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f=c.token(a,b.htmlState);f=="tag"&&a.current()==">"&&b.htmlState.context&&(/^script$/i.test(b.htmlState.context.tagName)?(b.token=h,b.localState=d.startState(c.indent(b.htmlState,"")),b.mode="javascript"):/^style$/i.test(b.htmlState.context.tagName)&&(b.token=i,b.localState=e.startState(c.indent(b.htmlState,"")),b.mode="css"));return f}var c=CodeMirror.getMode(a,{name:"xml",htmlMode:!0}),d=CodeMirror.getMode(a,"javascript"),e=CodeMirror.getMode(a,"css");return{startState:function(){var a=c.startState();return{token:f,localState:null,mode:"html",htmlState:a}},copyState:function(a){if(a.localState)var b=CodeMirror.copyState(a.token==i?e:d,a.localState);return{token:a.token,localState:b,mode:a.mode,htmlState:CodeMirror.copyState(c,a.htmlState)}},token:function(a,b){return b.token(a,b)},indent:function(a,b){return a.token==f||/^\s*<\//.test(b)?c.indent(a.htmlState,b):a.token==h?d.indent(a.localState,b):e.indent(a.localState,b)},electricChars:"/{}:"}}),CodeMirror.defineMIME("text/html","htmlmixed")
\ No newline at end of file
diff --git a/dist/docs/resources/js/paper.js b/dist/docs/resources/js/paper.js
deleted file mode 100644
index e69de29b..00000000
diff --git a/dist/docs/resources/js/reference.js b/dist/docs/resources/js/reference.js
deleted file mode 100644
index b39ee690..00000000
--- a/dist/docs/resources/js/reference.js
+++ /dev/null
@@ -1,258 +0,0 @@
-ContentEnd = HtmlElement.extend({
- _class: 'content-end',
-
- initialize: function() {
- var anchor = $$('a[name]').getLast(),
- that = this;
- if (anchor) {
- function resize() {
- var bottom = $window.getScrollSize().height
- - anchor.getOffset().y - $window.getSize().height;
- that.setHeight(that.getHeight() - bottom);
- }
- $window.addEvents({
- load: resize,
- resize: resize
- });
- // Not sure why these are required twice, in addition to load()..
- resize();
- resize();
- }
- }
-});
-
-function createCodeMirror(place, options, source) {
- return new CodeMirror(place, Hash.create({}, {
- lineNumbers: true,
- matchBrackets: true,
- indentUnit: 4,
- tabMode: 'shift',
- value: source.getText().replace(/\t/gi, ' ').match(
- // Remove first & last empty line
- /^\s*?[\n\r]?([\u0000-\uffff]*?)[\n\r]?\s*?$/)[1]
- }, options));
-}
-
-Code = HtmlElement.extend({
- _class: 'code',
-
- initialize: function() {
- // Only format this element if it is visible, otherwise wait until
- // it is made visible and then call initialize() manually.
- if (this.initialized || this.getBounds().height == 0)
- return;
- var that = this;
- var start = this.getProperty('start');
- var highlight = this.getProperty('highlight');
- var editor = createCodeMirror(function(el) {
- that.replaceWith(el);
- }, {
- lineNumbers: !this.hasParent('.resource-text'),
- firstLineNumber: (start || 1).toInt(),
- readOnly: true
- }, this);
- if (highlight) {
- var highlights = highlight.split(',');
- for (var i = 0, l = highlights.length; i < l; i++) {
- var highlight = highlights[i].split('-');
- var hlStart = highlight[0].toInt() - 1;
- var hlEnd = highlight.length == 2
- ? highlight[1].toInt() - 1 : hlStart;
- if (start) {
- hlStart -= start - 1;
- hlEnd -= start - 1;
- }
- for (var j = hlStart; j <= hlEnd; j++) {
- editor.setLineClass(j, 'highlight');
- }
- }
- }
- this.initialized = true;
- }
-});
-
-PaperScript = HtmlElement.extend({
- _class: 'paperscript',
-
- initialize: function() {
- // Only format this element if it is visible, otherwise wait until
- // it is made visible and then call initialize() manually.
- if (this.initialized || this.getBounds().height == 0)
- return;
- var script = $('script', this),
- button = $('.button', this);
- if (!script || !button)
- return;
- var source = button.injectAfter('div', {
- className: 'source hidden'
- });
- var that = this,
- canvas = $('canvas', this),
- hasResize = canvas.getProperty('resize'),
- showSplit = this.hasClass('split'),
- sourceFirst = this.hasClass('source'),
- width, height,
- editor = null,
- hasBorders = true;
-
- function showSource(show) {
- source.modifyClass('hidden', !show);
- button.setText(show ? 'Run' : 'Source');
- if (show && !editor) {
- editor = createCodeMirror(source.$, {
- /*
- onKeyEvent: function(editor, event) {
- event = new DomEvent(event);
- if (event.type == 'keydown') {
- var pos = editor.getCursor();
- pos.ch += 4;
- editor.setCursor(pos);
- event.stop();
- }
- },
- */
- }, script);
- }
- }
-
- function runScript() {
- var scope = paper.PaperScope.get(script.$);
- if (scope) {
- // Update script to edited version
- var code = editor.getValue();
- script.setText(code);
- // Keep a reference to the used canvas, since we're going to
- // fully clear the scope and initialize again with this canvas.
- var canvas = scope.view.canvas;
- // Clear scope first, then evaluate a new script.
