How to use the function `ansiQuotedStr`?

The function ansiquotedstr can be used to convert a string to ANSI quoted string format.

An ANSI quoted string is a representation of a string where the string is surrounded by double quotes and special characters (such as carriage returns, line breaks, and quotes) are escaped. This format is commonly used in text files and programming languages.

Here is a possible example of implementing the ansiquotedstr function:

def ansiquotedstr(s):
    result = '"'  # 在字符串开始处添加双引号

    for c in s:
        if c == '\n':
            result += '\\n'  # 将换行符转义为\n
        elif c == '\r':
            result += '\\r'  # 将回车符转义为\r
        elif c == '"':
            result += '\\"'  # 将双引号转义为\"
        else:
            result += c

    result += '"'  # 在字符串结束处添加双引号
    return result

# 示例用法
s = 'Hello\nworld!'
quoted = ansiquotedstr(s)
print(quoted)  # 输出："Hello\nworld!"

In this example, we have defined a function called “ansiquotedstr” that takes a string as input and returns a string formatted as an ANSI quoted string. During the conversion process, we iterate through each character of the input string and handle any necessary escaping. Finally, we add double quotes at the beginning and end of the string to conform to the ANSI quoted string format.

Please note that this is just a simple example implementation and may not handle all possible special character scenarios. In a real-world application, it may be necessary to escape more special characters.