首先,用户调用replace_case_insensitive函数,随后内部调用正则替换功能。 RegexFunctionUserRegexFunctionUserreplace_case_insensitive(text, old, new)re.compile(re.escape(old), re.IGNORECASE)返回正则表达式pattern.sub(new, text)返回替换后的字符串返回结果 下面是实现编译所需的命令流,简化理解 Python 文件的编译过...
new_string = case_insensitive_replace(string, "hello", "Hi") print(new_string) # 输出:Hi World 在上述示例中,case_insensitive_replace()函数接受三个参数:原始字符串string、要替换的旧字符串old和替换的新字符串new。函数内部使用re.escape()函数来转义旧字符串中的特殊字符,并使用re.IGNORECASE标志来忽...
defcase_insensitive_replace(string,old,new):""" Performs acase-insensitive replacement on a string.Args:string:The string to searchin.old:The string to replace.new:The string to replace oldwith.""" new_string=string.lower().replace(old.lower(),new)returnnew_stringif__name__=="__main__"...
import re def case_insensitive_replace(string, old, new): """ Performs a case-insensitive replacement on a string. Args: string: The string to search in. old: The string to replace. new: The string to replace old with. """ pattern = re.compile(old, re.IGNORECASE) new_string = patt...
在这个示例中,我们定义了一个函数case_insensitive_replace,它接收原始文本、要替换的字符串和替换成的新字符串。在re.sub()中使用了re.IGNORECASE标志,以实现不区分大小写的匹配。 3. 状态图 在进行字符串替换的过程中,我们可以将整个过程抽象为一个状态图。状态图有助于我们理解替换操作的各个步骤以及状态之间的...
def filter(self, inputtext): text = self.remove_dates(text) text = self.remove_email(text) text = self.remove_postal_codes(text) text = self.remove_numbers(text) text = self.keyword_processor_case_insensitive.replace_keywords(text) text = self.keyword_processor_case_sensi...
Write a Python program to do case-insensitive string replacement. Sample Solution: Python Code: importre text="PHP Exercises"print("Original Text: ",text)redata=re.compile(re.escape('php'),re.IGNORECASE)new_text=redata.sub('php','PHP Exercises')print("Using 'php' replace PHP")print("New...
pythontext = "Hello World"pattern = r"hello" # Case-sensitive searchmatch_case_sensitive = re.search(pattern, text)print(match_case_sensitive) # Output: Nonepattern_ignore_case = r"hello"match_ignore_case = re.search(pattern_ignore_case, text, re.IGNORECASE) # Case-insensitive search...
replace用于将指定模式替换为另一个模式。通过传入空字符串,它也常常用于删除模式: In [146]: val.replace(',', '::') Out[146]: 'a::b:: guido' In [147]: val.replace(',', '') Out[147]: 'ab guido' 表7-3列出了Python内置的字符串方法。
High performance Trie and Ahocorasick automata (AC automata) Keyword Match & Replace Tool for python. Correct case insensitive implementation! - chenkovsky/cyac