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1 | // Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT |
2 | // file at the top-level directory of this distribution and at | |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
1a4d82fc | 10 | |
54a0048b | 11 | //! Operations on ASCII strings and characters. |
1a4d82fc | 12 | |
85aaf69f | 13 | #![stable(feature = "rust1", since = "1.0.0")] |
1a4d82fc | 14 | |
32a655c1 | 15 | use fmt; |
85aaf69f | 16 | use mem; |
e9174d1e | 17 | use ops::Range; |
9e0c209e | 18 | use iter::FusedIterator; |
1a4d82fc | 19 | |
c34b1796 | 20 | /// Extension methods for ASCII-subset only operations on string slices. |
7453a54e SL |
21 | /// |
22 | /// Be aware that operations on seemingly non-ASCII characters can sometimes | |
23 | /// have unexpected results. Consider this example: | |
24 | /// | |
25 | /// ``` | |
26 | /// use std::ascii::AsciiExt; | |
27 | /// | |
28 | /// assert_eq!("café".to_ascii_uppercase(), "CAFÉ"); | |
29 | /// assert_eq!("café".to_ascii_uppercase(), "CAFé"); | |
30 | /// ``` | |
31 | /// | |
32 | /// In the first example, the lowercased string is represented `"cafe\u{301}"` | |
33 | /// (the last character is an acute accent [combining character]). Unlike the | |
34 | /// other characters in the string, the combining character will not get mapped | |
35 | /// to an uppercase variant, resulting in `"CAFE\u{301}"`. In the second | |
36 | /// example, the lowercased string is represented `"caf\u{e9}"` (the last | |
37 | /// character is a single Unicode character representing an 'e' with an acute | |
38 | /// accent). Since the last character is defined outside the scope of ASCII, | |
39 | /// it will not get mapped to an uppercase variant, resulting in `"CAF\u{e9}"`. | |
40 | /// | |
41 | /// [combining character]: https://en.wikipedia.org/wiki/Combining_character | |
85aaf69f SL |
42 | #[stable(feature = "rust1", since = "1.0.0")] |
43 | pub trait AsciiExt { | |
c34b1796 | 44 | /// Container type for copied ASCII characters. |
85aaf69f SL |
45 | #[stable(feature = "rust1", since = "1.0.0")] |
46 | type Owned; | |
47 | ||
7453a54e | 48 | /// Checks if the value is within the ASCII range. |
c34b1796 AL |
49 | /// |
50 | /// # Examples | |
51 | /// | |
52 | /// ``` | |
53 | /// use std::ascii::AsciiExt; | |
54 | /// | |
55 | /// let ascii = 'a'; | |
56 | /// let utf8 = '❤'; | |
57 | /// | |
7453a54e SL |
58 | /// assert!(ascii.is_ascii()); |
59 | /// assert!(!utf8.is_ascii()); | |
c34b1796 | 60 | /// ``` |
85aaf69f | 61 | #[stable(feature = "rust1", since = "1.0.0")] |
1a4d82fc JJ |
62 | fn is_ascii(&self) -> bool; |
63 | ||
c34b1796 AL |
64 | /// Makes a copy of the string in ASCII upper case. |
65 | /// | |
1a4d82fc JJ |
66 | /// ASCII letters 'a' to 'z' are mapped to 'A' to 'Z', |
67 | /// but non-ASCII letters are unchanged. | |
c34b1796 | 68 | /// |
32a655c1 SL |
69 | /// To uppercase the string in-place, use [`make_ascii_uppercase`]. |
70 | /// | |
71 | /// To uppercase ASCII characters in addition to non-ASCII characters, use | |
72 | /// [`str::to_uppercase`]. | |
73 | /// | |
c34b1796 AL |
74 | /// # Examples |
75 | /// | |
76 | /// ``` | |
77 | /// use std::ascii::AsciiExt; | |
78 | /// | |
79 | /// let ascii = 'a'; | |
80 | /// let utf8 = '❤'; | |
81 | /// | |
82 | /// assert_eq!('A', ascii.to_ascii_uppercase()); | |
83 | /// assert_eq!('❤', utf8.to_ascii_uppercase()); | |
84 | /// ``` | |
32a655c1 SL |
85 | /// |
86 | /// [`make_ascii_uppercase`]: #tymethod.make_ascii_uppercase | |
87 | /// [`str::to_uppercase`]: ../primitive.str.html#method.to_uppercase | |
85aaf69f SL |
88 | #[stable(feature = "rust1", since = "1.0.0")] |
89 | fn to_ascii_uppercase(&self) -> Self::Owned; | |
1a4d82fc | 90 | |
c34b1796 AL |
91 | /// Makes a copy of the string in ASCII lower case. |
92 | /// | |
1a4d82fc JJ |
93 | /// ASCII letters 'A' to 'Z' are mapped to 'a' to 'z', |
94 | /// but non-ASCII letters are unchanged. | |
c34b1796 | 95 | /// |
32a655c1 SL |
96 | /// To lowercase the string in-place, use [`make_ascii_lowercase`]. |
97 | /// | |
98 | /// To lowercase ASCII characters in addition to non-ASCII characters, use | |
99 | /// [`str::to_lowercase`]. | |
100 | /// | |
c34b1796 AL |
101 | /// # Examples |
102 | /// | |
103 | /// ``` | |
104 | /// use std::ascii::AsciiExt; | |
105 | /// | |
106 | /// let ascii = 'A'; | |
107 | /// let utf8 = '❤'; | |
108 | /// | |
109 | /// assert_eq!('a', ascii.to_ascii_lowercase()); | |
110 | /// assert_eq!('❤', utf8.to_ascii_lowercase()); | |
111 | /// ``` | |
32a655c1 SL |
112 | /// |
113 | /// [`make_ascii_lowercase`]: #tymethod.make_ascii_lowercase | |
114 | /// [`str::to_lowercase`]: ../primitive.str.html#method.to_lowercase | |
85aaf69f SL |
115 | #[stable(feature = "rust1", since = "1.0.0")] |
116 | fn to_ascii_lowercase(&self) -> Self::Owned; | |
1a4d82fc | 117 | |
9346a6ac | 118 | /// Checks that two strings are an ASCII case-insensitive match. |
c34b1796 | 119 | /// |
1a4d82fc JJ |
120 | /// Same as `to_ascii_lowercase(a) == to_ascii_lowercase(b)`, |
121 | /// but without allocating and copying temporary strings. | |
c34b1796 AL |
122 | /// |
123 | /// # Examples | |
124 | /// | |
125 | /// ``` | |
126 | /// use std::ascii::AsciiExt; | |
127 | /// | |
128 | /// let ascii1 = 'A'; | |
129 | /// let ascii2 = 'a'; | |
130 | /// let ascii3 = 'A'; | |
131 | /// let ascii4 = 'z'; | |
132 | /// | |
7453a54e SL |
133 | /// assert!(ascii1.eq_ignore_ascii_case(&ascii2)); |
134 | /// assert!(ascii1.eq_ignore_ascii_case(&ascii3)); | |
135 | /// assert!(!ascii1.eq_ignore_ascii_case(&ascii4)); | |
c34b1796 | 136 | /// ``` |
85aaf69f | 137 | #[stable(feature = "rust1", since = "1.0.0")] |
1a4d82fc | 138 | fn eq_ignore_ascii_case(&self, other: &Self) -> bool; |
85aaf69f | 139 | |
9346a6ac | 140 | /// Converts this type to its ASCII upper case equivalent in-place. |
85aaf69f | 141 | /// |
32a655c1 SL |
142 | /// ASCII letters 'a' to 'z' are mapped to 'A' to 'Z', |
143 | /// but non-ASCII letters are unchanged. | |
144 | /// | |
145 | /// To return a new uppercased string without modifying the existing one, use | |
146 | /// [`to_ascii_uppercase`]. | |
c34b1796 AL |
147 | /// |
148 | /// # Examples | |
149 | /// | |
150 | /// ``` | |
c34b1796 AL |
151 | /// use std::ascii::AsciiExt; |
152 | /// | |
153 | /// let mut ascii = 'a'; | |
154 | /// | |
155 | /// ascii.make_ascii_uppercase(); | |
156 | /// | |
157 | /// assert_eq!('A', ascii); | |
158 | /// ``` | |
32a655c1 SL |
159 | /// |
160 | /// [`to_ascii_uppercase`]: #tymethod.to_ascii_uppercase | |
54a0048b | 161 | #[stable(feature = "ascii", since = "1.9.0")] |
85aaf69f SL |
162 | fn make_ascii_uppercase(&mut self); |
163 | ||
9346a6ac | 164 | /// Converts this type to its ASCII lower case equivalent in-place. |
85aaf69f | 165 | /// |
32a655c1 SL |
166 | /// ASCII letters 'A' to 'Z' are mapped to 'a' to 'z', |
