后端新增规则资产版本管理和规则文件 CRUD 接口,优化风险 规则生成模板执行和员工数据模型字段,知识库 RAG 增强本 地回退和文档提取能力,清理旧风险规则文件统一由生成引擎 管理,前端审计页面增加运行时调试面板和规则资产编辑交互, 补充单元测试覆盖。
617 lines
22 KiB
Python
617 lines
22 KiB
Python
from __future__ import annotations
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import re
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from typing import Any
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from app.services.user_agent_knowledge_constants import (
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KNOWLEDGE_ARTICLE_PATTERN,
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KNOWLEDGE_LIST_ITEM_PATTERN,
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KNOWLEDGE_NUMBERED_ITEM_PATTERN,
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KNOWLEDGE_QUERY_STOPWORDS,
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KNOWLEDGE_SECTION_HEADING_PATTERN,
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MAX_KNOWLEDGE_MODEL_HITS,
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MAX_KNOWLEDGE_QUERY_TERMS,
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)
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class UserAgentKnowledgeHelpersMixin:
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GENERIC_KNOWLEDGE_TITLE_TERMS = {"远光软件", "股份有限", "有限公司"}
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KNOWLEDGE_QUERY_ANCHOR_TERMS = (
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"财务基础知识手册",
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"基础知识手册",
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"会计科目",
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"常用会计科目",
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"财务报表",
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"主要税种",
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"税种",
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"标准",
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"清单",
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"明细",
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"流程",
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)
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@staticmethod
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def _select_knowledge_model_hits(
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tool_payload: dict[str, Any],
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*,
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question: str | None = None,
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) -> list[dict[str, Any]]:
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raw_hits = [
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item
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for item in list(tool_payload.get("hits") or [])
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if isinstance(item, dict)
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][: max(MAX_KNOWLEDGE_MODEL_HITS + 3, 8)]
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if not raw_hits:
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return []
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query_terms = UserAgentKnowledgeHelpersMixin._extract_knowledge_query_terms(question or "")
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if not query_terms:
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return raw_hits[:MAX_KNOWLEDGE_MODEL_HITS]
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ranked_hits = sorted(
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enumerate(raw_hits),
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key=lambda value: (
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UserAgentKnowledgeHelpersMixin._score_knowledge_model_hit(
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value[1],
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query_terms=query_terms,
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rank_index=value[0],
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),
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-value[0],
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),
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reverse=True,
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)
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return [item for _, item in ranked_hits[:MAX_KNOWLEDGE_MODEL_HITS]]
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@staticmethod
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def _score_knowledge_model_hit(
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item: dict[str, Any],
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*,
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query_terms: list[str],
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rank_index: int,
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) -> int:
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title = str(item.get("title") or item.get("document_name") or "").lower()
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excerpt = str(item.get("excerpt") or "").lower()
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content = str(item.get("content") or "").lower()
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haystack = "\n".join([title, excerpt, content[:1400]])
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matched_terms = [term for term in query_terms if term in haystack]
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score = max(1, 48 - rank_index * 4)
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score += len(matched_terms) * 10
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score += sum(max(0, len(term) - 4) * 8 for term in matched_terms)
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score += sum(1 for term in matched_terms if term in title) * 8
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score += sum(max(0, len(term) - 4) * 6 for term in matched_terms if term in title)
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score += sum(
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(len(term) - 3) * 10
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for term in matched_terms
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if len(term) >= 4
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and term in title
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and term not in UserAgentKnowledgeHelpersMixin.GENERIC_KNOWLEDGE_TITLE_TERMS
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)
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leading_marker = UserAgentKnowledgeHelpersMixin._leading_knowledge_appendix_marker(content)
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if leading_marker == "# 章节导航":
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score -= 22
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elif leading_marker == "# 问答线索补充":
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score += 6 if matched_terms else -8
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elif leading_marker == "# 重点章节摘录":
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score += 4 if matched_terms else -4
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elif leading_marker == "# 结构化表格补充":
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score += 8 if matched_terms else -3
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if matched_terms and "|" in content:
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score += 8
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if matched_terms and any(marker in content for marker in (":", ":")):
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score += 10
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if matched_terms and "\n" in content:
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score += 4
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if matched_terms and any(marker in content for marker in ("附表", "第", "条")):
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score += 4
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if matched_terms and any(marker in content for marker in ("第", "条", ":", "-", "•")):
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score += 4
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if re.search(r"没有.{0,8}(信息|规定|说明|依据)", content):
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score -= 12
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return score
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@staticmethod
