Taking from a file and storing it in two seperate places?

[demosthenes2k8]

Is there a way to take input from a file, and if each line begins with $ it gets stored in one set of data, and if it begins with @ it gets stored in another?
Here's what I have:

#include <iostream>
using namespace std;
#include <fstream>
#include <conio.h>
#include "progclass.cpp"

program_t player1;
program_t player2;

int main(int argc, char *argv[])
{
    string heldcmd;
    int i=0;
    char temp;
    fstream playerdata;
    playerdata.open("player1.txt");
    if( playerdata.is_open() )
    {
        while (! playerdata.eof() )
        {
            temp = playerdata.peek();
            if(temp == '$')
            {
                getline (playerdata,player1.includes[i]);
            }
            else if(temp == '@')
            {
                getline (playerdata,player1.commands[i]);
            }
            else
            {
                getline (playerdata,heldcmd);
                cout << "ERROR: Invalid Command Entered\n";
            }
            i++;
        }
    }
    playerdata.close();
    getch();
    return 0; 
}

Progclass.cpp:

#ifndef PROGCLASS
#define PROGCLASS

typedef struct program_t{
       string commands[10];
       string includes[5];
};

#endif 

It just prints an error message to the console, even though they all have $ or @ in front of them

[Bazzy]

getline works with strings, player1.includes[0][0] is a char

[demosthenes2k8]

Yeah, I fixed it and edited my post.
Now the new problem I got is that it won't accept my input file. I just says "ERROR: Invalid Command Entered"

[Bazzy]

I think your problem is with your "player1.txt" file, try to modify line 33 as this:

 cout << "Error at line " << i << ", Invalid Command Entered: \"" << heldcmd << "\" first character : "<< temp << " (" << (int)temp << ')' << '\n';

so that you will see what's wrong with that file.
(your program will show that error message each time a new line doesn't start with '@' or '$')

[demosthenes2k8]

Error at line 3, Invalid Command Entered: "" first character :   (-1)

I found out what was wrong, I was using Dev-C++ to compile and I had opened player1.txt in it. It automatically appends a newline when I save for some reason *sheepishgrin*

Thank you, that DID help me quite a bit.

EDIT:
Now when I try calling my function to open a second file, it doesn't run!
I can only open one file, even if I close the previous file!
I even tried making a second fstream, but nothing happened!

void loadplayers()
{
    string heldcmd;
    int i=0,j=0,k=0;
    char temp;
    fstream playerdata;
    playerdata.open("player1.txt");
    if( playerdata.is_open() )
    {
        while (! playerdata.eof() )
        {
            temp = playerdata.peek();
            if(temp == '$')
            {
                getline (playerdata,player[0].includes[i]);
                cout << "Included function list:" << player[0].includes[i] << "\n";
                i++;
            }
            else if(temp == '@')
            {
                getline (playerdata,player[0].commands[j]);
                j++;
            }
            else if(temp == '#')
            {
                getline (playerdata,heldcmd);
            }
            else
            {
                getline (playerdata,heldcmd);
                cout << "Error at line " << k << ", Invalid Command Entered: \"" << heldcmd << "\" first character : "<< temp << " (" << (int)temp << ')' << '\n';
            }
            k++;
        }
    }
    playerdata.close();
    getch();
    system("cls");
    i=0;
    j=0;
    k=0;
    playerdata.open("player2.txt");
    if( playerdata.is_open() )
    {
        while (! playerdata.eof() )
        {
            temp = playerdata.peek();
            if(temp == '$')
            {
                getline (playerdata,player[1].includes[i]);
                cout << "Included function list:" << player[1].includes[i] << "\n";
                i++;
            }
            else if(temp == '@')
            {
                getline (playerdata,player[1].commands[j]);
                j++;
            }
            else if(temp == '#')
            {
                getline (playerdata,heldcmd);
            }
            else
            {
                getline (playerdata,heldcmd);
                cout << "Error at line " << k << ", Invalid Command Entered: \"" << heldcmd << "\" first character : "<< temp << " (" << (int)temp << ')' << '\n';
            }
            k++;
        }
    }
    playerdata.close();
    getch();
    return;
}

[firedraco]

Try calling playerdata.clear() in between each close() and open()...if that doesn't work...I don't know what the problem is...make another fstream I guess.

[demosthenes2k8]

Thanks! That .clear bit fixed it!

EDIT AGAIN:
So, say I have a string like this, taken with the above code:

@data 0 0

How can I parse it into the word "data" and the number 0 stored as an int?
EDIT++:
And is there a way to #define a comment? Like, make COMMENTZ represent a comment?

[demosthenes2k8]

I hate to double-post, but does anyone know how to help with these two problems? The letter-meaning-a-comment and the string splitting into a string and two ints?

[Bazzy]

Whith comment you mean to skip the file line?
try with:

if( temp==/*comment char*/)
{
    playerdata.ignore(1024,'\n');
    continue;
}

For getting two numbers, try:

int somenumbers[2], i=0;
while(true)
    temp = playerdata.peek();
    if (temp=='\n') break;
    if (isnumeric(temp))
        playerdata >> somenumbers[i++];
    else
        playerdata.get();
}

[demosthenes2k8]

For the comments, I mean making the letters BTW represent // and actually work as a comment.

I'll test that code out, but it looks like that will work. Thanks again!

EDIT: Umm...I hate to be a noob, but that's for a file. What if I want it to be taken from the strings thatwere made in that file?

[demosthenes2k8]

I REALLY hate to necropost, but both of these are important for my project. Also, unless I'm wrong that would end up only containing the last letter of the word...

[Bazzy]

I mean making the letters BTW represent // and actually work as a comment

#define BTW // Won't work, why do you need that?

What if I want it to be taken from the strings that were made in that file?

You mean that you got a string from the file and use it as a stream?
If so, you should look at stringstreams ( <sstream> ) http://www.cplusplus.com/reference/iostream/stringstream/

[demosthenes2k8]

*sheepishgrin*
lolcode

Thanks, I think stringstreams are just what I needed.

[helios]

Well, you can still

#define KTHNXBAI exit(0);
#define OHNOES throw 

[demosthenes2k8]

I already have most of the basics implemented, but thanks for the throw idea.
The tough part is the comments: I need BTW to represent //, OBTW to mean /*, and TLDR to mean */
Nice throw...catch idea. I'll list you as offering that idea.

I'm having trouble, as bad as it sounds, just getting the next letter in the file.

void EncryptFile(char filename[])
{
    long j;
    char* plain;
	fstream filetoencrypt;
	filetoencrypt.open(filename);
	if( filetoencrypt.is_open() )
	{
        while( !filetoencrypt.eof() )
        {
            filetoencrypt.get(plain[j]);
            j++;
        }
        filetoencrypt.close();
    }
    for(int i=0;i<j;i++)
    {
        cout << plain[i];
    }
}

I tried throwing and catching a lot, and learned that it's stumbling on filetoencrypt.get(plain[j]);