lanyuanxiaoyao
9daff73589
- 更新 openspec/config.yaml 中 git 任务相关说明 - 将 scripts.core.* 改为 core.*，scripts.readers.* 改为 readers.* - 优化 lyxy_document_reader.py 中 sys.path 设置方式 - 同步更新所有测试文件的导入路径
57 lines
1.5 KiB
Python
57 lines
1.5 KiB
Python
"""PDF 文件阅读器，支持多种解析方法（OCR 优先）。"""
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import os
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from typing import List, Optional, Tuple
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from readers.base import BaseReader
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from utils import is_valid_pdf
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from . import docling_ocr
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from . import unstructured_ocr
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from . import docling
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from . import unstructured
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from . import markitdown
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from . import pypdf
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PARSERS = [
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("docling OCR", docling_ocr.parse),
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("unstructured OCR", unstructured_ocr.parse),
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("docling", docling.parse),
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("unstructured", unstructured.parse),
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("MarkItDown", markitdown.parse),
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("pypdf", pypdf.parse),
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]
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class PdfReader(BaseReader):
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"""PDF 文件阅读器"""
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def supports(self, file_path: str) -> bool:
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return file_path.lower().endswith('.pdf')
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def parse(self, file_path: str) -> Tuple[Optional[str], List[str]]:
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failures = []
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# 检查文件是否存在
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if not os.path.exists(file_path):
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return None, ["文件不存在"]
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# 验证文件格式
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if not is_valid_pdf(file_path):
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return None, ["不是有效的 PDF 文件"]
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content = None
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for parser_name, parser_func in PARSERS:
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try:
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content, error = parser_func(file_path)
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if content is not None:
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return content, failures
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else:
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failures.append(f"- {parser_name}: {error}")
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except Exception as e:
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failures.append(f"- {parser_name}: [意外异常] {type(e).__name__}: {str(e)}")
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return None, failures
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