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3 .TH "fribidi_get_par_embedding_levels_ex" 3 "20 July 2018" "c2man fribidi-bidi.h" "Programmer's Manual"
5 fribidi_get_par_embedding_levels_ex \- get bidi embedding levels of a paragraph
10 extern FriBidiLevel fribidi_get_par_embedding_levels_ex
14 const FriBidiCharType *bidi_types,
16 const FriBidiBracketType *bracket_types,
18 const FriBidiStrIndex len,
20 FriBidiParType *pbase_dir,
22 FriBidiLevel *embedding_levels
28 .B "const FriBidiCharType *bidi_types"
29 Input list of bidi types as returned by
30 fribidi_get_bidi_types().
32 Since there are 23 possible values for a \fBconst FriBidiCharType\fR, they are not all listed here.
34 .B "const FriBidiBracketType *bracket_types"
35 Input list of bracket types as returned by
36 fribidi_get_bracket_types().
38 .B "const FriBidiStrIndex len"
39 Input string length of the paragraph.
41 .B "FriBidiParType *pbase_dir"
42 Requested and resolved paragraph
45 Possible values for a \fBFriBidiParType\fR are as follows:
49 .nr TL \w'FRIBIDI_PAR_WLTR'u+0.2i
53 Left-To-Right paragraph.
56 Right-To-Left paragraph.
59 DirectiOn-Neutral paragraph.
61 \fBFRIBIDI_PAR_WLTR\fR
62 Weak Left To Right paragraph.
64 \fBFRIBIDI_PAR_WRTL\fR
65 Weak Right To Left paragraph.
69 .B "FriBidiLevel *embedding_levels"
70 Output list of embedding levels.
72 This function finds the bidi embedding levels of a single paragraph,
73 as defined by the Unicode Bidirectional Algorithm available at
74 http://www.unicode.org/reports/tr9/. This function implements rules P2 to
75 I1 inclusive, and parts 1 to 3 of L1, except for rule X9 which is
76 implemented in fribidi_remove_bidi_marks(). Part 4 of L1 is implemented
77 in fribidi_reorder_line().
79 There are a few macros defined in fribidi-bidi-types.h to work with this
82 Maximum level found plus one, or zero if any error occurred
83 (memory allocation failure most probably).
85 fribidi_shape_arabic(3),
86 fribidi_get_par_direction(3),
87 fribidi_reorder_line(3),
88 fribidi_get_bidi_type(3),
89 fribidi_get_bidi_types(3),
90 fribidi_get_bidi_type_name(3),
91 fribidi_debug_status(3),
93 fribidi_charset_to_unicode(3),
94 fribidi_unicode_to_charset(3),
95 fribidi_parse_charset(3),
96 fribidi_mirroring_status(3),
97 fribidi_set_mirroring(3),
98 fribidi_reorder_nsm_status(3),
99 fribidi_set_reorder_nsm(3),
100 fribidi_log2vis_get_embedding_levels(3),
102 fribidi_get_type_internal(3),
103 fribidi_get_par_embedding_levels(3),
104 fribidi_join_arabic(3),
105 fribidi_get_joining_type(3),
106 fribidi_get_joining_types(3),
107 fribidi_get_joining_type_name(3),
108 fribidi_get_mirror_char(3),
109 fribidi_shape_mirroring(3),
110 fribidi_get_bracket(3),
111 fribidi_get_bracket_types(3),
113 fribidi_remove_bidi_marks(3)