- scope.clear();
- scope.initialize(canvas);
- scope.evaluate(code);
- }
- }
-
- function resize() {
- if (!canvas.hasClass('hidden')) {
- width = canvas.getWidth();
- height = canvas.getHeight();
- } else if (hasResize) {
- // Can't get correct dimensions from hidden canvas,
- // so calculate again.
- var size = $window.getScrollSize();
- var offset = source.getOffset();
- width = size.width - offset.x;
- height = size.height - offset.y;
- }
- // Resize the main element as well, so that the float:right button
- // is always positioned correctly.
- that.set({ width: width, height: height });
- source.set({
- width: width - (hasBorders ? 2 : 1),
- height: height - (hasBorders ? 2 : 0)
- });
- }
-
- function toggleView() {
- var show = source.hasClass('hidden');
- resize();
- canvas.modifyClass('hidden', show);
- showSource(show);
- if (!show)
- runScript();
- // Remove padding
- button.setStyle('right',
- $('.CodeMirror', source).getScrollSize().height > height
- ? 24 : 8);
- }
-
- if (hasResize) {
- // Delay the installing of the resize event, so paper.js installs
- // its own before us.
- (function() {
- $window.addEvents({
- resize: resize
- });
- }).delay(1);
- hasBorders = false;
- source.setStyles({
- borderWidth: '0 0 0 1px'
- });
- }
-
- if (showSplit) {
- showSource(true);
- } else if (sourceFirst) {
- toggleView();
- }
-
- button.addEvents({
- click: function(event) {
- if (showSplit) {
- runScript();
- } else {
- toggleView();
- }
- event.stop();
- },
-
- mousedown: function(event) {
- event.stop();
- }
- });
- this.initialized = true;
- }
-});
-
-var lastMemberId = null;
-function toggleMember(id, scrollTo, dontScroll) {
- var link = $('#' + id + '-link');
- if (!link)
- return true;
- var desc = $('#' + id + '-description');
- var v = !link.hasClass('hidden');
- // Retrieve y-offset before any changes, so we can correct scrolling after
- var offset = (v ? link : desc).getOffset().y;
- if (lastMemberId && lastMemberId != id) {
- var prevId = lastMemberId;
- lastMemberId = null;
- toggleMember(prevId, false, true);
- }
- lastMemberId = v && id;
- link.modifyClass('hidden', v);
- desc.modifyClass('hidden', !v);
- if (!dontScroll) {
- // Correct scrolling relatively to where we are, by checking the amount
- // the element has shifted due to the above toggleMember call, and
- // correcting by 11px offset, caused by 1px border and 10px padding.
- var scroll = $window.getScrollOffset();
- $window.setScrollOffset(scroll.x, scroll.y
- + (v ? desc : link).getOffset().y - offset + 11 * (v ? 1 : -1));
- }
- if (!desc.editor && v) {
- desc.editor = $$('pre.code, .paperscript', desc).each(function(code) {
- code.initialize();
- });
- }
- if (scrollTo)
- scrollToMember(id);
- return false;
-}
-
-function scrollToElement(id) {
- var e = $('#' + id + '-member');
- if (e) {
- if (e.hasClass('member'))
- toggleMember(id);
- var offs = e.getOffset();
- $window.setScrollOffset(offs);
- } else {
- window.location.hash = id;
- }
-}
-
-$document.addEvent('domready', function() {
- var h = unescape(window.location.hash);
- if (h) scrollToElement(h.substring(1));
- if (window.paper)
- paper.load();
-});
diff --git a/dist/paper.js b/dist/paper.js
deleted file mode 100644
index d2dbb9ac..00000000
--- a/dist/paper.js
+++ /dev/null
@@ -1,3 +0,0 @@
-// Paper.js loader for development, as produced by the build/load.sh script
-document.write('');
-document.write('');
\ No newline at end of file
diff --git a/lib/bootstrap.js b/lib/bootstrap.js
deleted file mode 100644
index aaed4e9f..00000000
--- a/lib/bootstrap.js
+++ /dev/null
@@ -1,411 +0,0 @@
-/**
- * Bootstrap JavaScript Library
- * (c) 2006 - 2011 Juerg Lehni, http://lehni.org/
- *
- * Bootstrap is released under the MIT license
- * http://bootstrapjs.org/
- *
- * Inspirations:
- * http://dean.edwards.name/weblog/2006/03/base/
- * http://dev.helma.org/Wiki/JavaScript+Inheritance+Sugar/
- * http://prototypejs.org/
- */
-
-var Base = new function() { // Bootstrap scope
- // Fix __proto__ for browsers where it is not implemented (IE and Opera).
- var fix = !this.__proto__,
- hidden = /^(statics|generics|preserve|enumerable|prototype|__proto__|toString|valueOf)$/,
- proto = Object.prototype,
- /**
- * Private function that checks if an object contains a given property.
- * Naming it 'has' causes problems on Opera when defining
- * Object.prototype.has, as the local version then seems to be overriden
- * by that. Giving it a idfferent name fixes it.
- */
- has = fix
- ? function(name) {
- return name !== '__proto__' && this.hasOwnProperty(name);
- }
- : proto.hasOwnProperty,
- toString = proto.toString,
- proto = Array.prototype,
- isArray = Array.isArray = Array.isArray || function(obj) {
- return toString.call(obj) === '[object Array]';
- },
- slice = proto.slice,
- forEach = proto.forEach || function(iter, bind) {
- for (var i = 0, l = this.length; i < l; i++)
- iter.call(bind, this[i], i, this);
- },
- forIn = function(iter, bind) {
- // Do not use Object.keys for iteration as iterators might modify
- // the object we're iterating over, making the hasOwnProperty still
- // necessary.
