• Joey Peters (14/14) Sep 07 2004 I'm making my own (small) build system and when I wanted to write someth...
• J C Calvarese (21/40) Sep 07 2004 I think there's a bug in getcwd. This example works around the bug:
• Joey Peters (1/21) Sep 08 2004
• J C Calvarese (28/60) Sep 21 2004 *Update*
• Russ Lewis (10/22) Sep 21 2004 I just can't express how much I like foreach. It makes things so nice!

Joey Peters <Joey_member pathlink.com> writes:

I'm making my own (small) build system and when I wanted to write something to
autogenerate the make scripts it seemed that listdir didn't work quite the way I
expected it to work. Phobos claims to just return the contents of a directory.
When I tried:

char[][] files = listdir(getcwd());
foreach(char[] file; files) {
std.stream.stdout.writeLine(file);
}

It seems to only return the relative path name instead of the directory
contents.

~ "/*" doesn't work either, ~"\\" neither on that case...

Anyway, does anyone know how to fix this problem, or have a work around? I want
to keep it portable.

-Joey

J C Calvarese <jcc7 cox.net> writes:

Joey Peters wrote:
 I'm making my own (small) build system and when I wanted to write something to
 autogenerate the make scripts it seemed that listdir didn't work quite the way
I
 expected it to work. Phobos claims to just return the contents of a directory.
 When I tried:
 
 char[][] files = listdir(getcwd());
 foreach(char[] file; files) {
 std.stream.stdout.writeLine(file);
 }
 
 It seems to only return the relative path name instead of the directory
 contents.
 
 ~ "/*" doesn't work either, ~"\\" neither on that case...
 
 Anyway, does anyone know how to fix this problem, or have a work around? I want
 to keep it portable.
 
 -Joey

I think there's a bug in getcwd. This example works around the bug:

import std.file;
import std.stdio;

void main()
{
     char[][] d;
     char[] cwd = getcwd();
     cwd = cwd[0..cwd.length-1];

     writef("cwd: %s\n\n", cwd);

     d = listdir(cwd);
     for(int i; i<d.length; i++)
         writef("%s\n", d[i]);
}

Apparently, getcwd returns a string contains a trailing null. This null 
seems to throw off listdir.

Also, you might want to use std.recls to traverse directories:
http://www.dsource.org/tutorials/index.php?show_example=27


-- 
Justin (a/k/a jcc7)
http://jcc_7.tripod.com/d/

Joey Peters <Joey_member pathlink.com> writes:

I think there's a bug in getcwd. This example works around the bug:

import std.file;
import std.stdio;

void main()
{
     char[][] d;
     char[] cwd = getcwd();
     cwd = cwd[0..cwd.length-1];

     writef("cwd: %s\n\n", cwd);

     d = listdir(cwd);
     for(int i; i<d.length; i++)
         writef("%s\n", d[i]);
}

Apparently, getcwd returns a string contains a trailing null. This null 
seems to throw off listdir.

Also, you might want to use std.recls to traverse directories:
http://www.dsource.org/tutorials/index.php?show_example=27

Thanks that worked fine :)

-- 
Justin (a/k/a jcc7)
http://jcc_7.tripod.com/d/

J C Calvarese <jcc7 cox.net> writes:

Joey Peters wrote:
I think there's a bug in getcwd. This example works around the bug:

import std.file;
import std.stdio;

void main()
{
    char[][] d;
    char[] cwd = getcwd();
    cwd = cwd[0..cwd.length-1];

    writef("cwd: %s\n\n", cwd);

    d = listdir(cwd);
    for(int i; i<d.length; i++)
        writef("%s\n", d[i]);
}

Apparently, getcwd returns a string contains a trailing null. This null 
seems to throw off listdir.


*Update*

Now that Walter fixed the getcwd() bug with DMD 0.102, this is the 
proper code:

import std.file;
import std.stdio;

void main()
{
     char[][] d;
     char[] cwd = getcwd();

     writef("cwd: %s\n\n", cwd);

     d = listdir(cwd);
     for(int i; i<d.length; i++)
         writef("%s\n", d[i]);
}



Also, this code based on the original post works:

import std.file;
import std.stream;

void main()
{
     char[][] files = listdir(getcwd());
     foreach(char[] file; files) {
         std.stream.stdout.writeLine(file);
     }
}


Also, you might want to use std.recls to traverse directories:
http://www.dsource.org/tutorials/index.php?show_example=27

 
 
 Thanks that worked fine :)
 
 
-- 
Justin (a/k/a jcc7)
http://jcc_7.tripod.com/d/




-- 
Justin (a/k/a jcc7)
http://jcc_7.tripod.com/d/

Russ Lewis <spamhole-2001-07-16 deming-os.org> writes:

J C Calvarese wrote:
 Also, this code based on the original post works:
 
 import std.file;
 import std.stream;
 
 void main()
 {
     char[][] files = listdir(getcwd());
     foreach(char[] file; files) {
         std.stream.stdout.writeLine(file);
     }
 }

I just can't express how much I like foreach.  It makes things so nice! 
  I'd prefer to write the code above as this, which I think is a little 
simpler and easier to read:

void main()
{
     foreach(char[] file; listdir(getcwd))
         std.stream.stdout.writeLine(file);
}

It's beautiful...