refuses to open file

[Ali Çehreli]

On 04/17/2013 02:57 PM, rbtwms at digitalpath.net wrote:

 > I had made so many changes truing to solve the problem that I included a
 > older version. another problem is that with the file name: efile =
 > File("l:\\filepro\\mvmammach\\key") with no space before the drive letter
 > the silently quits with no error but as you can see efile name is 
just a hex
 > number.(see (1))  putting a space before the drive letter causes the
 > exception (see (2)).
 >
 >
 > (1)
 > command line ["eqipfile"]
 > defile name is File(2002FE0)

Is it really "defile" that gets printed up there, or is that another 
typo? I highly recommend that you provide a complete program for us to try.

 > WITHOUT SPACE!
 >
 > (2)
 > command line ["eqipfile"]
 > std.exception.ErrnoException at std\stdio.d(289): Cannot open file `
 > l:\filepro\mvammach\key ' in mode `rb' (Invalid argument)

This time it seems to be complaining about a space *after* the file 
name! (?)

 > ----------------
 > 0x0041B478
 > 0x0041B303
 > 0x004101E3
 > 0x0040BB04
 > 0x0040BB3E
 > 0x0040B760
 > 0x00422AED
 > 0x770133AA in BaseThreadInitThunk
 > 0x77DB9EF2 in RtlInitializeExceptionChain
 > 0x77DB9EC5 in RtlInitializeExceptionChain
 >
 >
 > WITH SPACE!
 >
 > code excerpt follows:
 >
 > writefln("command line %s", args[]);
 >    efile = File(" l:\\filepro\\mvammach\\key");

I have a vague recollection that forward slashes work with file names 
even under Windows.

 > writefln("efile name is %s", efile);  	    	
 >    char[4600] buf;

That doesn't look right: char is a UTF-8 code unit. Unless you are sure 
that the file contains UTF-8, I recommend you use something else, e.g. 
ubyte.

 >    string[int] list;
 > 	efile.rawRead(buf);

Do you intend to ignore that read? The data will be overwritten by the 
following rawRead.

 >    while(efile.rawRead(buf)){
 >      if(buf[0] != 0x01) continue;
 >      string c = to!string (buf[107..111]);

You are doing that because you are sure that there is a valid Unicode 
character there? (Although I am not sure how it is related to the problem.)

 >      if (c == "    ") break;
 >      int z = to!int(c);
 >      string s = to!string(buf[67..92]);

'to' may throw an exception. Try wrapping that section in a try block to 
see whether you get any information from that exception.

Also, try compiling with -g or -gc to see whether the backtrace will be 
more useful.

 >      list[z] = s;
 >      }
 > Sorry I seen to have had my identity set up wrong it is corrected now.

Ali