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Add old copy of Narcissus from selenium
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Andy Chu
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Dec 30, 2009
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For reference, this is a patched version of Narcissus I found copied into | ||
another project: | ||
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http://github.com/xzilla/phppgadmin | ||
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Apparently it was tried for use in Selenium, but then removed. Possibly has | ||
some useful browser-compatibility fixes. |
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/* ***** BEGIN LICENSE BLOCK ***** | ||
* Version: MPL 1.1/GPL 2.0/LGPL 2.1 | ||
* | ||
* The contents of this file are subject to the Mozilla Public License Version | ||
* 1.1 (the "License"); you may not use this file except in compliance with | ||
* the License. You may obtain a copy of the License at | ||
* http://www.mozilla.org/MPL/ | ||
* | ||
* Software distributed under the License is distributed on an "AS IS" basis, | ||
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License | ||
* for the specific language governing rights and limitations under the | ||
* License. | ||
* | ||
* The Original Code is the Narcissus JavaScript engine. | ||
* | ||
* The Initial Developer of the Original Code is | ||
* Brendan Eich <brendan@mozilla.org>. | ||
* Portions created by the Initial Developer are Copyright (C) 2004 | ||
* the Initial Developer. All Rights Reserved. | ||
* | ||
* Contributor(s): | ||
* | ||
* Alternatively, the contents of this file may be used under the terms of | ||
* either the GNU General Public License Version 2 or later (the "GPL"), or | ||
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), | ||
* in which case the provisions of the GPL or the LGPL are applicable instead | ||
* of those above. If you wish to allow use of your version of this file only | ||
* under the terms of either the GPL or the LGPL, and not to allow others to | ||
* use your version of this file under the terms of the MPL, indicate your | ||
* decision by deleting the provisions above and replace them with the notice | ||
* and other provisions required by the GPL or the LGPL. If you do not delete | ||
* the provisions above, a recipient may use your version of this file under | ||
* the terms of any one of the MPL, the GPL or the LGPL. | ||
* | ||
* ***** END LICENSE BLOCK ***** */ | ||
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/* | ||
* Narcissus - JS implemented in JS. | ||
* | ||
* Well-known constants and lookup tables. Many consts are generated from the | ||
* tokens table via eval to minimize redundancy, so consumers must be compiled | ||
* separately to take advantage of the simple switch-case constant propagation | ||
* done by SpiderMonkey. | ||
*/ | ||
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// jrh | ||
//module('JS.Defs'); | ||
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GLOBAL = this; | ||
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var tokens = [ | ||
// End of source. | ||
"END", | ||
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// Operators and punctuators. Some pair-wise order matters, e.g. (+, -) | ||
// and (UNARY_PLUS, UNARY_MINUS). | ||
"\n", ";", | ||
",", | ||
"=", | ||
"?", ":", "CONDITIONAL", | ||
"||", | ||
"&&", | ||
"|", | ||
"^", | ||
"&", | ||
"==", "!=", "===", "!==", | ||
"<", "<=", ">=", ">", | ||
"<<", ">>", ">>>", | ||
"+", "-", | ||
"*", "/", "%", | ||
"!", "~", "UNARY_PLUS", "UNARY_MINUS", | ||
"++", "--", | ||
".", | ||
"[", "]", | ||
"{", "}", | ||
"(", ")", | ||
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// Nonterminal tree node type codes. | ||
"SCRIPT", "BLOCK", "LABEL", "FOR_IN", "CALL", "NEW_WITH_ARGS", "INDEX", | ||
"ARRAY_INIT", "OBJECT_INIT", "PROPERTY_INIT", "GETTER", "SETTER", | ||
"GROUP", "LIST", | ||
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// Terminals. | ||
"IDENTIFIER", "NUMBER", "STRING", "REGEXP", | ||
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// Keywords. | ||
"break", | ||
"case", "catch", "const", "continue", | ||
"debugger", "default", "delete", "do", | ||
"else", "enum", | ||
"false", "finally", "for", "function", | ||
"if", "in", "instanceof", | ||
"new", "null", | ||
"return", | ||
"switch", | ||
"this", "throw", "true", "try", "typeof", | ||
"var", "void", | ||
"while", "with", | ||
// Extensions | ||
"require", "bless", "mixin", "import" | ||
]; | ||
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// Operator and punctuator mapping from token to tree node type name. | ||
// NB: superstring tokens (e.g., ++) must come before their substring token | ||
// counterparts (+ in the example), so that the opRegExp regular expression | ||
// synthesized from this list makes the longest possible match. | ||
var opTypeNames = { | ||
'\n': "NEWLINE", | ||
';': "SEMICOLON", | ||
',': "COMMA", | ||
'?': "HOOK", | ||
':': "COLON", | ||
'||': "OR", | ||
'&&': "AND", | ||
'|': "BITWISE_OR", | ||
'^': "BITWISE_XOR", | ||
'&': "BITWISE_AND", | ||
'===': "STRICT_EQ", | ||
'==': "EQ", | ||
'=': "ASSIGN", | ||
'!==': "STRICT_NE", | ||
'!=': "NE", | ||
'<<': "LSH", | ||
'<=': "LE", | ||
'<': "LT", | ||
'>>>': "URSH", | ||
'>>': "RSH", | ||
'>=': "GE", | ||
'>': "GT", | ||
'++': "INCREMENT", | ||
'--': "DECREMENT", | ||
'+': "PLUS", | ||
'-': "MINUS", | ||
'*': "MUL", | ||
'/': "DIV", | ||
'%': "MOD", | ||
'!': "NOT", | ||
'~': "BITWISE_NOT", | ||
'.': "DOT", | ||
'[': "LEFT_BRACKET", | ||
']': "RIGHT_BRACKET", | ||
'{': "LEFT_CURLY", | ||
'}': "RIGHT_CURLY", | ||
'(': "LEFT_PAREN", | ||
')': "RIGHT_PAREN" | ||
}; | ||
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// Hash of keyword identifier to tokens index. NB: we must null __proto__ to | ||
// avoid toString, etc. namespace pollution. | ||
var keywords = {__proto__: null}; | ||
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// Define const END, etc., based on the token names. Also map name to index. | ||
var consts = " "; | ||
for (var i = 0, j = tokens.length; i < j; i++) { | ||
if (i > 0) | ||
consts += "; "; | ||
var t = tokens[i]; | ||
if (/^[a-z]/.test(t)) { | ||
consts += t.toUpperCase(); | ||
keywords[t] = i; | ||
} else { | ||
consts += (/^\W/.test(t) ? opTypeNames[t] : t); | ||
} | ||
consts += " = " + i; | ||
tokens[t] = i; | ||
} | ||
eval(consts + ";"); | ||
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// Map assignment operators to their indexes in the tokens array. | ||
var assignOps = ['|', '^', '&', '<<', '>>', '>>>', '+', '-', '*', '/', '%']; | ||
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for (i = 0, j = assignOps.length; i < j; i++) { | ||
t = assignOps[i]; | ||
assignOps[t] = tokens[t]; | ||
} |
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