/*
Some portions:
Copyright (c) 2008, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.5.1
*/
// create org.antlr module
if (typeof org == "undefined" || !org) {
var org = {};
}
if (typeof org.antlr == "undefined" || !org.antlr) {
/**
* The org.antlr global namespace object. If antlr is already defined, the
* existing antlr object will not be overwritten so that defined
* namespaces are preserved.
* @namespace org.antlr
*/
org.antlr = {};
}
/**
* The global JavaScript object.
*/
org.antlr.global = (function() {
return this;
}).call(null);
/**
* Returns the namespace specified and creates it if it doesn't exist.
*
* Be careful when naming packages. Reserved words may work in some browsers
* and not others. For instance, the following will fail in Safari:
* <pre>
* org.antlr.namespace("really.long.nested.namespace");
* </pre>
* This fails because "long" is a future reserved word in ECMAScript
*
* @static
* @param {Array.<String>} arguments 1-n namespaces to create
* @return {Object} A reference to the last namespace object created
* @example
* org.antlr.namespace("org.antlr.property.package");
*/
org.antlr.namespace = function() {
var a=arguments, o=null, i, j, d;
for (i=0; i<a.length; i=i+1) {
d=a[i].split(".");
o=org.antlr.global;
// ANTLR is implied, so it is ignored if it is included
for (j=0; j<d.length; j=j+1) {
o[d[j]]=o[d[j]] || {};
o=o[d[j]];
}
}
return o;
};
/**
* org.antlr.env is used to keep track of what is known about the library and
* the browsing environment
* @namespace org.antlr.env
*/
org.antlr.env = org.antlr.env || {};
/**
* Do not fork for a browser if it can be avoided. Use feature detection when
* you can. Use the user agent as a last resort. org.antlr.env.ua stores a
* version number for the browser engine, 0 otherwise. This value may or may
* not map to the version number of the browser using the engine. The value is
* presented as a float so that it can easily be used for boolean evaluation
* as well as for looking for a particular range of versions. Because of this,
* some of the granularity of the version info may be lost (e.g., Gecko 1.8.0.9
* reports 1.8).
* @namespace org.antlr.env.ua
*/
org.antlr.env.ua = function() {
var o= /** @lends org.antlr.env.ua */ {
/**
* Internet Explorer version number or 0. Example: 6
* @property ie
* @type float
*/
ie:0,
/**
* Opera version number or 0. Example: 9.2
* @property opera
* @type float
*/
opera:0,
/**
* Gecko engine revision number. Will evaluate to 1 if Gecko
* is detected but the revision could not be found. Other browsers
* will be 0. Example: 1.8
* <pre>
* Firefox 1.0.0.4: 1.7.8 <-- Reports 1.7
* Firefox 1.5.0.9: 1.8.0.9 <-- Reports 1.8
* Firefox 2.0.0.3: 1.8.1.3 <-- Reports 1.8
* Firefox 3 alpha: 1.9a4 <-- Reports 1.9
* </pre>
* @property gecko
* @type float
*/
gecko:0,
/**
* AppleWebKit version. KHTML browsers that are not WebKit browsers
* will evaluate to 1, other browsers 0. Example: 418.9.1
* <pre>
* Safari 1.3.2 (312.6): 312.8.1 <-- Reports 312.8 -- currently the
* latest available for Mac OSX 10.3.
* Safari 2.0.2: 416 <-- hasOwnProperty introduced
* Safari 2.0.4: 418 <-- preventDefault fixed
* Safari 2.0.4 (419.3): 418.9.1 <-- One version of Safari may run
* different versions of webkit
* Safari 2.0.4 (419.3): 419 <-- Tiger installations that have been
* updated, but not updated
* to the latest patch.
* Webkit 212 nightly: 522+ <-- Safari 3.0 precursor (with native SVG
* and many major issues fixed).
* 3.x yahoo.com, flickr:422 <-- Safari 3.x hacks the user agent
* string when hitting yahoo.com and
* flickr.com.
* Safari 3.0.4 (523.12):523.12 <-- First Tiger release - automatic update
* from 2.x via the 10.4.11 OS patch
* Webkit nightly 1/2008:525+ <-- Supports DOMContentLoaded event.
* yahoo.com user agent hack removed.
*
* </pre>
* http://developer.apple.com/internet/safari/uamatrix.html
* @property webkit
* @type float
*/
webkit: 0,
/**
* The mobile property will be set to a string containing any relevant
* user agent information when a modern mobile browser is detected.
* Currently limited to Safari on the iPhone/iPod Touch, Nokia N-series
* devices with the WebKit-based browser, and Opera Mini.
* @property mobile
* @type string
*/
mobile: null,
/**
* Adobe AIR version number or 0. Only populated if webkit is detected.
