python 将字符串拆分为字母、数字和特殊字符

Question

我有以下函数想要将字符串拆分为单词。分割结果需要分隔字母、数字和一些特殊字符，如 / 或 -

import pandas as pd
import re

def split_string_with_letters_and_non_letters(input_string):
    split_strings = re.split(r"([a-zA-Z] )+", input_string)

    result = []
    count = 0
    for x in split_strings:
        if x not in result and x != ' ' and x != '':
            result.append(x.lower().strip())
            count=count+1

    delim = "|"
    result_string = delim.join([str(ele) for ele in result])
    
    return result_string

teststring= "SPRINTER2500 2WD C E-150"
print(split_string_with_letters_and_non_letters(teststring))`

我的预期回报结果是：

"SPRINTER|2500|2|WD|C|E|-|150"

Answer 1

问题出在你的正则表达式中。这是重新审视的代码：

import re

def split_string_with_letters_and_non_letters(input_string):
    #new regex
    split_strings = re.findall(r'[A-Za-z]+|\d+|[/|-]', input_string)

    # Remove empty elements
    result = [x for x in split_strings if x]
    # Join with a delimiter
    result_string = "|".join(result)
    
    return result_string

teststring = "SPRINTER2500 2WD C E-150"
print(split_string_with_letters_and_non_letters(teststring))

结果：

SPRINTER|2500|2|WD|C|E|-|150