Entering a sentence into an array in C

Zedd

Hey all,

I am trying to write a bit of code to enter a string into an array, but to only stop when the user enters a new line with only a '.' on it.

At the moment i have:

printf("Enter a sentence:\n");
while(sentence!='.')
{
scanf("%[^\n]s",&sentence);
i++;
}

This just stops when you hit enter. So how do you get it to stop taking input only after the '.'

Any help would be great, thanx

aidan_walsh

Well, for one your inputting a character, then jumping up along the index. Then you check the new index position, which will always be blank. Increment before you scan the new character (unless of course the index is zero).

Adam

Declare the array first perhaps?

Zedd

That was just a segment of the code, all the variables and the array have been define before hand. I can put the lot up if it will help?

I see what you mean about the increment but it still just stops taking the input when you hit enter. Any ideas on how to get it to allow you to hit enter if you like until enter '.'

daymobrew

Would getch() be better than scanf because it doesn't wait for Enter to be pressed before returning. It's been so long since I used this function I can't give you sample code. Try Google's Code Search.

Capt'n Midnight

Zedd wrote:

Hey all,

I am trying to write a bit of code to enter a string into an array, but to only stop when the user enters a new line with only a '.' on it.

OMG no buffer overflow protection :eek: :eek:

/broken record

do you have to check the length of getch() or maybe I'm confusing it with another way that returns two bytes on special keys ?

Mutant_Fruit

UCD - 2nd year engineering. You have Heneghan, right?

Anyway, as a hint (this is how i solved the question when i did it): Think of what the last few key presses will be when the user is trying to finish entering a sentance. Type in a sentance, and look at the last few keypresses as you "complete" your sentence.

Once you know what those keypresses are, you just have to run a check every time a char is read in to make sure that sequence isn't at the end of your array.