windy 0.3.1

A Windows strings library that supports AString (ANSI string) and WString (Unicode string)
Documentation 
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
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293

// Copyright takubokudori.
// This source code is licensed under the MIT or Apache-2.0 license.
#[cfg(test)]
#[cfg(feature = "std")]
pub mod tests {
    use std::convert::TryFrom;
    use windy::*;

    const ERROR_NO_UNICODE_TRANSLATION: u32 = 1113;
    macro_rules! wn {
        ($x:expr) => {
            unsafe { WString::new_unchecked($x) }
        };
    }
    macro_rules! wnc {
        ($x:expr) => {
            unsafe { WString::new_c_unchecked($x) }
        };
    }
    macro_rules! an {
        ($x:expr) => {
            unsafe { AString::new_unchecked($x) }
        };
    }

    #[test]
    fn test_wstring() {
        let x = wn!(vec![]); // empty vec
        assert_eq!(&[0x00], x.as_bytes_with_nul());
        let x = wn!(vec![0x00]); // empty vec
        assert_eq!(&[0x00], x.as_bytes_with_nul());
        assert_eq!(x.len(), 2);
        let x = wn!(vec![0x74, 0x65, 0x73, 0x74]); // test
        assert_eq!(&[0x74, 0x65, 0x73, 0x74, 0x00], x.as_bytes_with_nul());
        assert_eq!(x.len(), 10);
        let x = wn!(vec![0x74, 0x65, 0x73, 0x74, 0x00]); // test\0
        assert_eq!(&[0x74, 0x65, 0x73, 0x74, 0x00], x.as_bytes_with_nul());
        let x = wn!(vec![0x74, 0x65, 0x00, 0x73, 0x74]); // te\0st
        assert_eq!(&[0x74, 0x65, 0x00], x.as_bytes_with_nul());
        let x = wnc!(vec![0x74, 0x00, 0x65, 0x00, 0x73, 0x00, 0x74, 0x00]); // test
        assert_eq!(&[0x74, 0x65, 0x73, 0x74, 0x00], x.as_bytes_with_nul());
        let x =
            wnc!(vec![0x74, 0x00, 0x65, 0x00, 0x73, 0x00, 0x74, 0x00, 0x00]); // test\0 (odd)
        assert_eq!(&[0x74, 0x65, 0x73, 0x74, 0x00], x.as_bytes_with_nul());
        let x = wnc!(vec![
            0x74, 0x00, 0x65, 0x00, 0x73, 0x00, 0x74, 0x00, 0x00, 0x00
        ]); // test\0\0 (even)
        assert_eq!(&[0x74, 0x65, 0x73, 0x74, 0x00], x.as_bytes_with_nul());
        assert_eq!(x.as_bytes_with_nul(), x.as_c_str().to_bytes_with_nul());
        assert_eq!(x, WString::try_from("test").unwrap());
        assert_ne!(Ok(x), WString::try_from("Test"));
        let x = &mut [0x0074, 0x0065, 0x0073, 0x0074, 0x0000];
        unsafe {
            let s = WStr::from_raw(x.as_mut_ptr());
            assert_eq!(s.len(), 10);
            assert_eq!("test", s.to_string_lossy());
            let s = WStr::from_raw_s(x.as_mut_ptr(), 3);
            assert_eq!(s.len(), 8);
            assert_eq!("tes", s.to_string_lossy());
            let s = WStr::from_raw_s(x.as_mut_ptr(), 4);
            assert_eq!("test", s.to_string_lossy());
            let s = WStr::from_raw_s(x.as_mut_ptr(), 5);
            assert_eq!("test", s.to_string_lossy());
            let s = WStr::from_raw_s(x.as_mut_ptr(), 6);
            assert_eq!("test", s.to_string_lossy());
            let s = WString::clone_from_raw(x.as_mut_ptr());
            assert_eq!("test", s.to_string_lossy());
            let s = WString::clone_from_raw_s(x.as_mut_ptr(), 3);
            assert_eq!("tes", s.to_string_lossy());
            let s = WString::clone_from_raw_s(x.as_mut_ptr(), 4);
            assert_eq!("test", s.to_string_lossy());
            let s = WString::clone_from_raw_s(x.as_mut_ptr(), 5);
            assert_eq!("test", s.to_string_lossy());
            let s = WString::clone_from_raw_s(x.as_mut_ptr(), 6);
            assert_eq!("test", s.to_string_lossy());
        }
    }

