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crazy_functions/理解PDF文档内容.py
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137
crazy_functions/理解PDF文档内容.py
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from request_llm.bridge_chatgpt import predict_no_ui
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from toolbox import CatchException, report_execption, write_results_to_file, predict_no_ui_but_counting_down
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import re
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import unicodedata
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fast_debug = False
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def is_paragraph_break(match):
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"""
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根据给定的匹配结果来判断换行符是否表示段落分隔。
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如果换行符前为句子结束标志(句号,感叹号,问号),且下一个字符为大写字母,则换行符更有可能表示段落分隔。
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也可以根据之前的内容长度来判断段落是否已经足够长。
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"""
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prev_char, next_char = match.groups()
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# 句子结束标志
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sentence_endings = ".!?"
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# 设定一个最小段落长度阈值
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min_paragraph_length = 140
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if prev_char in sentence_endings and next_char.isupper() and len(match.string[:match.start(1)]) > min_paragraph_length:
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return "\n\n"
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else:
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return " "
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def normalize_text(text):
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"""
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通过把连字(ligatures)等文本特殊符号转换为其基本形式来对文本进行归一化处理。
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例如,将连字 "fi" 转换为 "f" 和 "i"。
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"""
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# 对文本进行归一化处理,分解连字
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normalized_text = unicodedata.normalize("NFKD", text)
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# 替换其他特殊字符
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cleaned_text = re.sub(r'[^\x00-\x7F]+', '', normalized_text)
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return cleaned_text
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def clean_text(raw_text):
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"""
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对从 PDF 提取出的原始文本进行清洗和格式化处理。
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1. 对原始文本进行归一化处理。
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2. 替换跨行的连词,例如 “Espe-\ncially” 转换为 “Especially”。
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3. 根据 heuristic 规则判断换行符是否是段落分隔,并相应地进行替换。
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"""
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# 对文本进行归一化处理
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normalized_text = normalize_text(raw_text)
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# 替换跨行的连词
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text = re.sub(r'(\w+-\n\w+)', lambda m: m.group(1).replace('-\n', ''), normalized_text)
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# 根据前后相邻字符的特点,找到原文本中的换行符
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newlines = re.compile(r'(\S)\n(\S)')
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# 根据 heuristic 规则,用空格或段落分隔符替换原换行符
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final_text = re.sub(newlines, lambda m: m.group(1) + is_paragraph_break(m) + m.group(2), text)
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return final_text.strip()
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def 解析PDF(file_name, top_p, temperature, chatbot, history, systemPromptTxt):
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import time, glob, os, fitz
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print('begin analysis on:', file_name)
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with fitz.open(file_name) as doc:
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file_content = ""
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for page in doc:
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file_content += page.get_text()
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file_content = clean_text(file_content)
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# print(file_content)
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split_number = 10000
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split_group = (len(file_content)//split_number)+1
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for i in range(0,split_group):
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if i==0:
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prefix = "接下来请你仔细分析下面的论文,学习里面的内容(专业术语、公式、数学概念).并且注意:由于论文内容较多,将分批次发送,每次发送完之后,你只需要回答“接受完成”"
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i_say = prefix + f'文件名是{file_name},文章内容第{i+1}部分是 ```{file_content[i*split_number:(i+1)*split_number]}```'
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i_say_show_user = f'文件名是:\n{file_name},\n由于论文内容过长,将分批请求(共{len(file_content)}字符,将分为{split_group}批,每批{split_number}字符)。\n当前发送{i+1}/{split_group}部分'
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elif i==split_group-1:
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i_say = f'你只需要回答“所有论文接受完成,请进行下一步”。文章内容第{i+1}/{split_group}部分是 ```{file_content[i*split_number:]}```'
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i_say_show_user = f'当前发送{i+1}/{split_group}部分'
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else:
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i_say = f'你只需要回答“接受完成”。文章内容第{i+1}/{split_group}部分是 ```{file_content[i*split_number:(i+1)*split_number]}```'
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i_say_show_user = f'当前发送{i+1}/{split_group}部分'
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chatbot.append((i_say_show_user, "[Local Message] waiting gpt response."))
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gpt_say = yield from predict_no_ui_but_counting_down(i_say, i_say_show_user, chatbot, top_p, temperature, history=[]) # 带超时倒计时
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while "完成" not in gpt_say:
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i_say = f'你只需要回答“接受完成”。文章内容第{i+1}/{split_group}部分是 ```{file_content[i*split_number:(i+1)*split_number]}```'
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i_say_show_user = f'出现error,重新发送{i+1}/{split_group}部分'
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gpt_say = yield from predict_no_ui_but_counting_down(i_say, i_say_show_user, chatbot, top_p, temperature, history=[]) # 带超时倒计时
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time.sleep(1)
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chatbot[-1] = (i_say_show_user, gpt_say)
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history.append(i_say_show_user); history.append(gpt_say)
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yield chatbot, history, '正常'
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time.sleep(2)
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i_say = f'接下来,请你扮演一名专业的学术教授,利用你的所有知识并且结合这篇文章,回答我的问题。(请牢记:1.直到我说“退出”,你才能结束任务;2.所有问题需要紧密围绕文章内容;3.如果有公式,请使用tex渲染)'
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chatbot.append((i_say, "[Local Message] waiting gpt response."))
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yield chatbot, history, '正常'
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# ** gpt request **
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gpt_say = yield from predict_no_ui_but_counting_down(i_say, i_say, chatbot, top_p, temperature, history=history) # 带超时倒计时
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chatbot[-1] = (i_say, gpt_say)
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history.append(i_say); history.append(gpt_say)
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yield chatbot, history, '正常'
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@CatchException
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def 理解PDF文档内容(txt, top_p, temperature, chatbot, history, systemPromptTxt, WEB_PORT):
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import glob, os
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# 基本信息:功能、贡献者
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chatbot.append([
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"函数插件功能?",
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"理解PDF论文内容,并且将结合上下文内容,进行学术解答。函数插件贡献者: Hanzoe。"])
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yield chatbot, history, '正常'
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import tkinter as tk
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from tkinter import filedialog
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root = tk.Tk()
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root.withdraw()
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txt = filedialog.askopenfilename()
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# 尝试导入依赖,如果缺少依赖,则给出安装建议
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try:
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import fitz
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except:
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report_execption(chatbot, history,
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a = f"解析项目: {txt}",
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b = f"导入软件依赖失败。使用该模块需要额外依赖,安装方法```pip install --upgrade pymupdf```。")
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yield chatbot, history, '正常'
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return
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# 清空历史,以免输入溢出
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history = []
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# 开始正式执行任务
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yield from 解析PDF(txt, top_p, temperature, chatbot, history, systemPromptTxt)
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