文本预处理3-空一行

1.针对需要空行处理的文本。
2.读取txt文档，将处理后的内容写回原文件。

文本预处理3-空一行
import os
import re


def add_empty_line_before_numbers(text):
    # 正则表达式匹配阿拉伯数字，但排除第一个数字
    pattern = re.compile(r'(?<!^)(\d+)')
    # 使用列表推导式，对每个匹配的数字前添加空行
    result = re.sub(pattern, r'\n\1', text)
    return result


def process_txt_files(folder_path):
    for filename in os.listdir(folder_path):
        if filename.endswith('.txt'):
            file_path = os.path.join(folder_path, filename)
            with open(file_path, 'r', encoding='utf-8') as file:
                content = file.read()
                processed_content = add_empty_line_before_numbers(content)

            # 将处理后的内容写回原文件
            with open(file_path, 'w', encoding='utf-8') as file:
                file.write(processed_content)

            # print(f'Processed content written back to {filename}')


# 替换为你的文件夹路径
folder_path = "C:\\Users\\lenovo\\Desktop"
process_txt_files(folder_path)