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gh-109559: Update `unicodedata` for Unicode 15.1 by SnoopJ · Pull Request #109560 · python/cpython · GitHub

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gh-109559: Update unicodedata for Unicode 15.1 #109560

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Merged
benjaminp merged 12 commits into from
Sep 20, 2023
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gh-109559: Update unicodedata for Unicode 15.1 #109560

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21e297c
Bump UNIDATA_VERSION to 15.1
SnoopJ Sep 19, 2023
122a732
Label CJK ranges as in unicodedata.c
SnoopJ Sep 19, 2023
6d5238e
Add CJK Ideograph Extension I to CJK ranges
SnoopJ Sep 19, 2023
cd9cbf5
Handle non-binary character properties
SnoopJ Sep 19, 2023
818a36c
Update Unicode DBs for Unicode 15.1
SnoopJ Sep 19, 2023
24088ca
Add NEWS fragment
SnoopJ Sep 19, 2023
110c552
Use proper Sphinx syntax for NEWS fragment
SnoopJ Sep 19, 2023
d8d9f98
Use common in-source ordering for CJK extension blocks
SnoopJ Sep 19, 2023
27b1c13
Bump Unicode version reference in pydoc_data
SnoopJ Sep 19, 2023
af730eb
Revert "Bump Unicode version reference in pydoc_data"
SnoopJ Sep 20, 2023
0db6920
Update UCD version references to 15.1.0
SnoopJ Sep 20, 2023
44f6770
Update 2023-09-19-01-22-43.gh-issue-109559.ijaycU.rst
benjaminp Sep 20, 2023
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8 changes: 4 additions & 4 deletions Doc/library/stdtypes.rst
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Expand Up @@ -1641,7 +1641,7 @@ expression support in the :mod:`re` module).

The casefolding algorithm is
`described in section 3.13 'Default Case Folding' of the Unicode Standard
<https://www.unicode.org/versions/Unicode15.0.0/ch03.pdf>`__.
<https://www.unicode.org/versions/Unicode15.1.0/ch03.pdf>`__.

.. versionadded:: 3.3

Expand Down Expand Up @@ -1805,7 +1805,7 @@ expression support in the :mod:`re` module).
property being one of "Lm", "Lt", "Lu", "Ll", or "Lo". Note that this is different
from the `Alphabetic property defined in the section 4.10 'Letters, Alphabetic, and
Ideographic' of the Unicode Standard
<https://www.unicode.org/versions/Unicode15.0.0/ch04.pdf>`_.
<https://www.unicode.org/versions/Unicode15.1.0/ch04.pdf>`_.


.. method:: str.isascii()
Expand Down Expand Up @@ -1941,7 +1941,7 @@ expression support in the :mod:`re` module).

The lowercasing algorithm used is
`described in section 3.13 'Default Case Folding' of the Unicode Standard
<https://www.unicode.org/versions/Unicode15.0.0/ch03.pdf>`__.
<https://www.unicode.org/versions/Unicode15.1.0/ch03.pdf>`__.


.. method:: str.lstrip([chars])
Expand Down Expand Up @@ -2290,7 +2290,7 @@ expression support in the :mod:`re` module).

The uppercasing algorithm used is
`described in section 3.13 'Default Case Folding' of the Unicode Standard
<https://www.unicode.org/versions/Unicode15.0.0/ch03.pdf>`__.
<https://www.unicode.org/versions/Unicode15.1.0/ch03.pdf>`__.


.. method:: str.zfill(width)
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8 changes: 4 additions & 4 deletions Doc/library/unicodedata.rst
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Expand Up @@ -17,8 +17,8 @@

This module provides access to the Unicode Character Database (UCD) which
defines character properties for all Unicode characters. The data contained in
this database is compiled from the `UCD version 15.0.0
<https://www.unicode.org/Public/15.0.0/ucd>`_.
this database is compiled from the `UCD version 15.1.0
<https://www.unicode.org/Public/15.1.0/ucd>`_.

The module uses the same names and symbols as defined by Unicode
Standard Annex #44, `"Unicode Character Database"
Expand Down Expand Up @@ -175,6 +175,6 @@ Examples:

.. rubric:: Footnotes

.. [#] https://www.unicode.org/Public/15.0.0/ucd/NameAliases.txt
.. [#] https://www.unicode.org/Public/15.1.0/ucd/NameAliases.txt

.. [#] https://www.unicode.org/Public/15.0.0/ucd/NamedSequences.txt
.. [#] https://www.unicode.org/Public/15.1.0/ucd/NamedSequences.txt
8 changes: 4 additions & 4 deletions Doc/reference/lexical_analysis.rst
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Expand Up @@ -315,16 +315,16 @@ The Unicode category codes mentioned above stand for:
* *Nd* - decimal numbers
* *Pc* - connector punctuations
* *Other_ID_Start* - explicit list of characters in `PropList.txt
<https://www.unicode.org/Public/15.0.0/ucd/PropList.txt>`_ to support backwards
<https://www.unicode.org/Public/15.1.0/ucd/PropList.txt>`_ to support backwards
compatibility
* *Other_ID_Continue* - likewise

All identifiers are converted into the normal form NFKC while parsing; comparison
of identifiers is based on NFKC.

