cshandClaude Fable 5
b597edfc70
lookup.py: exempt code-anchored ASCII identifiers from the mixed zh/en gate so exact hits are no longer dropped; dedup parent/child sections in results; validate write-prelude anchors in --check. references: correct interpreter-verified facts (case-as-expression, control-flow semicolons, __line__/__stack_frame, tslObjects order, destroy timing, ErrDefine, truncated outputs), fix headings, scope qualifiers and reversed quotes; strip dead preamble metadata from all 24 pages. packaging: exclude __pycache__/*.pyc from playbook and bundle copies; update build test file-count assertion to match. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
657 lines
23 KiB
Python
657 lines
23 KiB
Python
#!/usr/bin/env python3
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import argparse
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import difflib
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import re
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import sys
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import unicodedata
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from dataclasses import dataclass
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from pathlib import Path
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from urllib.parse import unquote
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SKILL_ROOT = Path(__file__).resolve().parents[1]
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DEFAULT_REFERENCES_DIR = SKILL_ROOT / "references"
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HEADING_RE = re.compile(r"^(#{1,6})(?!#)\s+(.+?)\s*$")
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FENCE_RE = re.compile(r"^```([^`]*)$")
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MARKDOWN_LINK_RE = re.compile(r"!?\[[^\]]*\]\(([^)]+)\)")
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ASCII_TOKEN_RE = re.compile(r"[a-z_][a-z0-9_.$:+-]*", re.IGNORECASE)
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CHINESE_RUN_RE = re.compile(r"[\u3400-\u9fff]+")
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INLINE_CODE_RE = re.compile(r"`([^`\n]+)`")
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FENCED_CODE_RE = re.compile(r"```[^\n]*\n(.*?)```", re.DOTALL)
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IDENTITY_PREFIX = "代码块身份："
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BLOCK_DESCRIPTION_PREFIX = "代码块说明："
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ALLOWED_IDENTITIES = {
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"可直接照写示例",
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"反例 / 不可照写",
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"输出片段",
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"配置片段 / 概念骨架",
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"仅服务端可执行示例",
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}
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ROUTER_PHRASES = ("路由中心", "选择一个主专题", "候选页继续判断")
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EXCLUDED_REFERENCE_FILES = {"index.md"}
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SUSPICIOUS_FENCE_RE = re.compile(r"^(?:\s+`{3}|`{4,})")
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WRITE_PRELUDE_ANCHORS = (
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("02_core_model.md", "文件模型核心规则"),
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("01_quickstart.md", "语言核心事实速查"),
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)
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HEADING_TOKEN_SCORE = 12
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HEADING_EXACT_SCORE = 20
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TERM_TOKEN_SCORE = 10
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TERM_EXACT_SCORE = 16
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PAGE_TITLE_TOKEN_SCORE = 5
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PAGE_TITLE_EXACT_SCORE = 8
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BODY_TOKEN_SCORE = 3
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BODY_EXACT_SCORE = 4
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DIRECT_EXAMPLE_BOOST = 8
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PITFALL_PAGE_BOOST = 18
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COUNTEREXAMPLE_BOOST = 8
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EXACT_ERROR_BOOST = 14
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MIXED_QUERY_MIN_SCORE = 10
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@dataclass(frozen=True)
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class Section:
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id: str
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page: Path
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page_title: str
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heading_path: tuple[str, ...]
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body: str
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identities: tuple[str, ...]
