目标:复杂的托管符串是当只考虑其字母数字字符并忽略字符的情况时,它是一个托管符串.任务是确定给定字符串是否是一个复杂托管符.输入:由ASCII字符组成的字符串.
Here's a possible solution in Python:

```
import re

def is_complex_palindrome(text):
    # Remove non-alphanumeric characters and convert to lowercase
    text = re.sub('[^a-zA-Z0-9]', '', text).lower()
    # Check if the reversed string is equal to the original string
    return text == text[::-1]
```

This solution uses the re module in Python to remove all non-alphanumeric characters from the input string and convert the remaining characters to lowercase. Then it checks if the reversed string is equal to the original string, which would make it a palindrome.