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Old 28th August 2011, 21:22   #24
DrO
 
Join Date: Sep 2003
Posts: 27,873
it's basically ascii and extended ascii control characters which is basically the following decimal values:

0 - 31 (excluding 9 (tab), 10 (carriage return), 13 (new line))
128 - 159 (half of these can be valid but depends on font quirks, etc, so just not supporting them)

-daz
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