    #[test]
    fn test_astring() {
        let x = an!(vec![]); // empty vec
        assert_eq!(&[0x00], x.as_bytes_with_nul());
        assert_eq!(x.len(), 1);
        let x = an!(vec![0x74, 0x65, 0x73, 0x74]); // test
        assert_eq!(&[0x74, 0x65, 0x73, 0x74, 0x00], x.as_bytes_with_nul());
        assert_eq!(x.len(), 5);
        let x = an!(vec![0x74, 0x65, 0x73, 0x74, 0x00]); // test\0
        assert_eq!(&[0x74, 0x65, 0x73, 0x74, 0x00], x.as_bytes_with_nul());
        let x = an!(vec![0x74, 0x65, 0x00, 0x73, 0x74, 0x00]); // te\0st\0
        assert_eq!(&[0x74, 0x65, 0x00], x.as_bytes_with_nul());
        assert_eq!(x.as_bytes_with_nul(), x.as_c_str().to_bytes_with_nul());
        assert_eq!(x, AString::try_from("te").unwrap());
        assert_ne!(Ok(x), AString::try_from("Te"));
        let x = &mut [0x74, 0x65, 0x73, 0x74, 0x00];
        unsafe {
            let s = AStr::from_raw(x.as_mut_ptr());
            assert_eq!("test", s.to_string_lossy());
            assert_eq!(s.len(), 5);
            let s = AStr::from_raw_s(x.as_mut_ptr(), 3);
            assert_eq!("tes", s.to_string_lossy());
            assert_eq!(s.len(), 4);
            let s = AStr::from_raw_s(x.as_mut_ptr(), 4);
            assert_eq!("test", s.to_string_lossy());
            let s = AStr::from_raw_s(x.as_mut_ptr(), 5);
            assert_eq!("test", s.to_string_lossy());
            let s = AStr::from_raw_s(x.as_mut_ptr(), 6);
            assert_eq!("test", s.to_string_lossy());
            let s = AString::clone_from_raw(x.as_mut_ptr());
            assert_eq!("test", s.to_string_lossy());
            let s = AString::clone_from_raw_s(x.as_mut_ptr(), 3);
            assert_eq!("tes", s.to_string_lossy());
            let s = AString::clone_from_raw_s(x.as_mut_ptr(), 4);
            assert_eq!("test", s.to_string_lossy());
            let s = AString::clone_from_raw_s(x.as_mut_ptr(), 5);
            assert_eq!("test", s.to_string_lossy());
            let s = AString::clone_from_raw_s(x.as_mut_ptr(), 6);
            assert_eq!("test", s.to_string_lossy());
        }
    }

    #[test]
    fn test_string_conversion() {
        // UTF-8 -> ANSI
        let _ = AString::from_str_lossy("スペシャル").to_string_lossy();
        let sa = AString::try_from("test").unwrap();
        assert_eq!("test", sa.try_to_string().unwrap()); // ANSI -> UTF-8
        assert_eq!("test", sa.to_string_lossy()); // ANSI -> UTF-8 lossy
        // UTF-8 -> Unicode
        let sw = WString::try_from("test").unwrap();
        assert_eq!("test", sw.try_to_string().unwrap()); // Unicode -> UTF-8
        assert_eq!("test", sw.to_string_lossy()); // Unicode -> UTF-8 lossy
        // Unicode -> ANSI
        let sa = sw.to_astring().unwrap();
        assert_eq!("test", sa.try_to_string().unwrap());
        assert_eq!("test", sa.to_string_lossy());
        // ANSI -> Unicode
        let sw = sa.to_wstring().unwrap();
        assert_eq!("test", sw.try_to_string().unwrap()); // ANSI -> UTF-8
        assert_eq!("test", sw.to_string_lossy()); // ANSI -> UTF-8 lossy
        // ANSI -> Unicode lossy
        let sw = sa.to_wstring_lossy();
        assert_eq!("test", sw.try_to_string().unwrap()); // ANSI -> UTF-8
        assert_eq!("test", sw.to_string_lossy()); // ANSI -> UTF-8 lossy
    }

    #[test]
    fn test_string_concatenation() {
        let x = AString::from_str("hello ").unwrap();
        let y = AString::from_str("world").unwrap();
        let xy = x + &y;
        assert_eq!("hello world", xy.try_to_string().unwrap());
        assert_eq!("hello world", xy.to_string_lossy());
        let x = WString::from_str("ハロー🍣").unwrap();
        let y = WString::from_str("world!☆").unwrap();
        let xy = x + &y;
        assert_eq!("ハロー🍣world!☆", xy.try_to_string().unwrap());
        assert_eq!("ハロー🍣world!☆", xy.to_string_lossy());
    }

