I am given the sentence My team is the BeST team at the tournament. as a test case to create create a function

def case_insensitivity(sentence):
    return new_sentence

which checks a given sentence for a case insensitive word and replaces the case insensitive word with XXX_.

i.e.

print(case_insensitivity('My team is the BeST team at the tournament'))
result
'My team is the XXX_ team at the tournament'

What's the best way to do this? casefold()

CodePudding user response：

Assuming we define the target words as having both a lowercase and uppercase beyond the first character, we can try using re.sub for a regex option:

def case_insensitivity(sentence):
    return re.sub(r'\w (?:[A-Z]\w*[a-z]|[a-z]\w*[A-Z])\w*', 'XXX_', sentence)

print(case_insensitivity('My team is the BeST team at the tournament'))

This prints:

My team is the XXX_ team at the tournament

CodePudding user response：

This is my solution (hopefully I understand well your problem):

1. you split the sentence intro words.

2. you loop through all the words

3. you loop through the letters of the words - starting from the second letter of each word.

4. check if there are any uppercase letters

5. if you find uppercase letter you give 1 to the have_to_replace variable.

6. you make the replacement

   txt = 'My team is the BeST team at the tournament'
   x = txt.split()
   
   for w in x:
       have_to_replace = False
       for l in w[1:]:
           if l != l.casefold():
               have_to_replace = True
       if have_to_replace:
           txt = txt.replace(w, 'XXX_', 1)
   print(txt)
   

For some reason the Code blocking is not working properly for the first 3 lines (and the last). Sorry for that.