167 | /// but non-ASCII letters are unchanged. | |
168 | /// | |
169 | /// To return a new lowercased string without modifying the existing one, use | |
170 | /// [`to_ascii_lowercase`]. | |
c34b1796 AL |
171 | /// |
172 | /// # Examples | |
173 | /// | |
174 | /// ``` | |
c34b1796 AL |
175 | /// use std::ascii::AsciiExt; |
176 | /// | |
177 | /// let mut ascii = 'A'; | |
178 | /// | |
179 | /// ascii.make_ascii_lowercase(); | |
180 | /// | |
181 | /// assert_eq!('a', ascii); | |
182 | /// ``` | |
32a655c1 SL |
183 | /// |
184 | /// [`to_ascii_lowercase`]: #tymethod.to_ascii_lowercase | |
54a0048b | 185 | #[stable(feature = "ascii", since = "1.9.0")] |
85aaf69f | 186 | fn make_ascii_lowercase(&mut self); |
8bb4bdeb XL |
187 | |
188 | /// Checks if the value is an ASCII alphabetic character: | |
189 | /// U+0041 'A' ... U+005A 'Z' or U+0061 'a' ... U+007A 'z'. | |
190 | /// For strings, true if all characters in the string are | |
191 | /// ASCII alphabetic. | |
192 | /// | |
193 | /// # Examples | |
194 | /// | |
195 | /// ``` | |
196 | /// #![feature(ascii_ctype)] | |
197 | /// # #![allow(non_snake_case)] | |
198 | /// use std::ascii::AsciiExt; | |
199 | /// let A = 'A'; | |
200 | /// let G = 'G'; | |
201 | /// let a = 'a'; | |
202 | /// let g = 'g'; | |
203 | /// let zero = '0'; | |
204 | /// let percent = '%'; | |
205 | /// let space = ' '; | |
206 | /// let lf = '\n'; | |
207 | /// let esc = '\u{001b}'; | |
208 | /// | |
209 | /// assert!(A.is_ascii_alphabetic()); | |
210 | /// assert!(G.is_ascii_alphabetic()); | |
211 | /// assert!(a.is_ascii_alphabetic()); | |
212 | /// assert!(g.is_ascii_alphabetic()); | |
213 | /// assert!(!zero.is_ascii_alphabetic()); | |
214 | /// assert!(!percent.is_ascii_alphabetic()); | |
215 | /// assert!(!space.is_ascii_alphabetic()); | |
216 | /// assert!(!lf.is_ascii_alphabetic()); | |
217 | /// assert!(!esc.is_ascii_alphabetic()); | |
218 | /// ``` | |
219 | #[unstable(feature = "ascii_ctype", issue = "39658")] | |
220 | fn is_ascii_alphabetic(&self) -> bool { unimplemented!(); } | |
221 | ||
222 | /// Checks if the value is an ASCII uppercase character: | |
223 | /// U+0041 'A' ... U+005A 'Z'. | |
224 | /// For strings, true if all characters in the string are | |
225 | /// ASCII uppercase. | |
226 | /// | |
227 | /// # Examples | |
228 | /// | |
229 | /// ``` | |
230 | /// #![feature(ascii_ctype)] | |
231 | /// # #![allow(non_snake_case)] | |
232 | /// use std::ascii::AsciiExt; | |
233 | /// let A = 'A'; | |
234 | /// let G = 'G'; | |
235 | /// let a = 'a'; | |
236 | /// let g = 'g'; | |
237 | /// let zero = '0'; | |
238 | /// let percent = '%'; | |
239 | /// let space = ' '; | |
240 | /// let lf = '\n'; | |
241 | /// let esc = '\u{001b}'; | |
242 | /// | |
243 | /// assert!(A.is_ascii_uppercase()); | |
244 | /// assert!(G.is_ascii_uppercase()); | |
245 | /// assert!(!a.is_ascii_uppercase()); | |
246 | /// assert!(!g.is_ascii_uppercase()); | |
247 | /// assert!(!zero.is_ascii_uppercase()); | |
248 | /// assert!(!percent.is_ascii_uppercase()); | |
249 | /// assert!(!space.is_ascii_uppercase()); | |
250 | /// assert!(!lf.is_ascii_uppercase()); | |
251 | /// assert!(!esc.is_ascii_uppercase()); | |
252 | /// ``` | |
253 | #[unstable(feature = "ascii_ctype", issue = "39658")] | |
254 | fn is_ascii_uppercase(&self) -> bool { unimplemented!(); } | |
255 | ||
256 | /// Checks if the value is an ASCII lowercase character: | |
257 | /// U+0061 'a' ... U+007A 'z'. | |
258 | /// For strings, true if all characters in the string are | |
259 | /// ASCII lowercase. | |
260 | /// | |
261 | /// # Examples | |
262 | /// | |
263 | /// ``` | |
264 | /// #![feature(ascii_ctype)] | |
265 | /// # #![allow(non_snake_case)] | |
266 | /// use std::ascii::AsciiExt; | |
267 | /// let A = 'A'; | |
268 | /// let G = 'G'; | |
269 | /// let a = 'a'; | |
270 | /// let g = 'g'; | |
271 | /// let zero = '0'; | |
272 | /// let percent = '%'; | |
273 | /// let space = ' '; | |
274 | /// let lf = '\n'; | |
275 | /// let esc = '\u{001b}'; | |
276 | /// | |
277 | /// assert!(!A.is_ascii_lowercase()); | |
278 | /// assert!(!G.is_ascii_lowercase()); | |
279 | /// assert!(a.is_ascii_lowercase()); | |
280 | /// assert!(g.is_ascii_lowercase()); | |
281 | /// assert!(!zero.is_ascii_lowercase()); | |
282 | /// assert!(!percent.is_ascii_lowercase()); | |
283 | /// assert!(!space.is_ascii_lowercase()); | |
284 | /// assert!(!lf.is_ascii_lowercase()); | |
285 | /// assert!(!esc.is_ascii_lowercase()); | |
286 | /// ``` | |
287 | #[unstable(feature = "ascii_ctype", issue = "39658")] | |
288 | fn is_ascii_lowercase(&self) -> bool { unimplemented!(); } | |
289 | ||
290 | /// Checks if the value is an ASCII alphanumeric character: | |
291 | /// U+0041 'A' ... U+005A 'Z', U+0061 'a' ... U+007A 'z', or | |
292 | /// U+0030 '0' ... U+0039 '9'. | |
293 | /// For strings, true if all characters in the string are | |
294 | /// ASCII alphanumeric. | |
295 | /// | |
296 | /// # Examples | |
297 | /// | |
298 | /// ``` | |
299 | /// #![feature(ascii_ctype)] | |
300 | /// # #![allow(non_snake_case)] | |
301 | /// use std::ascii::AsciiExt; | |
302 | /// let A = 'A'; | |
303 | /// let G = 'G'; | |
304 | /// let a = 'a'; | |
305 | /// let g = 'g'; | |
306 | /// let zero = '0'; | |
307 | /// let percent = '%'; | |
308 | /// let space = ' '; | |
309 | /// let lf = '\n'; | |
310 | /// let esc = '\u{001b}'; | |
311 | /// | |
312 | /// assert!(A.is_ascii_alphanumeric()); | |
313 | /// assert!(G.is_ascii_alphanumeric()); | |
314 | /// assert!(a.is_ascii_alphanumeric()); | |
315 | /// assert!(g.is_ascii_alphanumeric()); | |
316 | /// assert!(zero.is_ascii_alphanumeric()); | |
317 | /// assert!(!percent.is_ascii_alphanumeric()); | |
318 | /// assert!(!space.is_ascii_alphanumeric()); | |
319 | /// assert!(!lf.is_ascii_alphanumeric()); | |
320 | /// assert!(!esc.is_ascii_alphanumeric()); | |
321 | /// ``` | |
322 | #[unstable(feature = "ascii_ctype", issue = "39658")] | |
323 | fn is_ascii_alphanumeric(&self) -> bool { unimplemented!(); } | |
324 | ||
325 | /// Checks if the value is an ASCII decimal digit: | |
326 | /// U+0030 '0' ... U+0039 '9'. | |
327 | /// For strings, true if all characters in the string are | |
328 | /// ASCII digits. | |
329 | /// | |
330 | /// # Examples | |
331 | /// | |
332 | /// ``` | |
333 | /// #![feature(ascii_ctype)] | |
334 | /// # #![allow(non_snake_case)] | |
335 | /// use std::ascii::AsciiExt; | |
336 | /// let A = 'A'; | |
337 | /// let G = 'G'; | |
338 | /// let a = 'a'; | |
339 | /// let g = 'g'; | |
340 | /// let zero = '0'; | |
341 | /// let percent = '%'; | |
342 | /// let space = ' '; | |
343 | /// let lf = '\n'; | |
344 | /// let esc = '\u{001b}'; | |
345 | /// | |
346 | /// assert!(!A.is_ascii_digit()); | |
347 | /// assert!(!G.is_ascii_digit()); | |
348 | /// assert!(!a.is_ascii_digit()); | |
349 | /// assert!(!g.is_ascii_digit()); | |