    #[test]
    fn test_string_conversion_invalid() {
        // UTF-8 -> ANSI (Invalid)
        assert_eq!(
            Err(conv_err!(@ansi ERROR_NO_UNICODE_TRANSLATION)),
            AString::try_from("スペシャルtest🍣")
        );
        // UTF-8 -> Unicode
        let sw = WString::try_from("スペシャルtest🍣").unwrap();
        assert_eq!("スペシャルtest🍣", sw.try_to_string().unwrap()); // Unicode -> UTF-8
        assert_eq!("スペシャルtest🍣", sw.to_string_lossy()); // Unicode -> UTF-8 lossy
        // Unicode -> ANSI (Invalid)
        assert_eq!(
            Err(conv_err!(@ansi ERROR_NO_UNICODE_TRANSLATION)),
            sw.to_astring()
        );
        let _ = sw.to_astring_lossy().to_string_lossy();
    }

    #[test]
    fn test_empty_string() {
        assert_eq!(
            "",
            &WString::try_from("").unwrap().try_to_string().unwrap()
        );
        assert_eq!("", &WString::try_from("").unwrap().to_string_lossy());
        assert_eq!("", &WString::from_str_lossy("").try_to_string().unwrap());
        assert_eq!("", &WString::from_str_lossy("").to_string_lossy());
        assert_eq!(
            "",
            &AString::try_from("").unwrap().try_to_string().unwrap()
        );
        assert_eq!("", &AString::try_from("").unwrap().to_string_lossy());
        assert_eq!("", &AString::from_str_lossy("").try_to_string().unwrap());
        assert_eq!("", &AString::from_str_lossy("").to_string_lossy());

        assert_eq!(
            "",
            &WString::from_str_lossy("")
                .to_astring()
                .unwrap()
                .to_string_lossy()
        );
        assert_eq!(
            "",
            &WString::from_str_lossy("")
                .to_astring_lossy()
                .to_string_lossy()
        );
        assert_eq!(
            "",
            &AString::from_str_lossy("")
                .to_wstring()
                .unwrap()
                .try_to_string()
                .unwrap()
        );
        assert_eq!(
            "",
            &AString::from_str_lossy("")
                .to_wstring_lossy()
                .try_to_string()
                .unwrap()
        );
    }
}

/// Tests std.
#[cfg(test)]
pub mod tests2 {
    use windy::*;

    #[test]
    fn test_wstr() {
        let x = &mut [0x0074, 0x0065, 0x0073, 0x0074, 0x0000];
        unsafe {
            let s = WStr::from_raw(x.as_mut_ptr());
            assert_eq!(x, s.to_bytes_with_nul());
            let s = WStr::from_raw_s(x.as_mut_ptr(), 3);
            assert_eq!(&x[..4], s.to_bytes_with_nul());
            let s = WStr::from_raw_s(x.as_mut_ptr(), 4);
            assert_eq!(x, s.to_bytes_with_nul());
            let s = WStr::from_raw_s(x.as_mut_ptr(), 5);
            assert_eq!(x, s.to_bytes_with_nul());
            let s = WStr::from_raw_s(x.as_mut_ptr(), 6);
            assert_eq!(x, s.to_bytes_with_nul());
        }
    }

    #[test]
    fn test_astr() {
        let x = &mut [0x74, 0x65, 0x73, 0x74, 0x00];
        unsafe {
            let s = AStr::from_raw(x.as_mut_ptr());
            assert_eq!(x, s.to_bytes_with_nul());
            let s = AStr::from_raw_s(x.as_mut_ptr(), 3);
            assert_eq!(&x[..4], s.to_bytes_with_nul());
            let s = AStr::from_raw_s(x.as_mut_ptr(), 4);
            assert_eq!(x, s.to_bytes_with_nul());
            let s = AStr::from_raw_s(x.as_mut_ptr(), 5);
            assert_eq!(x, s.to_bytes_with_nul());
            let s = AStr::from_raw_s(x.as_mut_ptr(), 6);
            assert_eq!(x, s.to_bytes_with_nul());
        }
    }

    #[test]
    fn test_ansi_string() {
        let x = &mut [0x74, 0x65, 0x73, 0x74, 0x00];
        unsafe {
            let s = AStr::from_raw(x.as_mut_ptr());
            assert_eq!(x, s.to_bytes_with_nul());
            let a = AnsiString::new(s);
            assert_eq!(x, a.to_bytes_with_nul());
            assert_eq!(s.as_ptr(), a.as_raw().Buffer);
            assert_eq!(4, a.as_raw().Length);
            assert_eq!(5, a.as_raw().MaximumLength);
        }
    }

    #[test]
    fn test_unicode_string() {
        let x = &mut [0x0074, 0x0065, 0x0073, 0x0074, 0x0000];
        unsafe {
            let s = WStr::from_raw(x.as_mut_ptr());
            assert_eq!(x, s.to_bytes_with_nul());
            let a = UnicodeString::new(s);
            assert_eq!(x, a.to_bytes_with_nul());
            assert_eq!(s.as_ptr(), a.as_raw().Buffer);
            assert_eq!(8, a.as_raw().Length);
            assert_eq!(10, a.as_raw().MaximumLength);
        }
    }
}