332 lines
19 KiB
Python
332 lines
19 KiB
Python
import fitz
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from PyPDF2 import PdfReader
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import regex # 导入正则表达式库
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import os # 用于文件和文件夹操作
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from flask_app.general.读取文件.clean_pdf import clean_page_content
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from flask_app.general.merge_pdfs import merge_and_cleanup
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from flask_app.general.截取pdf通用函数 import get_start_and_common_header, save_extracted_pages, is_pdf_or_doc, \
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get_invalid_file, extract_pages_tobidders_notice, extract_pages_generic, get_notice, create_get_text_function
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from flask_app.general.通用功能函数 import get_global_logger
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def extract_pages(pdf_path, output_folder, begin_pattern, begin_page, end_pattern, common_header,output_suffix,logger,invalid_endpage=-1):
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try:
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exclusion_pattern = regex.compile(
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r'(文件的构成|文件的组成|文件组成|文件构成|文件的编制|文件编制)\s*$', regex.MULTILINE)
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start_page, end_page = extract_pages_generic(pdf_path, begin_pattern, end_pattern, begin_page,
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common_header, exclusion_pattern, output_suffix,invalid_endpage)
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if start_page is None or end_page is None:
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print(f"first: {output_suffix} 未找到起始或结束页在文件 {pdf_path} 中！尝试备用提取策略。")
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return extract_pages_twice(pdf_path, output_folder, output_suffix, common_header, begin_page,logger)
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elif output_suffix == "qualification1":
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truncate_pdf_main_goods(pdf_path, output_folder, 2, logger,"qualification3") # 合并'资格审查'章节和'评标办法'章节
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return save_extracted_pages(pdf_path, output_folder,start_page, end_page, output_suffix,common_header)
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except Exception as e:
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print(f"Error processing {pdf_path}: {e}")
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return ""
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def get_patterns_for_procurement():
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begin_pattern = regex.compile(
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r'(?<!对应\s*)(?<!根据\s*)(?<!按照\s*)(?<!见\s*)(?<!与\s*)(?<!同\s*)(?<!"\s*)(?<!“\s*)(?<!”\s*)'
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r'第[一二三四五六七八九十1-9]+(?:章|部分)\s*(?!.*说明)' # 匹配“第X章”或“第X部分”
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r'[\u4e00-\u9fff、()（）]*?' # 匹配允许的字符
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r'(?:(?:服务|项目|商务|技术|供货)[\u4e00-\u9fff、()（）]*?要求[\u4e00-\u9fff、()（）]*?\s*$|' # 匹配“服务”、“项目”、“商务”或“技术”后跟“要求”
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r'(?:采购.*?(?:内容|要求|需求)|(招标|项目|货物)(?:内容|要求|需求))[\u4e00-\u9fff、()（）]*?|'
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r'需求书[\u4e00-\u9fff、()（）]*?)\s*$',
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regex.MULTILINE
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)
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end_pattern = regex.compile(r'(?<!对应\s*)(?<!根据\s*)(?<!按照\s*)(?<!见\s*)(?<!与\s*)(?<!同\s*)(?<!"\s*)(?<!“\s*)(?<!”\s*)第[一二三四五六七八九1-9]+(?:章|部分)\s*[\u4e00-\u9fff、()（）]+\s*$', regex.MULTILINE)
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return begin_pattern, end_pattern
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# """
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# 第四章
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# 评标
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# """ 也能匹配上
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def get_patterns_for_evaluation_method():
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begin_pattern = regex.compile(
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r'(?:(?<!见\s*)(?<!与\s*)(?<!同\s*)(?<!对应\s*)(?<!根据\s*)(?<!按照\s*)(?<!"\s*)(?<!“\s*)(?<!“\s*)第[一二三四五六七八九十1-9]+(?:章|部分)\s*' # 第一种模式
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r'(?<!"\s*)(?<!“\s*)(?<!”\s*)(?:[\u4e00-\u9fff、()（）]*?)'
