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Clean up more code

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The *NSYNC linked list API is good enough that it deserves to be part of
the C libray, so this change writes an improved version of it which uses
that offsetof() trick from the Linux Kernel. We vendor all of the *NSYNC
tests in third_party which helped confirm the needed refactoring is safe

This change also deletes more old code that didn't pan out. My goal here
is to work towards a vision where the Cosmopolitan core libraries become
less experimental and more focused on curation. This better reflects the
current level of quality we've managed to achieve.
This commit is contained in:
Justine Tunney 2023-07-06 06:57:28 -07:00
parent 88612a2cd7
commit 0a24b4fc3c
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GPG key ID: BE714B4575D6E328
268 changed files with 632 additions and 8688 deletions
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10
third_party/python/Modules/unicodedata.c vendored
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@ -7,7 +7,6 @@
#define PY_SSIZE_T_CLEAN
#include "third_party/python/Modules/unicodedata.h"
#include "libc/fmt/fmt.h"
#include "libc/intrin/bits.h"
#include "libc/nexgen32e/kompressor.h"
#include "third_party/python/Include/floatobject.h"
#include "third_party/python/Include/import.h"
@ -21,6 +20,7 @@
#include "third_party/python/Include/structmember.h"
#include "third_party/python/Include/ucnhash.h"
#include "third_party/python/Include/yoink.h"
#include "third_party/python/Modules/bextra.h"
#include "third_party/python/Modules/unicodedata_unidata.h"
/* clang-format off */
@ -405,7 +405,7 @@ unicodedata_UCD_decomposition_impl(PyObject *self, int chr)
/* high byte is number of hex bytes (usually one or two), low byte
is prefix code (from*/
count = _bextra(_PyUnicode_Decomp, index, _PyUnicode_DecompBits) >> 8;
count = BitFieldExtract(_PyUnicode_Decomp, index, _PyUnicode_DecompBits) >> 8;
/* XXX: could allocate the PyString up front instead
(strlen(prefix) + 5 * count + 1 bytes) */
@ -413,7 +413,7 @@ unicodedata_UCD_decomposition_impl(PyObject *self, int chr)
/* Based on how index is calculated above and _PyUnicode_Decomp is
generated from Tools/unicode/makeunicodedata.py, it should not be
possible to overflow _PyUnicode_DecompPrefix. */
prefix_index = _bextra(_PyUnicode_Decomp, index, _PyUnicode_DecompBits) & 255;
prefix_index = BitFieldExtract(_PyUnicode_Decomp, index, _PyUnicode_DecompBits) & 255;
assert(prefix_index < Py_ARRAY_LENGTH(_PyUnicode_DecompPrefix));
/* copy prefix */
@ -425,8 +425,8 @@ unicodedata_UCD_decomposition_impl(PyObject *self, int chr)
decomp[i++] = ' ';
assert(i < sizeof(decomp));
PyOS_snprintf(decomp + i, sizeof(decomp) - i, "%04X",
_bextra(_PyUnicode_Decomp, ++index,
_PyUnicode_DecompBits));
BitFieldExtract(_PyUnicode_Decomp, ++index,
_PyUnicode_DecompBits));
i += strlen(decomp + i);
}
return PyUnicode_FromStringAndSize(decomp, i);