File Processing

I have a .dat file that has about 5000 words in it. I would like a program that removes all string that are more than 5 letters long and that has an upper-case character. For example, if this was my original file:

Code:

---

Jim
jumpy
cooks
Brite
spark

---

my new file would only contain the following:

Code:

---

jumpy
cooks
spark

---

I am asking this since I am a complete newbie at file processing and I need someone to point me in the right direction. Thank you.

Get some basic code up and we'll help you from there :D .

Literally, all I know are the basics. That is, I know how to read from a file but thats it. Here goes:

Code:

---

#include <iostream.h>
#include <fstream.h>
#include <iomanip.h>
#include <stdlib.h>

int main()
{
ifstream inClientFile("data.dat", ios::in);

if(!inClientFile){
cerr<< "File cannot be opened";
exit(1);
}

}

---

That's basically it. See what I mean? I do not know how to read for specific characters, length of characters, etc. Please help!

ifstream works much like istream:

Code:

---

ifstream fin;
fin.open("somefile.txt");
fin >> aVar >> anotherVar;
getline(fin, var3);

---

Let's start off with some slightly modified basics. Here's a little different version of your code:

Code:

---

#include <iostream>
#include <fstream>
#include <iomanip>
#include <cstdlib>
using namespace std;

int main()
{
  ifstream inClientFile("data.dat", ios_base::in);

  if(!inClientFile.is_open()){
    cerr<< "File cannot be opened";
    return 1;
  }

  // do file stuff here

  return 0;
}

---

First you need somewhere to save read data. (ie: char text[100];)
You also need a temporary file.
Then you need to read each line and write it to the temporary file if it doesn't have a capital or if its length is <= 5.
Then you need to close both files and rename the temp file to the original file.

[edit]
To offer a little more, do something like this:

Code:

---

while (inClientFile.getline(text, 100).good()) {
  if (!hasCapital(text) && strlen(text) <= 5)
    tempFile << text << endl;
  //...
}

  // then close both files

  // then delete the source file

  // then rename the temp file to the source file name

---

That should get you on your way...

An even easier way to read strings:

Code:

---

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

int main()
{
  ifstream inClientFile("data.dat", ios_base::in);

  if(!inClientFile.is_open()){
    cerr<< "File cannot be opened";
    return 1;
  }
  string line;
  while(getline(inClientFile,line)){
    //Check line for correctness here
  }
}

---