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def _leading_knowledge_appendix_marker(content: str) -> str:
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normalized = str(content or "").lstrip()
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for marker in ("# 章节导航", "# 重点章节摘录", "# 问答线索补充", "# 结构化表格补充"):
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index = normalized.find(marker)
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if 0 <= index <= 220:
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return marker
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return ""
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def _prioritize_knowledge_evidence_items(
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self,
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question: str,
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evidence_items: list[dict[str, Any]],
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) -> list[dict[str, Any]]:
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if not evidence_items or not self._question_requires_explicit_condition(question):
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return evidence_items
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for preferred_kind in ("table", "kv", "clause", "list"):
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for index, item in enumerate(evidence_items):
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if str(item.get("kind") or "") != preferred_kind:
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continue
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return [item, *evidence_items[:index], *evidence_items[index + 1 :]]
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for index, item in enumerate(evidence_items):
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if re.search(r"\d", str(item.get("content") or "")):
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return [item, *evidence_items[:index], *evidence_items[index + 1 :]]
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return evidence_items
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@staticmethod
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def _is_knowledge_lead_in_segment(item: dict[str, str]) -> bool:
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kind = str(item.get("kind") or "").strip()
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content = str(item.get("content") or "").strip()
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return kind in {"kv", "list", "clause"} and content.endswith((":", ":"))
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@staticmethod
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def _extract_knowledge_marker_family(content: str) -> str:
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normalized = str(content or "").strip()
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if not normalized:
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return ""
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if KNOWLEDGE_ARTICLE_PATTERN.match(normalized):
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return "article"
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if re.match(r"^\d+[.)、]\s*", normalized):
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return "arabic"
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if re.match(r"^[((][一二三四五六七八九十百零0-9]+[))]\s*", normalized):
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return "paren"
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if re.match(r"^[①②③④⑤⑥⑦⑧⑨⑩]\s*", normalized):
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return "circled"
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if KNOWLEDGE_LIST_ITEM_PATTERN.match(normalized):
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return "bullet"
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return ""
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@staticmethod
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def _knowledge_list_marker_sort_key(content: str) -> int:
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normalized = str(content or "").strip()
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match = re.match(r"^[((]([一二三四五六七八九十百零0-9]+)[))]", normalized)
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if not match:
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return 999
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marker = match.group(1)
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if marker.isdigit():
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return int(marker)
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values = {
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"零": 0,
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"一": 1,
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"二": 2,
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"三": 3,
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"四": 4,
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"五": 5,
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"六": 6,
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"七": 7,
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"八": 8,
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"九": 9,
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"十": 10,
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}
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if marker in values:
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return values[marker]
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if marker.startswith("十") and len(marker) == 2:
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return 10 + values.get(marker[1], 0)
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if marker.endswith("十") and len(marker) == 2:
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return values.get(marker[0], 0) * 10
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if "十" in marker:
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left, right = marker.split("十", 1)
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return values.get(left, 1) * 10 + values.get(right, 0)
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return 999
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@staticmethod
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def _format_knowledge_heading_label(heading: str) -> str:
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parts = [item.strip() for item in str(heading or "").split(">") if item.strip()]
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return " / ".join(parts)
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@staticmethod
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def _has_inline_numbered_knowledge_items(content: str) -> bool:
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return len(
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re.findall(
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r"[((][一二三四五六七八九十百零0-9]+[))]",
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str(content or ""),
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)
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) >= 2
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@staticmethod
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def _split_inline_numbered_knowledge_items(content: str) -> list[str]:
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normalized = str(content or "").strip()
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if not UserAgentKnowledgeHelpersMixin._has_inline_numbered_knowledge_items(normalized):
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return [normalized] if normalized else []
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marker_pattern = r"[((][一二三四五六七八九十百零0-9]+[))]"
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first_marker = re.search(marker_pattern, normalized)
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if first_marker is None:
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return [normalized] if normalized else []
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prefix = normalized[: first_marker.start()].strip(" ::")
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tail = normalized[first_marker.start() :].strip()
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item_pattern = (
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r"([((][一二三四五六七八九十百零0-9]+[))]\s*.*?"