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searchable_text: str
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@dataclass(frozen=True)
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class ValidationProblem:
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page: Path
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line: int
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message: str
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@dataclass(frozen=True)
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class QueryMatch:
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section: Section
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score: int
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priority: tuple[int, int, int, int, int] = (0, 0, 0, 0, 0)
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@dataclass(frozen=True)
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class ScoreBreakdown:
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heading_path: int
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exact_term: int
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page_title: int
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body: int
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mode_boost: int
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diagnose_priority: bool = False
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@property
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def lexical_total(self) -> int:
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return self.heading_path + self.exact_term + self.page_title + self.body
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@property
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def total(self) -> int:
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return self.lexical_total + self.mode_boost
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@property
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def priority(self) -> tuple[int, int, int, int, int]:
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if self.diagnose_priority:
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return (
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self.mode_boost,
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self.heading_path,
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self.exact_term,
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self.page_title,
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self.body,
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)
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return (
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self.heading_path,
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self.exact_term,
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self.page_title,
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self.mode_boost,
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self.body,
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)
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@dataclass
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class QueryResult:
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query: str
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mode: str
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matches: list[QueryMatch]
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prelude: list[Section]
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def normalize(value: str) -> str:
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return unicodedata.normalize("NFKC", value).casefold()
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def _slug(value: str) -> str:
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normalized = normalize(value)
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slug = re.sub(r"[^\w]+", "-", normalized, flags=re.UNICODE).strip("-_")
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return slug or "section"
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def section_id(relative_page: Path | str, heading_path: tuple[str, ...]) -> str:
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page = Path(relative_page)
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parts = [_slug(page.with_suffix("").as_posix()), *(_slug(item) for item in heading_path)]
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return "--".join(parts)
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def _reference_pages(references_dir: Path) -> list[Path]:
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return [
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page
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for page in sorted(references_dir.glob("*.md"), key=lambda item: item.name)
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if page.name not in EXCLUDED_REFERENCE_FILES
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]
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def _heading_records(lines: list[str]) -> tuple[str, list[tuple[int, int, str]]]:
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page_title = ""
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records: list[tuple[int, int, str]] = []
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in_fence = False
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for index, line in enumerate(lines):
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if FENCE_RE.match(line.rstrip("\r\n")):
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in_fence = not in_fence
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continue
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if in_fence:
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continue
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match = HEADING_RE.match(line.rstrip("\r\n"))
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if not match:
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continue
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level = len(match.group(1))
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title = match.group(2)
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if level == 1 and not page_title:
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page_title = title
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elif level in (2, 3):
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records.append((index, level, title))
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return page_title, records
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def _associated_identity(lines: list[str], opening_fence: int) -> str | None:
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previous = opening_fence - 1
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while previous >= 0 and not lines[previous].strip():
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previous -= 1
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while previous >= 0 and lines[previous].strip().startswith(BLOCK_DESCRIPTION_PREFIX):
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previous -= 1
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while previous >= 0 and not lines[previous].strip():
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previous -= 1
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if previous < 0:
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return None
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metadata = lines[previous].strip()
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if not metadata.startswith(IDENTITY_PREFIX):
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return None
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identity = metadata[len(IDENTITY_PREFIX) :].strip()
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earlier = previous - 1
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while earlier >= 0 and not lines[earlier].strip():
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earlier -= 1
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if earlier >= 0 and lines[earlier].strip().startswith(IDENTITY_PREFIX):
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return None
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return identity if identity in ALLOWED_IDENTITIES else None
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def _identities(body: str) -> tuple[str, ...]:
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identities: list[str] = []
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lines = body.splitlines()
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in_fence = False
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for index, line in enumerate(lines):
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if not FENCE_RE.match(line):
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continue
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if not in_fence:
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identity = _associated_identity(lines, index)
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if identity is not None:
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identities.append(identity)
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in_fence = not in_fence
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return tuple(identities)
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def load_sections(references_dir: Path = DEFAULT_REFERENCES_DIR) -> list[Section]:
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sections: list[Section] = []
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id_counts: dict[str, int] = {}
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for page in _reference_pages(Path(references_dir)):
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text = page.read_text(encoding="utf-8")
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lines = text.splitlines(keepends=True)
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page_title, headings = _heading_records(lines)
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h2_title = ""
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for position, (start, level, title) in enumerate(headings):
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if level == 2:
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h2_title = title
