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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
2 // for details. All rights reserved. Use of this source code is governed by a | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 | |
5 // Test that string escapes work correctly. | |
6 | |
7 testSingleCharacterEscapes() { | |
8 List/*<String>*/ examples = [ | |
9 "\b\f\n\r\t\v", | |
10 '\b\f\n\r\t\v', | |
11 """\b\f\n\r\t\v""", | |
12 '''\b\f\n\r\t\v''', | |
13 ]; | |
14 List values = [8, 12, 10, 13, 9, 11]; | |
15 for (String s in examples) { | |
16 Expect.equals(6, s.length); | |
17 for (int i = 0; i < 6; i++) { | |
18 Expect.equals(values[i], s.charCodeAt(i)); | |
19 } | |
20 } | |
21 | |
22 // An escaped quote isn't part of a multiline end quote. | |
23 Expect.equals(@'"', """\""""); | |
24 Expect.equals(@"'", '''\''''); | |
25 Expect.equals(@'" "', """" \""""); | |
26 Expect.equals(@"' '", '''' \''''); | |
27 Expect.equals(@'"" ', """"" """); | |
28 Expect.equals(@"'' ", ''''' '''); | |
29 } | |
30 | |
31 testXEscapes() { | |
32 var allBytes = | |
33 "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f" + | |
34 "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" + | |
35 "\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f" + | |
36 "\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f" + | |
37 "\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f" + | |
38 "\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f" + | |
39 "\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f" + | |
40 "\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f" + | |
41 "\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f" + | |
42 "\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f" + | |
43 "\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf" + | |
44 "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf" + | |
45 "\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf" + | |
46 "\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf" + | |
47 "\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef" + | |
48 "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff"; | |
49 Expect.equals(256, allBytes.length); | |
50 for (int i = 0; i < 256; i++) { | |
51 Expect.equals(i, allBytes.charCodeAt(i)); | |
52 } | |
53 } | |
54 | |
55 testUEscapes() { | |
56 List/*String*/ examples = | |
57 ["\u0000\u0001\u0022\u0027\u005c\u007f\u0080\u00ff" + | |
58 "\u0100\u1000\ud7ff\ue000\uffff", | |
59 '\u0000\u0001\u0022\u0027\u005c\u007f\u0080\u00ff' + | |
60 '\u0100\u1000\ud7ff\ue000\uffff', | |
61 """\u0000\u0001\u0022\u0027\u005c\u007f\u0080\u00ff""" + | |
62 """\u0100\u1000\ud7ff\ue000\uffff""", | |
63 '''\u0000\u0001\u0022\u0027\u005c\u007f\u0080\u00ff''' + | |
64 '''\u0100\u1000\ud7ff\ue000\uffff''']; | |
65 List/*<int>*/ values = [0, 1, 0x22, 0x27, 0x5c, 0x7f, 0x80, 0xff, | |
66 0x100, 0x1000, 0xd7ff, 0xe000, 0xffff]; | |
67 for (String s in examples) { | |
68 Expect.equals(values.length, s.length); | |
69 for (int i = 0; i < values.length; i++) { | |
70 Expect.equals(values[i], s.charCodeAt(i)); | |
71 } | |
72 } | |
73 // No characters above 0xffff until Leg supports that. | |
74 var long = | |
75 "\u{0}\u{00}\u{000}\u{0000}\u{00000}\u{000000}" + | |
76 "\u{1}\u{01}\u{001}\u{00001}" + | |
77 "\u{ffff}\u{0ffff}\u{00ffff}"; | |
78 var longValues = [0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0xffff, 0xffff, 0xffff]; | |
79 Expect.equals(longValues.length, long.length); | |
80 for (int i = 0; i < longValues.length; i++) { | |
81 Expect.equals(longValues[i], long.charCodeAt(i)); | |
82 } | |
83 } | |
84 | |
85 testIdentityEscapes() { | |
86 // All non-control ASCII characters escaped, except those with special | |
87 // meaning: b, f, n, r, t, u, v, and x (replaced by \x00). | |
88 var asciiLiterals = | |
89 "\ \!\"\#\$\%\&\'\(\)\*\+\,\-\.\/\0\1\2\3\4\5\6\7\8\9\:\;\<\=\>" + | |
90 "\?\@\A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z\[\\\]" + | |
91 "\^\_\`\a\x00\c\d\e\x00\g\h\i\j\k\l\m\x00\o\p\q\x00\s\x00\x00\x00" + | |
92 "\w\x00\y\z\{\|\}\~\"; | |
93 | |
94 Expect.equals(128 - 32, asciiLiterals.length); | |
95 for (int i = 32; i < 128; i++) { | |
96 int code = asciiLiterals.charCodeAt(i - 32); | |
97 if (code != 0) { | |
98 Expect.equals(i, code); | |
99 } | |
100 } | |
101 } | |
102 | |
103 | |
104 testQuotes() { | |
105 // The string [ "' ]. | |
106 String bothQuotes = ' "' "' "; | |
107 Expect.equals(bothQuotes, " \"' "); | |
108 Expect.equals(bothQuotes, ' "\' '); | |
109 Expect.equals(bothQuotes, """ "' """); | |
110 Expect.equals(bothQuotes, ''' "' '''); | |
111 Expect.equals(bothQuotes, @""" "' """); | |
112 Expect.equals(bothQuotes, @''' "' '''); | |
113 } | |
114 | |
115 | |
116 testRawStrings() { | |
117 String raw1 = @'\x00'; | |
118 Expect.equals(4, raw1.length); | |
119 Expect.equals(0x5c, raw1.charCodeAt(0)); | |
120 } | |
121 | |
122 main() { | |
123 // Test \x??. | |
124 testXEscapes(); | |
125 // Test \u???? and \u{?+}. | |
126 testUEscapes(); | |
127 // Test \b, \f, \n, \r, \t, \v. | |
128 testSingleCharacterEscapes(); | |
129 // Test all other single character (identity) escaeps. | |
130 testIdentityEscapes(); | |
131 // Test that quotes are handled correctly. | |
132 testQuotes(); | |
133 // Test that raw strings are raw. | |
134 testRawStrings(); | |
135 } | |
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