layout/style/test/test_parser_diagnostics_unprintables.html@7e26c7da4463
layout/style/test/test_parser_diagnostics_unprintables.html
Wed, 31 Dec 2014 06:55:50 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:55:50 +0100
- changeset 2
- 7e26c7da4463
- permissions
- -rw-r--r--
Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2
1 <!doctype html>
2 <html>
3 <head>
4 <meta charset="utf-8">
5 <title>Test for CSS parser diagnostics escaping unprintable
6 characters correctly</title>
7 <script src="/tests/SimpleTest/SimpleTest.js"></script>
8 <link rel="stylesheet" href="/tests/SimpleTest/test.css">
9 </head>
10 <body>
11 <a target="_blank"
12 href="https://bugzilla.mozilla.org/show_bug.cgi?id=229827"
13 >Mozilla Bug 229827</a>
14 <style id="testbench"></style>
15 <script type="application/javascript;version=1.8">
16 // This test has intimate knowledge of how to get the CSS parser to
17 // emit diagnostics that contain text under control of the user.
18 // That's not the point of the test, though; the point is only that
19 // *that text* is properly escaped.
21 // There is one "pattern" for each code path through the error reporter
22 // that might need to escape some kind of user-supplied text.
23 // Each "pattern" is tested once with each of the "substitution"s below:
24 // <t>, <i>, and <s> are replaced by the t:, i:, and s: fields of
25 // each substitution object in turn.
26 const patterns = [
27 // REPORT_UNEXPECTED_P (only ever used in contexts where identifier-like
28 // escaping is appropriate)
29 { i: "<t>|x{}", o: "prefix '<i>'" },
30 // REPORT_UNEXPECTED_TOKEN with:
31 // _Ident
32 { i: "@namespace fnord <t>;", o: "within @namespace: '<i>'" },
33 // _Ref
34 { i: "@namespace fnord #<t>;", o: "within @namespace: '#<i>'" },
35 // _Function
36 { i: "@namespace fnord <t>();", o: "within @namespace: '<i>('" },
37 // _Dimension
38 { i: "@namespace fnord 14<t>;", o: "within @namespace: '14<i>'" },
39 // _AtKeyword
40 { i: "x{@<t>: }", o: "declaration but found '@<i>'." },
41 // _String
42 { i: "x{ '<t>'}" , o: "declaration but found ''<s>''." },
43 // _Bad_String
44 { i: "x{ '<t>\n}", o: "declaration but found ''<s>'." },
45 // _URL
46 { i: "x{ url('<t>')}", o: "declaration but found 'url('<s>')'." },
47 // _Bad_URL
48 { i: "x{ url('<t>'.)}" , o: "declaration but found 'url('<s>''." }
49 ];
51 // Blocks of characters to test, and how they should be escaped when
52 // they appear in identifiers and string constants.
53 const substitutions = [
54 // ASCII printables that _can_ normally appear in identifiers,
55 // so should of course _not_ be escaped.
56 { t: "-_0123456789", i: "-_0123456789",
57 s: "-_0123456789" },
58 { t: "abcdefghijklmnopqrstuvwxyz", i: "abcdefghijklmnopqrstuvwxyz",
59 s: "abcdefghijklmnopqrstuvwxyz" },
60 { t: "ABCDEFGHIJKLMNOPQRSTUVWXYZ", i: "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
61 s: "ABCDEFGHIJKLMNOPQRSTUVWXYZ" },
63 // ASCII printables that are not normally valid as the first character
64 // of an identifier, or the character immediately after a leading dash,
65 // but can be forced into that position with escapes.
66 { t: "\\-", i: "\\-", s: "-" },
67 { t: "\\30 ", i: "\\30 ", s: "0" },
68 { t: "\\31 ", i: "\\31 ", s: "1" },
69 { t: "\\32 ", i: "\\32 ", s: "2" },
70 { t: "\\33 ", i: "\\33 ", s: "3" },
71 { t: "\\34 ", i: "\\34 ", s: "4" },
72 { t: "\\35 ", i: "\\35 ", s: "5" },
73 { t: "\\36 ", i: "\\36 ", s: "6" },
74 { t: "\\37 ", i: "\\37 ", s: "7" },
75 { t: "\\38 ", i: "\\38 ", s: "8" },
76 { t: "\\39 ", i: "\\39 ", s: "9" },
77 { t: "-\\-", i: "-\\-", s: "--" },
78 { t: "-\\30 ", i: "-\\30 ", s: "-0" },
79 { t: "-\\31 ", i: "-\\31 ", s: "-1" },
80 { t: "-\\32 ", i: "-\\32 ", s: "-2" },
81 { t: "-\\33 ", i: "-\\33 ", s: "-3" },
82 { t: "-\\34 ", i: "-\\34 ", s: "-4" },
83 { t: "-\\35 ", i: "-\\35 ", s: "-5" },
84 { t: "-\\36 ", i: "-\\36 ", s: "-6" },
85 { t: "-\\37 ", i: "-\\37 ", s: "-7" },
86 { t: "-\\38 ", i: "-\\38 ", s: "-8" },
87 { t: "-\\39 ", i: "-\\39 ", s: "-9" },
89 // ASCII printables that must be escaped in identifiers.