- for (var i in this)
- if (this.hasOwnProperty(i))
- iter.call(bind, this[i], i, this);
- },
- _define = Object.defineProperty,
- _describe = Object.getOwnPropertyDescriptor;
-
- // Support a mixed environment of some ECMAScript 5 features present,
- // along with __defineGetter/Setter__ functions, as found in browsers today.
- function define(obj, name, desc) {
- // Unfortunately Safari seems to ignore configurable: true and
- // does not override existing properties, so we need to delete
- // first:
- if (_define) {
- try {
- delete obj[name];
- return _define(obj, name, desc);
- } catch (e) {}
- }
- if ((desc.get || desc.set) && obj.__defineGetter__) {
- desc.get && obj.__defineGetter__(name, desc.get);
- desc.set && obj.__defineSetter__(name, desc.set);
- } else {
- obj[name] = desc.value;
- }
- return obj;
- }
-
- function describe(obj, name) {
- if (_describe) {
- try {
- return _describe(obj, name);
- } catch (e) {}
- }
- var get = obj.__lookupGetter__ && obj.__lookupGetter__(name);
- return get
- ? { get: get, set: obj.__lookupSetter__(name), enumerable: true,
- configurable: true }
- : has.call(obj, name)
- ? { value: obj[name], enumerable: true, configurable: true,
- writable: true }
- : null;
- }
-
- /**
- * Private function that injects functions from src into dest, overriding
- * (and inherinting from) base.
- */
- function inject(dest, src, enumerable, base, preserve, generics) {
- var beans, bean;
-
- /**
- * Private function that injects one field with given name and checks if
- * the field is a function that needs to be wrapped for calls of base().
- * This is only needed if the function in base is different from the one
- * in src, and if the one in src is actually calling base through base.
- * The string of the function is parsed for this.base to detect calls.
- */
- function field(name, val, dontCheck, generics) {
- // This does even work for prop: 0, as it will just be looked up
- // again through describe.
- var val = val || (val = describe(src, name))
- && (val.get ? val : val.value),
- func = typeof val === 'function',
- res = val,
- // Only lookup previous value if we preserve or define a
- // function that might need it for this.base(). If we're
- // defining a getter, don't lookup previous value, but look if
- // the property exists (name in dest) and store result in prev
- prev = preserve || func
- ? (val && val.get ? name in dest : dest[name]) : null;
- // Make generics first, as we might jump out bellow in the
- // val !== (src.__proto__ || Object.prototype)[name] check,
- // e.g. when explicitely reinjecting Array.prototype methods
- // to produce generics of them.
- if (generics && func && (!preserve || !generics[name])) {
- generics[name] = function(bind) {
- // Do not call Array.slice generic here, as on Safari,
- // this seems to confuse scopes (calling another
- // generic from generic-producing code).
- return bind && dest[name].apply(bind,
- slice.call(arguments, 1));
- }
- }
- if ((dontCheck || val !== undefined && has.call(src, name))
- && (!preserve || !prev)) {
- if (func) {
- if (prev && /\bthis\.base\b/.test(val)) {
- var fromBase = base && base[name] == prev;
- res = function() {
- // Look up the base function each time if we can,
- // to reflect changes to the base class after
- // inheritance.
- var tmp = describe(this, 'base');
- define(this, 'base', { value: fromBase
- ? base[name] : prev, configurable: true });
- try {
- return val.apply(this, arguments);
- } finally {
- tmp ? define(this, 'base', tmp)
- : delete this.base;
- }
- };
- // Make wrapping closure pretend to be the original
- // function on inspection
- res.toString = function() {
- return val.toString();
- }
- res.valueOf = function() {
- return val.valueOf();
- }
- }
- // Produce bean properties if getters are specified. This
- // does not produce properties for setter-only properties.
- // Just collect beans for now, and look them up in dest at
- // the end of fields injection. This ensures this.base()
- // works in beans too, and inherits setters for redefined
- // getters in subclasses. Only add getter beans if they do
- // not expect arguments. Functions that should function both
- // with optional arguments and as beans should not declare
- // the parameters and use the arguments array internally
- // instead.
- if (beans && val.length == 0
- && (bean = name.match(/^(get|is)(([A-Z])(.*))$/)))
- beans.push([ bean[3].toLowerCase() + bean[4], bean[2] ]);
- }
- // No need to look up getter if this is a function already.
- if (!res || func || !res.get)
- res = { value: res, writable: true };
- // Only set/change configurable and enumerable if this field is
- // configurable
- if ((describe(dest, name)
- || { configurable: true }).configurable) {
- res.configurable = true;
- res.enumerable = enumerable;
- }
- define(dest, name, res);
- }
- }
- // Iterate through all definitions in src now and call field() for each.
- if (src) {
- beans = [];
- for (var name in src)
- if (has.call(src, name) && !hidden.test(name))
- field(name, null, true, generics);
- // IE (and some other browsers?) never enumerate these, even if
- // they are simply set on an object. Force their creation. Do not
- // create generics for these, and check them for not being defined
- // (by passing undefined for dontCheck).
