bin_encode_decode/common/
impl.rs

1use crate::*;
2
3impl<'a> Default for Charset<'a> {
4    fn default() -> Self {
5        Charset("")
6    }
7}
8
9impl<'a> Charset<'a> {
10    /// Creates a new instance of `Charset` with a default charset.
11    pub fn new() -> Self {
12        Charset::default()
13    }
14
15    /// Checks if the `charset` contains `CHARSET_LEN` unique characters.
16    ///
17    /// # Returns
18    /// Returns `true` if `charset` contains `CHARSET_LEN` unique characters, otherwise returns `false`.
19    pub(crate) fn judge_charset_safe(charset: &str) -> bool {
20        let mut hash_set: HashSet<char> = HashSet::new();
21        for tmp_char in charset.chars() {
22            hash_set.insert(tmp_char);
23        }
24        if hash_set.len() != CHARSET_LEN {
25            return false;
26        }
27        true
28    }
29
30    /// Sets the `charset` for the current `Charset` instance, if it is not already set.
31    ///
32    /// # Parameters
33    /// - `charset`: A string slice representing the charset to be used.
34    ///
35    /// # Returns
36    /// Returns a mutable reference to `Self` for method chaining.
37    pub fn charset<'b>(&mut self, charset: &'b str) -> &mut Self
38    where
39        'b: 'a,
40    {
41        if self.0 != Charset::default().0 {
42            return self;
43        }
44        self.0 = charset;
45        self
46    }
47
48    /// encodes a string based on the current `charset`.
49    ///
50    /// # Parameters
51    /// - `encode_str`: The string slice to be encoded.
52    ///
53    /// # Returns
54    /// Returns a `Result` containing the encoded `String` if successful, or a `EncodeError` if the charset is invalid.
55    pub fn encode(&self, encode_str: &str) -> Result<String, EncodeError> {
56        Encode::execute(self.0, encode_str)
57    }
58
59    /// decodes a string based on the current `charset`.
60    ///
61    /// # Parameters
62    /// - `decode_str`: The string slice to be decoded.
63    ///
64    /// # Returns
65    /// Returns a `Result` containing the decoded `String` if successful, or a `DecodeError` if the charset is invalid.
66    pub fn decode(&self, decode_str: &str) -> Result<String, DecodeError> {
67        Decode::execute(self.0, decode_str)
68    }
69}
bin_encode_decode/common/impl.rs

bin_encode_decode/common/
impl.rs
