1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
use std::fmt;
use std::str::FromStr;
/// A Mime charset.
///
/// The string representation is normalised to upper case.
///
/// See [http://www.iana.org/assignments/character-sets/character-sets.xhtml][url].
///
/// [url]: http://www.iana.org/assignments/character-sets/character-sets.xhtml
#[derive(Clone, PartialEq)]
pub struct Charset(Charset_);
impl Charset {
/// US ASCII
pub const US_ASCII: Charset = Charset(Charset_::Us_Ascii);
/// ISO-8859-1
pub const ISO_8859_1: Charset = Charset(Charset_::Iso_8859_1);
/// ISO-8859-2
pub const ISO_8859_2: Charset = Charset(Charset_::Iso_8859_2);
/// ISO-8859-3
pub const ISO_8859_3: Charset = Charset(Charset_::Iso_8859_3);
/// ISO-8859-4
pub const ISO_8859_4: Charset = Charset(Charset_::Iso_8859_4);
/// ISO-8859-5
pub const ISO_8859_5: Charset = Charset(Charset_::Iso_8859_5);
/// ISO-8859-6
pub const ISO_8859_6: Charset = Charset(Charset_::Iso_8859_6);
/// ISO-8859-7
pub const ISO_8859_7: Charset = Charset(Charset_::Iso_8859_7);
/// ISO-8859-8
pub const ISO_8859_8: Charset = Charset(Charset_::Iso_8859_8);
/// ISO-8859-9
pub const ISO_8859_9: Charset = Charset(Charset_::Iso_8859_9);
/// ISO-8859-10
pub const ISO_8859_10: Charset = Charset(Charset_::Iso_8859_10);
/// Shift_JIS
pub const SHIFT_JIS: Charset = Charset(Charset_::Shift_Jis);
/// EUC-JP
pub const EUC_JP: Charset = Charset(Charset_::Euc_Jp);
/// ISO-2022-KR
pub const ISO_2022_KR: Charset = Charset(Charset_::Iso_2022_Kr);
/// EUC-KR
pub const EUC_KR: Charset: Charset(Charset_::Euc_Kr);
/// ISO-2022-JP
pub const ISO_2022_JP: Charset = Charset(Charset_::Iso_2022_Jp);
/// ISO-2022-JP-2
pub const ISO_2022_JP_2: Charset = Charset(Charset_::Iso_2022_Jp_2);
/// ISO-8859-6-E
pub const ISO_8859_6_E: Charset = Charset(Charset_::Iso_8859_6_E);
/// ISO-8859-6-I
pub const ISO_8859_6_I: Charset = Charset(Charset_::Iso_8859_6_I);
/// ISO-8859-8-E
pub const ISO_8859_8_E: Charset = Charset(Charset_::Iso_8859_8_E);
/// ISO-8859-8-I
pub const ISO_8859_8_I: Charset = Charset(Charset_::Iso_8859_8_I);
/// GB2312
pub const GB_2312: Charset = Charset(Charset_::Gb2312);
/// Big5
pub const BIG_5: Charset = Charset(Charset_::Big5);
/// KOI8-R
pub const KOI8_R: Charset = Charset(Charset_::Koi8_R);
}
#[derive(Clone, Debug, PartialEq)]
#[allow(non_camel_case_types)]
enum Charset_ {
/// US ASCII
Us_Ascii,
/// ISO-8859-1
Iso_8859_1,
/// ISO-8859-2
Iso_8859_2,
/// ISO-8859-3
Iso_8859_3,
/// ISO-8859-4
Iso_8859_4,
/// ISO-8859-5
Iso_8859_5,
/// ISO-8859-6
Iso_8859_6,
/// ISO-8859-7
Iso_8859_7,
/// ISO-8859-8
Iso_8859_8,
/// ISO-8859-9
Iso_8859_9,
/// ISO-8859-10
Iso_8859_10,
/// Shift_JIS
Shift_Jis,
/// EUC-JP
Euc_Jp,
/// ISO-2022-KR
Iso_2022_Kr,
/// EUC-KR
Euc_Kr,
/// ISO-2022-JP
Iso_2022_Jp,
/// ISO-2022-JP-2
Iso_2022_Jp_2,
/// ISO-8859-6-E
Iso_8859_6_E,