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r"(?=\s*[((][一二三四五六七八九十百零0-9]+[))]|\s*$))"
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)
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items = [item.strip() for item in re.findall(item_pattern, tail) if item.strip()]
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if prefix:
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return [prefix, *items]
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return items or [normalized]
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@staticmethod
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def _focus_knowledge_segment_content(content: str, query_terms: list[str]) -> str:
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normalized = re.sub(r"\s+", " ", str(content or "").strip())
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if not normalized:
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return ""
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anchor_terms = sorted(
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{
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str(term or "").strip()
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for term in query_terms
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if len(str(term or "").strip()) >= 3
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},
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key=len,
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reverse=True,
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)
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anchor_index = -1
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for term in anchor_terms:
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anchor_index = normalized.lower().find(term.lower())
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if anchor_index >= 0:
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break
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if anchor_index < 0:
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return normalized
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prefix_window = normalized[max(0, anchor_index - 40) : anchor_index]
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marker_match = None
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for match in re.finditer(
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r"(?:第[一二三四五六七八九十百零0-9]+[部分章节条]|[一二三四五六七八九十]+、|[((][一二三四五六七八九十百零0-9]+[))])",
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prefix_window,
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):
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marker_match = match
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start = anchor_index
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if marker_match is not None:
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start = max(0, anchor_index - len(prefix_window) + marker_match.start())
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return normalized[start : start + 700].strip()
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@staticmethod
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def _split_markdown_table_cells(line: str) -> list[str]:
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stripped = str(line or "").strip()
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if stripped.startswith("|"):
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stripped = stripped[1:]
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if stripped.endswith("|"):
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stripped = stripped[:-1]
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return [
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re.sub(r"\s+", " ", cell.replace("**", "").strip())
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for cell in stripped.split("|")
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]
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@classmethod
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def _summarize_knowledge_table_preview(cls, preview: str) -> str:
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rows: list[list[str]] = []
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for line in str(preview or "").splitlines():
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if line.count("|") < 2:
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continue
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cells = cls._split_markdown_table_cells(line)
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if not cells or all(re.fullmatch(r":?-{2,}:?", cell.replace(" ", "")) for cell in cells):
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continue
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rows.append(cells)
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if len(rows) < 2:
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return "可直接参考的标准表如下。"
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header = rows[0]
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data_rows = [row for row in rows[1:] if len(row) == len(header)]
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if len(data_rows) == 1 and len(header) >= 2:
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row = data_rows[0]
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subject = row[0] or "该项目"
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pairs = [
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f"{label}:{value}"
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for label, value in zip(header[1:], row[1:])
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if label and value and value not in {"-", "—"}
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]
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if pairs:
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return f"{subject}的标准为:{';'.join(pairs)}。"
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return "相关标准项如下,请按表头和行内容对应使用。"
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def _summarize_knowledge_lines_conclusion(
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self,
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lines: list[str],
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*,
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heading: str = "",
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) -> str:
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clean_lines = [
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self._clean_knowledge_segment_text(line)
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for line in lines
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if self._clean_knowledge_segment_text(line)
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]
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if not clean_lines:
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return ""
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clean_heading = str(heading or "").strip()
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if not clean_heading and clean_lines and ":" not in clean_lines[0] and ":" not in clean_lines[0]:
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clean_heading = clean_lines[0]
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clean_heading = re.sub(
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r"^[一二三四五六七八九十百零0-9]+、\s*",
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"",
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clean_heading,
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)
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item_labels: list[str] = []
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for line in clean_lines:
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if ":" not in line and ":" not in line:
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continue
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label = re.split(r"[::]", line, maxsplit=1)[0].strip()
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if 1 <= len(label) <= 24:
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item_labels.append(label)
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if clean_heading and len(item_labels) >= 2:
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return f"{clean_heading}包括:{'、'.join(item_labels[:6])}。"
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if item_labels:
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return f"{item_labels[0]}:{clean_lines[0].split(':', 1)[-1].strip()}"