- field('toString');
- field('valueOf');
- // Now finally define beans as well. Look up methods on dest, for
- // support of this.base() (See above).
- for (var i = 0, l = beans && beans.length; i < l; i++)
- try {
- var bean = beans[i], part = bean[1];
- field(bean[0], {
- get: dest['get' + part] || dest['is' + part],
- set: dest['set' + part]
- }, true);
- } catch (e) {}
- }
- return dest;
- }
-
- /**
- * Private function that creates a constructor to extend the given object.
- * When this constructor is called through new, a new object is craeted
- * that inherits all from obj.
- */
- function extend(obj) {
- // Create the constructor for the new prototype that calls initialize
- // if it is defined.
- var ctor = function(dont) {
- // Fix __proto__
- if (fix) define(this, '__proto__', { value: obj });
- // Call the constructor function, if defined and we are not
- // inheriting, in which case ctor.dont would be set, see bellow.
- if (this.initialize && dont !== ctor.dont)
- return this.initialize.apply(this, arguments);
- }
- ctor.prototype = obj;
- // Add a toString function that delegates to initialize if possible
- ctor.toString = function() {
- return (this.prototype.initialize || function() {}).toString();
- }
- return ctor;
- }
-
- /**
- * Converts the argument to an iterator function. If none is specified, the
- * identity function is returned.
- * This supports normal functions, which are returned unmodified, and values
- * to compare to. Wherever this function is used in the Enumerable
- * functions, a value, a Function or null may be passed.
- */
- function iterator(iter) {
- return !iter
- ? function(val) { return val }
- : typeof iter !== 'function'
- ? function(val) { return val == iter }
- : iter;
- }
-
- function each(obj, iter, bind, asArray) {
- try {
- if (obj)
- (asArray || asArray === undefined && isArray(obj)
- ? forEach : forIn).call(obj, iterator(iter),
- bind = bind || obj);
- } catch (e) {
- if (e !== Base.stop) throw e;
- }
- return bind;
- }
-
- function clone(obj) {
- return each(obj, function(val, i) {
- this[i] = val;
- }, new obj.constructor());
- }
-
- // Inject into new ctor object that's passed to inject(), and then returned
- return inject(function() {}, {
- inject: function(src/*, ... */) {
- if (src) {
- var proto = this.prototype,
- base = proto.__proto__ && proto.__proto__.constructor,
- // Allow the whole scope to just define statics by defining
- // statics: true.
- statics = src.statics == true ? src : src.statics;
- if (statics != src)
- inject(proto, src, src.enumerable, base && base.prototype,
- src.preserve, src.generics && this);
- // Define new static fields as enumerable, and inherit from
- // base. enumerable is necessary so they can be copied over from
- // base, and it does not harm to have enumerable properties in
- // the constructor. Use the preserve setting in src.preserve for
- // statics too, not their own.
- inject(this, statics, true, base, src.preserve);
- }
- // If there are more than one argument, loop through them and call
- // inject again. Do not simple inline the above code in one loop,
- // since each of the passed objects might override this.inject.
- for (var i = 1, l = arguments.length; i < l; i++)
- this.inject(arguments[i]);
- return this;
- },
-
- extend: function(src/* , ... */) {
- // The new prototype extends the constructor on which extend is
- // called. Fix constructor.
- // TODO: Consider using Object.create instead of using this.dont if
- // available?
- var proto = new this(this.dont),
- ctor = extend(proto);
- define(proto, 'constructor',
- { value: ctor, writable: true, configurable: true });
- // Define an object to be passed as the first parameter in
- // constructors when initialize should not be called.
- ctor.dont = {};
- // Copy over static fields, as prototype-like inheritance
- // is not possible for static fields. Mark them as enumerable
- // so they can be copied over again.
- inject(ctor, this, true);
- // Inject all the definitions in src. Use the new inject instead of
- // the one in ctor, in case it was overriden. this is needed when
- // overriding the static .inject(). But only inject if there's
- // something to actually inject.
- return arguments.length ? this.inject.apply(ctor, arguments) : ctor;
- }
- // Pass true for enumerable, so inject() and extend() can be passed on
- // to subclasses of Base through Base.inject() / extend().
- }, true).inject({
- /**
- * Returns true if the object contains a property with the given name,
- * false otherwise.
- * Just like in .each, objects only contained in the prototype(s) are
- * filtered.
- */
- has: has,
- each: each,
-
- /**
- * Injects the fields from the given object, adding this.base()
- * functionality
- */
- inject: function(/* src, ... */) {
- for (var i = 0, l = arguments.length; i < l; i++)
- inject(this, arguments[i]);
- return this;
- },
-
- /**
- * Returns a new object that inherits all properties from "this",
- * through proper JS inheritance, not copying.
- * Optionally, src and hide parameters can be passed to fill in the
- * newly created object just like in inject(), to copy the behavior
- * of Function.prototype.extend.
- */
- extend: function(/* src, ... */) {
- // Notice the "new" here: the private extend returns a constructor
- // as it's used for Function.prototype.extend as well. But when
- // extending objects, we want to return a new object that inherits
- // from "this". In that case, the constructor is never used again,
- // its just created to create a new object with the proper
- // inheritance set and is garbage collected right after.
- var res = new (extend(this));
- return res.inject.apply(res, arguments);
- },
-
- each: function(iter, bind) {
- return each(this, iter, bind);
- },
-
- /**
- * Creates a new object of the same type and copies over all
- * name / value pairs from this object.
