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Eli Zaretskii authored
src/xdisp.c (set_cursor_from_row): Consider candidate row a win if its glyph represents a newline and point is on that newline. Fixes cursor positioning on the newline at EOL of R2L text within L2R paragraph, and vice versa. (try_cursor_movement): Check continued rows, in addition to continuation rows. Fixes unwarranted scroll when point enters a continued line of R2L text within an L2R paragraph, or vice versa. (cursor_row_p): Consider the case of point being equal to MATRIX_ROW_END_CHARPOS. Prevents cursor being stuck when moving from the end of a short line to the beginning of a continued line of R2L text within L2R paragraph. (RECORD_MAX_MIN_POS): For max_pos, use IT_CHARPOS even for composed characters.
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