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digitalmars.D.learn - Direntries seems to on other drives. (windows)

reply Taylor Hillegeist <taylorh140 gmail.com> writes:
SO i have a maximum scope depth tool, that i just put together it 
is super simple.
but when i use it in a drive other that C:\ i get an error. Even 
though i just checked for a valid path.

Any ideas?

C:\Users\taylor.hillegeist\Documents\CodeSync\D 
projects\Toys\TOOLS>NestCheck.exe 
G:\MPLAB\Projects\201001.X\source\

std.file.FileException std\file.d(3368): 
G:\MPLAB\Projects\201001.X\source: The system cannot find the 
path specified.
----------------
0x004101B6 in  safe bool std.file.cenforce!(bool).cenforce(bool, 
lazy const(char)[], immutable(char)[], uint)
0x0043E1C5 in ref std.file.DirIteratorImpl 
std.file.DirIteratorImpl.__ctor!(immutable(char)[]).__ctor(immutable(char)[],
std.file.SpanMode, bool)
0x0042417F in nothrow  nogc 
rt.util.container.treap.Treap!(gc.gc.Range).Treap.Node* 
rt.util.container.treap.Treap!(gc.gc.Range).Treap.insert(rt.util.container.treap.Treap!(gc.gc
Range).Treap.Node*, gc.gc.Range)
...

import std.file;
import std.path;
import std.stdio:writeln;

void main(string[] args){
	
	int depth=0;
	int Maxdepth=0;
	
	if(!args[1].buildNormalizedPath.isValidPath){writeln("Path is 
invalid! "); return;}
	
	foreach (string name; dirEntries(args[1].buildNormalizedPath , 
SpanMode.breadth))
	{
		
		int line =1;
		int column = 1;
		depth = 0;
		if(name.isFile){
			writeln(name);
			string myfile = cast(string) std.file.read(name);
			foreach(char C; myfile){
				if(C == '{' ){
					depth+=1;
				}else if (C == '}'){
					depth-=1;
				}else if (C == '\n'){
					line ++;
					column=1;
				}
				if (depth>Maxdepth){
					Maxdepth = depth;
					writeln("In File: ",name," Has a nested depth of: ",depth, " 
at line: ", line, " column: ", column);
				}
				column++;
			}
		}
	}
}
Mar 31 2016
next sibling parent rikki cattermole <rikki cattermole.co.nz> writes:
On 01/04/2016 3:05 PM, Taylor Hillegeist wrote:

 SO i have a maximum scope depth tool, that i just put together it is
 super simple.
 but when i use it in a drive other that C:\ i get an error. Even though
 i just checked for a valid path.

 Any ideas?

 C:\Users\taylor.hillegeist\Documents\CodeSync\D
 projects\Toys\TOOLS>NestCheck.exe G:\MPLAB\Projects\201001.X\source\

 std.file.FileException std\file.d(3368):
 G:\MPLAB\Projects\201001.X\source: The system cannot find the path
 specified.
 ----------------
 0x004101B6 in  safe bool std.file.cenforce!(bool).cenforce(bool, lazy
 const(char)[], immutable(char)[], uint)
 0x0043E1C5 in ref std.file.DirIteratorImpl
 std.file.DirIteratorImpl.__ctor!(immutable(char)[]).__ctor(immutable(char)[],
 std.file.SpanMode, bool)
 0x0042417F in nothrow  nogc
 rt.util.container.treap.Treap!(gc.gc.Range).Treap.Node*
 rt.util.container.treap.Treap!(gc.gc.Range).Treap.insert(rt.util.container.treap.Treap!(gc.gc.Range).Treap.Node*,
 gc.gc.Range)
 ...

 import std.file;
 import std.path;
 import std.stdio:writeln;

 void main(string[] args){

      int depth=0;
      int Maxdepth=0;

      if(!args[1].buildNormalizedPath.isValidPath){writeln("Path is
 invalid! "); return;}

      foreach (string name; dirEntries(args[1].buildNormalizedPath ,
 SpanMode.breadth))
      {

          int line =1;
          int column = 1;
          depth = 0;
          if(name.isFile){
              writeln(name);
              string myfile = cast(string) std.file.read(name);
              foreach(char C; myfile){
                  if(C == '{' ){
                      depth+=1;
                  }else if (C == '}'){
                      depth-=1;
                  }else if (C == '\n'){
                      line ++;
                      column=1;
                  }
                  if (depth>Maxdepth){
                      Maxdepth = depth;
                      writeln("In File: ",name," Has a nested depth of:
 ",depth, " at line: ", line, " column: ", column);
                  }
                  column++;
              }
          }
      }
 }


Looks like its a bug with WinAPI.

https://social.msdn.microsoft.com/Forums/en-US/8af82029-d4b9-44e4-ab6b-82526460f3ca/findfirstfile-api-fails-over-mapped-drives-windows-vista?forum=os_fileservices
Mar 31 2016
prev sibling parent Vladimir Panteleev <thecybershadow.lists gmail.com> writes:
On Friday, 1 April 2016 at 02:05:23 UTC, Taylor Hillegeist wrote:


 Even though i just checked for a valid path.



 [...]



 	if(!args[1].buildNormalizedPath.isValidPath){writeln("Path is 
 invalid! "); return;}


 From https://dlang.org/library/std/path/is_valid_path.html :


 It does *not* check whether the path points to an existing file 
 or directory; use std.file.exists for this purpose.


You are using the wrong function for the job.

The simple explanation is that the path you specified doesn't 
actually exist.
Apr 02 2016