rewritten in D

tolf.d

@@ -6,50 +6,12 @@
 /* Replace line endings with LF
  */
 
-import std.file;
-import std.path;
+import std.file, std.path, std.string;
 
-int main(string[] args)
+void main(string[] args)
 {
     foreach (f; args[1 .. $])
-    {
-        auto input = cast(char[]) std.file.read(f);
-        auto output = filter(input);
-        if (output != input)
-            std.file.write(f, output);
-    }
-    return 0;
+        if (f.exists)
+            f.write(f.readText.lineSplitter.join('\n'));
 }
 
-
-char[] filter(char[] input)
-{
-    char[] output;
-    size_t j;
-
-    for (size_t i = 0; i < input.length; i++)
-    {
-        auto c = input[i];
-
-        switch (c)
-        {
-            case '\r':
-                c = '\n';
-                break;
-
-            case '\n':
-                if (i && input[i - 1] == '\r')
-                    continue;
-                break;
-
-            case 0:
-                continue;
-
-            default:
-                break;
-        }
-        output ~= c;
-        j++;
-    }
-    return output[0 .. j];
-}