fribidi_get_par_direction - Online Linux Manual PageSection : 3
Updated : 20 July 2018
Source : c2man fribidi-bidi.h
Note : Programmer's Manual

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NAMEfribidi_get_par_direction − get base paragraph direction

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SYNOPSIS#include <fribidi.h> extern FriBidiParType fribidi_get_par_direction
(
const FriBidiCharType *bidi_types,
const FriBidiStrIndex len
);

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PARAMETERSconst 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 FriBidiStrIndex len"  Input string length.

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DESCRIPTIONThis function finds the base direction of a single paragraph, as defined by rule P2 of the Unicode Bidirectional Algorithm available at http://www.unicode.org/reports/tr9/#P2. You typically do not need this function as fribidi_get_par_embedding_levels() knows how to compute base direction itself, but you may need this to implement a more sophisticated paragraph direction handling. Note that you can pass more than a paragraph to this function and the direction of the first non-neutral paragraph is returned, which is a very good heuristic to set direction of the neutral paragraphs at the beginning of text. For other neutral paragraphs, you better use the direction of the previous paragraph.

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RETURNSBase pargraph direction. No weak paragraph direction is returned, only LTR, RTL, or ON. Possible values for an extern 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.

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SEE ALSOfribidi_shape_arabic(3), fribidi_get_par_embedding_levels_ex(3), fribidi_reorder_line(3), fribidi_get_bidi_type(3), fribidi_get_bidi_types(3), fribidi_get_bidi_type_name(3), fribidi_debug_status(3), fribidi_set_debug(3), fribidi_charset_to_unicode(3), fribidi_unicode_to_charset(3), fribidi_parse_charset(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) 0

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