* Example: 1.0
* @property air
* @type float
*/
air: 0,
/**
* Is this the Rhino interpreter?
* @property rhino
* @type Boolean
*/
rhino: false
};
var ua, m;
try {
ua = navigator.userAgent;
// Modern KHTML browsers should qualify as Safari X-Grade
if ((/KHTML/).test(ua)) {
o.webkit=1;
}
// Modern WebKit browsers are at least X-Grade
m=ua.match(/AppleWebKit\/([^\s]*)/);
if (m&&m[1]) {
o.webkit=parseFloat(m[1]);
// Mobile browser check
if (/ Mobile\//.test(ua)) {
o.mobile = "Apple"; // iPhone or iPod Touch
} else {
m=ua.match(/NokiaN[^\/]*/);
if (m) {
o.mobile = m[0]; // Nokia N-series, ex: NokiaN95
}
}
m=ua.match(/AdobeAIR\/([^\s]*)/);
if (m) {
o.air = m[0]; // Adobe AIR 1.0 or better
}
}
if (!o.webkit) { // not webkit
// @todo check Opera/8.01 (J2ME/MIDP; Opera Mini/2.0.4509/1316; fi; U; ssr)
m=ua.match(/Opera[\s\/]([^\s]*)/);
if (m&&m[1]) {
o.opera=parseFloat(m[1]);
m=ua.match(/Opera Mini[^;]*/);
if (m) {
o.mobile = m[0]; // ex: Opera Mini/2.0.4509/1316
}
} else { // not opera or webkit
m=ua.match(/MSIE\s([^;]*)/);
if (m&&m[1]) {
o.ie=parseFloat(m[1]);
} else { // not opera, webkit, or ie
m=ua.match(/Gecko\/([^\s]*)/);
if (m) {
o.gecko=1; // Gecko detected, look for revision
m=ua.match(/rv:([^\s\)]*)/);
if (m&&m[1]) {
o.gecko=parseFloat(m[1]);
}
}
}
}
}
} catch(e) {
// ignore this if we're not in a browser
}
try {
if (typeof window=="undefined" && typeof loadClass!="undefined") {
o.rhino = true;
}
} catch(e) {}
return o;
}();
/**
* JavaScript runtime library code.
* @name org.antlr.runtime
* @namespace
*/
/**
* JavaScript runtime library tree parser code.
* @name org.antlr.runtime.tree
* @namespace
*/
org.antlr.namespace("org.antlr.runtime.tree");
/**
* Provides the language utilites and extensions used by the library
* @namespace org.antlr.lang
*/
org.antlr.lang = org.antlr.lang || /** @lends org.antlr.lang */ {
/**
* Determines whether or not the provided object is an array.
* Testing typeof/instanceof/constructor of arrays across frame
* boundaries isn't possible in Safari unless you have a reference
* to the other frame to test against its Array prototype. To
* handle this case, we test well-known array properties instead.
* properties.
* @param {any} o The object being testing
* @return {boolean} the result
*/
isArray: function(o) {
if (o) {
var l = org.antlr.lang;
return l.isNumber(o.length) && l.isFunction(o.splice);
}
return false;
},
/**
* Determines whether or not the provided object is a boolean
* @param {any} o The object being testing
* @return {boolean} the result
*/
isBoolean: function(o) {
return typeof o === 'boolean';
},
/**
* Determines whether or not the provided object is a function
* @param {any} o The object being testing
* @return {boolean} the result
*/
isFunction: function(o) {
return typeof o === 'function';
},
/**
* Determines whether or not the provided object is null
* @param {any} o The object being testing
* @return {boolean} the result
*/
isNull: function(o) {
return o === null;
},
/**
* Determines whether or not the provided object is a legal number
* @param {any} o The object being testing
* @return {boolean} the result
*/
isNumber: function(o) {
return typeof o === 'number' && isFinite(o);
},
/**
* Determines whether or not the provided object is of type object
* or function
* @param {any} o The object being testing
* @return {boolean} the result
*/
isObject: function(o) {
return (o && (typeof o === 'object' || org.antlr.lang.isFunction(o))) || false;
},
/**
* Determines whether or not the provided object is a string
* @param {any} o The object being testing
* @return {boolean} the result
*/
isString: function(o) {
return typeof o === 'string';
},
/**
* Determines whether or not the provided object is undefined
* @param {any} o The object being testing
* @return {boolean} the result
*/
isUndefined: function(o) {
return typeof o === 'undefined';
},
/**
* IE will not enumerate native functions in a derived object even if the
* function was overridden. This is a workaround for specific functions
* we care about on the Object prototype.