350 | /// assert!(zero.is_ascii_digit()); | |
351 | /// assert!(!percent.is_ascii_digit()); | |
352 | /// assert!(!space.is_ascii_digit()); | |
353 | /// assert!(!lf.is_ascii_digit()); | |
354 | /// assert!(!esc.is_ascii_digit()); | |
355 | /// ``` | |
356 | #[unstable(feature = "ascii_ctype", issue = "39658")] | |
357 | fn is_ascii_digit(&self) -> bool { unimplemented!(); } | |
358 | ||
359 | /// Checks if the value is an ASCII hexadecimal digit: | |
360 | /// U+0030 '0' ... U+0039 '9', U+0041 'A' ... U+0046 'F', or | |
361 | /// U+0061 'a' ... U+0066 'f'. | |
362 | /// For strings, true if all characters in the string are | |
363 | /// ASCII hex digits. | |
364 | /// | |
365 | /// # Examples | |
366 | /// | |
367 | /// ``` | |
368 | /// #![feature(ascii_ctype)] | |
369 | /// # #![allow(non_snake_case)] | |
370 | /// use std::ascii::AsciiExt; | |
371 | /// let A = 'A'; | |
372 | /// let G = 'G'; | |
373 | /// let a = 'a'; | |
374 | /// let g = 'g'; | |
375 | /// let zero = '0'; | |
376 | /// let percent = '%'; | |
377 | /// let space = ' '; | |
378 | /// let lf = '\n'; | |
379 | /// let esc = '\u{001b}'; | |
380 | /// | |
381 | /// assert!(A.is_ascii_hexdigit()); | |
382 | /// assert!(!G.is_ascii_hexdigit()); | |
383 | /// assert!(a.is_ascii_hexdigit()); | |
384 | /// assert!(!g.is_ascii_hexdigit()); | |
385 | /// assert!(zero.is_ascii_hexdigit()); | |
386 | /// assert!(!percent.is_ascii_hexdigit()); | |
387 | /// assert!(!space.is_ascii_hexdigit()); | |
388 | /// assert!(!lf.is_ascii_hexdigit()); | |
389 | /// assert!(!esc.is_ascii_hexdigit()); | |
390 | /// ``` | |
391 | #[unstable(feature = "ascii_ctype", issue = "39658")] | |
392 | fn is_ascii_hexdigit(&self) -> bool { unimplemented!(); } | |
393 | ||
394 | /// Checks if the value is an ASCII punctuation character: | |
395 | /// U+0021 ... U+002F `! " # $ % & ' ( ) * + , - . /` | |
396 | /// U+003A ... U+0040 `: ; < = > ? @` | |
397 | /// U+005B ... U+0060 `[ \\ ] ^ _ \`` | |
398 | /// U+007B ... U+007E `{ | } ~` | |
399 | /// For strings, true if all characters in the string are | |
400 | /// ASCII punctuation. | |
401 | /// | |
402 | /// # Examples | |
403 | /// | |
404 | /// ``` | |
405 | /// #![feature(ascii_ctype)] | |
406 | /// # #![allow(non_snake_case)] | |
407 | /// use std::ascii::AsciiExt; | |
408 | /// let A = 'A'; | |
409 | /// let G = 'G'; | |
410 | /// let a = 'a'; | |
411 | /// let g = 'g'; | |
412 | /// let zero = '0'; | |
413 | /// let percent = '%'; | |
414 | /// let space = ' '; | |
415 | /// let lf = '\n'; | |
416 | /// let esc = '\u{001b}'; | |
417 | /// | |
418 | /// assert!(!A.is_ascii_punctuation()); | |
419 | /// assert!(!G.is_ascii_punctuation()); | |
420 | /// assert!(!a.is_ascii_punctuation()); | |
421 | /// assert!(!g.is_ascii_punctuation()); | |
422 | /// assert!(!zero.is_ascii_punctuation()); | |
423 | /// assert!(percent.is_ascii_punctuation()); | |
424 | /// assert!(!space.is_ascii_punctuation()); | |
425 | /// assert!(!lf.is_ascii_punctuation()); | |
426 | /// assert!(!esc.is_ascii_punctuation()); | |
427 | /// ``` | |
428 | #[unstable(feature = "ascii_ctype", issue = "39658")] | |
429 | fn is_ascii_punctuation(&self) -> bool { unimplemented!(); } | |
430 | ||
431 | /// Checks if the value is an ASCII graphic character: | |
432 | /// U+0021 '@' ... U+007E '~'. | |
433 | /// For strings, true if all characters in the string are | |
434 | /// ASCII punctuation. | |
435 | /// | |
436 | /// # Examples | |
437 | /// | |
438 | /// ``` | |
439 | /// #![feature(ascii_ctype)] | |
440 | /// # #![allow(non_snake_case)] | |
441 | /// use std::ascii::AsciiExt; | |
442 | /// let A = 'A'; | |
443 | /// let G = 'G'; | |
444 | /// let a = 'a'; | |
445 | /// let g = 'g'; | |
446 | /// let zero = '0'; | |
447 | /// let percent = '%'; | |
448 | /// let space = ' '; | |
449 | /// let lf = '\n'; | |
450 | /// let esc = '\u{001b}'; | |
451 | /// | |
452 | /// assert!(A.is_ascii_graphic()); | |
453 | /// assert!(G.is_ascii_graphic()); | |
454 | /// assert!(a.is_ascii_graphic()); | |
455 | /// assert!(g.is_ascii_graphic()); | |
456 | /// assert!(zero.is_ascii_graphic()); | |
457 | /// assert!(percent.is_ascii_graphic()); | |
458 | /// assert!(!space.is_ascii_graphic()); | |
459 | /// assert!(!lf.is_ascii_graphic()); | |
460 | /// assert!(!esc.is_ascii_graphic()); | |
461 | /// ``` | |
462 | #[unstable(feature = "ascii_ctype", issue = "39658")] | |
463 | fn is_ascii_graphic(&self) -> bool { unimplemented!(); } | |
464 | ||
465 | /// Checks if the value is an ASCII whitespace character: | |
466 | /// U+0020 SPACE, U+0009 HORIZONTAL TAB, U+000A LINE FEED, | |
467 | /// U+000C FORM FEED, or U+000D CARRIAGE RETURN. | |
468 | /// For strings, true if all characters in the string are | |
469 | /// ASCII whitespace. | |
470 | /// | |
471 | /// Rust uses the WhatWG Infra Standard's [definition of ASCII | |
472 | /// whitespace][infra-aw]. There are several other definitions in | |
473 | /// wide use. For instance, [the POSIX locale][pct] includes | |
474 | /// U+000B VERTICAL TAB as well as all the above characters, | |
475 | /// but—from the very same specification—[the default rule for | |
476 | /// "field splitting" in the Bourne shell][bfs] considers *only* | |
477 | /// SPACE, HORIZONTAL TAB, and LINE FEED as whitespace. | |
478 | /// | |
479 | /// If you are writing a program that will process an existing | |
480 | /// file format, check what that format's definition of whitespace is | |
481 | /// before using this function. | |
482 | /// | |
483 | /// [infra-aw]: https://infra.spec.whatwg.org/#ascii-whitespace | |
484 | /// [pct]: http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap07.html#tag_07_03_01 | |
485 | /// [bfs]: http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_06_05 | |
486 | /// | |
487 | /// # Examples | |
488 | /// | |
489 | /// ``` | |
490 | /// #![feature(ascii_ctype)] | |
491 | /// # #![allow(non_snake_case)] | |
492 | /// use std::ascii::AsciiExt; | |
493 | /// let A = 'A'; | |
494 | /// let G = 'G'; | |
495 | /// let a = 'a'; | |
496 | /// let g = 'g'; | |
497 | /// let zero = '0'; | |
498 | /// let percent = '%'; | |
499 | /// let space = ' '; | |
500 | /// let lf = '\n'; | |
501 | /// let esc = '\u{001b}'; | |
502 | /// | |
503 | /// assert!(!A.is_ascii_whitespace()); | |
504 | /// assert!(!G.is_ascii_whitespace()); | |
505 | /// assert!(!a.is_ascii_whitespace()); | |
506 | /// assert!(!g.is_ascii_whitespace()); | |
507 | /// assert!(!zero.is_ascii_whitespace()); | |
508 | /// assert!(!percent.is_ascii_whitespace()); | |
509 | /// assert!(space.is_ascii_whitespace()); | |
510 | /// assert!(lf.is_ascii_whitespace()); | |
511 | /// assert!(!esc.is_ascii_whitespace()); | |
512 | /// ``` | |
513 | #[unstable(feature = "ascii_ctype", issue = "39658")] | |
514 | fn is_ascii_whitespace(&self) -> bool { unimplemented!(); } | |
515 | ||
