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From: "Richard M. Stallman" <rms@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Suspicious code in search.c
Date: Thu, 20 Oct 2005 19:38:23 -0400
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Cc: emacs-devel@gnu.org, "Kim F. Storm" <storm@cua.dk>
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    See search.c line 1711-1712:

	      if (ASCII_BYTE_P (*ptr) || ! multibyte)
		ch = *ptr;
    -->	  else if (charset_base
    -->		   && (pat_end - ptr) == 1 || CHAR_HEAD_P (ptr[1]))
		{
		  unsigned char *charstart = ptr - 1;

Handa, you wrote that code in April.  Can you clear it up?