A non-normative HTML file listing all valid identifier characters for Unicode
15.0.0 can be found at
https://www.unicode.org/Public/15.0.0/ucd/DerivedCoreProperties.txt
15.1.0 can be found at
https://www.unicode.org/Public/15.1.0/ucd/DerivedCoreProperties.txt


.. _keywords:
Expand Down Expand Up @@ -1045,4 +1045,4 @@ occurrence outside string literals and comments is an unconditional error:

.. rubric:: Footnotes

.. [#] https://www.unicode.org/Public/15.0.0/ucd/NameAliases.txt
.. [#] https://www.unicode.org/Public/15.1.0/ucd/NameAliases.txt
1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2023-09-19-01-22-43.gh-issue-109559.ijaycU.rst
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@@ -0,0 +1 @@
Update :mod:`unicodedata` database to Unicode 15.1.0.
1 change: 1 addition & 0 deletions Modules/unicodedata.c
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Expand Up @@ -1035,6 +1035,7 @@ is_unified_ideograph(Py_UCS4 code)
(0x2B740 <= code && code <= 0x2B81D) || /* CJK Ideograph Extension D */
(0x2B820 <= code && code <= 0x2CEA1) || /* CJK Ideograph Extension E */
(0x2CEB0 <= code && code <= 0x2EBE0) || /* CJK Ideograph Extension F */
(0x2EBF0 <= code && code <= 0x2EE5D) || /* CJK Ideograph Extension I */
(0x30000 <= code && code <= 0x3134A) || /* CJK Ideograph Extension G */
(0x31350 <= code && code <= 0x323AF); /* CJK Ideograph Extension H */
}
Expand Down
2,630 changes: 1,486 additions & 1,144 deletions Modules/unicodedata_db.h
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32,946 changes: 16,476 additions & 16,470 deletions Modules/unicodename_db.h
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1,963 changes: 1,013 additions & 950 deletions Objects/unicodetype_db.h
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29 changes: 17 additions & 12 deletions Tools/unicode/makeunicodedata.py
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Expand Up @@ -44,7 +44,7 @@
# * Doc/library/stdtypes.rst, and
# * Doc/library/unicodedata.rst
# * Doc/reference/lexical_analysis.rst (two occurrences)
UNIDATA_VERSION = "15.0.0"
UNIDATA_VERSION = "15.1.0"
UNICODE_DATA = "UnicodeData%s.txt"
COMPOSITION_EXCLUSIONS = "CompositionExclusions%s.txt"
EASTASIAN_WIDTH = "EastAsianWidth%s.txt"
Expand Down Expand Up @@ -101,15 +101,16 @@

# these ranges need to match unicodedata.c:is_unified_ideograph
cjk_ranges = [
('3400', '4DBF'),
('4E00', '9FFF'),
('20000', '2A6DF'),
('2A700', '2B739'),
('2B740', '2B81D'),
('2B820', '2CEA1'),
('2CEB0', '2EBE0'),
('30000', '3134A'),
('31350', '323AF'),
('3400', '4DBF'), # CJK Ideograph Extension A CJK
('4E00', '9FFF'), # CJK Ideograph
('20000', '2A6DF'), # CJK Ideograph Extension B
('2A700', '2B739'), # CJK Ideograph Extension C
('2B740', '2B81D'), # CJK Ideograph Extension D
('2B820', '2CEA1'), # CJK Ideograph Extension E
('2CEB0', '2EBE0'), # CJK Ideograph Extension F
('2EBF0', '2EE5D'), # CJK Ideograph Extension I

SnoopJ Sep 19, 2023

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

The range check that occurs later in this file implicitly assumes this list is in sorted order. It seems simpler to have an idiosyncratic order here than to try to introduce sorted() or somesuch.
('30000', '3134A'), # CJK Ideograph Extension G
('31350', '323AF'), # CJK Ideograph Extension H
]


Expand Down Expand Up @@ -1105,11 +1106,15 @@ def __init__(self, version, cjk_check=True):
table[i].east_asian_width = widths[i]
self.widths = widths

for char, (p,) in UcdFile(DERIVED_CORE_PROPERTIES, version).expanded():
for char, (propname, *propinfo) in UcdFile(DERIVED_CORE_PROPERTIES, version).expanded():
if propinfo:
# this is not a binary property, ignore it
continue
Comment on lines +1109 to +1112

SnoopJ Sep 19, 2023

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

All the properties defined in DerivedCoreProperties.txt happened to be binary until the latest update, so this tool was getting away with the assumption that they are always binary.

As of Unicode 15.1, this file also includes definitions that use the Indict_Conjunct_Break (InCB) property, which is an enumeration.

With this change, the loop skips over any non-binary properties, since we have nothing to do with them.

benjaminp Sep 19, 2023

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

It seems like it would be safer to explicitly ignore Indict_Conjunct_Break rather than throw out everything with a second column.

SnoopJ Sep 19, 2023

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Is there a particular failure mode you have in mind? My rationale here was that the current internalized DB only cares about binary properties in this file, but in practice any of the property types enumerated by UAX#44 could appear in a future revision.

I'm not strongly opposed to ignoring the specific property that breaks the tool against the current revision, but my rationale was that it seems safer to prevent this class of failure in the future if/when additional non-binary properties are added.

if table[char]:
# Some properties (e.g. Default_Ignorable_Code_Point)
# apply to unassigned code points; ignore them
table[char].binary_properties.add(p)
table[char].binary_properties.add(propname)

for char_range, value in UcdFile(LINE_BREAK, version):
if value not in MANDATORY_LINE_BREAKS:
Expand Down
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