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r'(?=.*(?:(?:磋商|谈判)(?=.*(?:办法|方法|内容))|(?:评标|评定|评审)))'
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r'[\u4e00-\u9fff、()（）]*\s*$|'
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r'^\s*(?<!见\s*)(?<!与\s*)(?<!同\s*)(?<!对应\s*)(?<!根据\s*)(?<!按照\s*)(?<!"\s*)(?<!“\s*)(?<!“\s*)评标(方法|办法)(?:前附表)?\s*$)', # 第二种模式
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regex.MULTILINE
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)
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end_pattern = regex.compile(
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r'(?<!对应\s*)(?<!根据\s*)(?<!按照\s*)(?<!见\s*)(?<!与\s*)(?<!同\s*)(?<!"\s*)(?<!“\s*)(?<!”\s*)第[一二三四五六七八九十1-9]+(?:章|部分)\s*[\u4e00-\u9fff、()（）]+\s*$', regex.MULTILINE)
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return begin_pattern, end_pattern
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def extract_pages_qualification(pdf_path, begin_page, common_header):
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# 开始匹配模式，仅匹配“附录”、“附件”或“附表”
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begin_pattern = regex.compile(
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r'^(?:附录(?:一|1)?[：:]?|附件(?:一|1)?[：:]?|附表(?:一|1)?[：:]?)(?!的)',
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regex.MULTILINE
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)
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# 优先匹配模式，匹配以“资格性检查”、“资格审查”或“符合性审查”开头
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priority_pattern = regex.compile(
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r'^((资格|符合|资格性|符合性)(、(资格|符合|资格性|符合性))*)(检查|审查)(?:表|比对表|对照表)?\s*$',
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regex.MULTILINE
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)
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# 结束匹配模式 - 附录、附件、附表等
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end_pattern_attachment = regex.compile(
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r'^(?:附录(?!的).*?|附件(?!的).*?|附表(?!的).*?|附件\s*\d+(?!的)).*',
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regex.MULTILINE
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)
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# 结束匹配模式 - 章节标题
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end_pattern_chapter = regex.compile(
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r'(?<!对应\s*)(?<!根据\s*)(?<!按照\s*)(?<!见\s*)(?<!与\s*)(?<!同\s*)(?<!"\s*)(?<!“\s*)(?<!”\s*)第[一二三四五六七八九十百千]+(?:章|部分)\s*[\u4e00-\u9fff、()（）]+\s*$',
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regex.MULTILINE
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)
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print("第二次尝试 qualification:匹配附件")
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start_page = None
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end_page = None
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include_keywords = ["资格审查", "资质审查", "符合性审查","资格性审查", "符合性检查","资格性检查", "资格检查"]
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exclude_keywords = ["声明函", "承诺函"]
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pdf_document = None
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try:
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try:
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# 尝试使用 PyPDF2 读取 PDF
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pdf_document = PdfReader(pdf_path)
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total_pages = len(pdf_document.pages)
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get_text = create_get_text_function('pypdf2', pdf_document)
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# print("使用 PyPDF2 成功读取 PDF 文件。")
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except Exception as e_pypdf2:
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print(f"extract_pages_qualification:使用 PyPDF2 读取 PDF 失败: {e_pypdf2}")
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try:
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# 如果 PyPDF2 失败，尝试使用 PyMuPDF 读取 PDF
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pdf_document = fitz.open(pdf_path)
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total_pages = pdf_document.page_count
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get_text = create_get_text_function('fitz', pdf_document)
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# print("使用 PyMuPDF 成功读取 PDF 文件。")
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except Exception as e_fitz:
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print(f"使用 PyMuPDF 读取 PDF 也失败: {e_fitz}")
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return None, None # 或者根据需求抛出异常
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# 从指定的开始页开始遍历
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for i in range(begin_page, total_pages):
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text = get_text(i)
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if text:
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cleaned_text = clean_page_content(text, common_header)
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# 优先检查是否匹配优先模式
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priority_match = priority_pattern.search(cleaned_text)
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if priority_match and start_page is None:
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start_page = i
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print(f"匹配到priority_pattern，设置起始页为: {start_page}")
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continue
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else:
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# 如果未匹配优先模式，则按照一般模式进行判断
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if (
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any(keyword in cleaned_text for keyword in include_keywords) and
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all(keyword not in cleaned_text for keyword in exclude_keywords) and
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start_page is None
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):
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if begin_pattern.search(cleaned_text):
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start_page = i
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print(f"匹配到附录等模式begin_pattern，设置起始页为: {start_page}")
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continue
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# 确定结束页 - 附录、附件、附表等
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if start_page is not None and end_pattern_attachment.search(cleaned_text):
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# 额外检查当前页面是否不包含任何 include_keywords
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if not any(keyword in cleaned_text for keyword in include_keywords):
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if i > start_page:
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end_page = i
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print(f"qualification：找到结束页 (附件类): {end_page}")
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break # 找到结束页后退出循环
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else:
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print(f"当前页面匹配附件结束模式但包含 include_keywords，继续查找。页面: {i}")
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# 确定结束页 - 章节标题
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elif start_page is not None and end_pattern_chapter.search(cleaned_text):
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if i > start_page:
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end_page = i
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print(f"qualification：找到结束页 (章节标题): {end_page}")
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break # 找到结束页后退出循环
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return start_page, end_page
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finally:
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if pdf_document and hasattr(pdf_document, 'close'):
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pdf_document.close()
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def extract_pages_twice(pdf_path, output_folder, output_suffix, common_header, begin_page, logger):
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try:
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exclusion_pattern = regex.compile(
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r'(文件的构成|文件的组成|文件组成|文件构成|文件的编制|文件编制)\s*$', regex.MULTILINE)
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patterns = None
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start_page = None
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end_page = None
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if output_suffix == "procurement":
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patterns = [get_patterns_for_procurement()]
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elif output_suffix == "evaluation_method" or output_suffix == "qualification2" or output_suffix == "qualification3":
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patterns = [get_patterns_for_evaluation_method()]
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elif output_suffix == "qualification1":
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start_page, end_page = extract_pages_qualification(pdf_path, begin_page, common_header)
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if patterns:
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for pattern_pair in patterns:
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start_page, end_page = extract_pages_generic(pdf_path, pattern_pair[0], pattern_pair[1], begin_page,
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common_header, exclusion_pattern, output_suffix)
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if start_page is not None and end_page is not None:
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break
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if start_page is None or end_page is None:
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if output_suffix == "qualification1":
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# print(f"second: {output_suffix} 未找到起始或结束页在文件 {pdf_path} 中！")
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print("第三次尝试资格审查:尝试提取评分办法章节...")
