Filenames

[pskyboy]

Hey Guys I need help again suprise suprise


I must say i do appreciate all the help that people give me and hopefully i will be in the position to help other people soon.

Anyway i was wondering if anyone knew a simple way to take a string which contains a filename in this case and chop the last three characters of basically the file extension and then reapply another extension.

the string for the filename is a TCHAR type

Thanks for the help

Peter

[Destined Soul]

Heh.. I'm not sure how 'valid' this is for editing strings, but it works for me:

   TCHAR FileName[128] = "Hello world.jpg";
   
   cout << FileName << endl;
   
   int i = 0;
   while (FileName[i] != '\\0') i++;
   FileName[i-3] = '\\0';
   strcat(FileName,"gif");    // need <string.h> for this

   cout << FileName << endl; 

I stated that this might not be "valid" as I don't replace the 'p' or 'g' with string termination characters ('\0'), but it does work. Another method, after the while loop, is to use

   i -= 3;
   FileName[i++] = 'g';
   FileName[i++] = 'i';
   FileName[i++] = 'f';

   cout << FileName << endl; 

If you're not going for smallest filesize, the top one is a bit neater, plus you could replace "gif" with a string passed to that function.

Hope this is what you need.

Destined

[Megatron]

Try this:

char sNewName[25];
char *sFile = "My File.jpg";
for(int i=0; i < strlen(sFile); i++) {
	if( sFile[i] == '.' ) {
		strncpy(sNewName, sFile, i);
		sNewName[i] = '\0';
	}
}

// sNewName contains the filename without the extension.
cout << sNewName;

[pskyboy]

Cheers Guys


Thats exactly what i need thanks for the help.


Peter