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heading_path = (title,)
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else:
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heading_path = (h2_title, title) if h2_title else (title,)
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end = len(lines)
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for next_start, next_level, _ in headings[position + 1 :]:
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if next_level <= level:
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end = next_start
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break
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body = "".join(lines[start:end])
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base_id = section_id(page.relative_to(references_dir), heading_path)
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id_counts[base_id] = id_counts.get(base_id, 0) + 1
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unique_id = base_id
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if id_counts[base_id] > 1:
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unique_id = f"{base_id}-{id_counts[base_id]}"
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searchable_text = normalize(
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"\n".join((page.stem, page_title, *heading_path, body))
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)
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sections.append(
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Section(
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id=unique_id,
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page=page,
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page_title=page_title,
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heading_path=heading_path,
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body=body,
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identities=_identities(body),
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searchable_text=searchable_text,
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)
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)
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return sections
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def _identity_problems(page: Path, lines: list[str]) -> list[ValidationProblem]:
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problems: list[ValidationProblem] = []
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for index, line in enumerate(lines, start=1):
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stripped = line.strip()
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if stripped.startswith(IDENTITY_PREFIX):
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identity = stripped[len(IDENTITY_PREFIX) :].strip()
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if identity not in ALLOWED_IDENTITIES:
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problems.append(ValidationProblem(page, index, f"未知身份：{identity}"))
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in_fence = False
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for index, line in enumerate(lines):
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if FENCE_RE.match(line):
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if in_fence:
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in_fence = False
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else:
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if _associated_identity(lines, index) is None:
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problems.append(
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ValidationProblem(
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page, index + 1, "每个代码围栏必须关联恰好一个代码块身份"
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)
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)
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in_fence = True
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continue
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if not in_fence and SUSPICIOUS_FENCE_RE.match(line):
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problems.append(
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ValidationProblem(
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page, index + 1, "不支持的代码围栏形态（缩进围栏或四个及以上反引号）"
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)
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)
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if in_fence:
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problems.append(ValidationProblem(page, len(lines), "代码围栏未闭合"))
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return problems
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def _local_link_problems(
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page: Path, text: str, references_dir: Path
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) -> list[ValidationProblem]:
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problems: list[ValidationProblem] = []
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# Blank out fenced/inline code without changing line offsets, so reported
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# line numbers line up with the original file.
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without_fences = re.sub(
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r"```.*?```",
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lambda match: re.sub(r"[^\n]", " ", match.group(0)),
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text,
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flags=re.DOTALL,
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)
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searchable_markdown = re.sub(
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r"`[^`\n]*`", lambda match: " " * len(match.group(0)), without_fences
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)
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for match in MARKDOWN_LINK_RE.finditer(searchable_markdown):
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target = match.group(1).strip().split(maxsplit=1)[0].strip("<>")
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if target.startswith(("#", "http://", "https://", "mailto:")):
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continue
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target_path = unquote(target.split("#", 1)[0].replace("\\", "/"))
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resolved = (page.parent / target_path).resolve()
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try:
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resolved.relative_to(references_dir.resolve())
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except ValueError:
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exists = False
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else:
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exists = resolved.is_file()
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if not exists:
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line = searchable_markdown.count("\n", 0, match.start()) + 1
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problems.append(ValidationProblem(page, line, f"本地链接不存在：{target}"))
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return problems
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def validate_references(
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references_dir: Path = DEFAULT_REFERENCES_DIR,
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) -> list[ValidationProblem]:
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references_dir = Path(references_dir)
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problems: list[ValidationProblem] = []
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index_page = references_dir / "index.md"
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if index_page.exists():
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problems.append(ValidationProblem(index_page, 1, "references 中不得保留 index.md"))
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for page in sorted(references_dir.glob("*.md"), key=lambda item: item.name):
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text = page.read_text(encoding="utf-8")
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lines = text.splitlines()
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problems.extend(_identity_problems(page, lines))
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problems.extend(_local_link_problems(page, text, references_dir))
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for phrase in ROUTER_PHRASES:
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for index, line in enumerate(lines, start=1):
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if phrase in line:
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problems.append(
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ValidationProblem(page, index, f"包含人工路由协议：{phrase}")
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)
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sections = load_sections(references_dir)
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ids: dict[str, Section] = {}
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for section in sections:
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if section.id in ids:
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problems.append(ValidationProblem(section.page, 1, f"重复 section ID：{section.id}"))
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ids[section.id] = section
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for page_name, heading in WRITE_PRELUDE_ANCHORS:
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page_sections = [
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section for section in sections if section.page.name == page_name
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]
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# Only enforce the anchor when the page is present, so validating a
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# synthetic references dir (tests) does not demand the bundled pages.
