gh-76535: Add PyUCS4_ToLower() function#139333

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vstinner wants to merge 19 commits intopython:mainfrom

vstinner:unicode_tolower2

Commits on Sep 25, 2025

gh-76535: Make `PyUnicode_ToLowerFull` and friends public

lysnikolaou
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Address feedback; add size parameter and do PyUnicode_ToFolded as well

lysnikolaou
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📜🤖 Added by blurb_it.

blurb-it[bot]
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Address more feedback; assert return value and raise ValueError

lysnikolaou
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Add tests

lysnikolaou
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Document the maximum numbers of characters needed in the buffer

lysnikolaou
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vstinner
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Address feedback; test more characters and refactor _testcapi functions

lysnikolaou
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Address more review comments

lysnikolaou
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Disallow passing NULL

lysnikolaou
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Only return NULL when chars < 0 in C test functions

lysnikolaou
and
vstinner
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Use Py_ssize_t and don't check overflow in loop

lysnikolaou
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vstinner
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Use Py_ssize_t for return value variable in unicodeobject.c

lysnikolaou
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Address feedback; Rename to PyUCS4_*, define macro and test small buffer case

lysnikolaou
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Address feedback

lysnikolaou
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Replace Py_UCS4 with (const Py_UCS4*, Py_ssize_t)
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closes gh-138706: update Unicode to 17.0.0 (#138719)

benjaminp
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Update Tools/unicode/makeunicodedata.py

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gh-76535: Add PyUCS4_ToLower() function#139333

gh-76535: Add PyUCS4_ToLower() function#139333
vstinner wants to merge 19 commits intopython:mainfrom
vstinner:unicode_tolower2

Commits on Sep 25, 2025

gh-76535: Make `PyUnicode_ToLowerFull` and friends public

Address feedback; add size parameter and do PyUnicode_ToFolded as well

📜🤖 Added by blurb_it.

Address more feedback; assert return value and raise ValueError

Add tests

Document the maximum numbers of characters needed in the buffer

Address feedback; test more characters and refactor _testcapi functions

Address more review comments

Disallow passing NULL

Only return NULL when chars < 0 in C test functions

Use Py_ssize_t and don't check overflow in loop

Use Py_ssize_t for return value variable in unicodeobject.c

Address feedback; Rename to PyUCS4_*, define macro and test small buffer case

Address feedback

Replace Py_UCS4 with (const Py_UCS4*, Py_ssize_t)

closes gh-138706: update Unicode to 17.0.0 (#138719)

Update Tools/unicode/makeunicodedata.py

Commits on Sep 30, 2025

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Update Modules/_testcapi/unicode.c

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gh-76535: Add PyUCS4_ToLower() function#139333vstinner wants to merge 19 commits intopython:mainpython/cpython:mainfrom vstinner:unicode_tolower2vstinner/cpython:unicode_tolower2Copy head branch name to clipboard

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Commits on Sep 25, 2025

Commits on Sep 30, 2025

gh-76535: Add PyUCS4_ToLower() function#139333
vstinner wants to merge 19 commits intopython:mainfrom
vstinner:unicode_tolower2