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base_file_name = os.path.splitext(os.path.basename(pdf_path))[0]
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evaluation_method_file = os.path.join(output_folder, f"{base_file_name}_evaluation_method.pdf")
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if os.path.isfile(evaluation_method_file):
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print(f"找到评分办法章节文件: {evaluation_method_file}，生成新文件。")
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# 获取文件路径和文件名
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new_file_name = f"{base_file_name}_qualification2.pdf"
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new_file_path = os.path.join(output_folder, new_file_name)
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# 复制文件
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with open(evaluation_method_file, 'rb') as original_file:
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with open(new_file_path, 'wb') as new_file:
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new_file.write(original_file.read())
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return new_file_path
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else:
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temp = truncate_pdf_main_goods(pdf_path, output_folder, 2,logger, "qualification2")
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if len(temp) > 0:
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return temp[0]
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else:
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return ""
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else:
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print(f"second: {output_suffix} 未找到起始或结束页在文件 {pdf_path} 中！")
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return ""
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return save_extracted_pages(pdf_path, output_folder,start_page, end_page, output_suffix,common_header)
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except Exception as e:
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print(f"Error in extract_pages_twice: {e}")
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return ""
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def truncate_pdf_main_goods(input_path, output_folder, selection,logger, output_suffix="default",invalid_endpage=-1):
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try:
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# Function to handle processing of a single file
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def process_single_file(pdf_path, output_folder, selection, output_suffix):
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try:
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# 创建输出文件夹
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if not os.path.exists(output_folder):
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os.makedirs(output_folder)
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# 获取起始和通用页眉
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common_header, last_begin_index = get_start_and_common_header(pdf_path, 20)
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begin_page = last_begin_index if last_begin_index != -1 else {
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4: 0,
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2: 5,
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3: 5,
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1: 0,
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5: 3,
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6: 0 # Added default for selection 6 if needed
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}.get(selection, 0)
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# 根据选择设置对应的模式和结束模式
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if selection == 1: #招标公告
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path=get_notice(pdf_path, output_folder, begin_page,common_header, invalid_endpage)
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return [path or ""]
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elif selection == 2: #评标方法
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begin_pattern = regex.compile(
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r'^第[一二三四五六七八九十]+(?:章|部分)\s*'
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r'(?<!"\s*)(?<!“\s*)(?<!”\s*)(?=.*(?:磋商(?=.*(?:办法|方法|内容))|'
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r'谈判(?=.*(?:办法|方法|内容))|评标|评定|评审))',
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regex.MULTILINE
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)
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end_pattern = regex.compile(
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r'^第[一二三四五六七八九十百千]+(?:章|部分)\s*[\u4e00-\u9fff]+',regex.MULTILINE
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)
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local_output_suffix = "evaluation_method"
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elif selection == 3: #资格审查
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begin_pattern = regex.compile(
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r'^第[一二三四五六七八九十百千]+(?:章|部分).*?(资格审查).*', regex.MULTILINE
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)
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end_pattern = regex.compile(
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r'^第[一二三四五六七八九十百千]+(?:章|部分)\s*[\u4e00-\u9fff]+', regex.MULTILINE
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)
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local_output_suffix = "qualification1"
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elif selection == 4: #投标人须知：前附表+须知正文
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path1, path2 = extract_pages_tobidders_notice(pdf_path, output_folder, begin_page, common_header, invalid_endpage)
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return [path1 or "", path2 or ""]
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elif selection == 5: #采购需求 #第x章 招标需求 /项目需求 /货物需求...
