actix_http/header/shared/
charset.rs

1use std::{fmt, str};
2
3use self::Charset::*;
4
5/// A MIME character set.
6///
7/// The string representation is normalized to upper case.
8///
9/// See <http://www.iana.org/assignments/character-sets/character-sets.xhtml>.
10#[derive(Debug, Clone, PartialEq, Eq)]
11#[allow(non_camel_case_types)]
12pub enum Charset {
13    /// US ASCII
14    Us_Ascii,
15    /// ISO-8859-1
16    Iso_8859_1,
17    /// ISO-8859-2
18    Iso_8859_2,
19    /// ISO-8859-3
20    Iso_8859_3,
21    /// ISO-8859-4
22    Iso_8859_4,
23    /// ISO-8859-5
24    Iso_8859_5,
25    /// ISO-8859-6
26    Iso_8859_6,
27    /// ISO-8859-7
28    Iso_8859_7,
29    /// ISO-8859-8
30    Iso_8859_8,
31    /// ISO-8859-9
32    Iso_8859_9,
33    /// ISO-8859-10
34    Iso_8859_10,
35    /// Shift_JIS
36    Shift_Jis,
37    /// EUC-JP
38    Euc_Jp,
39    /// ISO-2022-KR
40    Iso_2022_Kr,
41    /// EUC-KR
42    Euc_Kr,
43    /// ISO-2022-JP
44    Iso_2022_Jp,
45    /// ISO-2022-JP-2
46    Iso_2022_Jp_2,
47    /// ISO-8859-6-E
48    Iso_8859_6_E,
49    /// ISO-8859-6-I
50    Iso_8859_6_I,
51    /// ISO-8859-8-E
52    Iso_8859_8_E,
53    /// ISO-8859-8-I
54    Iso_8859_8_I,
55    /// GB2312
56    Gb2312,
57    /// Big5
58    Big5,
59    /// KOI8-R
60    Koi8_R,
61    /// An arbitrary charset specified as a string
62    Ext(String),
63}
64
65impl Charset {
66    fn label(&self) -> &str {
67        match *self {
68            Us_Ascii => "US-ASCII",
69            Iso_8859_1 => "ISO-8859-1",
70            Iso_8859_2 => "ISO-8859-2",
71            Iso_8859_3 => "ISO-8859-3",
72            Iso_8859_4 => "ISO-8859-4",
73            Iso_8859_5 => "ISO-8859-5",
74            Iso_8859_6 => "ISO-8859-6",
75            Iso_8859_7 => "ISO-8859-7",
76            Iso_8859_8 => "ISO-8859-8",
77            Iso_8859_9 => "ISO-8859-9",
78            Iso_8859_10 => "ISO-8859-10",
79            Shift_Jis => "Shift-JIS",
80            Euc_Jp => "EUC-JP",
81            Iso_2022_Kr => "ISO-2022-KR",
82            Euc_Kr => "EUC-KR",
83            Iso_2022_Jp => "ISO-2022-JP",
84            Iso_2022_Jp_2 => "ISO-2022-JP-2",
85            Iso_8859_6_E => "ISO-8859-6-E",
86            Iso_8859_6_I => "ISO-8859-6-I",
87            Iso_8859_8_E => "ISO-8859-8-E",
88            Iso_8859_8_I => "ISO-8859-8-I",
89            Gb2312 => "GB2312",
90            Big5 => "Big5",
91            Koi8_R => "KOI8-R",
92            Ext(ref s) => s,
93        }
94    }
95}
96
97impl fmt::Display for Charset {
98    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
99        f.write_str(self.label())
100    }
101}
102
103impl str::FromStr for Charset {
104    type Err = crate::Error;
105
106    fn from_str(s: &str) -> Result<Charset, crate::Error> {
107        Ok(match s.to_ascii_uppercase().as_ref() {
108            "US-ASCII" => Us_Ascii,
109            "ISO-8859-1" => Iso_8859_1,
110            "ISO-8859-2" => Iso_8859_2,
111            "ISO-8859-3" => Iso_8859_3,
112            "ISO-8859-4" => Iso_8859_4,
113            "ISO-8859-5" => Iso_8859_5,
114            "ISO-8859-6" => Iso_8859_6,
115            "ISO-8859-7" => Iso_8859_7,
116            "ISO-8859-8" => Iso_8859_8,
117            "ISO-8859-9" => Iso_8859_9,
118            "ISO-8859-10" => Iso_8859_10,
119            "SHIFT-JIS" => Shift_Jis,
120            "EUC-JP" => Euc_Jp,
121            "ISO-2022-KR" => Iso_2022_Kr,
122            "EUC-KR" => Euc_Kr,
123            "ISO-2022-JP" => Iso_2022_Jp,
124            "ISO-2022-JP-2" => Iso_2022_Jp_2,
125            "ISO-8859-6-E" => Iso_8859_6_E,
126            "ISO-8859-6-I" => Iso_8859_6_I,
127            "ISO-8859-8-E" => Iso_8859_8_E,
128            "ISO-8859-8-I" => Iso_8859_8_I,
129            "GB2312" => Gb2312,
130            "BIG5" => Big5,
131            "KOI8-R" => Koi8_R,
132            s => Ext(s.to_owned()),
133        })
134    }
135}
136
137#[cfg(test)]
138mod tests {
139    use super::*;
140
141    #[test]
142    fn test_parse() {
143        assert_eq!(Us_Ascii, "us-ascii".parse().unwrap());
144        assert_eq!(Us_Ascii, "US-Ascii".parse().unwrap());
145        assert_eq!(Us_Ascii, "US-ASCII".parse().unwrap());
146        assert_eq!(Shift_Jis, "Shift-JIS".parse().unwrap());
147        assert_eq!(Ext("ABCD".to_owned()), "abcd".parse().unwrap());
148    }
149
150    #[test]
151    fn test_display() {
152        assert_eq!("US-ASCII", format!("{}", Us_Ascii));
153        assert_eq!("ABCD", format!("{}", Ext("ABCD".to_owned())));
154    }
155}
actix_http/header/shared/charset.rs

actix_http/header/shared/
charset.rs