90 // Most of these should not be escaped in strings.
91 { t: "\\!\\\"\\#\\$", i: "\\!\\\"\\#\\$", s: "!\\\"#$" },
92 { t: "\\%\\&\\'\\(", i: "\\%\\&\\'\\(", s: "%&\\'(" },
93 { t: "\\)\\*\\+\\,", i: "\\)\\*\\+\\,", s: ")*+," },
94 { t: "\\.\\/\\:\\;", i: "\\.\\/\\:\\;", s: "./:;" },
95 { t: "\\<\\=\\>\\?", i: "\\<\\=\\>\\?", s: "<=>?", },
96 { t: "\\@\\[\\\\\\]", i: "\\@\\[\\\\\\]", s: "@[\\\\]" },
97 { t: "\\^\\`\\{\\}\\~", i: "\\^\\`\\{\\}\\~", s: "^`{}~" },
99 // U+0000 - U+0020 (C0 controls, space)
100 // U+000A LINE FEED, U+000C FORM FEED, and U+000D CARRIAGE RETURN
101 // cannot be put into a CSS token as escaped literal characters, so
102 // we do them with hex escapes instead.
103 // The parser replaces U+0000 with U+FFFD.
104 { t: "\\\x00\\\x01\\\x02\\\x03", i: "�\\1 \\2 \\3 ",
105 s: "�\\1 \\2 \\3 " },
106 { t: "\\\x04\\\x05\\\x06\\\x07", i: "\\4 \\5 \\6 \\7 ",
107 s: "\\4 \\5 \\6 \\7 " },
108 { t: "\\\x08\\\x09\\000A\\\x0B", i: "\\8 \\9 \\A \\B ",
109 s: "\\8 \\9 \\A \\B " },
110 { t: "\\000C\\000D\\\x0E\\\x0F", i: "\\C \\D \\E \\F ",
111 s: "\\C \\D \\E \\F " },
112 { t: "\\\x10\\\x11\\\x12\\\x13", i: "\\10 \\11 \\12 \\13 ",
113 s: "\\10 \\11 \\12 \\13 " },
114 { t: "\\\x14\\\x15\\\x16\\\x17", i: "\\14 \\15 \\16 \\17 ",
115 s: "\\14 \\15 \\16 \\17 " },
116 { t: "\\\x18\\\x19\\\x1A\\\x1B", i: "\\18 \\19 \\1A \\1B ",
117 s: "\\18 \\19 \\1A \\1B " },
118 { t: "\\\x1C\\\x1D\\\x1E\\\x1F\\ ", i: "\\1C \\1D \\1E \\1F \\ ",
119 s: "\\1C \\1D \\1E \\1F " },
121 // U+007F (DELETE) and U+0080 - U+009F (C1 controls)
122 { t: "\\\x7f\\\x80\\\x81\\\x82", i: "\\7F \\80 \\81 \\82 ",
123 s: "\\7F \\80 \\81 \\82 " },
124 { t: "\\\x83\\\x84\\\x85\\\x86", i: "\\83 \\84 \\85 \\86 ",
125 s: "\\83 \\84 \\85 \\86 " },
126 { t: "\\\x87\\\x88\\\x89\\\x8A", i: "\\87 \\88 \\89 \\8A ",
127 s: "\\87 \\88 \\89 \\8A " },
128 { t: "\\\x8B\\\x8C\\\x8D\\\x8E", i: "\\8B \\8C \\8D \\8E ",
129 s: "\\8B \\8C \\8D \\8E " },
130 { t: "\\\x8F\\\x90\\\x91\\\x92", i: "\\8F \\90 \\91 \\92 ",
131 s: "\\8F \\90 \\91 \\92 " },
132 { t: "\\\x93\\\x94\\\x95\\\x96", i: "\\93 \\94 \\95 \\96 ",
133 s: "\\93 \\94 \\95 \\96 " },
134 { t: "\\\x97\\\x98\\\x99\\\x9A", i: "\\97 \\98 \\99 \\9A ",
135 s: "\\97 \\98 \\99 \\9A " },
136 { t: "\\\x9B\\\x9C\\\x9D\\\x9E\\\x9F", i: "\\9B \\9C \\9D \\9E \\9F ",
137 s: "\\9B \\9C \\9D \\9E \\9F " },
139 // CSS doesn't bother with the full Unicode rules for identifiers,
140 // instead declaring that any code point greater than or equal to
141 // U+00A0 is a valid identifier character. Test a small handful
142 // of both basic and astral plane characters.
