Unicode Utilities: BIDI (UBA) C Reference
Unmarked properties are from Unicode V16.0.0; the beta properties are from Unicode V17.0.0β. For more information, see Unicode Utilities Beta.
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Shows processing of a single paragraph of text by the Unicode Bidirectional Algorithm (UBA),
Versions
6.2
through
14.0,
using the C Reference Implementation, Version
14.0.
Source
Resolved Levels
| Memory pos. |
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |
| Level |
1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 |
|
Reordered Display
| Display pos. |
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |
| Memory pos. |
25 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 12 | 11 | 7 | 8 | 9 | 10 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| Character |
! | m | a | r | k | | ( | ͦ | v | . | 2 | ) | ͨ | | | 1 | – | 3 | % | | | ك | ْ | ر | ا | م |
| Code point |
0021 | 006D | 0061 | 0072 | 006B | 0020 | 0028 | 0366 | 0076 | 002E | 0032 | 0029 | 0368 | 0020 | 2069 | 0031 | 2013 | 0033 | 0025 | 2066 | 0020 | 0643 | 0652 | 0631 | 0627 | 0645 |
|
Analysis
Note: Initialized bidiref 16.0.0 library for UBA version 16.0
Trace: Entering br_UBA_63
Trace: Entering br_UBA63_ParagraphEmbeddingLevel [P2, P3]
Current State: 2
Paragraph Dir: 2 (Dir_Auto), Paragraph Embed Level: 1, TextLen: 26
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: AL AL AL NSM AL WS LRI EN ON EN ET PDI WS L L L L WS ON NSM L CS EN ON NSM ON
Levels: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Trace: Entering br_UBA63_ExplicitEmbeddingLevels [X1-X8]
Current State: 3
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: AL AL AL NSM AL WS LRI EN ON EN ET PDI WS L L L L WS ON NSM L CS EN ON NSM ON
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Trace: Entering br_UBA_DeleteFormatCharacters [X9]
Trace: Entering br_UBA_IdentifyRuns [X10]
Current State: 5
Position: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: AL AL AL NSM AL WS LRI EN ON EN ET PDI WS L L L L WS ON NSM L CS EN ON NSM ON
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Runs: <R------------------------------L> <L---------------L> <L----------------------------------------------------------------------R>
Trace: Entering br_UBA_IdentifyIsolatingRunSequences [X10]
Current State: 6
Position: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: AL AL AL NSM AL WS LRI EN ON EN ET PDI WS L L L L WS ON NSM L CS EN ON NSM ON
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Runs: <R------------------------------L> <L---------------L> <L----------------------------------------------------------------------R>
Seqs (L= 1): <R-------------------------------[.....................]-----------------------------------------------------------------------R>
Seqs (L= 2): <L---------------L>
Trace: Entering br_UBA_ResolveCombiningMarks [W1]
Current State: 7
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: AL AL AL AL AL WS LRI EN ON EN ET PDI WS L L L L WS ON ON L CS EN ON ON ON
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Runs: <R------------------------------L> <L---------------L> <L----------------------------------------------------------------------R>
Trace: Entering br_UBA_ResolveEuropeanNumbers [W2]
Trace: Entering br_UBA_ResolveAL [W3]
Current State: 9
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: R R R R R WS LRI EN ON EN ET PDI WS L L L L WS ON ON L CS EN ON ON ON
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Runs: <R------------------------------L> <L---------------L> <L----------------------------------------------------------------------R>
Trace: Entering br_UBA_ResolveSeparators [W4]
Trace: Entering br_UBA_ResolveTerminators [W5]
Current State: 11
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: R R R R R WS LRI EN ON EN EN PDI WS L L L L WS ON ON L CS EN ON ON ON
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Runs: <R------------------------------L> <L---------------L> <L----------------------------------------------------------------------R>
Trace: Entering br_UBA_ResolveESCSET [W6]
Current State: 12
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: R R R R R WS LRI EN ON EN EN PDI WS L L L L WS ON ON L ON EN ON ON ON
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Runs: <R------------------------------L> <L---------------L> <L----------------------------------------------------------------------R>
Trace: Entering br_UBA_ResolveEN [W7]
Current State: 13
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: R R R R R WS LRI L ON L L PDI WS L L L L WS ON ON L ON L ON ON ON
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Runs: <R------------------------------L> <L---------------L> <L----------------------------------------------------------------------R>
Trace: Entering br_UBA_ResolvePairedBrackets [N0]
Current State: 14
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: R R R R R WS LRI L ON L L PDI WS L L L L WS L L L ON L L L ON
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Runs: <R------------------------------L> <L---------------L> <L----------------------------------------------------------------------R>
Trace: Entering br_UBA_ResolveNeutralsByContext [N1]
Current State: 15
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: R R R R R WS LRI L L L L PDI WS L L L L L L L L L L L L ON
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Runs: <R------------------------------L> <L---------------L> <L----------------------------------------------------------------------R>
Trace: Entering br_UBA_ResolveNeutralsByLevel [N2]
Current State: 16
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: R R R R R R R L L L L R R L L L L L L L L L L L L R
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Runs: <R------------------------------L> <L---------------L> <L----------------------------------------------------------------------R>
Trace: Entering br_UBA_ResolveImplicitLevels [I1, I2]
Current State: 17
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: R R R R R R R L L L L R R L L L L L L L L L L L L R
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 2 2 2 2 2 2 2 2 2 2 2 2 1
Runs: <R------------------------------L> <L---------------L> <L----------------------------------------------------------------------R>
Trace: Entering br_UBA63_ResetWhitespaceLevels [L1]
Trace: Entering br_UBA_ReverseLevels [L2]
Current State: 19
Text: 0645 0627 0631 0652 0643 0020 2066 0031 2013 0033 0025 2069 0020 006D 0061 0072 006B 0020 0028 0366 0076 002E 0032 0029 0368 0021
Bidi_Class: R R R R R R R L L L L R R L L L L L L L L L L L L R
Levels: 1 1 1 1 1 1 1 2 2 2 2 1 1 2 2 2 2 2 2 2 2 2 2 2 2 1
Runs: <R------------------------------L> <L---------------L> <L----------------------------------------------------------------------R>
Order: [25 13 14 15 16 17 18 19 20 21 22 23 24 12 11 7 8 9 10 6 5 4 3 2 1 0]
Paragraph Embedding Level: 1
Resolved Levels: [1 1 1 1 1 1 1 2 2 2 2 1 1 2 2 2 2 2 2 2 2 2 2 2 2 1]
Resolved Order: [25 13 14 15 16 17 18 19 20 21 22 23 24 12 11 7 8 9 10 6 5 4 3 2 1 0]