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authorblackhao <13851610112@163.com>2025-08-22 02:51:50 -0500
committerblackhao <13851610112@163.com>2025-08-22 02:51:50 -0500
commit4aab4087dc97906d0b9890035401175cdaab32d4 (patch)
tree4e2e9d88a711ec5b1cfa02e8ac72a55183b99123 /.venv/lib/python3.12/site-packages/~ip/_internal/utils/encoding.py
parentafa8f50d1d21c721dabcb31ad244610946ab65a3 (diff)
2.0
Diffstat (limited to '.venv/lib/python3.12/site-packages/~ip/_internal/utils/encoding.py')
-rw-r--r--.venv/lib/python3.12/site-packages/~ip/_internal/utils/encoding.py36
1 files changed, 36 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/~ip/_internal/utils/encoding.py b/.venv/lib/python3.12/site-packages/~ip/_internal/utils/encoding.py
new file mode 100644
index 0000000..008f06a
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/~ip/_internal/utils/encoding.py
@@ -0,0 +1,36 @@
+import codecs
+import locale
+import re
+import sys
+from typing import List, Tuple
+
+BOMS: List[Tuple[bytes, str]] = [
+ (codecs.BOM_UTF8, "utf-8"),
+ (codecs.BOM_UTF16, "utf-16"),
+ (codecs.BOM_UTF16_BE, "utf-16-be"),
+ (codecs.BOM_UTF16_LE, "utf-16-le"),
+ (codecs.BOM_UTF32, "utf-32"),
+ (codecs.BOM_UTF32_BE, "utf-32-be"),
+ (codecs.BOM_UTF32_LE, "utf-32-le"),
+]
+
+ENCODING_RE = re.compile(rb"coding[:=]\s*([-\w.]+)")
+
+
+def auto_decode(data: bytes) -> str:
+ """Check a bytes string for a BOM to correctly detect the encoding
+
+ Fallback to locale.getpreferredencoding(False) like open() on Python3"""
+ for bom, encoding in BOMS:
+ if data.startswith(bom):
+ return data[len(bom) :].decode(encoding)
+ # Lets check the first two lines as in PEP263
+ for line in data.split(b"\n")[:2]:
+ if line[0:1] == b"#" and ENCODING_RE.search(line):
+ result = ENCODING_RE.search(line)
+ assert result is not None
+ encoding = result.groups()[0].decode("ascii")
+ return data.decode(encoding)
+ return data.decode(
+ locale.getpreferredencoding(False) or sys.getdefaultencoding(),
+ )