fribidi_get_par_embedding_levels_ex(3)                     Programmer's Manual

NAME
       fribidi_get_par_embedding_levels_ex - get bidi embedding levels of a
       paragraph

SYNOPSIS
       #include <../fribidi/lib/fribidi.h>

       FriBidiLevel fribidi_get_par_embedding_levels_ex
       (
            const FriBidiCharType *bidi_types,
            const FriBidiBracketType *bracket_types,
            const FriBidiStrIndex len,
            FriBidiParType *pbase_dir,
            FriBidiLevel *embedding_levels
       );

PARAMETERS
       const FriBidiCharType *bidi_types
              Input list of bidi types as returned by
              fribidi_get_bidi_types().

              Since there are 23 possible values for a const FriBidiCharType,
              they are not all listed here.

       const FriBidiBracketType *bracket_types
              Input list of bracket types as returned by
              fribidi_get_bracket_types().

       const FriBidiStrIndex len
              Input string length of the paragraph.

       FriBidiParType *pbase_dir
              Requested and resolved paragraph base direction.

              Possible values for a FriBidiParType are as follows:
              FRIBIDI_PAR_LTR Left-To-Right paragraph.
              FRIBIDI_PAR_RTL Right-To-Left paragraph.
              FRIBIDI_PAR_ON  DirectiOn-Neutral paragraph.
              FRIBIDI_PAR_WLTR
                              Weak Left To Right paragraph.
              FRIBIDI_PAR_WRTL
                              Weak Right To Left paragraph.

       FriBidiLevel *embedding_levels
              Output list of embedding levels.

DESCRIPTION
       This function finds the bidi embedding levels of a single paragraph, as
       defined by the Unicode Bidirectional Algorithm available at
       http://www.unicode.org/reports/tr9/.  This function implements rules P2
       to I1 inclusive, and parts 1 to 3 of L1, except for rule X9 which is
       implemented in fribidi_remove_bidi_marks().  Part 4 of L1 is
       implemented in fribidi_reorder_line().

       There are a few macros defined in fribidi-bidi-types.h to work with
       this embedding levels.

RETURNS
       Maximum level found plus one, or zero if any error occurred (memory
       allocation failure most probably).

SEE ALSO
       fribidi_shape_arabic(3), fribidi_get_par_direction(3),
       fribidi_reorder_line(3), fribidi_get_bidi_type(3),
       fribidi_get_bidi_types(3), fribidi_get_bidi_type_name(3),
       fribidi_charset_to_unicode(3), fribidi_unicode_to_charset(3),
       fribidi_parse_charset(3), fribidi_debug_status(3),
       fribidi_set_debug(3), fribidi_mirroring_status(3),
       fribidi_set_mirroring(3), fribidi_reorder_nsm_status(3),
       fribidi_set_reorder_nsm(3), fribidi_log2vis_get_embedding_levels(3),
       fribidi_get_type(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_remove_bidi_marks(3), fribidi_log2vis(3)

c2man fribidi-bidi.h           26 September 2024
                                        fribidi_get_par_embedding_levels_ex(3)