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return clean_lines[0]
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@staticmethod
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def _knowledge_lines_have_multiple_labeled_items(lines: list[str]) -> bool:
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labeled_count = 0
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for line in lines:
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normalized = str(line or "").strip()
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if ":" not in normalized and ":" not in normalized:
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continue
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label = re.split(r"[::]", normalized, maxsplit=1)[0].strip()
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if 1 <= len(label) <= 24:
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labeled_count += 1
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return labeled_count >= 2
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def _score_knowledge_evidence_candidate(
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self,
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item: dict[str, str],
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query_terms: list[str],
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) -> int:
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heading = str(item.get("heading") or "").lower()
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content = str(item.get("content") or "").lower()
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kind = str(item.get("kind") or "").strip()
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haystack = "\n".join([heading, content])
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matched_terms = [term for term in query_terms if term in haystack]
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score = len(matched_terms) * 10
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score += sum(max(0, len(term) - 4) * 8 for term in matched_terms)
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score += sum(1 for term in matched_terms if term in heading) * 6
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score += sum(max(0, len(term) - 4) * 6 for term in matched_terms if term in heading)
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if kind == "table":
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score += 10
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if content.count("\n") < 2:
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score -= 24
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elif kind in {"kv", "clause", "list"}:
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score += 8
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elif kind == "paragraph":
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score += 4
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if "问答线索补充" in heading or "重点章节摘录" in heading:
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score += 8
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if "结构化表格补充" in heading:
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score += 10
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if "章节导航" in heading or "目录" in heading:
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score -= 16
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if re.search(r"[.。…]{6,}", content):
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score -= 12
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if any(hint in content for hint in ("应", "需", "不得", "可以", "标准", "条件", "材料", "审批", "流程", "包括")):
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score += 3
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content_length = len(content)
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if content_length > 220:
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score -= min(8, (content_length - 220) // 40)
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return score
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@staticmethod
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def _extract_knowledge_query_terms(question: str) -> list[str]:
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normalized_question = str(question or "").strip().lower()
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if not normalized_question:
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return []
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terms: list[str] = []
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seen: set[str] = set()
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def remember(term: str) -> None:
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normalized = str(term or "").strip().lower()
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if (
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not normalized
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or normalized in seen
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or normalized in KNOWLEDGE_QUERY_STOPWORDS
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):
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return
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seen.add(normalized)
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terms.append(normalized)
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for item in re.findall(r"[a-z0-9][a-z0-9_\-]{1,}", normalized_question):
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remember(item)
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for block in re.findall(r"[\u4e00-\u9fff]{2,20}", normalized_question):
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remember(block)
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if len(terms) >= MAX_KNOWLEDGE_QUERY_TERMS:
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return terms
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for marker in ("标准", "金额", "限额", "额度"):
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marker_index = block.find(marker)
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if marker_index <= 0:
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continue
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subject = block[:marker_index]
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for width in (6, 4, 3, 2):
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remember(subject[-width:])
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for anchor in UserAgentKnowledgeHelpersMixin.KNOWLEDGE_QUERY_ANCHOR_TERMS:
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if anchor in block:
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remember(anchor)
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tail = block[-14:]
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for size in (8, 7, 6, 5, 4):
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for start in range(0, len(tail) - size + 1):
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piece = tail[start : start + size]
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if any(
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anchor in piece
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for anchor in UserAgentKnowledgeHelpersMixin.KNOWLEDGE_QUERY_ANCHOR_TERMS
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):
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remember(piece)
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if len(terms) >= MAX_KNOWLEDGE_QUERY_TERMS:
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return terms
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if len(block) <= 4:
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remember(block)
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||
continue
|
||
for size in (4, 3, 2):
|
||
for start in range(0, len(block) - size + 1):
|
||
remember(block[start : start + size])
|
||
if len(terms) >= MAX_KNOWLEDGE_QUERY_TERMS:
|
||
return terms
|
||
|
||
return terms[:MAX_KNOWLEDGE_QUERY_TERMS]
|
||
|
||
|
||
|
||
@staticmethod
|
||
def _clean_knowledge_segment_text(content: str) -> str:
|
||
normalized = str(content or "").strip()
|
||
normalized = re.sub(r"^[-*•]\s*", "", normalized)
|
||
normalized = re.sub(r"^(?:\d+[.)、]|[①②③④⑤⑥⑦⑧⑨⑩])\s*", "", normalized)
|
||
normalized = re.sub(r"^[((][一二三四五六七八九十百零0-9]+[))]\s*", "", normalized)
|
||
normalized = re.sub(r"\s+", " ", normalized)
|
||
if len(normalized) <= 180:
|
||
return normalized
|
||
return f"{normalized[:177].rstrip()}..."