- */
- clone: function() {
- return clone(this);
- },
-
- statics: {
- // Expose some local privates as Base generics.
- each: each,
- clone: clone,
- define: define,
- describe: describe,
- iterator: iterator,
-
- has: function(obj, name) {
- return has.call(obj, name);
- },
-
- type: function(obj) {
- return (obj || obj === 0) && (obj._type || typeof obj) || null;
- },
-
- check: function(obj) {
- return !!(obj || obj === 0);
- },
-
- /**
- * Returns the first argument that is defined.
- * Null is counted as defined too, since !== undefined is used for
- * comparisons. In this it differs from Mootools!
- */
- pick: function() {
- for (var i = 0, l = arguments.length; i < l; i++)
- if (arguments[i] !== undefined)
- return arguments[i];
- return null;
- },
-
- /**
- * A special constant, to be thrown by closures passed to each()
- *
- * $continue / Base.next is not implemented, as the same
- * functionality can achieved by using return in the closure.
- * In prototype, the implementation of $continue also leads to a
- * huge speed decrease, as the closure is wrapped in another closure
- * that does nothing else than handling $continue.
- */
- stop: {}
- }
- });
-}
diff --git a/lib/parse-js-min.js b/lib/parse-js-min.js
deleted file mode 100644
index c0bdddac..00000000
--- a/lib/parse-js-min.js
+++ /dev/null
@@ -1,14 +0,0 @@
-/**
- * A JavaScript tokenizer / parser / generator, originally written in Lisp.
- * Copyright (c) Marijn Haverbeke
- * http://marijn.haverbeke.nl/parse-js/
- *
- * Ported by to JavaScript by Mihai Bazon
- * Copyright (c) 2010, Mihai Bazon
- * http://mihai.bazon.net/blog/
- *
- * Modifications and adaptions to browser (c) 2011, Juerg Lehni
- * http://lehni.org/
- *
- * Distributed under the BSD license.
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\ No newline at end of file
diff --git a/lib/parse-js-unicode.js b/lib/parse-js-unicode.js
deleted file mode 100644
index 6baa67f3..00000000
--- a/lib/parse-js-unicode.js
+++ /dev/null
@@ -1,1997 +0,0 @@
-/**
- * A JavaScript tokenizer / parser / generator, originally written in Lisp.
- * Copyright (c) Marijn Haverbeke
- * http://marijn.haverbeke.nl/parse-js/
- *
- * Ported by to JavaScript by Mihai Bazon
- * Copyright (c) 2010, Mihai Bazon
- * http://mihai.bazon.net/blog/
- *
- * Modifications and adaptions to browser (c) 2011, Juerg Lehni
- * http://lehni.org/
- *
- * Distributed under the BSD license.
- */
-
-var parse_js = new function() {
-
-/* -----[ Tokenizer (constants) ]----- */
-
-var KEYWORDS = array_to_hash([
- "break",
- "case",
- "catch",
- "const",
- "continue",
- "default",
- "delete",
- "do",
- "else",
- "finally",
- "for",
- "function",
- "if",
- "in",
- "instanceof",
- "new",
- "return",
- "switch",
- "throw",
- "try",
- "typeof",
- "var",
- "void",
- "while",
- "with"
-]);
-
-var RESERVED_WORDS = array_to_hash([
- "abstract",
- "boolean",
- "byte",
- "char",
- "class",
- "debugger",
- "double",
- "enum",
- "export",
- "extends",
