Fix rare aborts in bidi.c.

[bpt/emacs.git] / src / ChangeLog

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+2013-02-11  Eli Zaretskii  <eliz@gnu.org>
+
+       * bidi.c (bidi_resolve_neutral): After finding the next
+       non-neutral character, accept NEUTRAL_ON type as well, because
+       directional control characters, such as LRE and RLE, have their
+       type converted to that by bidi_resolve_weak.  This avoids aborts
+       when LRE/RLE follows a run of neutrals.
+       (bidi_move_to_visually_next): Assert that return value of
+       bidi_peek_at_next_level is non-negative.  Negative values will
+       cause an infloop.
+
 2013-02-05  Daniel Colascione  <dancol@dancol.org>
 
        * emacs.c: Use execvp, not execv, when DAEMON_MUST_EXEC, so that