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if page_sections and not any(
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heading in section.heading_path for section in page_sections
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):
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problems.append(
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ValidationProblem(
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references_dir / page_name,
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1,
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f"write 模式前置章节缺失：{page_name} 的「{heading}」",
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)
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)
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return problems
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def query_tokens(text: str) -> set[str]:
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normalized = normalize(text)
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tokens = set(ASCII_TOKEN_RE.findall(normalized))
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for run in CHINESE_RUN_RE.findall(normalized):
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tokens.add(run)
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tokens.update(run[index : index + 2] for index in range(len(run) - 1))
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return {token for token in tokens if token.strip()}
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def _has_chinese_context(section: Section, query: str) -> bool:
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runs = CHINESE_RUN_RE.findall(normalize(query))
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for run in runs:
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tokens = (
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[run]
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if len(run) < 2
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else [run[index : index + 2] for index in range(len(run) - 1)]
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)
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matched = sum(token in section.searchable_text for token in tokens)
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if matched >= (len(tokens) + 1) // 2:
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return True
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return not runs
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def _code_text(body: str) -> str:
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inline = INLINE_CODE_RE.findall(body)
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fenced = FENCED_CODE_RE.findall(body)
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return normalize("\n".join((*inline, *fenced)))
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def _score_section(section: Section, query: str, mode: str) -> ScoreBreakdown:
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normalized_query = normalize(query).strip()
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tokens = query_tokens(query)
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heading_text = normalize("\n".join(section.heading_path))
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page_title_text = normalize(section.page_title)
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body_text = normalize(section.body)
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term_text = _code_text(section.body)
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heading_score = 0
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term_score = 0
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page_title_score = 0
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body_score = 0
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for token in tokens:
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if token in heading_text:
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heading_score += HEADING_TOKEN_SCORE
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if token in term_text:
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term_score += TERM_TOKEN_SCORE
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if token in page_title_text:
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page_title_score += PAGE_TITLE_TOKEN_SCORE
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if token in body_text:
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body_score += BODY_TOKEN_SCORE
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if normalized_query and normalized_query in heading_text:
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heading_score += HEADING_EXACT_SCORE
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if normalized_query and normalized_query in term_text:
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term_score += TERM_EXACT_SCORE
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if normalized_query and normalized_query in page_title_text:
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page_title_score += PAGE_TITLE_EXACT_SCORE
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if normalized_query and normalized_query in body_text:
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body_score += BODY_EXACT_SCORE
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mode_boost = 0
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if mode == "write" and "可直接照写示例" in section.identities:
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mode_boost += DIRECT_EXAMPLE_BOOST
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if mode == "diagnose":
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if section.page.name == "11_pitfalls.md":
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mode_boost += PITFALL_PAGE_BOOST
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if "反例 / 不可照写" in section.identities:
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mode_boost += COUNTEREXAMPLE_BOOST
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if normalized_query and normalized_query in section.searchable_text:
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mode_boost += EXACT_ERROR_BOOST
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return ScoreBreakdown(
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heading_path=heading_score,
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exact_term=term_score,
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page_title=page_title_score,
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body=body_score,
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mode_boost=mode_boost,
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diagnose_priority=mode == "diagnose",
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)
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def _write_prelude(sections: list[Section]) -> list[Section]:
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prelude: list[Section] = []
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for page_name, heading in WRITE_PRELUDE_ANCHORS:
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match = next(
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(
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section
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for section in sections
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if section.page.name == page_name and heading in section.heading_path
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),
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None,
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)
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if match is not None:
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prelude.append(match)
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return prelude
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STRING_LITERAL_RE = re.compile(r'"[^"\n]*"|\'[^\'\n]*\'')
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def _bare_tokens(tokens: set[str]) -> set[str]:
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# ASCII_TOKEN_RE 的连续字符类会把尾缀符号吞进 token（如编译开关
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# `{$varByRef-}` 产出 `varbyref-`）；按剥掉尾部符号的裸形态比较。
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return {token.rstrip(".$:+-") for token in tokens} - {""}
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def _ascii_anchor(section: Section, ascii_tokens: set[str]) -> bool:
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# 只有足够长的标识符按标识符位置命中（标题、行内代码或剥离字符串
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# 字面量后的围栏代码）才豁免中文门控；短 token 与字符串样例数据
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# （如 "XYZ"、"xyz*"）不算点名，避免样例值驱动召回。
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anchor_tokens = {
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token for token in _bare_tokens(ascii_tokens) if len(token) >= 4
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||
}
|
||
if not anchor_tokens:
|
||
return False
|
||
heading_tokens = set(
|
||
ASCII_TOKEN_RE.findall(normalize("\n".join(section.heading_path)))
|
||
)
|
||
code_text = "\n".join(
|
||
(*INLINE_CODE_RE.findall(section.body), *FENCED_CODE_RE.findall(section.body))
|
||
)
|
||
code_tokens = set(
|
||
ASCII_TOKEN_RE.findall(normalize(STRING_LITERAL_RE.sub(" ", code_text)))
|
||
)
|
||
return bool(anchor_tokens & _bare_tokens(heading_tokens | code_tokens))
|
||
|
||
|
||
def _related_sections(a: Section, b: Section) -> bool:
|
||
if a.page != b.page or len(a.heading_path) == len(b.heading_path):
|
||
return False
|
||
shorter, longer = sorted((a.heading_path, b.heading_path), key=len)
|
||
return longer[: len(shorter)] == shorter
|
||
|
||
|
||
def query_sections(
|
||
query: str,
|
||
mode: str,
|
||
limit: int = 5,
|
||
references_dir: Path = DEFAULT_REFERENCES_DIR,
|
||
) -> QueryResult:
|
||
if mode not in {"write", "diagnose", "explain"}:
|
||
raise ValueError(f"unsupported mode: {mode}")
|
||
if not 1 <= limit <= 10:
|
||
raise ValueError("limit must be between 1 and 10")
|
||
all_sections = load_sections(references_dir)
|
||
sections = all_sections
|
||
ascii_tokens = {
|
||
token for token in query_tokens(query) if ASCII_TOKEN_RE.fullmatch(token)