- "final",
- "float",
- "goto",
- "implements",
- "import",
- "int",
- "interface",
- "long",
- "native",
- "package",
- "private",
- "protected",
- "public",
- "short",
- "static",
- "super",
- "synchronized",
- "throws",
- "transient",
- "volatile"
-]);
-
-var KEYWORDS_BEFORE_EXPRESSION = array_to_hash([
- "return",
- "new",
- "delete",
- "throw",
- "else",
- "case"
-]);
-
-var KEYWORDS_ATOM = array_to_hash([
- "false",
- "null",
- "true",
- "undefined"
-]);
-
-var OPERATOR_CHARS = array_to_hash(characters("+-*&%=<>!?|~^"));
-
-var RE_HEX_NUMBER = /^0x[0-9a-f]+$/i;
-var RE_OCT_NUMBER = /^0[0-7]+$/;
-var RE_DEC_NUMBER = /^\d*\.?\d*(?:e[+-]?\d*(?:\d\.?|\.?\d)\d*)?$/i;
-
-var OPERATORS = array_to_hash([
- "in",
- "instanceof",
- "typeof",
- "new",
- "void",
- "delete",
- "++",
- "--",
- "+",
- "-",
- "!",
- "~",
- "&",
- "|",
- "^",
- "*",
- "/",
- "%",
- ">>",
- "<<",
- ">>>",
- "<",
- ">",
- "<=",
- ">=",
- "==",
- "===",
- "!=",
- "!==",
- "?",
- "=",
- "+=",
- "-=",
- "/=",
- "*=",
- "%=",
- ">>=",
- "<<=",
- ">>>=",
- "|=",
- "^=",
- "&=",
- "&&",
- "||"
-]);
-
-var WHITESPACE_CHARS = array_to_hash(characters(" \u00a0\n\r\t\f\v\u200b"));
-
-var PUNC_BEFORE_EXPRESSION = array_to_hash(characters("[{}(,.;:"));
-
-var PUNC_CHARS = array_to_hash(characters("[]{}(),;:"));
-
-var REGEXP_MODIFIERS = array_to_hash(characters("gmsiy"));
-
-/* -----[ Tokenizer ]----- */
-
-// regexps adapted from http://xregexp.com/plugins/#unicode
-var UNICODE = {
- letter: new RegExp("[\\u0041-\\u005A\\u0061-\\u007A\\u00AA\\u00B5\\u00BA\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02C1\\u02C6-\\u02D1\\u02E0-\\u02E4\\u02EC\\u02EE\\u0370-\\u0374\\u0376\\u0377\\u037A-\\u037D\\u0386\\u0388-\\u038A\\u038C\\u038E-\\u03A1\\u03A3-\\u03F5\\u03F7-\\u0481\\u048A-\\u0523\\u0531-\\u0556\\u0559\\u0561-\\u0587\\u05D0-\\u05EA\\u05F0-\\u05F2\\u0621-\\u064A\\u066E\\u066F\\u0671-\\u06D3\\u06D5\\u06E5\\u06E6\\u06EE\\u06EF\\u06FA-\\u06FC\\u06FF\\u0710\\u0712-\\u072F\\u074D-\\u07A5\\u07B1\\u07CA-\\u07EA\\u07F4\\u07F5\\u07FA\\u0904-\\u0939\\u093D\\u0950\\u0958-\\u0961\\u0971\\u0972\\u097B-\\u097F\\u0985-\\u098C\\u098F\\u0990\\u0993-\\u09A8\\u09AA-\\u09B0\\u09B2\\u09B6-\\u09B9\\u09BD\\u09CE\\u09DC\\u09DD\\u09DF-\\u09E1\\u09F0\\u09F1\\u0A05-\\u0A0A\\u0A0F\\u0A10\\u0A13-\\u0A28\\u0A2A-\\u0A30\\u0A32\\u0A33\\u0A35\\u0A36\\u0A38\\u0A39\\u0A59-\\u0A5C\\u0A5E\\u0A72-\\u0A74\\u0A85-\\u0A8D\\u0A8F-\\u0A91\\u0A93-\\u0AA8\\u0AAA-\\u0AB0\\u0AB2\\u0AB3\\u0AB5-\\u0AB9\\u0ABD\\u0AD0\\u0AE0\\u0AE1\\u0B05-\\u0B0C\\u0B0F\\u0B10\\u0B13-\\u0B28\\u0B2A-\\u0B30\\u0B32\\u0B33\\u0B35-\\u0B39\\u0B3D\\u0B5C\\u0B5D\\u0B5F-\\u0B61\\u0B71\\u0B83\\u0B85-\\u0B8A\\u0B8E-\\u0B90\\u0B92-\\u0B95\\u0B99\\u0B9A\\u0B9C\\u0B9E\\u0B9F\\u0BA3\\u0BA4\\u0BA8-\\u0BAA\\u0BAE-\\u0BB9\\u0BD0\\u0C05-\\u0C0C\\u0C0E-\\u0C10\\u0C12-\\u0C28\\u0C2A-\\u0C33\\u0C35-\\u0C39\\u0C3D\\u0C58\\u0C59\\u0C60\\u0C61\\u0C85-\\u0C8C\\u0C8E-\\u0C90\\u0C92-\\u0CA8\\u0CAA-\\u0CB3\\u0CB5-\\u0CB9\\u0CBD\\u0CDE\\u0CE0\\u0CE1\\