Il 05/03/2014 00:12, Norihiro Tanaka ha scritto:
First, I also thoutht such a case.  But perhaps it's no problem, because
DFA will never come across CSET on second byte in Shift_JIS.

  "grep -i A" -> [Aa] -> CSET
  "grep -i $"\x82A" -> [$"\x82\x82A"$"\x82\x82"] -> \x82 A CAT \x82 \x82 CAT OR

Laster will be never \x82 [A\x82] -> \x82 CSET CAT.

What about these two commands:

   grep [a]
   grep -i A

Would they match \x82\x61 ("B", U+0FF22) with your patch?  And without it?

Paolo



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