|
||
}
|
||
if ascii_tokens:
|
||
sections = [
|
||
section
|
||
for section in sections
|
||
if any(token in section.searchable_text for token in ascii_tokens)
|
||
]
|
||
has_chinese = bool(CHINESE_RUN_RE.search(normalize(query)))
|
||
minimum_score = MIXED_QUERY_MIN_SCORE if ascii_tokens and has_chinese else 1
|
||
ranked: list[QueryMatch] = []
|
||
for section in sections:
|
||
# 中文上下文门控只裁剪正文级 ASCII 噪声；标识符在标题或代码里
|
||
# 精确命中的 section 不因中文措辞不同而被丢弃。
|
||
if (
|
||
ascii_tokens
|
||
and has_chinese
|
||
and not _ascii_anchor(section, ascii_tokens)
|
||
and not _has_chinese_context(section, query)
|
||
):
|
||
continue
|
||
score = _score_section(section, query, mode)
|
||
if score.lexical_total < minimum_score:
|
||
continue
|
||
ranked.append(QueryMatch(section, score.total, score.priority))
|
||
ranked.sort(
|
||
key=lambda match: (
|
||
*(-value for value in match.priority),
|
||
match.section.page.as_posix(),
|
||
match.section.id,
|
||
)
|
||
)
|
||
# H2 聚合 section 的正文逐字包含其 H3 子节；父子同时入选时只保留
|
||
# 排名更高的一个，避免同一内容重复返回。
|
||
matches: list[QueryMatch] = []
|
||
for match in ranked:
|
||
if any(
|
||
_related_sections(match.section, kept.section) for kept in matches
|
||
):
|
||
continue
|
||
matches.append(match)
|
||
if len(matches) == limit:
|
||
break
|
||
prelude = _write_prelude(all_sections) if mode == "write" else []
|
||
match_ids = {match.section.id for match in matches}
|
||
prelude = [section for section in prelude if section.id not in match_ids]
|
||
return QueryResult(query=query, mode=mode, matches=matches, prelude=prelude)
|
||
|
||
|
||
def render_result(result: QueryResult) -> str:
|
||
lines = [
|
||
"# TSL Syntax Lookup",
|
||
"",
|
||
f"Mode: `{result.mode}`",
|
||
f"Query: {result.query}",
|
||
]
|
||
if result.prelude:
|
||
lines.extend(["", "## Required context"])
|
||
for section in result.prelude:
|
||
lines.extend(
|
||
[
|
||
"",
|
||
f"Section ID: `{section.id}`",
|
||
f"Source: `{section.page.as_posix()}`",
|
||
"",
|
||
section.body.rstrip(),
|
||
]
|
||
)
|
||
for index, match in enumerate(result.matches, start=1):
|
||
lines.extend(
|
||
[
|
||
"",
|
||
f"## Match {index}",
|
||
"",
|
||
f"Score: {match.score}",
|
||
f"Section ID: `{match.section.id}`",
|
||
f"Source: `{match.section.page.as_posix()}`",
|
||
"",
|
||
match.section.body.rstrip(),
|
||
]
|
||
)
|
||
lines.extend(["", "## Narrower section IDs"])
|
||
lines.extend(f"- `{match.section.id}`" for match in result.matches)
|
||
return "\n".join(lines).rstrip() + "\n"
|
||
|
||
|
||
def _configure_utf8() -> None:
|
||
for stream in (sys.stdout, sys.stderr):
|
||
reconfigure = getattr(stream, "reconfigure", None)
|
||
if reconfigure is not None:
|
||
reconfigure(encoding="utf-8")
|
||
|
||
|
||
def _parser() -> argparse.ArgumentParser:
|
||
parser = argparse.ArgumentParser(description="Search TSL syntax reference sections")
|
||
action = parser.add_mutually_exclusive_group(required=True)
|
||
action.add_argument("--query")
|
||
action.add_argument("--section")
|
||
action.add_argument("--check", action="store_true")
|
||
parser.add_argument("--mode", choices=("write", "diagnose", "explain"))
|
||
parser.add_argument("--limit", type=int, default=5)
|
||
parser.add_argument("--references-dir", type=Path, default=DEFAULT_REFERENCES_DIR)
|
||
return parser
|
||
|
||
|
||
def _nearest_section_ids(
|
||
requested: str, sections: list[Section], limit: int = 5
|
||
) -> list[str]:
|
||
ranked = sorted(
|
||
sections,
|
||
key=lambda section: (
|
||
-difflib.SequenceMatcher(None, requested, section.id).ratio(),
|
||
section.id,
|
||
),
|
||
)
|
||
return [section.id for section in ranked[:limit]]
|
||
|
||
|
||
def main(argv: list[str] | None = None) -> int:
|
||
_configure_utf8()
|
||
parser = _parser()
|
||
args = parser.parse_args(argv)
|
||
if not 1 <= args.limit <= 10:
|
||
parser.error("--limit must be between 1 and 10")
|
||
if args.query is not None and args.mode is None:
|
||
parser.error("--mode is required with --query")
|
||
if args.mode is not None and args.query is None:
|
||
parser.error("--mode only applies to --query")
|
||
if args.check:
|
||
problems = validate_references(args.references_dir)
|
||
for problem in problems:
|
||
print(f"{problem.page}:{problem.line}: {problem.message}", file=sys.stderr)
|
||
return 1 if problems else 0
|
||
if args.section is not None:
|
||
sections = load_sections(args.references_dir)
|
||
section = next(
|
||
(item for item in sections if item.id == args.section),
|
||
None,
|
||
)
|
||
if section is None:
|
||
print(f"section not found: {args.section}", file=sys.stderr)
|
||
print("Nearest section IDs:", file=sys.stderr)
|
||
for candidate in _nearest_section_ids(args.section, sections):
|
||
print(f"- {candidate}", file=sys.stderr)
|
||
return 2
|
||
result = QueryResult("", "section", [QueryMatch(section, 0)], [])
|
||
else:
|
||
result = query_sections(args.query, args.mode, args.limit, args.references_dir)
|
||
if not result.matches:
|
||
print("no matching sections", file=sys.stderr)
|
||
return 2
|
||
print(render_result(result), end="")
|
||
return 0
|
||
|
||
|
||
if __name__ == "__main__":
|
||
raise SystemExit(main())
|