516 | /// Checks if the value is an ASCII control character: | |
517 | /// U+0000 NUL ... U+001F UNIT SEPARATOR, or U+007F DELETE. | |
518 | /// Note that most ASCII whitespace characters are control | |
519 | /// characters, but SPACE is not. | |
520 | /// | |
521 | /// # Examples | |
522 | /// | |
523 | /// ``` | |
524 | /// #![feature(ascii_ctype)] | |
525 | /// # #![allow(non_snake_case)] | |
526 | /// use std::ascii::AsciiExt; | |
527 | /// let A = 'A'; | |
528 | /// let G = 'G'; | |
529 | /// let a = 'a'; | |
530 | /// let g = 'g'; | |
531 | /// let zero = '0'; | |
532 | /// let percent = '%'; | |
533 | /// let space = ' '; | |
534 | /// let lf = '\n'; | |
535 | /// let esc = '\u{001b}'; | |
536 | /// | |
537 | /// assert!(!A.is_ascii_control()); | |
538 | /// assert!(!G.is_ascii_control()); | |
539 | /// assert!(!a.is_ascii_control()); | |
540 | /// assert!(!g.is_ascii_control()); | |
541 | /// assert!(!zero.is_ascii_control()); | |
542 | /// assert!(!percent.is_ascii_control()); | |
543 | /// assert!(!space.is_ascii_control()); | |
544 | /// assert!(lf.is_ascii_control()); | |
545 | /// assert!(esc.is_ascii_control()); | |
546 | /// ``` | |
547 | #[unstable(feature = "ascii_ctype", issue = "39658")] | |
548 | fn is_ascii_control(&self) -> bool { unimplemented!(); } | |
1a4d82fc JJ |
549 | } |
550 | ||
85aaf69f SL |
551 | #[stable(feature = "rust1", since = "1.0.0")] |
552 | impl AsciiExt for str { | |
553 | type Owned = String; | |
554 | ||
1a4d82fc JJ |
555 | #[inline] |
556 | fn is_ascii(&self) -> bool { | |
557 | self.bytes().all(|b| b.is_ascii()) | |
558 | } | |
559 | ||
560 | #[inline] | |
561 | fn to_ascii_uppercase(&self) -> String { | |
e9174d1e SL |
562 | let mut bytes = self.as_bytes().to_vec(); |
563 | bytes.make_ascii_uppercase(); | |
564 | // make_ascii_uppercase() preserves the UTF-8 invariant. | |
565 | unsafe { String::from_utf8_unchecked(bytes) } | |
1a4d82fc JJ |
566 | } |
567 | ||
568 | #[inline] | |
569 | fn to_ascii_lowercase(&self) -> String { | |
e9174d1e SL |
570 | let mut bytes = self.as_bytes().to_vec(); |
571 | bytes.make_ascii_lowercase(); | |
572 | // make_ascii_uppercase() preserves the UTF-8 invariant. | |
573 | unsafe { String::from_utf8_unchecked(bytes) } | |
1a4d82fc JJ |
574 | } |
575 | ||
576 | #[inline] | |
577 | fn eq_ignore_ascii_case(&self, other: &str) -> bool { | |
578 | self.as_bytes().eq_ignore_ascii_case(other.as_bytes()) | |
579 | } | |
85aaf69f SL |
580 | |
581 | fn make_ascii_uppercase(&mut self) { | |
582 | let me: &mut [u8] = unsafe { mem::transmute(self) }; | |
583 | me.make_ascii_uppercase() | |
584 | } | |
585 | ||
586 | fn make_ascii_lowercase(&mut self) { | |
587 | let me: &mut [u8] = unsafe { mem::transmute(self) }; | |
588 | me.make_ascii_lowercase() | |
589 | } | |
8bb4bdeb XL |
590 | |
591 | #[inline] | |
592 | fn is_ascii_alphabetic(&self) -> bool { | |
593 | self.bytes().all(|b| b.is_ascii_alphabetic()) | |
594 | } | |
595 | ||
596 | #[inline] | |
597 | fn is_ascii_uppercase(&self) -> bool { | |
598 | self.bytes().all(|b| b.is_ascii_uppercase()) | |
599 | } | |
600 | ||
601 | #[inline] | |
602 | fn is_ascii_lowercase(&self) -> bool { | |
603 | self.bytes().all(|b| b.is_ascii_lowercase()) | |
604 | } | |
605 | ||
606 | #[inline] | |
607 | fn is_ascii_alphanumeric(&self) -> bool { | |
608 | self.bytes().all(|b| b.is_ascii_alphanumeric()) | |
609 | } | |
610 | ||
611 | #[inline] | |
612 | fn is_ascii_digit(&self) -> bool { | |
613 | self.bytes().all(|b| b.is_ascii_digit()) | |
614 | } | |
615 | ||
616 | #[inline] | |
617 | fn is_ascii_hexdigit(&self) -> bool { | |
618 | self.bytes().all(|b| b.is_ascii_hexdigit()) | |
619 | } | |
620 | ||
621 | #[inline] | |
622 | fn is_ascii_punctuation(&self) -> bool { | |
623 | self.bytes().all(|b| b.is_ascii_punctuation()) | |
624 | } | |
625 | ||
626 | #[inline] | |
627 | fn is_ascii_graphic(&self) -> bool { | |
628 | self.bytes().all(|b| b.is_ascii_graphic()) | |
629 | } | |
630 | ||
631 | #[inline] | |
632 | fn is_ascii_whitespace(&self) -> bool { | |
633 | self.bytes().all(|b| b.is_ascii_whitespace()) | |
634 | } | |
635 | ||
636 | #[inline] | |
637 | fn is_ascii_control(&self) -> bool { | |
638 | self.bytes().all(|b| b.is_ascii_control()) | |
639 | } | |
1a4d82fc JJ |
640 | } |
641 | ||
85aaf69f SL |
642 | #[stable(feature = "rust1", since = "1.0.0")] |
643 | impl AsciiExt for [u8] { | |
644 | type Owned = Vec<u8>; | |
1a4d82fc JJ |
645 | #[inline] |
646 | fn is_ascii(&self) -> bool { | |
647 | self.iter().all(|b| b.is_ascii()) | |
648 | } | |
649 | ||
650 | #[inline] | |
651 | fn to_ascii_uppercase(&self) -> Vec<u8> { | |
e9174d1e SL |
652 | let mut me = self.to_vec(); |
653 | me.make_ascii_uppercase(); | |
654 | return me | |
1a4d82fc JJ |
655 | } |
656 | ||
657 | #[inline] | |
658 | fn to_ascii_lowercase(&self) -> Vec<u8> { | |
e9174d1e SL |
659 | let mut me = self.to_vec(); |
660 | me.make_ascii_lowercase(); | |
661 | return me | |
1a4d82fc JJ |
662 | } |
663 | ||
664 | #[inline] | |
665 | fn eq_ignore_ascii_case(&self, other: &[u8]) -> bool { | |
666 | self.len() == other.len() && | |
62682a34 | 667 | self.iter().zip(other).all(|(a, b)| { |
1a4d82fc JJ |
668 | a.eq_ignore_ascii_case(b) |
669 | }) | |
670 | } | |
85aaf69f SL |
671 | |
672 | fn make_ascii_uppercase(&mut self) { | |
673 | for byte in self { | |
674 | byte.make_ascii_uppercase(); | |
675 | } | |
676 | } | |
677 | ||
678 | fn make_ascii_lowercase(&mut self) { | |
679 | for byte in self { | |
680 | byte.make_ascii_lowercase(); | |
681 | } | |
682 | } | |
8bb4bdeb XL |
683 | |
684 | #[inline] | |
685 | fn is_ascii_alphabetic(&self) -> bool { | |
686 | self.iter().all(|b| b.is_ascii_alphabetic()) | |
687 | } | |
688 | ||
689 | #[inline] | |
690 | fn is_ascii_uppercase(&self) -> bool { | |
691 | self.iter().all(|b| b.is_ascii_uppercase()) | |
692 | } | |
693 | ||
694 | #[inline] | |
695 | fn is_ascii_lowercase(&self) -> bool { | |
696 | self.iter().all(|b| b.is_ascii_lowercase()) | |
697 | } | |
698 | ||
699 | #[inline] | |
700 | fn is_ascii_alphanumeric(&self) -> bool { | |
701 | self.iter().all(|b| b.is_ascii_alphanumeric()) | |
702 | } | |
703 | ||
704 | #[inline] | |
705 | fn is_ascii_digit(&self) -> bool { | |
706 | self.iter().all(|b| b.is_ascii_digit()) | |
707 | } | |
708 | ||
709 | #[inline] | |
710 | fn is_ascii_hexdigit(&self) -> bool { | |
711 | self.iter().all(|b| b.is_ascii_hexdigit()) | |
712 | } | |
713 | ||
714 | #[inline] | |
715 | fn is_ascii_punctuation(&self) -> bool { | |
716 | self.iter().all(|b| b.is_ascii_punctuation()) | |
717 | } | |
718 | ||
719 | #[inline] | |
720 | fn is_ascii_graphic(&self) -> bool { | |
721 | self.iter().all(|b| b.is_ascii_graphic()) | |
722 | } | |
723 | ||
724 | #[inline] | |
725 | fn is_ascii_whitespace(&self) -> bool { | |
726 | self.iter().all(|b| b.is_ascii_whitespace()) | |
727 | } | |
728 | ||
729 | #[inline] | |
730 | fn is_ascii_control(&self) -> bool { | |
