Online Upper Case Converter

I have a huge file in this layout:

world12345:Betaalpha    world12344:alphabeta    world12343:ZetaBeta    world12342:!betatheta

I need to convert the first lowercase letter after the ":" to uppercase and the first uppercase letter to lowercase. I've tried using notepad++ and emeditor, but I'm not that experienced with regex.

This is how I want it to become after (regex?)

world12345:betaalpha    world12344:Alphabeta    world12343:zetaBeta    world12342:!betatheta   (unchanged, as the first char is a special char)

I have tried searching the web for a regex in npp+, but to no avail.Unfortunately, I'm not a scripter so I can't write one myself.

Thanks in advance!

I'm tasked with counting uppercase, lowercase, digits, and whitespace characters in a .txt file.

I've tried it a variety of ways and I can't quite seem to get it right. I can't figure out where I'm off.

Here's the output that I get:

The uppercase count is 0The lowercase count is 0The digit count is 0The whitespace count is 0

Code:

def main():    uppercase_count = 0    lowercase_count = 0    digits_count = 0    whitespace_count = 0    uppercase =['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']    lowercase = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']    digits = ['0','1','2','3','4','5','6','7','8','9']    whitespace = [' ']    infile = open("text.txt", "r")    data = infile.readlines()    for character in data:        if character in uppercase:            uppercase_count += 1    for character in data:        if character in lowercase:            lowercase_count += 1    for character in data:        if character in digits:            digits_count += 1    for character in data:        if character in whitespace:            whitespace_count += 1    print('The uppercase count is',uppercase_count)    print('The lowercase count is',lowercase_count)    print('The digit count is',digits_count)    print('The whitespace count is',whitespace_count)main()

I have a word default and I want a php function to make only first letter capital. Can we do that. Please help me out as I am very new to php coding.

I am trying to figure out how I can count the uppercase letters in a string.

I have only been able to count lowercase letters:

def n_lower_chars(string):    return sum(map(str.islower, string))

Example of what I am trying to accomplish:

Type word: HeLLo                                        Capital Letters: 3

When I try to flip the function above, It produces errors:

def n_upper_chars(string):    return sum(map(str.isupper, string))

Is there a way to convert a string from uppercase, or even part uppercase to lowercase?

E.g. Kilometers --> kilometers.