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coding.c (decode_coding_iso_2022): When an invalid escape sequence is encountered, reset the invocation and designation status to the safest one.

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Kenichi Handa 2013-04-25 00:09:49 +09:00
parent 1ffefcf908
commit ec5098562a
2 changed files with 14 additions and 0 deletions
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6
src/ChangeLog
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@ -1,3 +1,9 @@
2013-04-24 Kenichi Handa <handa@gnu.org>
* coding.c (decode_coding_iso_2022): When an invalid escape
sequence is encountered, reset the invocation and designation
status to the safest one.
2013-04-22 Paul Eggert <eggert@cs.ucla.edu>
* Makefile.in (bootstrap-clean): Remove stamp-h1 too.

8
src/coding.c
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@ -3887,6 +3887,14 @@ decode_coding_iso_2022 (struct coding_system *coding)
*charbuf++ = c < 0 ? -c : ASCII_BYTE_P (c) ? c : BYTE8_TO_CHAR (c);
char_offset++;
coding->errors++;
/* Reset the invocation and designation status to the safest
one; i.e. designate ASCII to the graphic register 0, and
invoke that register to the graphic plane 0. This typically
helps the case that an designation sequence for ASCII "ESC (
B" is somehow broken (e.g. broken by a newline). */
CODING_ISO_INVOCATION (coding, 0) = 0;
CODING_ISO_DESIGNATION (coding, 0) = charset_ascii;
charset_id_0 = charset_ascii;
continue;
break_loop: