Hello, This multipart tutorial seems similar to what you are describing: http://blog.moertel.com/articles/2007/03/28/directory-tree-printing-in-haske... The tutorial is actually a bit more complicated, it is traversing a whole directory tree and printing a nice graph. HTH, j. At Mon, 9 Apr 2007 10:46:14 +0800, Albert Lee wrote:
Newbie's question: I want to ls the filenames of a directory. The program in C is something like:
#include
int main(){ DIR *dp; struct dirent *dirp;
dp = opendir("/");
while((dirp = readdir(dp)) != NULL) printf("%s\n", dirp->d_name);
closedir(dp); }
and I write that in haskell:
----- import System.Posix import System.IO
main = do dp <- openDirStream "/" df <- readDirStream dp putStrLn df closeDirStream dp
------ It can print the first entry of the dir, but how can we list it all like the C prog? map ? list comperhension?