* @param {Function} r the object to receive the augmentation
* @param {Function} s the object that supplies the properties to augment
* @private
*/
_IEEnumFix: function(r, s) {
if (org.antlr.env.ua.ie) {
var add=["toString", "valueOf"], i;
for (i=0;i<add.length;i=i+1) {
var fname=add[i],f=s[fname];
if (org.antlr.lang.isFunction(f) && f!=Object.prototype[fname]) {
r[fname]=f;
}
}
}
},
/**
* Utility to set up the prototype, constructor and superclass properties to
* support an inheritance strategy that can chain constructors and methods.
* Static members will not be inherited.
*
* @method extend
* @static
* @param {Function} subc the object to modify
* @param {Function} superc the object to inherit
* @param {Object} [overrides] additional properties/methods to add to the
* subclass prototype. These will override the
* matching items obtained from the superclass
* if present.
*/
extend: function(subc, superc, overrides) {
if (!superc||!subc) {
throw new Error("org.antlr.lang.extend failed, please check that " +
"all dependencies are included.");
}
var F = function() {};
F.prototype=superc.prototype;
subc.prototype=new F();
subc.prototype.constructor=subc;
subc.superclass=superc.prototype;
if (superc.prototype.constructor == Object.prototype.constructor) {
superc.prototype.constructor=superc;
}
if (overrides) {
for (var i in overrides) {
subc.prototype[i]=overrides[i];
}
org.antlr.lang._IEEnumFix(subc.prototype, overrides);
}
},
/**
* Applies all properties in the supplier to the receiver if the
* receiver does not have these properties yet. Optionally, one or
* more methods/properties can be specified (as additional
* parameters). This option will overwrite the property if receiver
* has it already. If true is passed as the third parameter, all
* properties will be applied and _will_ overwrite properties in
* the receiver.
*
* @param {Function} r the object to receive the augmentation
* @param {Function} s the object that supplies the properties to augment
* @param {Array.<String>|boolean} [arguments] zero or more properties
* methods to augment the receiver with. If none specified,
* everything in the supplier will be used unless it would
* overwrite an existing property in the receiver. If true
* is specified as the third parameter, all properties will
* be applied and will overwrite an existing property in
* the receiver
*/
augmentObject: function(r, s) {
if (!s||!r) {
throw new Error("Absorb failed, verify dependencies.");
}
var a=arguments, i, p, override=a[2];
if (override && override!==true) { // only absorb the specified properties
for (i=2; i<a.length; i=i+1) {
r[a[i]] = s[a[i]];
}
} else { // take everything, overwriting only if the third parameter is true
for (p in s) {
if (override || !r[p]) {
r[p] = s[p];
}
}
org.antlr.lang._IEEnumFix(r, s);
}
},
/**
* Same as org.antlr.lang.augmentObject, except it only applies prototype properties
* @see org.antlr.lang.augmentObject
* @param {Function} r the object to receive the augmentation
* @param {Function} s the object that supplies the properties to augment
* @param {Array.<String>|boolean} [arguments] zero or more properties methods
* to augment the receiver with. If none specified, everything
* in the supplier will be used unless it would overwrite an existing
* property in the receiver. if true is specified as the third
* parameter, all properties will be applied and will overwrite an
* existing property in the receiver
*/
augmentProto: function(r, s) {
if (!s||!r) {
throw new Error("Augment failed, verify dependencies.");
}
//var a=[].concat(arguments);
var a=[r.prototype,s.prototype];
for (var i=2;i<arguments.length;i=i+1) {
a.push(arguments[i]);
}
org.antlr.lang.augmentObject.apply(this, a);
},
/**
* Returns a new object containing all of the properties of
* all the supplied objects. The properties from later objects
* will overwrite those in earlier objects.
* @param arguments {Object*} the objects to merge
* @return the new merged object
*/
merge: function() {
var o={}, a=arguments;
for (var i=0, l=a.length; i<l; i=i+1) {
org.antlr.lang.augmentObject(o, a[i], true);
}
return o;
},
/**
* A convenience method for detecting a legitimate non-null value.
* Returns false for null/undefined/NaN, true for other values,
* including 0/false/''
* @param o {any} the item to test
* @return {boolean} true if it is not null/undefined/NaN || false
*/
isValue: function(o) {
var l = org.antlr.lang;
return (l.isObject(o) || l.isString(o) || l.isNumber(o) || l.isBoolean(o));
},
/** @namespace org.antlr.lang.array Array convenience methods. */
array: /** @lends org.antlr.lang.array */ {
/**
* Retrieve the last element of an array. Throws an error if a is not
* an array or empty.
* @param a {Array} the array stack to peek in
* @return the last element of the array
*/
peek: function(a) {
if (!org.antlr.lang.isArray(a)) {
throw new Error("org.antlr.lang.array.peek: a is not an array.");
}
var l = a.length;
if (l<=0) {
throw new Error("org.antlr.lang.array.peek: a is empty.");
}
return a[l-1];
}
}
};