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import hashlib
import sys
import re
def hash_text_sha256(text: str) -> str:
hash_object = hashlib.sha256(text.encode())
return hash_object.hexdigest()
def contains_regex_characters(s: str) -> bool:
# Pattern to match special regex characters
regex_chars_pattern = r'[\.\^\$\*\+\?\{\}\[\]\\|()]'
# Search for special regex characters in the string
return re.search(regex_chars_pattern, s)
def strip_anchor_chars(s: str) -> str:
# Strip the first character if it's '^'
if s.startswith('^'):
s = s[1:]
# Strip the last character if it's '$'
if s.endswith('$'):
s = s[:-1]
return s
def contains_punctuation(s: str) -> bool:
# Pattern to match punctuation characters
punctuation_pattern = r'[^\w\s_]'
# Search for punctuation characters in the string
return re.search(punctuation_pattern, s)
def is_numbered_bullet_list_item(s: str) -> int:
# Regular expression to match the series of numbers followed by a dot
pattern = r'^\d+\.'
match = re.match(pattern, s)
if match:
# If there's a match, return the index right after the matched pattern
return match.end()
else:
# If no match, return an invalid value
return -1
def replace_unsupported_chars(text, replacement='?'):
encoding = sys.getdefaultencoding() # Get the default system encoding
return text.encode(encoding, errors='replace').decode(encoding).replace('\ufffd', replacement)
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