 100 if dtc in PREFERRED_DOC_TYPES else 0
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# さらに当日日付に近いほど加点(0日差=+20, 1日差=+15, …)
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score += max(0, 20 - 5 * abs(off))
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row["_score"] = score
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row["_date"] = d
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candidates.append(row)
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# スコア降順、提出時間の降順でソート
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candidates.sort(key=lambda x: (x.get("_score", 0), x.get("submitDateTime", "")), reverse=True)
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return candidates
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def download_edinet_pdf(doc_id: str) -> Optional[bytes]:
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"""
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EDINET の docID から PDF バイト列を取得。
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環境変数 EDINET_API_KEY が必要です。
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- URL 文字列が渡された場合はそのまま GET します(簡易対応)。
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"""
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if doc_id.startswith("http://") or doc_id.startswith("https://"):
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r = _http_get(doc_id)
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return r.content if r.status_code == 200 else None
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api_key = os.environ.get("EDINET_API_KEY")
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if not api_key:
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# APIキー未設定の場合は UI 側でアップロードを利用してください
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raise RuntimeError("EDINET_API_KEY is not set")
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url = EDINET_API_DOC.format(doc_id=doc_id)
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headers = {"X-API-KEY": api_key}
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# type=1 が PDF
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r = _http_get(url, headers=headers, params={"type": 1})
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if r.status_code != 200:
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return None
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return r.content
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def ingest_edinet_for_company(edinet_code: str, date: str, max_docs: int = 2) -> int:
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"""
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会社コード+日付で EDINET doc を探し、PDFを取り込んでチャンク投入。
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返値は投入したチャンク数。
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"""
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if not edinet_code or not date:
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raise ValueError("edinet_code と date は必須です(dateはYYYY-MM-DD)")
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found = find_company_doc_ids(edinet_code, date, search_window_days=2)
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if not found:
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return 0
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consumed = 0
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for row in found[:max_docs]:
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doc_id = row.get("docID") or row.get("docId")
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if not doc_id:
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continue
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title = (row.get("title") or row.get("docDescription") or "edinet").strip()
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pdf = download_edinet_pdf(doc_id)
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if not pdf:
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continue
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text = pdf_to_text(pdf)
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if not text.strip():
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continue
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"title": title,
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"doc_id": doc_id,
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"chunk_id": f"{
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})
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consumed += len(recs)
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return consumed
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# =============================================================================
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# アップロードPDFの取り込み
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# =============================================================================
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def ingest_pdf_bytes(title: str, source_url: str, pdf_bytes: bytes) -> int:
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"""
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ローカル/アップロードPDFをインデックスへ投入。
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"""
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text = pdf_to_text(pdf_bytes)
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if not text.strip():
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return 0
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recs = []
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for j, chunk in enumerate(chunk_text(text)):
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recs.append({
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"text": chunk,
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"source_url": source_url or "upload",
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"title": title or "upload",
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"doc_id": f"upload:{title}",
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"chunk_id": f"upload-{j:04d}"
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})
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if recs:
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add_to_index(recs)
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return len(recs)
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# =============================================================================
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# PDF → テキスト抽出
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# =============================================================================
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def pdf_to_text(pdf_bytes: bytes) -> str:
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"""
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PyMuPDF でプレーンテキスト抽出。日本語でも高精度。
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画像だけのPDFはテキストが空になることがあります(OCRは未実装)。
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"""
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try:
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with fitz.open(stream=pdf_bytes, filetype="pdf") as doc:
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texts = []
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for page in doc:
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# "text" は改行付きのレイアウトテキスト、"blocks"等でも可
