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Eli Zaretskii authored
Continue working on paragraph base direction. Support per-buffer default paragraph direction. buffer.h (struct buffer): New member paragraph_direction. buffer.c (init_buffer_once): Initialize it. (syms_of_buffer): Declare Lisp variables default-paragraph-direction and paragraph-direction. dispextern.h (struct it): New member paragraph_embedding. xdisp.c (init_iterator): Initialize it from the buffer's value of paragraph-direction. <Qright_to_left, Qleft_to_right>: New variables. (syms_of_xdisp): Initialize and staticpro them. (set_iterator_to_next, next_element_from_buffer): Use the value of paragraph_embedding to determine the paragraph direction. bidi.c (bidi_line_init): Fix second argument to bidi_set_sor_type. (bidi_init_it): Initialize paragraph_dir to NEUTRAL_DIR. (bidi_get_next_char_visually): Record the last character of the separator in separator_limit, not the character after that. (bidi_find_paragraph_start): Accept character and byte positions instead of the whole iterator stricture. All callers changed.
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