731 | self.iter().all(|b| b.is_ascii_control()) | |
732 | } | |
1a4d82fc JJ |
733 | } |
734 | ||
85aaf69f | 735 | #[stable(feature = "rust1", since = "1.0.0")] |
1a4d82fc | 736 | impl AsciiExt for u8 { |
85aaf69f | 737 | type Owned = u8; |
1a4d82fc | 738 | #[inline] |
c34b1796 | 739 | fn is_ascii(&self) -> bool { *self & 128 == 0 } |
1a4d82fc | 740 | #[inline] |
85aaf69f | 741 | fn to_ascii_uppercase(&self) -> u8 { ASCII_UPPERCASE_MAP[*self as usize] } |
1a4d82fc | 742 | #[inline] |
85aaf69f | 743 | fn to_ascii_lowercase(&self) -> u8 { ASCII_LOWERCASE_MAP[*self as usize] } |
1a4d82fc JJ |
744 | #[inline] |
745 | fn eq_ignore_ascii_case(&self, other: &u8) -> bool { | |
746 | self.to_ascii_lowercase() == other.to_ascii_lowercase() | |
747 | } | |
85aaf69f SL |
748 | #[inline] |
749 | fn make_ascii_uppercase(&mut self) { *self = self.to_ascii_uppercase(); } | |
750 | #[inline] | |
751 | fn make_ascii_lowercase(&mut self) { *self = self.to_ascii_lowercase(); } | |
8bb4bdeb XL |
752 | |
753 | #[inline] | |
754 | fn is_ascii_alphabetic(&self) -> bool { | |
755 | if *self >= 0x80 { return false; } | |
756 | match ASCII_CHARACTER_CLASS[*self as usize] { | |
757 | L|Lx|U|Ux => true, | |
758 | _ => false | |
759 | } | |
760 | } | |
761 | ||
762 | #[inline] | |
763 | fn is_ascii_uppercase(&self) -> bool { | |
764 | if *self >= 0x80 { return false } | |
765 | match ASCII_CHARACTER_CLASS[*self as usize] { | |
766 | U|Ux => true, | |
767 | _ => false | |
768 | } | |
769 | } | |
770 | ||
771 | #[inline] | |
772 | fn is_ascii_lowercase(&self) -> bool { | |
773 | if *self >= 0x80 { return false } | |
774 | match ASCII_CHARACTER_CLASS[*self as usize] { | |
775 | L|Lx => true, | |
776 | _ => false | |
777 | } | |
778 | } | |
779 | ||
780 | #[inline] | |
781 | fn is_ascii_alphanumeric(&self) -> bool { | |
782 | if *self >= 0x80 { return false } | |
783 | match ASCII_CHARACTER_CLASS[*self as usize] { | |
784 | D|L|Lx|U|Ux => true, | |
785 | _ => false | |
786 | } | |
787 | } | |
788 | ||
789 | #[inline] | |
790 | fn is_ascii_digit(&self) -> bool { | |
791 | if *self >= 0x80 { return false } | |
792 | match ASCII_CHARACTER_CLASS[*self as usize] { | |
793 | D => true, | |
794 | _ => false | |
795 | } | |
796 | } | |
797 | ||
798 | #[inline] | |
799 | fn is_ascii_hexdigit(&self) -> bool { | |
800 | if *self >= 0x80 { return false } | |
801 | match ASCII_CHARACTER_CLASS[*self as usize] { | |
802 | D|Lx|Ux => true, | |
803 | _ => false | |
804 | } | |
805 | } | |
806 | ||
807 | #[inline] | |
808 | fn is_ascii_punctuation(&self) -> bool { | |
809 | if *self >= 0x80 { return false } | |
810 | match ASCII_CHARACTER_CLASS[*self as usize] { | |
811 | P => true, | |
812 | _ => false | |
813 | } | |
814 | } | |
815 | ||
816 | #[inline] | |
817 | fn is_ascii_graphic(&self) -> bool { | |
818 | if *self >= 0x80 { return false; } | |
819 | match ASCII_CHARACTER_CLASS[*self as usize] { | |
820 | Ux|U|Lx|L|D|P => true, | |
821 | _ => false | |
822 | } | |
823 | } | |
824 | ||
825 | #[inline] | |
826 | fn is_ascii_whitespace(&self) -> bool { | |
827 | if *self >= 0x80 { return false; } | |
828 | match ASCII_CHARACTER_CLASS[*self as usize] { | |
829 | Cw|W => true, | |
830 | _ => false | |
831 | } | |
832 | } | |
833 | ||
834 | #[inline] | |
835 | fn is_ascii_control(&self) -> bool { | |
836 | if *self >= 0x80 { return false; } | |
837 | match ASCII_CHARACTER_CLASS[*self as usize] { | |
838 | C|Cw => true, | |
839 | _ => false | |
840 | } | |
841 | } | |
1a4d82fc JJ |
842 | } |
843 | ||
85aaf69f | 844 | #[stable(feature = "rust1", since = "1.0.0")] |
1a4d82fc | 845 | impl AsciiExt for char { |
85aaf69f | 846 | type Owned = char; |
1a4d82fc JJ |
847 | #[inline] |
848 | fn is_ascii(&self) -> bool { | |
849 | *self as u32 <= 0x7F | |
850 | } | |
851 | ||
852 | #[inline] | |
853 | fn to_ascii_uppercase(&self) -> char { | |
854 | if self.is_ascii() { | |
855 | (*self as u8).to_ascii_uppercase() as char | |
856 | } else { | |
857 | *self | |
858 | } | |
859 | } | |
860 | ||
861 | #[inline] | |
862 | fn to_ascii_lowercase(&self) -> char { | |
863 | if self.is_ascii() { | |
864 | (*self as u8).to_ascii_lowercase() as char | |
865 | } else { | |
866 | *self | |
867 | } | |
868 | } | |
869 | ||
870 | #[inline] | |
871 | fn eq_ignore_ascii_case(&self, other: &char) -> bool { | |
872 | self.to_ascii_lowercase() == other.to_ascii_lowercase() | |
873 | } | |
85aaf69f SL |
874 | |
875 | #[inline] | |
876 | fn make_ascii_uppercase(&mut self) { *self = self.to_ascii_uppercase(); } | |
877 | #[inline] | |
878 | fn make_ascii_lowercase(&mut self) { *self = self.to_ascii_lowercase(); } | |
8bb4bdeb XL |
879 | |
880 | #[inline] | |
881 | fn is_ascii_alphabetic(&self) -> bool { | |
882 | (*self as u32 <= 0x7f) && (*self as u8).is_ascii_alphabetic() | |
883 | } | |
884 | ||
885 | #[inline] | |
886 | fn is_ascii_uppercase(&self) -> bool { | |
887 | (*self as u32 <= 0x7f) && (*self as u8).is_ascii_uppercase() | |
888 | } | |
889 | ||
890 | #[inline] | |
891 | fn is_ascii_lowercase(&self) -> bool { | |
892 | (*self as u32 <= 0x7f) && (*self as u8).is_ascii_lowercase() | |
893 | } | |
894 | ||
895 | #[inline] | |
896 | fn is_ascii_alphanumeric(&self) -> bool { | |
897 | (*self as u32 <= 0x7f) && (*self as u8).is_ascii_alphanumeric() | |
898 | } | |
899 | ||
900 | #[inline] | |
901 | fn is_ascii_digit(&self) -> bool { | |
902 | (*self as u32 <= 0x7f) && (*self as u8).is_ascii_digit() | |
903 | } | |
904 | ||
905 | #[inline] | |
906 | fn is_ascii_hexdigit(&self) -> bool { | |
907 | (*self as u32 <= 0x7f) && (*self as u8).is_ascii_hexdigit() | |
908 | } | |
909 | ||
910 | #[inline] | |
911 | fn is_ascii_punctuation(&self) -> bool { | |
912 | (*self as u32 <= 0x7f) && (*self as u8).is_ascii_punctuation() | |
913 | } | |
914 | ||
915 | #[inline] | |
916 | fn is_ascii_graphic(&self) -> bool { | |
917 | (*self as u32 <= 0x7f) && (*self as u8).is_ascii_graphic() | |
918 | } | |
919 | ||
920 | #[inline] | |
921 | fn is_ascii_whitespace(&self) -> bool { | |
922 | (*self as u32 <= 0x7f) && (*self as u8).is_ascii_whitespace() | |
923 | } | |
924 | ||
925 | #[inline] | |
926 | fn is_ascii_control(&self) -> bool { | |
927 | (*self as u32 <= 0x7f) && (*self as u8).is_ascii_control() | |
928 | } | |
85aaf69f SL |
929 | } |
930 | ||
931 | /// An iterator over the escaped version of a byte, constructed via | |
932 | /// `std::ascii::escape_default`. | |
933 | #[stable(feature = "rust1", since = "1.0.0")] | |
934 | pub struct EscapeDefault { | |
935 | range: Range<usize>, | |
936 | data: [u8; 4], | |
1a4d82fc JJ |
937 | } |
938 | ||
c34b1796 | 939 | /// Returns an iterator that produces an escaped version of a `u8`. |
1a4d82fc JJ |
940 | /// |
941 | /// The default is chosen with a bias toward producing literals that are | |
942 | /// legal in a variety of languages, including C++11 and similar C-family | |
943 | /// languages. The exact rules are: | |
