I need to write a program and can't seem to get it

[Prog24]

My job is to read in a line of data from an input file, remove all white space and punctuation, then check to see whether or not it is a palindrome. A palindrome is a word or phrase that is the same backwards as it is forward like RACECAR.
The input file is an arbitrary length long including no input. I need to read in a line of data at a time then process it until there is no more data to process.
The output should look something like this.

Input Value: Sit on a potato Pan otis
Is it a palindrome? Yes

Input Value: race car
Is it a palindrome Yes

Input Value: wooHaaaaa
Is it a palindrome? No

I am very new to Programming so anything that you smarter people can do to help me would be greatly appreciated!
This is what I have right now:


#include <iostream>
#include <fstream>
#include <string>
using namespace std;

bool isPalindrome(string, int);

int main()
{
string sentence;
bool Palindrome;
int len;

ifstream inData;
ofstream outData;
inData.open("InPalindrome.txt");
outData.open("OutPalindrome.txt");

if (!inData)
{
cout << "Can't open input file!";
getchar();
return 1;
}

if (!outData)
{
cout << "Can't open output file!";
getchar();
return 2;
}

getline(inData, sentence);

while(inData)
{
len = sentence.length();
len--;
Palindrome = isPalindrome(sentence, len);
if (Palindrome)
cout << sentence << endl;
getline(inData, sentence);
}

getchar();
return 0;
}


bool isPalindrome(string sentence, int len)
{
string temp = sentence;
for (int i = 0; i == len; i++)
{
if(isalpha(sentence[i]))
temp[i] = tolower(sentence[i]);
}

for (int i = 0; i < len; i++)
{
while (ispunct(temp[i]) || isspace(temp[i]))
i++;

while (ispunct(temp[len]) || isspace(temp[len]))
len--;

if (sentence[i] != sentence[len])
return false;

len--;
}
return true;
}

I have this basic program written but have no clue where to go from here

[pogrady]

Seems like it works. Whats the problem?

[Prog24]

I have this program, but I dont know how to get what I need. I need to read in each line of the input file and check if each line is a Palindrome. it should look something like this:

Input Value: Sit on a potato Pan otis
Is it a palindrome? Yes

Input Value: race car
Is it a palindrome Yes

Input Value: wooHaaaaa
Is it a palindrome? No

but I dont know how to achieve this goal

[LB]

Start by stripping out the whitespace.

[Prog24]

I'm very new to programming. Ive been reading my book but I cant figure out how to do a lot of the things that are needed including stripping out the whitespace

[LB]

Here's an example that removes the letter R from whatever you type in:

1 2 3 4 5 6 7 8 9 10 11

std::string a, b; std::cout << "Enter text to remove Rs from:" << std::endl; std::getline(std::cin, a); for(std::string::size_type i = 0; i < a.size(); ++i) { if(a[i] != 'R' && a[i] != 'r') { b += a[i]; } } std::cout << b << std::endl;

Enter text to remove Rs from: Yarr, THAR be really scary. Ya, THA be eally scay. http://ideone.com/TuNTyM

From this you should be able to adjust it to remove spaces instead of the letter R.

[prototype151]

Just a quick response to what L B said,

Since this person is using the #include <iostream> library there is no need to use std::

Hope this helps,

Prototype151

[LB]

@prototype151 That is incorrect. using namespace std; allows you to omit the std:: prefix. Including the iostream header is what gives access to std::cout and std::cin in the first place.

[Prog24]

Ive never used std::cin before.
Would someone be able to show me how I could best put it into my program or if there is another way

[LB]

You've never used the standard input stream before? It's just like any other input stream, including the one in your program called inData.