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| 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. | |
| 20 | |
| 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 ]; | |
| 50 | |
| 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" }, | |
| 62 | |
| 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" }, | |
| 88 | |
| 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: "^`{}~" }, | |
| 98 | |
| 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 " }, | |
| 120 | |
| 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 " }, | |
| 138 | |
| 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. | |
| 143 | |
| 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" }, | |
| 149 | |
| 150 // Box drawing | |
| 151 { t: "─│┌┐└┘├┤┬┴┼╭╮╯╰╴╵╶╷", | |
| 152 i: "─│┌┐└┘├┤┬┴┼╭╮╯╰╴╵╶╷", | |
| 153 s: "─│┌┐└┘├┤┬┴┼╭╮╯╰╴╵╶╷" }, | |
| 154 | |
| 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" }, | |
| 159 | |
| 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" }, | |
| 164 | |
| 165 // Devanagari | |
| 166 { t: "कखगघङचछजझञटठडढणतथदधनपफबभमयरलळवशषसह", | |
| 167 i: "कखगघङचछजझञटठडढणतथदधनपफबभमयरलळवशषसह", | |
| 168 s: "कखगघङचछजझञटठडढणतथदधनपफबभमयरलळवशषसह" }, | |
| 169 | |
| 170 // Emoticons (astral) | |
| 171 { t: "😁😂😃😄😅😆😇😈😉😊😋😌😍😎😏😐", | |
| 172 i: "😁😂😃😄😅😆😇😈😉😊😋😌😍😎😏😐", | |
| 173 s: "😁😂😃😄😅😆😇😈😉😊😋😌😍😎😏😐" }, | |
| 174 | |
| 175 // Greek | |
| 176 { t: "αβγδεζηθικλμνξοπρςστυφχψω", | |
| 177 i: "αβγδεζηθικλμνξοπρςστυφχψω", | |
| 178 s: "αβγδεζηθικλμνξοπρςστυφχψω" } | |
| 179 ]; | |
| 180 | |
| 181 const npatterns = patterns.length; | |
| 182 const nsubstitutions = substitutions.length; | |
| 183 | |
| 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 } | |
| 192 | |
| 193 var curpat = 0; | |
| 194 var cursubst = -1; | |
| 195 var testbench = document.getElementById("testbench"); | |
| 196 | |
| 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 } | |
| 207 | |
| 208 let css = subst(patterns[curpat].i, substitutions[cursubst]); | |
| 209 let msg = quotemeta(subst(patterns[curpat].o, substitutions[cursubst])); | |
| 210 | |
| 211 SimpleTest.expectConsoleMessages(function () { testbench.innerHTML = css }, | |
| 212 [{ errorMessage: new RegExp(msg) }], | |
| 213 nextTest); | |
| 214 } | |
| 215 | |
| 216 SimpleTest.waitForExplicitFinish(); | |
| 217 nextTest(); | |
| 218 </script> | |
| 219 </body> | |
| 220 </html> |