944 | /// | |
945 | /// - Tab, CR and LF are escaped as '\t', '\r' and '\n' respectively. | |
946 | /// - Single-quote, double-quote and backslash chars are backslash-escaped. | |
947 | /// - Any other chars in the range [0x20,0x7e] are not escaped. | |
85aaf69f | 948 | /// - Any other chars are given hex escapes of the form '\xNN'. |
1a4d82fc | 949 | /// - Unicode escapes are never generated by this function. |
c34b1796 AL |
950 | /// |
951 | /// # Examples | |
952 | /// | |
953 | /// ``` | |
954 | /// use std::ascii; | |
955 | /// | |
956 | /// let escaped = ascii::escape_default(b'0').next().unwrap(); | |
957 | /// assert_eq!(b'0', escaped); | |
958 | /// | |
959 | /// let mut escaped = ascii::escape_default(b'\t'); | |
960 | /// | |
961 | /// assert_eq!(b'\\', escaped.next().unwrap()); | |
962 | /// assert_eq!(b't', escaped.next().unwrap()); | |
963 | /// ``` | |
85aaf69f SL |
964 | #[stable(feature = "rust1", since = "1.0.0")] |
965 | pub fn escape_default(c: u8) -> EscapeDefault { | |
966 | let (data, len) = match c { | |
967 | b'\t' => ([b'\\', b't', 0, 0], 2), | |
968 | b'\r' => ([b'\\', b'r', 0, 0], 2), | |
969 | b'\n' => ([b'\\', b'n', 0, 0], 2), | |
970 | b'\\' => ([b'\\', b'\\', 0, 0], 2), | |
971 | b'\'' => ([b'\\', b'\'', 0, 0], 2), | |
972 | b'"' => ([b'\\', b'"', 0, 0], 2), | |
973 | b'\x20' ... b'\x7e' => ([c, 0, 0, 0], 1), | |
974 | _ => ([b'\\', b'x', hexify(c >> 4), hexify(c & 0xf)], 4), | |
975 | }; | |
976 | ||
c34b1796 | 977 | return EscapeDefault { range: (0.. len), data: data }; |
85aaf69f SL |
978 | |
979 | fn hexify(b: u8) -> u8 { | |
980 | match b { | |
981 | 0 ... 9 => b'0' + b, | |
982 | _ => b'a' + b - 10, | |
1a4d82fc JJ |
983 | } |
984 | } | |
985 | } | |
986 | ||
85aaf69f SL |
987 | #[stable(feature = "rust1", since = "1.0.0")] |
988 | impl Iterator for EscapeDefault { | |
989 | type Item = u8; | |
990 | fn next(&mut self) -> Option<u8> { self.range.next().map(|i| self.data[i]) } | |
991 | fn size_hint(&self) -> (usize, Option<usize>) { self.range.size_hint() } | |
992 | } | |
993 | #[stable(feature = "rust1", since = "1.0.0")] | |
994 | impl DoubleEndedIterator for EscapeDefault { | |
995 | fn next_back(&mut self) -> Option<u8> { | |
996 | self.range.next_back().map(|i| self.data[i]) | |
997 | } | |
998 | } | |
999 | #[stable(feature = "rust1", since = "1.0.0")] | |
1000 | impl ExactSizeIterator for EscapeDefault {} | |
9e0c209e SL |
1001 | #[unstable(feature = "fused", issue = "35602")] |
1002 | impl FusedIterator for EscapeDefault {} | |
1003 | ||
8bb4bdeb | 1004 | #[stable(feature = "std_debug", since = "1.16.0")] |
32a655c1 SL |
1005 | impl fmt::Debug for EscapeDefault { |
1006 | fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { | |
1007 | f.pad("EscapeDefault { .. }") | |
1008 | } | |
1009 | } | |
1010 | ||
85aaf69f | 1011 | |
1a4d82fc JJ |
1012 | static ASCII_LOWERCASE_MAP: [u8; 256] = [ |
1013 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
1014 | 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, | |
1015 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, | |
1016 | 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, | |
1017 | b' ', b'!', b'"', b'#', b'$', b'%', b'&', b'\'', | |
1018 | b'(', b')', b'*', b'+', b',', b'-', b'.', b'/', | |
1019 | b'0', b'1', b'2', b'3', b'4', b'5', b'6', b'7', | |
1020 | b'8', b'9', b':', b';', b'<', b'=', b'>', b'?', | |
1021 | b'@', | |
1022 | ||
1023 | b'a', b'b', b'c', b'd', b'e', b'f', b'g', | |
1024 | b'h', b'i', b'j', b'k', b'l', b'm', b'n', b'o', | |
1025 | b'p', b'q', b'r', b's', b't', b'u', b'v', b'w', | |
1026 | b'x', b'y', b'z', | |
1027 | ||
1028 | b'[', b'\\', b']', b'^', b'_', | |
1029 | b'`', b'a', b'b', b'c', b'd', b'e', b'f', b'g', | |
1030 | b'h', b'i', b'j', b'k', b'l', b'm', b'n', b'o', | |
1031 | b'p', b'q', b'r', b's', b't', b'u', b'v', b'w', | |
1032 | b'x', b'y', b'z', b'{', b'|', b'}', b'~', 0x7f, | |
1033 | 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, | |
1034 | 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, | |
1035 | 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, | |
1036 | 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, | |
1037 | 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, | |
1038 | 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, | |
1039 | 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, | |
1040 | 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, | |
1041 | 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, | |
1042 | 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, | |
1043 | 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, | |
1044 | 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, | |
1045 | 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, | |
1046 | 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, | |
1047 | 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, | |
1048 | 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, | |
1049 | ]; | |
1050 | ||
1051 | static ASCII_UPPERCASE_MAP: [u8; 256] = [ | |
1052 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
1053 | 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, | |
1054 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, | |
1055 | 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, | |
1056 | b' ', b'!', b'"', b'#', b'$', b'%', b'&', b'\'', | |
1057 | b'(', b')', b'*', b'+', b',', b'-', b'.', b'/', | |
1058 | b'0', b'1', b'2', b'3', b'4', b'5', b'6', b'7', | |
1059 | b'8', b'9', b':', b';', b'<', b'=', b'>', b'?', | |
1060 | b'@', b'A', b'B', b'C', b'D', b'E', b'F', b'G', | |
1061 | b'H', b'I', b'J', b'K', b'L', b'M', b'N', b'O', | |
1062 | b'P', b'Q', b'R', b'S', b'T', b'U', b'V', b'W', | |
1063 | b'X', b'Y', b'Z', b'[', b'\\', b']', b'^', b'_', | |
1064 | b'`', | |
1065 | ||
1066 | b'A', b'B', b'C', b'D', b'E', b'F', b'G', | |
1067 | b'H', b'I', b'J', b'K', b'L', b'M', b'N', b'O', | |
1068 | b'P', b'Q', b'R', b'S', b'T', b'U', b'V', b'W', | |
1069 | b'X', b'Y', b'Z', | |
1070 | ||
1071 | b'{', b'|', b'}', b'~', 0x7f, | |
1072 | 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, | |
1073 | 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, | |
1074 | 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, | |
1075 | 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, | |
1076 | 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, | |
1077 | 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, | |
1078 | 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, | |
1079 | 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, | |
1080 | 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, | |
1081 | 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, | |
1082 | 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, | |
1083 | 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, | |
