#!/usr/bin/env python
# -*- coding:utf-8 -*-

# file:python_sqla_codegen
# author:PigKnight
# datetime:2021年8月21日 11:28
# software: PyCharm

"""
 General method
"""


# 连字符转驼峰
def str_format_convert(string):
 new_string = ''
 for word in string.split('_'):
 if new_string:
 new_string += word.lower().capitalize()
 else:
 new_string = word
 return new_string


# 字符串转全小写
def str_to_all_small(string):
 new_string = string.replace('_', '').lower()

 return new_string


# 字符串转小驼峰
def str_to_little_camel_case(string):
 new_string = ''
 for word in string.split('_'):
 if new_string:
 new_string += word[0].upper() + word[1:]
 else:
 new_string = word

 return new_string


# 字符串转大驼峰
def str_to_big_camel_case(string):
 new_string = ''
 for word in string.split('_'):
 new_string += word[0].upper() + word[1:]

 return new_string


# 字符串转全小写,单词之间-隔开
def standard_str(in_str):
 # 把字符串转换成列表
 str_list = list(in_str)
 flag = False
 for i in in_str:
 if i.isupper():
 flag = True
 # 用循环取出每一个元素
 if flag:
 for i in in_str:
 # 判断元素是否是大写
 if i.isupper():
 # 如果是大写就记录下标位置
 index = str_list.index(i)
 # 判断如果是第一个首字母则跳出本次循环
 if index == 0:
 str_list[index] = i.lower()
 continue
 # 修改数据,把大写转换成小写和添加-
 str_list[index] = i.lower()
 str_list.insert(index, "-")

 elif i.isalnum() is False:
 str_list[str_list.index(i)] = ''

 out_str = "".join(str_list).replace('_', '-')

 return out_str


if __name__ == '__main__':
 # ll = ['user_info', 'UserInfo', 'userinfo']
 # for l in ll:
 # print(l, '->', str_to_little_camel_case(l))

 ss = ['LogSystemLog', 'Log_SystemLog', 'log_system_log', 'Log!System?Log']
 for s in ss:
 print(s, ' -> ', standard_str(s))