u0D05-\\u0D0C\\u0D0E-\\u0D10\\u0D12-\\u0D28\\u0D2A-\\u0D39\\u0D3D\\u0D60\\u0D61\\u0D7A-\\u0D7F\\u0D85-\\u0D96\\u0D9A-\\u0DB1\\u0DB3-\\u0DBB\\u0DBD\\u0DC0-\\u0DC6\\u0E01-\\u0E30\\u0E32\\u0E33\\u0E40-\\u0E46\\u0E81\\u0E82\\u0E84\\u0E87\\u0E88\\u0E8A\\u0E8D\\u0E94-\\u0E97\\u0E99-\\u0E9F\\u0EA1-\\u0EA3\\u0EA5\\u0EA7\\u0EAA\\u0EAB\\u0EAD-\\u0EB0\\u0EB2\\u0EB3\\u0EBD\\u0EC0-\\u0EC4\\u0EC6\\u0EDC\\u0EDD\\u0F00\\u0F40-\\u0F47\\u0F49-\\u0F6C\\u0F88-\\u0F8B\\u1000-\\u102A\\u103F\\u1050-\\u1055\\u105A-\\u105D\\u1061\\u1065\\u1066\\u106E-\\u1070\\u1075-\\u1081\\u108E\\u10A0-\\u10C5\\u10D0-\\u10FA\\u10FC\\u1100-\\u1159\\u115F-\\u11A2\\u11A8-\\u11F9\\u1200-\\u1248\\u124A-\\u124D\\u1250-\\u1256\\u1258\\u125A-\\u125D\\u1260-\\u1288\\u128A-\\u128D\\u1290-\\u12B0\\u12B2-\\u12B5\\u12B8-\\u12BE\\u12C0\\u12C2-\\u12C5\\u12C8-\\u12D6\\u12D8-\\u1310\\u1312-\\u1315\\u1318-\\u135A\\u1380-\\u138F\\u13A0-\\u13F4\\u1401-\\u166C\\u166F-\\u1676\\u1681-\\u169A\\u16A0-\\u16EA\\u1700-\\u170C\\u170E-\\u1711\\u1720-\\u1731\\u1740-\\u1751\\u1760-\\u176C\\u176E-\\u1770\\u1780-\\u17B3\\u17D7\\u17DC\\u1820-\\u1877\\u1880-\\u18A8\\u18AA\\u1900-\\u191C\\u1950-\\u196D\\u1970-\\u1974\\u1980-\\u19A9\\u19C1-\\u19C7\\u1A00-\\u1A16\\u1B05-\\u1B33\\u1B45-\\u1B4B\\u1B83-\\u1BA0\\u1BAE\\u1BAF\\u1C00-\\u1C23\\u1C4D-\\u1C4F\\u1C5A-\\u1C7D\\u1D00-\\u1DBF\\u1E00-\\u1F15\\u1F18-\\u1F1D\\u1F20-\\u1F45\\u1F48-\\u1F4D\\u1F50-\\u1F57\\u1F59\\u1F5B\\u1F5D\\u1F5F-\\u1F7D\\u1F80-\\u1FB4\\u1FB6-\\u1FBC\\u1FBE\\u1FC2-\\u1FC4\\u1FC6-\\u1FCC\\u1FD0-\\u1FD3\\u1FD6-\\u1FDB\\u1FE0-\\u1FEC\\u1FF2-\\u1FF4\\u1FF6-\\u1FFC\\u2071\\u207F\\u2090-\\u2094\\u2102\\u2107\\u210A-\\u2113\\u2115\\u2119-\\u211D\\u2124\\u2126\\u2128\\u212A-\\u212D\\u212F-\\u2139\\u213C-\\u213F\\u2145-\\u2149\\u214E\\u2183\\u2184\\u2C00-\\u2C2E\\u2C30-\\u2C5E\\u2C60-\\u2C6F\\u2C71-\\u2C7D\\u2C80-\\u2CE4\\u2D00-\\u2D25\\u2D30-\\u2D65\\u2D6F\\u2D80-\\u2D96\\u2DA0-\\u2DA6\\u2DA8-\\u2DAE\\u2DB0-\\u2DB6\\u2DB8-\\u2DBE\\u2DC0-\\u2DC6\\u2DC8-\\u2DCE\\u2DD0-\\u2DD6\\u2DD8-\\u2DDE\\u2E2F\\u3005\\u3006\\u3031-\\u3035\\u303B\\u303C\\u3041-\\u3096\\u309D-\\u309F\\u30A1-\\u30FA\\u30FC-\\u30FF\\u3105-\\u312D\\u3131-\\u318E\\u31A0-\\u31B7\\u31F0-\\u31FF\\u3400\\u4DB5\\u4E00\\u9FC3\\uA000-\\uA48C\\uA500-\\uA60C\\uA610-\\uA61F\\uA62A\\uA62B\\uA640-\\uA65F\\uA662-\\uA66E\\uA67F-\\uA697\\uA717-\\uA71F\\uA722-\\uA788\\uA78B\\uA78C\\uA7FB-\\uA801\\uA803-\\uA805\\uA807-\\uA80A\\uA80C-\\uA822\\uA840-\\uA873\\uA882-\\uA8B3\\uA90A-\\uA925\\uA930-\\uA946\\uAA00-\\uAA28\\uAA40-\\uAA42\\uAA44-\\uAA4B\\uAC00\\uD7A3\\uF900-\\uFA2D\\uFA30-\\uFA6A\\uFA70-\\uFAD9\\uFB00-\\uFB06\\uFB13-\\uFB17\\uFB1D\\uFB1F-\\uFB28\\uFB2A-\\uFB36\\uFB38-\\uFB3C\\uFB3E\\uFB40\\uFB41\\uFB43\\uFB44\\uFB46-\\uFBB1\\uFBD3-\\uFD3D\\uFD50-\\uFD8F\\uFD92-\\uFDC7\\uFDF0-\\uFDFB\\uFE70-\\uFE74\\uFE76-\\uFEFC\\uFF21-\\uFF3A\\uFF41-\\uFF5A\\uFF66-\\uFFBE\\uFFC2-\\uFFC7\\uFFCA-\\uFFCF\\uFFD2-\\uFFD7\\uFFDA-\\uFFDC]"),
