驼峰与小写互转

驼峰转小写

#!/usr/bin/python
# -*- encoding: utf-8 -*-
"""
@Author: apophis
@File: camel_to_lower_underscore.py
@Time: 2023/9/27 8:33
@Description: 工程描述
"""
import re


def run(name):
    """
    将驼峰命名转为小写字母、下划线和数字组成的名称
    :param name:
    :return:
    """
    # 将驼峰命名转为小写字母、下划线和数字组成的名称
    name = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', name)  # 将大写字母前面加上下划线
    name = re.sub('([a-z0-9])([A-Z])', r'\1_\2', name)  # 将大写字母转为小写，并在前面加上下划线
    name = re.sub('(^[0-9]+)(.+)', r'\2_\1', name)  # 将字母和数字位置互换，并在中间加上下划线 仅针对以数字开头的情况
    name = re.sub('__+', '_', name)  # 将连续的下划线替换为单个下划线
    name = name.strip("_")  # 去除开头和结尾的下划线
    name = name.lower()  # 将名称转为小写
    name = name.replace(".", "")
    name = "_".join([wd_map.get(_, _) for _ in name.split("_")])
    return name


def read_txt(file):
    with open(file, "r", encoding="utf8") as f:
        return [line.strip("\n") for line in f.readlines()]


def test():
    print(run("camelCaseName"))  # 输出：camel_case_name
    print(run("anotherExample123"))  # 输出：another_example123
    print(run("HTTPRequest"))  # 输出：http_request
    print(run("someURLValue"))  # 输出：some_url_value
    print(run("HTMLParser"))  # 输出：html_parser
    print(run("URLValue"))  # 输出：url_value
    print(run("44lan"))
    print(run("GGLanMdw"))
    print(run("GGLanMdw_GqweGqs"))
    print(run("GGLanMdw_GGqweGqs"))
    print(run("GGLanMdw_qqweGqs"))
    print(run("aaaGGLanMdw_qqweGqs"))
    print(run("aaaGGLan123Mdw_qqweGqs"))
    print(run("AaBbCcDd"))


if __name__ == '__main__':
    for name in read_txt("E:/测试用/1.txt"):
        print(run(name))

小写转驼峰

#!/usr/bin/python
# -*- encoding: utf-8 -*-
"""
@Author: apophis
@File: lower_underscore_to_camel.py
@Time: 2023/9/27 9:56
@Description: 工程描述
"""
import re


def run(name):
    """
    将小写字母、下划线和数字组成的名称转为驼峰命名
    :param name:
    :return:
    """
    name = re.sub('__+', '_', name)  # 将连续的下划线替换为单个下划线
    name = name.strip("_")
    # 将字母和数字位置互换
    arr = [re.sub('(^[0-9]+)(.+)', r'\2\1', _) for _ in name.split("_")]
    # capitalize 将开头的首字母转换成大写
    # 整个字符串的首位不需要转换成大写
    name = "".join([arr[_].lower() if _ == 0 else arr[_].capitalize() for _ in range(len(arr))])
    return name


def read_txt(file):
    with open(file, "r", encoding="utf8") as f:
        return [line.strip("\n") for line in f.readlines()]


def test():
    print(run("1a_2b_3c"))
    print(run("aa_bb_cc"))
    print(run("1a_BBc_3c"))
    print(run("_1a_BBc_3c_"))


if __name__ == '__main__':
    for name in read_txt("E:/测试用/1.txt"):
        print(run(name))