mirror of
https://github.com/python/cpython
synced 2024-11-05 18:12:54 +00:00
1863302d61
Create Tools/build/ directory. Move the following scripts from Tools/scripts/ to Tools/build/: * check_extension_modules.py * deepfreeze.py * freeze_modules.py * generate_global_objects.py * generate_levenshtein_examples.py * generate_opcode_h.py * generate_re_casefix.py * generate_sre_constants.py * generate_stdlib_module_names.py * generate_token.py * parse_html5_entities.py * smelly.py * stable_abi.py * umarshal.py * update_file.py * verify_ensurepip_wheels.py Update references to these scripts.
96 lines
2.7 KiB
Python
Executable file
96 lines
2.7 KiB
Python
Executable file
#! /usr/bin/env python3
|
|
# This script generates Lib/re/_casefix.py.
|
|
|
|
import collections
|
|
import sys
|
|
import unicodedata
|
|
|
|
SCRIPT_NAME = 'Tools/build/generate_re_casefix.py'
|
|
|
|
def update_file(file, content):
|
|
try:
|
|
with open(file, 'r', encoding='utf-8') as fobj:
|
|
if fobj.read() == content:
|
|
return False
|
|
except (OSError, ValueError):
|
|
pass
|
|
with open(file, 'w', encoding='utf-8') as fobj:
|
|
fobj.write(content)
|
|
return True
|
|
|
|
re_casefix_template = f"""\
|
|
# Auto-generated by {SCRIPT_NAME}.
|
|
|
|
# Maps the code of lowercased character to codes of different lowercased
|
|
# characters which have the same uppercase.
|
|
_EXTRA_CASES = {
|
|
%s
|
|
}
|
|
"""
|
|
|
|
def uname(i):
|
|
return unicodedata.name(chr(i), r'U+%04X' % i)
|
|
|
|
class hexint(int):
|
|
def __repr__(self):
|
|
return '%#06x' % self
|
|
|
|
def alpha(i):
|
|
c = chr(i)
|
|
return c if c.isalpha() else ascii(c)[1:-1]
|
|
|
|
|
|
def main(outfile='Lib/re/_casefix.py'):
|
|
# Find sets of characters which have the same uppercase.
|
|
equivalent_chars = collections.defaultdict(str)
|
|
for c in map(chr, range(sys.maxunicode + 1)):
|
|
equivalent_chars[c.upper()] += c
|
|
equivalent_chars = [t for t in equivalent_chars.values() if len(t) > 1]
|
|
|
|
# List of codes of lowercased characters which have the same uppercase.
|
|
equivalent_lower_codes = [sorted(t)
|
|
for s in equivalent_chars
|
|
for t in [set(ord(c.lower()) for c in s)]
|
|
if len(t) > 1]
|
|
|
|
bad_codes = []
|
|
for t in equivalent_lower_codes:
|
|
for i in t:
|
|
if i > 0xffff:
|
|
bad_codes.extend(t)
|
|
try:
|
|
bad_codes.append(ord(chr(i).upper()))
|
|
except (ValueError, TypeError):
|
|
pass
|
|
break
|
|
if bad_codes:
|
|
print('Case-insensitive matching may not work correctly for character:',
|
|
file=sys.stderr)
|
|
for i in sorted(bad_codes):
|
|
print(" '%s' (U+%04x, %s)" % (alpha(i), i, uname(i)),
|
|
file=sys.stderr)
|
|
sys.exit(1)
|
|
|
|
mapping = {i: tuple(j for j in t if i != j)
|
|
for t in equivalent_lower_codes
|
|
for i in t}
|
|
|
|
items = []
|
|
for i, t in sorted(mapping.items()):
|
|
items.append(' # %s: %s' % (
|
|
uname(i),
|
|
', '.join(map(uname, t)),
|
|
))
|
|
items.append(" %r: %r, # '%s': '%s'" % (
|
|
hexint(i),
|
|
tuple(map(hexint, t)),
|
|
alpha(i),
|
|
''.join(map(alpha, t)),
|
|
))
|
|
|
|
update_file(outfile, re_casefix_template % '\n'.join(items))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
import sys
|
|
main(*sys.argv[1:])
|