diff options
Diffstat (limited to 'lib/fribidi-bidi.h')
| -rw-r--r-- | lib/fribidi-bidi.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/lib/fribidi-bidi.h b/lib/fribidi-bidi.h index dd2de67..6faba16 100644 --- a/lib/fribidi-bidi.h +++ b/lib/fribidi-bidi.h @@ -141,6 +141,35 @@ fribidi_get_par_embedding_levels ( * to reflect where each glyph ends up. */ ) FRIBIDI_GNUC_WARN_UNUSED; +#define fribidi_reorder_runs FRIBIDI_NAMESPACE(reorder_runs) +/* fribidi_reorder_runs - reorder runs of logical string to visual + * + * This function reorders all runs from logical to final visual order. This + * function implements part 4 of rule L1 and rule L2 of the Unicode + * Bidirectional Algorithm available at + * http://www.unicode.org/reports/tr9/#Reordering_Resolved_Levels. + * + * You should provide the bidi types as returned by fribidi_get_bidi_types() + * and the resolved embedding levels as set by + * fribidi_get_par_embedding_levels(). Also note that the embedding levels may + * change a bit. To be exact, the embedding level of any sequence of white + * space at the end of line is reset to the paragraph embedding level (That is + * part 4 of rule L1). + * + * The runs array can be NULL and in this case no reordring will happen, only + * the count of the runs will be returned. + * + * Returns: number of the runs. + */ +FRIBIDI_ENTRY FriBidiStrIndex +fribidi_reorder_runs ( + const FriBidiCharType *bidi_types, /* input list of bidi types as returned by fribidi_get_bidi_types() */ + const FriBidiStrIndex len, /* input length of the line */ + const FriBidiParType base_dir, /* resolved paragraph base direction */ + FriBidiLevel *embedding_levels, /* input list of embedding levels, as returned by fribidi_get_par_embedding_levels */ + FriBidiRun *runs /* Fribidi run information ( pos of run, the length of the run ,level of the run) */ +) FRIBIDI_GNUC_WARN_UNUSED; + #include "fribidi-enddecls.h" #endif /* !_FRIBIDI_BIDI_H */ |