|
||
|
||
|
||
|
||
@staticmethod
|
||
def _normalize_knowledge_line(content: str, *, preserve_marker: bool) -> str:
|
||
normalized = str(content or "").strip()
|
||
normalized = re.sub(r"^[-*•]\s*", "", normalized)
|
||
if not preserve_marker:
|
||
normalized = re.sub(r"^(?:\d+[.)、]|[①②③④⑤⑥⑦⑧⑨⑩])\s*", "", normalized)
|
||
normalized = re.sub(r"^[((][一二三四五六七八九十百零0-9]+[))]\s*", "", normalized)
|
||
normalized = re.sub(r"\s+", " ", normalized)
|
||
return normalized
|
||
|
||
|
||
|
||
def _split_clean_knowledge_lines(
|
||
self,
|
||
content: str,
|
||
*,
|
||
preserve_marker: bool,
|
||
) -> list[str]:
|
||
return [
|
||
line
|
||
for line in (
|
||
self._normalize_knowledge_line(item, preserve_marker=preserve_marker)
|
||
for item in str(content or "").splitlines()
|
||
)
|
||
if line
|
||
]
|
||
|
||
|
||
|
||
@staticmethod
|
||
def _extract_relevant_table_preview(
|
||
content: str,
|
||
query_terms: list[str],
|
||
*,
|
||
preferred_terms: list[str] | None = None,
|
||
max_rows: int = 3,
|
||
fallback_rows: int = 2,
|
||
) -> str:
|
||
lines = [line.strip() for line in str(content or "").splitlines() if line.strip()]
|
||
if len(lines) <= 3:
|
||
return "\n".join(lines)
|
||
|
||
header = lines[0]
|
||
divider = lines[1] if len(lines) > 1 else ""
|
||
body = lines[2:] if divider.count("|") >= 2 else lines[1:]
|
||
|
||
preferred = [
|
||
str(term or "").strip().lower()
|
||
for term in list(preferred_terms or [])
|
||
if str(term or "").strip()
|
||
]
|
||
base_terms = preferred + [
|
||
str(term or "").strip().lower()
|
||
for term in query_terms
|
||
if str(term or "").strip().lower() not in preferred
|
||
]
|
||
derived_terms: list[str] = []
|
||
for term in base_terms:
|
||
for marker in ("标准", "金额", "限额", "额度", "是多少"):
|
||
marker_index = term.find(marker)
|
||
if marker_index <= 0:
|
||
continue
|
||
subject = term[:marker_index].strip()
|
||
if len(subject) < 2:
|
||
continue
|
||
for width in (6, 4, 3, 2):
|
||
derived_terms.append(subject[-width:])
|
||
|
||
search_terms: list[str] = []
|
||
for term in [*preferred, *derived_terms, *base_terms]:
|
||
if term and term not in search_terms:
|
||
search_terms.append(term)
|
||
|
||
matched_rows = [
|
||
row
|
||
for row in body
|
||
if any(term in row.lower() for term in search_terms)
|
||
]
|
||
selected_rows = matched_rows[:max_rows] or body[:fallback_rows]
|
||
preview_lines = [header]
|
||
if divider:
|
||
preview_lines.append(divider)
|
||
preview_lines.extend(selected_rows)
|
||
return "\n".join(preview_lines).strip()
|
||
|
||
|
||
@staticmethod
|
||
def _question_requests_broad_knowledge_table(question: str) -> bool:
|
||
normalized = str(question or "").strip()
|
||
if not normalized:
|
||
return False
|
||
broad_hints = ("有哪些", "是什么", "介绍", "说明", "列表", "清单", "全部", "完整")
|
||
table_subject_hints = ("科目", "目录", "清单", "列表", "表", "明细")
|
||
return any(hint in normalized for hint in broad_hints) and any(
|
||
hint in normalized for hint in table_subject_hints
|
||
)
|
||
|
||
|
||
|
||
@staticmethod
|
||
def _question_requires_explicit_condition(question: str) -> bool:
|
||
normalized = str(question or "").strip()
|
||
return any(keyword in normalized for keyword in ("多少", "金额", "上限", "限额", "标准", "条件", "需要"))
|
||
|
||
|
||
|
||
@staticmethod
|
||
def _answer_evidence_has_numeric_or_condition(evidence_items: list[dict[str, Any]]) -> bool:
|
||
for item in evidence_items:
|
||
content = str(item.get("content") or "")
|
||
if re.search(r"\d", content):
|
||
return True
|
||
if any(
|
||
keyword in content
|
||
for keyword in ("应", "需", "不得", "可以", "条件", "材料", "审批", "流程", "标准", "适用")
|
||
):
|
||
return True
|
||
return False
|
||
|
||
|