1084 | 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, | |
1085 | 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, | |
1086 | 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, | |
1087 | 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, | |
1088 | ]; | |
1089 | ||
8bb4bdeb XL |
1090 | enum AsciiCharacterClass { |
1091 | C, // control | |
1092 | Cw, // control whitespace | |
1093 | W, // whitespace | |
1094 | D, // digit | |
1095 | L, // lowercase | |
1096 | Lx, // lowercase hex digit | |
1097 | U, // uppercase | |
1098 | Ux, // uppercase hex digit | |
1099 | P, // punctuation | |
1100 | } | |
1101 | use self::AsciiCharacterClass::*; | |
1102 | ||
1103 | static ASCII_CHARACTER_CLASS: [AsciiCharacterClass; 128] = [ | |
1104 | // _0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _a _b _c _d _e _f | |
1105 | C, C, C, C, C, C, C, C, C, Cw,Cw,C, Cw,Cw,C, C, // 0_ | |
1106 | C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, // 1_ | |
1107 | W, P, P, P, P, P, P, P, P, P, P, P, P, P, P, P, // 2_ | |
1108 | D, D, D, D, D, D, D, D, D, D, P, P, P, P, P, P, // 3_ | |
1109 | P, Ux,Ux,Ux,Ux,Ux,Ux,U, U, U, U, U, U, U, U, U, // 4_ | |
1110 | U, U, U, U, U, U, U, U, U, U, U, P, P, P, P, P, // 5_ | |
1111 | P, Lx,Lx,Lx,Lx,Lx,Lx,L, L, L, L, L, L, L, L, L, // 6_ | |
1112 | L, L, L, L, L, L, L, L, L, L, L, P, P, P, P, C, // 7_ | |
1113 | ]; | |
1a4d82fc JJ |
1114 | |
1115 | #[cfg(test)] | |
1116 | mod tests { | |
1a4d82fc JJ |
1117 | use super::*; |
1118 | use char::from_u32; | |
1119 | ||
1120 | #[test] | |
c1a9b12d SL |
1121 | fn test_is_ascii() { |
1122 | assert!(b"".is_ascii()); | |
1123 | assert!(b"banana\0\x7F".is_ascii()); | |
1124 | assert!(b"banana\0\x7F".iter().all(|b| b.is_ascii())); | |
1125 | assert!(!b"Vi\xe1\xbb\x87t Nam".is_ascii()); | |
1126 | assert!(!b"Vi\xe1\xbb\x87t Nam".iter().all(|b| b.is_ascii())); | |
1127 | assert!(!b"\xe1\xbb\x87".iter().any(|b| b.is_ascii())); | |
1a4d82fc | 1128 | |
1a4d82fc | 1129 | assert!("".is_ascii()); |
c1a9b12d SL |
1130 | assert!("banana\0\u{7F}".is_ascii()); |
1131 | assert!("banana\0\u{7F}".chars().all(|c| c.is_ascii())); | |
1132 | assert!(!"ประเทศไทย中华Việt Nam".chars().all(|c| c.is_ascii())); | |
1133 | assert!(!"ประเทศไทย中华ệ ".chars().any(|c| c.is_ascii())); | |
1a4d82fc JJ |
1134 | } |
1135 | ||
1136 | #[test] | |
1137 | fn test_to_ascii_uppercase() { | |
1138 | assert_eq!("url()URL()uRl()ürl".to_ascii_uppercase(), "URL()URL()URL()üRL"); | |
1139 | assert_eq!("hıKß".to_ascii_uppercase(), "HıKß"); | |
1140 | ||
c34b1796 | 1141 | for i in 0..501 { |
1a4d82fc JJ |
1142 | let upper = if 'a' as u32 <= i && i <= 'z' as u32 { i + 'A' as u32 - 'a' as u32 } |
1143 | else { i }; | |
1144 | assert_eq!((from_u32(i).unwrap()).to_string().to_ascii_uppercase(), | |
1145 | (from_u32(upper).unwrap()).to_string()); | |
1a4d82fc JJ |
1146 | } |
1147 | } | |
1148 | ||
1149 | #[test] | |
1150 | fn test_to_ascii_lowercase() { | |
1151 | assert_eq!("url()URL()uRl()Ürl".to_ascii_lowercase(), "url()url()url()Ürl"); | |
1152 | // Dotted capital I, Kelvin sign, Sharp S. | |
1153 | assert_eq!("HİKß".to_ascii_lowercase(), "hİKß"); | |
1154 | ||
c34b1796 | 1155 | for i in 0..501 { |
1a4d82fc JJ |
1156 | let lower = if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 } |
1157 | else { i }; | |
1158 | assert_eq!((from_u32(i).unwrap()).to_string().to_ascii_lowercase(), | |
1159 | (from_u32(lower).unwrap()).to_string()); | |
1a4d82fc JJ |
1160 | } |
1161 | } | |
1162 | ||
c1a9b12d SL |
1163 | #[test] |
1164 | fn test_make_ascii_lower_case() { | |
1165 | macro_rules! test { | |
1166 | ($from: expr, $to: expr) => { | |
1167 | { | |
1168 | let mut x = $from; | |
1169 | x.make_ascii_lowercase(); | |
1170 | assert_eq!(x, $to); | |
1171 | } | |
1172 | } | |
1173 | } | |
1174 | test!(b'A', b'a'); | |
1175 | test!(b'a', b'a'); | |
1176 | test!(b'!', b'!'); | |
1177 | test!('A', 'a'); | |
1178 | test!('À', 'À'); | |
1179 | test!('a', 'a'); | |
1180 | test!('!', '!'); | |
1181 | test!(b"H\xc3\x89".to_vec(), b"h\xc3\x89"); | |
1182 | test!("HİKß".to_string(), "hİKß"); | |
1183 | } | |
1184 | ||
1185 | ||
1186 | #[test] | |
1187 | fn test_make_ascii_upper_case() { | |
1188 | macro_rules! test { | |
1189 | ($from: expr, $to: expr) => { | |
1190 | { | |
1191 | let mut x = $from; | |
1192 | x.make_ascii_uppercase(); | |
1193 | assert_eq!(x, $to); | |
1194 | } | |
1195 | } | |
1196 | } | |
1197 | test!(b'a', b'A'); | |
1198 | test!(b'A', b'A'); | |
1199 | test!(b'!', b'!'); | |
1200 | test!('a', 'A'); | |
1201 | test!('à', 'à'); | |
1202 | test!('A', 'A'); | |
1203 | test!('!', '!'); | |
1204 | test!(b"h\xc3\xa9".to_vec(), b"H\xc3\xa9"); | |
1205 | test!("hıKß".to_string(), "HıKß"); | |
1206 | ||
1207 | let mut x = "Hello".to_string(); | |
1208 | x[..3].make_ascii_uppercase(); // Test IndexMut on String. | |
1209 | assert_eq!(x, "HELlo") | |
1210 | } | |
1211 | ||
1a4d82fc JJ |
1212 | #[test] |
1213 | fn test_eq_ignore_ascii_case() { | |
1214 | assert!("url()URL()uRl()Ürl".eq_ignore_ascii_case("url()url()url()Ürl")); | |
1215 | assert!(!"Ürl".eq_ignore_ascii_case("ürl")); | |
1216 | // Dotted capital I, Kelvin sign, Sharp S. | |
1217 | assert!("HİKß".eq_ignore_ascii_case("hİKß")); | |
1218 | assert!(!"İ".eq_ignore_ascii_case("i")); | |
1219 | assert!(!"K".eq_ignore_ascii_case("k")); | |
1220 | assert!(!"ß".eq_ignore_ascii_case("s")); | |
1221 | ||
c34b1796 | 1222 | for i in 0..501 { |
85aaf69f SL |
1223 | let lower = if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 } |
1224 | else { i }; | |
1a4d82fc | 1225 | assert!((from_u32(i).unwrap()).to_string().eq_ignore_ascii_case( |
85aaf69f | 1226 | &from_u32(lower).unwrap().to_string())); |
1a4d82fc JJ |
1227 | } |
1228 | } | |
54a0048b SL |
1229 | |
1230 | #[test] | |
1231 | fn inference_works() { | |
1232 | let x = "a".to_string(); | |
1233 | x.eq_ignore_ascii_case("A"); | |
1234 | } | |
8bb4bdeb XL |
1235 | |
1236 | // Shorthands used by the is_ascii_* tests. | |
1237 | macro_rules! assert_all { | |
1238 | ($what:ident, $($str:tt),+) => {{ | |
1239 | $( | |
1240 | for b in $str.chars() { | |
1241 | if !b.$what() { | |
1242 | panic!("expected {}({}) but it isn't", | |
1243 | stringify!($what), b); | |
1244 | } | |
1245 | } | |
1246 | for b in $str.as_bytes().iter() { | |
1247 | if !b.$what() { | |
1248 | panic!("expected {}(0x{:02x})) but it isn't", | |
1249 | stringify!($what), b); | |
1250 | } | |
1251 | } | |
1252 | assert!($str.$what()); | |
1253 | assert!($str.as_bytes().$what()); | |
1254 | )+ | |
1255 | }}; | |
1256 | ($what:ident, $($str:tt),+,) => (assert_all!($what,$($str),+)) | |
1257 | } | |
1258 | macro_rules! assert_none { | |
1259 | ($what:ident, $($str:tt),+) => {{ | |
1260 | $( | |
1261 | for b in $str.chars() { | |
1262 | if b.$what() { | |
1263 | panic!("expected not-{}({}) but it is", | |
1264 | stringify!($what), b); | |
1265 | } | |
1266 | } | |
1267 | for b in $str.as_bytes().iter() { | |