144 // Arabic (caution to editors: there is a possibly-invisible U+200E
145 // LEFT-TO-RIGHT MARK in each string, just before the close quote)
146 { t: "أبجدهوزحطيكلمنسعفصقرشتثخذضظغ",
147 i: "أبجدهوزحطيكلمنسعفصقرشتثخذضظغ",
148 s: "أبجدهوزحطيكلمنسعفصقرشتثخذضظغ" },
150 // Box drawing
151 { t: "─│┌┐└┘├┤┬┴┼╭╮╯╰╴╵╶╷",
152 i: "─│┌┐└┘├┤┬┴┼╭╮╯╰╴╵╶╷",
153 s: "─│┌┐└┘├┤┬┴┼╭╮╯╰╴╵╶╷" },
155 // CJK Unified Ideographs
156 { t: "一丁丂七丄丅丆万丈三上下丌不与丏",
157 i: "一丁丂七丄丅丆万丈三上下丌不与丏",
158 s: "一丁丂七丄丅丆万丈三上下丌不与丏" },
160 // CJK Unified Ideographs Extension B (astral)
161 { t: "𠀀𠀁𠀂𠀃𠀄𠀅𠀆𠀇𠀈𠀉𠀊𠀋𠀌𠀍𠀎𠀏",
162 i: "𠀀𠀁𠀂𠀃𠀄𠀅𠀆𠀇𠀈𠀉𠀊𠀋𠀌𠀍𠀎𠀏",
163 s: "𠀀𠀁𠀂𠀃𠀄𠀅𠀆𠀇𠀈𠀉𠀊𠀋𠀌𠀍𠀎𠀏" },
165 // Devanagari
166 { t: "कखगघङचछजझञटठडढणतथदधनपफबभमयरलळवशषसह",
167 i: "कखगघङचछजझञटठडढणतथदधनपफबभमयरलळवशषसह",
168 s: "कखगघङचछजझञटठडढणतथदधनपफबभमयरलळवशषसह" },
170 // Emoticons (astral)
171 { t: "😁😂😃😄😅😆😇😈😉😊😋😌😍😎😏😐",
172 i: "😁😂😃😄😅😆😇😈😉😊😋😌😍😎😏😐",
173 s: "😁😂😃😄😅😆😇😈😉😊😋😌😍😎😏😐" },
175 // Greek
176 { t: "αβγδεζηθικλμνξοπρςστυφχψω",
177 i: "αβγδεζηθικλμνξοπρςστυφχψω",
178 s: "αβγδεζηθικλμνξοπρςστυφχψω" }
179 ];
181 const npatterns = patterns.length;
182 const nsubstitutions = substitutions.length;
184 function quotemeta(str) {
185 return str.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
186 }
187 function subst(str, sub) {
188 return str.replace("<t>", sub.t)
189 .replace("<i>", sub.i)
190 .replace("<s>", sub.s);
191 }
193 var curpat = 0;
194 var cursubst = -1;
195 var testbench = document.getElementById("testbench");
197 function nextTest() {
198 cursubst++;
199 if (cursubst == nsubstitutions) {
200 curpat++;
201 cursubst = 0;
202 }
203 if (curpat == npatterns) {
204 SimpleTest.finish();
205 return;
206 }
208 let css = subst(patterns[curpat].i, substitutions[cursubst]);
209 let msg = quotemeta(subst(patterns[curpat].o, substitutions[cursubst]));
211 SimpleTest.expectConsoleMessages(function () { testbench.innerHTML = css },
212 [{ errorMessage: new RegExp(msg) }],
213 nextTest);
214 }
216 SimpleTest.waitForExplicitFinish();
217 nextTest();
218 </script>
219 </body>
220 </html>