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begin_pattern = regex.compile(
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r'^第[一二三四五六七八九十百千]+(?:章|部分).*?(?:服务|项目|商务|技术|供货).*?要求|'
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r'^第[一二三四五六七八九十百千]+(?:章|部分)(?!.*说明).*(?:采购.*?(?:内容|要求|需求)|(招标|项目|货物)(?:内容|要求|需求)).*|'
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r'^第[一二三四五六七八九十百千]+(?:章|部分).*?需求书'
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)
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end_pattern = regex.compile(
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r'^第[一二三四五六七八九十百千]+(?:章|部分)\s*[\u4e00-\u9fff]+',regex.MULTILINE
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)
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local_output_suffix = "procurement"
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elif selection == 6: #除去投标文件格式之前的内容 或者 合同条款之前的内容
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invalid_path, end_page = get_invalid_file(pdf_path, output_folder, common_header, begin_page)
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return [invalid_path or "", end_page]
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else:
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print("无效的选择:请选择1-6")
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return ['']
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# 如果传入的 output_suffix 是 'default'，则使用本地生成的 output_suffix
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if output_suffix == "default":
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output_suffix = local_output_suffix
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result = extract_pages(
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pdf_path,
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output_folder,
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begin_pattern,
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begin_page,
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end_pattern,
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common_header,
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output_suffix,
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logger,
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invalid_endpage
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)
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# 根据提取结果以及不同的 output_suffix 进行处理
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if result:
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if output_suffix == "qualification1":
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merge_and_cleanup(result, "qualification3")
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return [result or ""]
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else:
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return [result]
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return [""]
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except Exception as e:
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logger.error(f"Error in processing file '{pdf_path}': {e}")
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return [""] * (2 if selection == 4 else 1)
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# 检查是否为文件夹
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if os.path.isdir(input_path):
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generated_files = []
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for file_name in os.listdir(input_path):
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if file_name.endswith('.pdf'):
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pdf_path = os.path.join(input_path, file_name)
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result = process_single_file(pdf_path, output_folder, selection, output_suffix)
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if isinstance(result, tuple):
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generated_files.extend([f if f else "" for f in result])
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else:
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generated_files.append(result)
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return generated_files
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# 单文件情况
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elif os.path.isfile(input_path) and is_pdf_or_doc(input_path):
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return process_single_file(input_path, output_folder, selection, output_suffix)
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else:
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logger.error("提供的路径既不是文件夹也不是PDF文件。")
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return [""] * (2 if selection == 4 else 1)
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except Exception as e:
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logger.error(f"Error in truncate_pdf_main_goods: {e}")
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return [""] * (2 if selection == 4 else 1) # 返回空字符串
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# TODO:交通智能系统和招标(1)(1)文件有问题 包头 绍兴 工程标中，判断是符合性审查之后，可以将它们设为同一章
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#TODO: 验证所有文件的切分逻辑。
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# ztbfile.pdf少资格评审 包头少符合性评审
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if __name__ == "__main__":
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logger = get_global_logger("123")
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# input_path = r"C:\Users\Administrator\Desktop\new招标文件\货物标"
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# pdf_path = r"C:\Users\Administrator\Desktop\招标文件-采购类\2024-贵州-贵州医科大学附属医院导视系统零星制作安装项目.pdf"
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pdf_path=r"C:\Users\Administrator\Desktop\fsdownload\2c3e2291-6804-4ef0-b4a8-6f457edd5709\ztbfile.pdf"
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# input_path = r"C:\Users\Administrator\Desktop\货物标\zbfiles\2-招标文件（广水市教育局封闭管理）.pdf"
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# pdf_path=r"C:\Users\Administrator\Desktop\文件解析问题\文件解析问题\1414cb9c-7bf4-401c-8761-2acde151b9c2\ztbfile.pdf"
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output_folder = r"C:\Users\Administrator\Desktop\货物标\output4"
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# output_folder = r"C:\Users\Administrator\Desktop\new招标文件\output2"
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selection = 4 # 例如：1 - 公告 notice , 2 - 评标办法 evaluation_method, 3 - 资格审查后缀有qualification1或qualification2（与评标办法一致） 4.投标人须知前附表part1 投标人须知正文part2 5-采购需求 procurement 6-invalid
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generated_files = truncate_pdf_main_goods(pdf_path, output_folder, selection,logger)
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print(generated_files)
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