[DGD] Remove Multiple Instances from Array

[Michael McKiel]

Just thought I'd throw this out there, if someone might have use of it, was
something I came up with to preserve order of elements.

keys = explode(str, " ");

/* Remove multiple instances of the same word, preserving order. 
** Note: >= 1; we don't check the first element since previous
** matching elements in the arrary were already removed.
*/
for (i=sz=sizeof(keys); --i >= 1; )
{
    if (keys[i] == "" || sizeof(({ keys[i] }) | keys) != sz)
        keys[i] = nil;
}
keys -= ({ nil });


Oh yeah I stole Par's comment style ;)


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