Thread: How to take a char string and separate it at a capital letter?

I need to write a program where a name is to be entered as a continuous string, such as "JohnDoe" and then it prints out "John Doe". The stipulation is that the first name becomes its own string and the second name is also its own string. So basically the input string gets split and assigned to string a and string b, where the second capital letter exists.

I tried having the program convert each letter to ASCII and then starting the new string when it hit a value within the ASCII capital letters. But that was a mess that I couldnt even get to compile. That doesnt seem like the right approach.

Logically, how would you guys approach this? We just got done talking about strlen, strcpy, strcat, etc so I'm thinking the solution may lie there, but I'm not seeing how to utilize that, or if its the easiest way.


Thanks,
crazychile

It sounds like you are on the right path in scanning for up case letters, when you find one, keep that address and use it in strcpy. Of course, you need to decide how you will use memory here as you need somewhere to copy to. Either use some pre-allocated space that is "big enough" or allocate dynamically after you have obtained the length of the string.

That structure makes sense. Thank you.

So I would still be checking the character by its ASCII value to determine a capital letter, or is there an easier way?


thanks,
crazychile

Originally Posted by crazychile

That structure makes sense. Thank you.

So I would still be checking the character by its ASCII value to determine a capital letter, or is there an easier way?


thanks,
crazychile

You don't have to look for the value, you can use the function isupper() declared in ctype.h, it takes a character as argument and return true (non zero) if it's an upper case letter.

Or check that the character is (ch >= 'A' && ch <= 'Z')

Originally Posted by nonoob

Or check that the character is (ch >= 'A' && ch <= 'Z')

Yeah, I'm liking that. Thanks!