Thread: parsing a string

I have 2 strings like this:
In these 2 cases I want to get "File1.txt" and "File2.txt" and put them to a new string.
I need the same method so I suppose I have to find the Last "/" in the string and then
put the rest to a new string.

What method and approach could be used to do this ?

Code:

std::string Line1 = "c:\Folder1\File1.txt";
std::string Line2 = "c:\Folder1\Folder2\File2.txt";

std::string::rfind()

Yes okay, I will try that out.

Thanks !

You can also use a single '/' instead of double '\\' for path separators:

Code:

"C:/Folder/File.txt"

Originally Posted by Elysia

Only works with API and I wouldn't actually recommend it. Proper filenames uses backslashes (\) and not forward slashes. Someday Microsoft might just change it.

What do you mean "only works with API"?

Windows filesystem uses "\" and not "/". Windows API translates "/" into "\".

Microsoft Windows supports both, no matter if it's translated or not. To demonstrate:

Code:

#include <stdio.h>

int main ( void )
{
    char word[100];
    const char * const filepath = "C:/Documents and Settings/JCK/My Documents/data.txt";

    FILE * fdata;

    fdata = fopen( filepath, "w+" );
    if ( fdata ) {
        fputs( "Hello, world! This is a sample text file.\n", fdata );

        rewind( fdata );

        while ( fscanf( fdata, "%99s", word ) == 1 ) {
            printf( "read from file: \"%s\"\n", word );
        }
        fclose( fdata );
        remove( filepath );
    }
    return 0;
}

/** as expected, the output:
read from file: "Hello,"
read from file: "world!"
read from file: "This"
read from file: "is"
read from file: "a"
read from file: "sample"
read from file: "text"
read from file: "file."
**/

This was compiled with Visual C++ 2005 Express on Windows XP Home SP2.
Filepaths with forward slashes will be opened fine.

Originally Posted by Elysia

Type "cd c:/" in the command prompt and see what happens.
Windows filesystem uses "\" and not "/". Windows API translates "/" into "\".

I'm not suggesting using forward slashes outside of source code.