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* util.hex: Normalize hex to lowercase and discard non-hex inputKim Alvefur2015-08-261-1/+2
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* util.hex: Pedantic optimization, 1 table lookup per byte instead of 3 ↵Kim Alvefur2015-01-121-7/+13
| | | | function calls makes it go faster
* util.hex: Use locals!Kim Alvefur2014-09-031-2/+2
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* util.hex: Small util lib for converting to/from hex stringsMatthew Wild2014-09-021-0/+19