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download PDF document: fribidi_remove_bidi_marks.3.pdf

fribidi_remove_bidi_marks(3) Programmer's Manual fribidi_remove_bidi_marks(3)
NAME fribidi_remove_bidi_marks - remove bidi marks out of an string
SYNOPSIS #include <fribidi.h>
FriBidiStrIndex fribidi_remove_bidi_marks ( FriBidiChar *str, const FriBidiStrIndex len, FriBidiStrIndex *positions_to_this, FriBidiStrIndex *position_from_this_list, FriBidiLevel *embedding_levels );
PARAMETERS FriBidiChar *str Input string to clean.
const FriBidiStrIndex len Input string length.
FriBidiStrIndex *positions_to_this List mapping positions to the order used in str.
FriBidiStrIndex *position_from_this_list List mapping positions from the order used in str.
FriBidiLevel *embedding_levels List of embedding levels.
DESCRIPTION This function removes the bidi and boundary-neutral marks out of an string and the accompanying lists. It implements rule X9 of the Unicode Bidirectional Algorithm available at http://www.unicode.org/reports/tr9/#X9, with the exception that it removes U+200E LEFT-TO-RIGHT MARK and U+200F RIGHT-TO-LEFT MARK too.
If any of the input lists are NULL, the list is skipped. If str is the visual string, then positions_to_this is positions_L_to_V and position_from_this_list is positions_V_to_L; if str is the logical string, the other way. Moreover, the position maps should be filled with valid entries.
A position map pointing to a removed character is filled with -1. By the way, you should not use embedding_levels if str is visual string.
For best results this function should be run on a whole paragraph, not lines; but feel free to do otherwise if you know what you are doing.
RETURNS New length of the string, or -1 if an error occurred (memory allocation failure most probably).
SEE ALSO fribidi_shape_arabic(3), fribidi_get_par_direction(3), fribidi_get_par_embedding_levels_ex(3), fribidi_reorder_line(3), fribidi_get_type_internal(3), fribidi_get_par_embedding_levels(3), fribidi_join_arabic(3), fribidi_get_joining_type(3), fribidi_get_joining_types(3), fribidi_get_joining_type_name(3), fribidi_get_mirror_char(3), fribidi_shape_mirroring(3), fribidi_get_bracket(3), fribidi_get_bracket_types(3), fribidi_shape(3), fribidi_log2vis(3)
c2man fribidi.h 2 June 2021 fribidi_remove_bidi_marks(3)