/// ISO-8859-6-I
Iso_8859_6_I,
/// ISO-8859-8-E
Iso_8859_8_E,
/// ISO-8859-8-I
Iso_8859_8_I,
/// GB2312
Gb2312,
/// Big5
Big5,
/// KOI8-R
Koi8_R,
_Unknown,
}
impl Charset {
fn name(&self) -> &'static str {
match self.0 {
Charset_::Us_Ascii => "US-ASCII",
Charset_::Iso_8859_1 => "ISO-8859-1",
Charset_::Iso_8859_2 => "ISO-8859-2",
Charset_::Iso_8859_3 => "ISO-8859-3",
Charset_::Iso_8859_4 => "ISO-8859-4",
Charset_::Iso_8859_5 => "ISO-8859-5",
Charset_::Iso_8859_6 => "ISO-8859-6",
Charset_::Iso_8859_7 => "ISO-8859-7",
Charset_::Iso_8859_8 => "ISO-8859-8",
Charset_::Iso_8859_9 => "ISO-8859-9",
Charset_::Iso_8859_10 => "ISO-8859-10",
Charset_::Shift_Jis => "Shift-JIS",
Charset_::Euc_Jp => "EUC-JP",
Charset_::Iso_2022_Kr => "ISO-2022-KR",
Charset_::Euc_Kr => "EUC-KR",
Charset_::Iso_2022_Jp => "ISO-2022-JP",
Charset_::Iso_2022_Jp_2 => "ISO-2022-JP-2",
Charset_::Iso_8859_6_E => "ISO-8859-6-E",
Charset_::Iso_8859_6_I => "ISO-8859-6-I",
Charset_::Iso_8859_8_E => "ISO-8859-8-E",
Charset_::Iso_8859_8_I => "ISO-8859-8-I",
Charset_::Gb2312 => "GB2312",
Charset_::Big5 => "5",
Charset_::Koi8_R => "KOI8-R",
Charset_::_Unknown => unreachable!("Charset::_Unknown"),
}
}
}
impl fmt::Display for Charset {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str(self.name())
}
}
#[derive(Debug)]
pub struct CharsetFromStrError(());
impl FromStr for Charset {
type Err = CharsetFromStrError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
Ok(Charset(match s.to_ascii_uppercase().as_ref() {
"US-ASCII" => Charset_::Us_Ascii,
"ISO-8859-1" => Charset_::Iso_8859_1,
"ISO-8859-2" => Charset_::Iso_8859_2,
"ISO-8859-3" => Charset_::Iso_8859_3,
"ISO-8859-4" => Charset_::Iso_8859_4,
"ISO-8859-5" => Charset_::Iso_8859_5,
"ISO-8859-6" => Charset_::Iso_8859_6,
"ISO-8859-7" => Charset_::Iso_8859_7,
"ISO-8859-8" => Charset_::Iso_8859_8,
"ISO-8859-9" => Charset_::Iso_8859_9,
"ISO-8859-10" => Charset_::Iso_8859_10,
"SHIFT-JIS" => Charset_::Shift_Jis,
"EUC-JP" => Charset_::Euc_Jp,
"ISO-2022-KR" => Charset_::Iso_2022_Kr,
"EUC-KR" => Charset_::Euc_Kr,
"ISO-2022-JP" => Charset_::Iso_2022_Jp,
"ISO-2022-JP-2" => Charset_::Iso_2022_Jp_2,
"ISO-8859-6-E" => Charset_::Iso_8859_6_E,
"ISO-8859-6-I" => Charset_::Iso_8859_6_I,
"ISO-8859-8-E" => Charset_::Iso_8859_8_E,
"ISO-8859-8-I" => Charset_::Iso_8859_8_I,
"GB2312" => Charset_::Gb2312,
"5" => Charset_::Big5,
"KOI8-R" => Charset_::Koi8_R,
_unknown => return Err(CharsetFromStrError(())),
}))
}
}
#[test]
fn test_parse() {
assert_eq!(Charset::US_ASCII,"us-ascii".parse().unwrap());
assert_eq!(Charset::US_ASCII,"US-Ascii".parse().unwrap());
assert_eq!(Charset::US_ASCII,"US-ASCII".parse().unwrap());
assert_eq!(Charset::SHIFT_JIS,"Shift-JIS".parse().unwrap());
assert!("abcd".parse(::<Charset>().is_err());
}
#[test]
fn test_display() {
assert_eq!("US-ASCII", format!("{}", Charset::US_ASCII));
}
|