1268 | if b.$what() { | |
1269 | panic!("expected not-{}(0x{:02x})) but it is", | |
1270 | stringify!($what), b); | |
1271 | } | |
1272 | } | |
1273 | )* | |
1274 | }}; | |
1275 | ($what:ident, $($str:tt),+,) => (assert_none!($what,$($str),+)) | |
1276 | } | |
1277 | ||
1278 | #[test] | |
1279 | fn test_is_ascii_alphabetic() { | |
1280 | assert_all!(is_ascii_alphabetic, | |
1281 | "", | |
1282 | "abcdefghijklmnopqrstuvwxyz", | |
1283 | "ABCDEFGHIJKLMNOQPRSTUVWXYZ", | |
1284 | ); | |
1285 | assert_none!(is_ascii_alphabetic, | |
1286 | "0123456789", | |
1287 | "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", | |
1288 | " \t\n\x0c\r", | |
1289 | "\x00\x01\x02\x03\x04\x05\x06\x07", | |
1290 | "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", | |
1291 | "\x10\x11\x12\x13\x14\x15\x16\x17", | |
1292 | "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", | |
1293 | "\x7f", | |
1294 | ); | |
1295 | } | |
1296 | ||
1297 | #[test] | |
1298 | fn test_is_ascii_uppercase() { | |
1299 | assert_all!(is_ascii_uppercase, | |
1300 | "", | |
1301 | "ABCDEFGHIJKLMNOQPRSTUVWXYZ", | |
1302 | ); | |
1303 | assert_none!(is_ascii_uppercase, | |
1304 | "abcdefghijklmnopqrstuvwxyz", | |
1305 | "0123456789", | |
1306 | "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", | |
1307 | " \t\n\x0c\r", | |
1308 | "\x00\x01\x02\x03\x04\x05\x06\x07", | |
1309 | "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", | |
1310 | "\x10\x11\x12\x13\x14\x15\x16\x17", | |
1311 | "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", | |
1312 | "\x7f", | |
1313 | ); | |
1314 | } | |
1315 | ||
1316 | #[test] | |
1317 | fn test_is_ascii_lowercase() { | |
1318 | assert_all!(is_ascii_lowercase, | |
1319 | "abcdefghijklmnopqrstuvwxyz", | |
1320 | ); | |
1321 | assert_none!(is_ascii_lowercase, | |
1322 | "ABCDEFGHIJKLMNOQPRSTUVWXYZ", | |
1323 | "0123456789", | |
1324 | "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", | |
1325 | " \t\n\x0c\r", | |
1326 | "\x00\x01\x02\x03\x04\x05\x06\x07", | |
1327 | "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", | |
1328 | "\x10\x11\x12\x13\x14\x15\x16\x17", | |
1329 | "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", | |
1330 | "\x7f", | |
1331 | ); | |
1332 | } | |
1333 | ||
1334 | #[test] | |
1335 | fn test_is_ascii_alphanumeric() { | |
1336 | assert_all!(is_ascii_alphanumeric, | |
1337 | "", | |
1338 | "abcdefghijklmnopqrstuvwxyz", | |
1339 | "ABCDEFGHIJKLMNOQPRSTUVWXYZ", | |
1340 | "0123456789", | |
1341 | ); | |
1342 | assert_none!(is_ascii_alphanumeric, | |
1343 | "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", | |
1344 | " \t\n\x0c\r", | |
1345 | "\x00\x01\x02\x03\x04\x05\x06\x07", | |
1346 | "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", | |
1347 | "\x10\x11\x12\x13\x14\x15\x16\x17", | |
1348 | "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", | |
1349 | "\x7f", | |
1350 | ); | |
1351 | } | |
1352 | ||
1353 | #[test] | |
1354 | fn test_is_ascii_digit() { | |
1355 | assert_all!(is_ascii_digit, | |
1356 | "", | |
1357 | "0123456789", | |
1358 | ); | |
1359 | assert_none!(is_ascii_digit, | |
1360 | "abcdefghijklmnopqrstuvwxyz", | |
1361 | "ABCDEFGHIJKLMNOQPRSTUVWXYZ", | |
1362 | "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", | |
1363 | " \t\n\x0c\r", | |
1364 | "\x00\x01\x02\x03\x04\x05\x06\x07", | |
1365 | "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", | |
1366 | "\x10\x11\x12\x13\x14\x15\x16\x17", | |
1367 | "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", | |
1368 | "\x7f", | |
1369 | ); | |
1370 | } | |
1371 | ||
1372 | #[test] | |
1373 | fn test_is_ascii_hexdigit() { | |
1374 | assert_all!(is_ascii_hexdigit, | |
1375 | "", | |
1376 | "0123456789", | |
1377 | "abcdefABCDEF", | |
1378 | ); | |
1379 | assert_none!(is_ascii_hexdigit, | |
1380 | "ghijklmnopqrstuvwxyz", | |
1381 | "GHIJKLMNOQPRSTUVWXYZ", | |
1382 | "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", | |
1383 | " \t\n\x0c\r", | |
1384 | "\x00\x01\x02\x03\x04\x05\x06\x07", | |
1385 | "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", | |
1386 | "\x10\x11\x12\x13\x14\x15\x16\x17", | |
1387 | "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", | |
1388 | "\x7f", | |
1389 | ); | |
1390 | } | |
1391 | ||
1392 | #[test] | |
1393 | fn test_is_ascii_punctuation() { | |
1394 | assert_all!(is_ascii_punctuation, | |
1395 | "", | |
1396 | "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", | |
1397 | ); | |
1398 | assert_none!(is_ascii_punctuation, | |
1399 | "abcdefghijklmnopqrstuvwxyz", | |
1400 | "ABCDEFGHIJKLMNOQPRSTUVWXYZ", | |
1401 | "0123456789", | |
1402 | " \t\n\x0c\r", | |
1403 | "\x00\x01\x02\x03\x04\x05\x06\x07", | |
1404 | "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", | |
1405 | "\x10\x11\x12\x13\x14\x15\x16\x17", | |
1406 | "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", | |
1407 | "\x7f", | |
1408 | ); | |
1409 | } | |
1410 | ||
1411 | #[test] | |
1412 | fn test_is_ascii_graphic() { | |
1413 | assert_all!(is_ascii_graphic, | |
1414 | "", | |
1415 | "abcdefghijklmnopqrstuvwxyz", | |
1416 | "ABCDEFGHIJKLMNOQPRSTUVWXYZ", | |
1417 | "0123456789", | |
1418 | "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", | |
1419 | ); | |
1420 | assert_none!(is_ascii_graphic, | |
1421 | " \t\n\x0c\r", | |
1422 | "\x00\x01\x02\x03\x04\x05\x06\x07", | |
1423 | "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", | |
1424 | "\x10\x11\x12\x13\x14\x15\x16\x17", | |
1425 | "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", | |
1426 | "\x7f", | |
1427 | ); | |
1428 | } | |
1429 | ||
1430 | #[test] | |
1431 | fn test_is_ascii_whitespace() { | |
1432 | assert_all!(is_ascii_whitespace, | |
1433 | "", | |
1434 | " \t\n\x0c\r", | |
1435 | ); | |
1436 | assert_none!(is_ascii_whitespace, | |
1437 | "abcdefghijklmnopqrstuvwxyz", | |
1438 | "ABCDEFGHIJKLMNOQPRSTUVWXYZ", | |
1439 | "0123456789", | |
1440 | "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", | |
1441 | "\x00\x01\x02\x03\x04\x05\x06\x07", | |
1442 | "\x08\x0b\x0e\x0f", | |
1443 | "\x10\x11\x12\x13\x14\x15\x16\x17", | |
1444 | "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", | |
1445 | "\x7f", | |
1446 | ); | |
1447 | } | |
1448 | ||
1449 | #[test] | |
1450 | fn test_is_ascii_control() { | |
1451 | assert_all!(is_ascii_control, | |
1452 | "", | |
1453 | "\x00\x01\x02\x03\x04\x05\x06\x07", | |
1454 | "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", | |
1455 | "\x10\x11\x12\x13\x14\x15\x16\x17", | |
1456 | "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", | |
1457 | "\x7f", | |
1458 | ); | |
1459 | assert_none!(is_ascii_control, | |
1460 | "abcdefghijklmnopqrstuvwxyz", | |
1461 | "ABCDEFGHIJKLMNOQPRSTUVWXYZ", | |
1462 | "0123456789", | |
1463 | "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", | |
1464 | " ", | |
1465 | ); | |
1466 | } | |
1a4d82fc | 1467 | } |