File: example1.e

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class EXAMPLE1
--
-- This example shows how to list the contents of a directory
-- using class DIRECTORY.
-- When no argument is given in the command line, the current working 
-- directory is listed.
--
--       compile -o run_it example1
--       run_it some_directory_path
--

creation make

feature {NONE}

   make is
      local
         directory: DIRECTORY;
         some_path: STRING;
      do
         if argument_count > 1 then
            io.put_string("usage : example1 [<some_path>]%N");
         elseif argument_count = 1 then
            some_path := argument(1);
            !!directory.scan(some_path);
            if directory.last_scan_status then
               list_directory(directory);
            else
               io.put_string("Unable to open directory %"");
               io.put_string(some_path);
               io.put_string("%".%N");
               directory.scan_with(some_path);
               if directory.last_scan_status then
                  list_directory(directory);
               end;
            end;
         else
            io.put_string("Scanning current working directory.%N");
            !!directory.scan_current_working_directory;
            list_directory(directory);
         end;
      end;
   
   list_directory(directory: DIRECTORY) is
      local
         i: INTEGER;
      do
         io.put_string("Printing content of %"");
         io.put_string(directory.path);
         io.put_string("%".%N");
         io.put_integer(directory.count);
         io.put_string(" item(s) found:%N");
         from
            i := directory.lower;
         until
            i > directory.count
         loop
            io.put_character('%T');
            io.put_string(directory.name(i));
            io.put_character('%N');
            i := i + 1;
         end;
      end;
   
end