Compiler Issues DOS Filename Lengths

[Watts]

I have a program when run on a file, it generates another file which is basically the same with a few things added in.

The new file has an added '_' in front of the orignal filename. Example:

indexcfg.htm becomes _indexcfg.htm

As you've noticed some of my filenames are 8 characters in length and when a '_' is added, the filename becomes 9 characters in length and a '~' is then added because of MSDOS filenaming.

Is there a way to use the compiler to tell the application that is okay to save with windows filename lengths of more than 8 characters? There has to be a way since the previous version of this application (which I modified) worked nicely.

 

[Cagliostro]

What does it have common with C++? John Fill

ivfmd@mail.md

 

[Watts]

I am using the microsoft visual C++ 6.0 CL compiler to build the application. I am sure someone has written a simple program that parses an input file and creates an output file from the DOS prompt using C++? There are no windows involved, just a simple command prompt application with two inputs, the name of the input file and the name of the output file.

I want the program to be able to save using Windows filename lengths of more than 8 characters without saving them with the '~' character in the name.

 

[Cagliostro]

If you make a console program do it:

#include<string>
#include<fstream>
#include<windows.h>
#include<iostream>
using namespace std;
int main(int _args,char** _cmdline)
{
string read_path;
if(_args>1)
{
read_path=_cmdline[1];
for(int i=2;i<_args;i++)
{
read_path+=&quot; &quot;;
read_path+=_cmdline;
}
cout<<read_path.begin()<<endl;
}
CreateDirectory((read_path+&quot;\\new&quot.begin(),0);
ofstream((read_path+&quot;\\new\\file with spaces in a long name.txt&quot.begin());//creates a file in the subdirectory new of directory name from command line which can be with or without spaces.

More simple is to do it in WinAPI programs

#include<fstream>
using namespace std;
int WINAPI WinMain(HINSTANCE,HINSTANCE,int,LPSTR cmdline)
{
ofstream(cmdline);//creates a full anme file what is in
//cmdline
return 0;
}
This program doesn't have windows, but in command line you can run it well. John Fill

ivfmd@mail.md

 

[Watts]

Here is the code I am using:

void main(int argc, char *argv[])
{
FILE *infile, *outfile;

infile = fopen(argv[1], &quot;rb&quot;
if (infile == NULL) {
perror(argv[1]);
exit(-1);
}

outfile = fopen(argv[2], &quot;wb&quot;
if (outfile == NULL) {
fclose(infile);
exit(-1);
}

if (check_realtime_data(infile))
fprintf(outfile, &quot;%s\r\n&quot;, REALTIME_DATA);
else
fprintf(outfile, &quot;%s\r\n&quot;, NO_REALTIME_DATA);

// write the C file
while (fgets(input_str, 256, infile) != NULL) {
fprintf(outfile, &quot;%s&quot;, input_str);
}

fclose(infile);
fclose(outfile);
}

If argv[2] happens to be greater than 8 characters, the file is created with a '~' in the name. This is not acceptable... I need to allow long filenames. Sorry for the confusion and thanks for the sample code, but I already have this going for me.