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t = page.get_text("text")
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texts.append(t)
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text = "\n\n".join(texts)
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# 余計な全角空白の連続などを軽く正規化
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text = re.sub(r"[ \t\u3000]+", " ", text)
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# 連続改行の整理
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text = re.sub(r"\n{3,}", "\n\n", text)
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return text.strip()
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except Exception:
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return ""
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#
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#
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_SENT_SPLIT_RE = re.compile(r"(.*?[\.\?\!。!?]\s*)", re.S)
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def split_sentences(text: str) -> List[str]:
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"""
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「。!?.!?」までを1文として切り出し。末尾に句点が無い行も拾う。
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"""
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parts = []
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pos = 0
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for m in _SENT_SPLIT_RE.finditer(text):
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parts.append(m.group(0))
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pos = m.end()
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if pos < len(text):
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parts.append(text[pos:])
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# 行単位の段落も尊重(空行で分割したい場合はここで更に加工)
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out = []
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for p in parts:
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p = p.strip()
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if p:
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out.extend([s for s in p.splitlines() if s.strip()])
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return out
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def chunk_text(text: str, target_chars: int = 1000, overlap_chars: int = 200) -> List[str]:
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"""
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文章境界をできるだけ保ちながら、概ね target_chars で分割。
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チャンク間に overlap_chars の重なりをつけ、RAGの一致率を上げる。
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"""
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if not text:
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return []
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sents = split_sentences(text)
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chunks: List[str] = []
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buf: List[str] = []
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size = 0
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def flush():
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if not buf:
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return
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chunk = "".join(buf).strip()
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if chunk:
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chunks.append(chunk)
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for s in sents:
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if size + len(s) <= target_chars or not buf:
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buf.append(s)
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size += len(s)
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continue
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# いったん確定
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flush()
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# オーバーラップ確保
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tail = []
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remain = overlap_chars
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# 後ろから文を足していく
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for t in reversed(buf):
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if remain <= 0:
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break
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tail.append(t)
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remain -= len(t)
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tail.reverse()
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buf = tail + [s]
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size = sum(len(x) for x in buf)
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flush()
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return chunks
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# rag/ingest.py
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from __future__ import annotations
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import io, uuid
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from typing import List
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import fitz # PyMuPDF
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from irpr.deps import add_to_index
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def _split_text(text: str, chunk_size=800, overlap=150) -> List[str]:
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text = (text or "").strip()
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if not text:
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return []
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chunks = []
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i = 0
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while i < len(text):
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chunk = text[i:i+chunk_size]
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chunks.append(chunk)
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i += chunk_size - overlap
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if i < 0 or i >= len(text):
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break
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return chunks
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+
def ingest_pdf_bytes(title: str, source_url: str, pdf_bytes: bytes) -> int:
|
| 23 |
+
doc = fitz.open(stream=io.BytesIO(pdf_bytes), filetype="pdf")
|
| 24 |
+
all_chunks = []
|
| 25 |
+
doc_id = str(uuid.uuid4())
|
| 26 |
+
for page_no in range(doc.page_count):
|
| 27 |
+
page = doc.load_page(page_no)
|
| 28 |
+
raw = page.get_text("text")
|
| 29 |
+
# ページ番号などを付与しておく
|
| 30 |
+
page_text = f"[p.{page_no+1}] {raw}".strip()
|
| 31 |
+
for j, ch in enumerate(_split_text(page_text, 900, 150)):
|
| 32 |
+
all_chunks.append({
|
| 33 |
+
"text": ch,
|
| 34 |
"title": title,
|
| 35 |
+
"source_url": source_url,
|
| 36 |
"doc_id": doc_id,
|
| 37 |
+
"chunk_id": f"{page_no+1}-{j+1}",
|
| 38 |
})
|
| 39 |
+
doc.close()
|
| 40 |
+
return add_to_index(all_chunks)
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| 41 |
|
| 42 |
+
# ---- EDINET ダミー実装(OpenAI専用版では未サポート)----
|
| 43 |
+
def ingest_edinet_for_company(edinet_code: str, date: str) -> int:
|
| 44 |
+
# ここでは何もしない(将来実装用の置き場所)
|
| 45 |
+
return 0
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