Unicode Utilities: BIDI (UBA) C Reference
Unicode Utilities: BIDI (UBA) C Reference
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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.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Level
Reordered Display
Display pos.
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
10
Character
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 17.0.0 library for UBA version 17.0
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:
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:
Seqs (L= 1):
Seqs (L= 2):
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:
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:
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:
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:
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:
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:
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:
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:
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:
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:
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]