string manipulation

[cmsamcfe]

i have a set of strings

"C:\test\abc\file1.dat"
"C:\test\test2\test3\file1.dat"

and I need to turn it into a filename -

"test_abc.dat"
"test_test2_test3.dat"

I have written code to produce the output required, but it doesn't remove the filename from the end of the original string.


char* tempString = temp_filename.c_str();

for (int x = 3; x < strlen(tempString); x++)
{
if(tempString[x] == '\\')
FileName += &quot;_&quot;;
else
FileName += tempString[x];
}

How can I adapt this code so that it ignores the filename and adds only the folder names to the new filename?

Thanks

 

[Totte]

I'm a bit unsure here. I think i know what You want but what format is variable 'FileName'? AnsiString? char[]?
Is it cleared??? With the example code You're only adding to it, not starting from scratch.

And then You're declaring:
char * tempString = temp_filename.c_str();
In my point of view it's a big no-no.

I would choose to copy it to a new stringbuffer:
char tempString[MAX_PATH]; // Could be declared with new...
strcpy(&tempString,temp_filename.c_str()); // Copy the whole string

Now they're NOT at the same adress, it's only pure text in tempString and You can do nothing wrong with that.

This should work with the code You supplied but as the goal seems a little uncertain to me i will not promise anything.

Totte

 

[2ffat]

Unless you really want to roll your own routine, look at ExtractFileName. It takes an AnsiString and returns an AnsiString.

AnsiString FullPath = "C:\\System32\\MyProg.exe";
AnsiString ProgName = ExtractFileName(FullPath);

James P. Cottingham

When a man sits with a pretty girl for an hour, it seems like a minute. But let him sit on a hot stove for a minute and it's longer than any hour. That's relativity.
[tab][tab]Albert Einstein explaining his Theory of Relativity to a group of journalists.

 

[rep331]

char str[MAX_PATH];
char *ptr;

strcpy(str, temp_filename.c_str());
ptr = strrchr(str, '\\');
*++ptr = '\0';

You no longer have the file name, but do have the final '\'

 

[Totte]

And to remove the final '\' the last line should read:
*ptr = '\0';

Totte