src/bidi.c (bidi_cache_reset_to): New function.
(bidi_cache_reset): Call it.
(bidi_init_it, bidi_line_init): Initialize the bracket_pairing_pos
member to -1.
(bidi_resolve_explicit): Reset bracket_pairing_pos and
bracket_enclosed_type only if bracket_pairing_pos's value is not
ZV.
(MAX_BPA_STACK): Make sure the value is signed.
(PUSH_BPA_STACK): If the BPA stack overflows, don't bail out, but
stop pushing values onto the stack.
(bidi_find_bracket_pairs): If the bracketed text is only on the
base embedding level, remove all the states cached by this
function from the cache, and return zero, so that the brackets in
this segment of text are processed as normal neutrals.
(bidi_resolve_brackets): Detect the brackets that are to be
processed as neutrals, and don't call bidi_find_bracket_pairs on
them.
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GNU Emacs is free software: you can redistribute it and/or modify
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