- non_spacing_mark: new RegExp("[\\u0300-\\u036F\\u0483-\\u0487\\u0591-\\u05BD\\u05BF\\u05C1\\u05C2\\u05C4\\u05C5\\u05C7\\u0610-\\u061A\\u064B-\\u065E\\u0670\\u06D6-\\u06DC\\u06DF-\\u06E4\\u06E7\\u06E8\\u06EA-\\u06ED\\u0711\\u0730-\\u074A\\u07A6-\\u07B0\\u07EB-\\u07F3\\u0816-\\u0819\\u081B-\\u0823\\u0825-\\u0827\\u0829-\\u082D\\u0900-\\u0902\\u093C\\u0941-\\u0948\\u094D\\u0951-\\u0955\\u0962\\u0963\\u0981\\u09BC\\u09C1-\\u09C4\\u09CD\\u09E2\\u09E3\\u0A01\\u0A02\\u0A3C\\u0A41\\u0A42\\u0A47\\u0A48\\u0A4B-\\u0A4D\\u0A51\\u0A70\\u0A71\\u0A75\\u0A81\\u0A82\\u0ABC\\u0AC1-\\u0AC5\\u0AC7\\u0AC8\\u0ACD\\u0AE2\\u0AE3\\u0B01\\u0B3C\\u0B3F\\u0B41-\\u0B44\\u0B4D\\u0B56\\u0B62\\u0B63\\u0B82\\u0BC0\\u0BCD\\u0C3E-\\u0C40\\u0C46-\\u0C48\\u0C4A-\\u0C4D\\u0C55\\u0C56\\u0C62\\u0C63\\u0CBC\\u0CBF\\u0CC6\\u0CCC\\u0CCD\\u0CE2\\u0CE3\\u0D41-\\u0D44\\u0D4D\\u0D62\\u0D63\\u0DCA\\u0DD2-\\u0DD4\\u0DD6\\u0E31\\u0E34-\\u0E3A\\u0E47-\\u0E4E\\u0EB1\\u0EB4-\\u0EB9\\u0EBB\\u0EBC\\u0EC8-\\u0ECD\\u0F18\\u0F19\\u0F35\\u0F37\\u0F39\\u0F71-\\u0F7E\\u0F80-\\u0F84\\u0F86\\u0F87\\u0F90-\\u0F97\\u0F99-\\u0FBC\\u0FC6\\u102D-\\u1030\\u1032-\\u1037\\u1039\\u103A\\u103D\\u103E\\u1058\\u1059\\u105E-\\u1060\\u1071-\\u1074\\u1082\\u1085\\u1086\\u108D\\u109D\\u135F\\u1712-\\u1714\\u1732-\\u1734\\u1752\\u1753\\u1772\\u1773\\u17B7-\\u17BD\\u17C6\\u17C9-\\u17D3\\u17DD\\u180B-\\u180D\\u18A9\\u1920-\\u1922\\u1927\\u1928\\u1932\\u1939-\\u193B\\u1A17\\u1A18\\u1A56\\u1A58-\\u1A5E\\u1A60\\u1A62\\u1A65-\\u1A6C\\u1A73-\\u1A7C\\u1A7F\\u1B00-\\u1B03\\u1B34\\u1B36-\\u1B3A\\u1B3C\\u1B42\\u1B6B-\\u1B73\\u1B80\\u1B81\\u1BA2-\\u1BA5\\u1BA8\\u1BA9\\u1C2C-\\u1C33\\u1C36\\u1C37\\u1CD0-\\u1CD2\\u1CD4-\\u1CE0\\u1CE2-\\u1CE8\\u1CED\\u1DC0-\\u1DE6\\u1DFD-\\u1DFF\\u20D0-\\u20DC\\u20E1\\u20E5-\\u20F0\\u2CEF-\\u2CF1\\u2DE0-\\u2DFF\\u302A-\\u302F\\u3099\\u309A\\uA66F\\uA67C\\uA67D\\uA6F0\\uA6F1\\uA802\\uA806\\uA80B\\uA825\\uA826\\uA8C4\\uA8E0-\\uA8F1\\uA926-\\uA92D\\uA947-\\uA951\\uA980-\\uA982\\uA9B3\\uA9B6-\\uA9B9\\uA9BC\\uAA29-\\uAA2E\\uAA31\\uAA32\\uAA35\\uAA36\\uAA43\\uAA4C\\uAAB0\\uAAB2-\\uAAB4\\uAAB7\\uAAB8\\uAABE\\uAABF\\uAAC1\\uABE5\\uABE8\\uABED\\uFB1E\\uFE00-\\uFE0F\\uFE20-\\uFE26]"),
- space_combining_mark: new RegExp("[\\u0903\\u093E-\\u0940\\u0949-\\u094C\\u094E\\u0982\\u0983\\u09BE-\\u09C0\\u09C7\\u09C8\\u09CB\\u09CC\\u09D7\\u0A03\\u0A3E-\\u0A40\\u0A83\\u0ABE-\\u0AC0\\u0AC9\\u0ACB\\u0ACC\\u0B02\\u0B03\\u0B3E\\u0B40\\u0B47\\u0B48\\u0B4B\\u0B4C\\u0B57\\u0BBE\\u0BBF\\u0BC1\\u0BC2\\u0BC6-\\u0BC8\\u0BCA-\\u0BCC\\u0BD7\\u0C01-\\u0C03\\u0C41-\\u0C44\\u0C82\\u0C83\\u0CBE\\u0CC0-\\u0CC4\\u0CC7\\u0CC8\\u0CCA\\u0CCB\\u0CD5\\u0CD6\\u0D02\\u0D03\\u0D3E-\\u0D40\\u0D46-\\u0D48\\u0D4A-\\u0D4C\\u0D57\\u0D82\\u0D83\\u0DCF-\\u0DD1\\u0DD8-\\u0DDF\\u0DF2\\u0DF3\\u0F3E\\u0F3F\\u0F7F\\u102B\\u102C\\u1031\\u1038\\u103B\\u103C\\u1056\\u1057\\u1062-\\u1064\\u1067-\\u106D\\u1083\\u1084\\u1087-\\u108C\\u108F\\u109A-\\u109C\\u17B6\\u17BE-\\u17C5\\u17C7\\u17C8\\u1923-\\u1926\\u1929-\\u192B\\u1930\\u1931\\u1933-\\u1938\\u19B0-\\u19C0\\u19C8\\u19C9\\u1A19-\\u1A1B\\u1A55\\u1A57\\u1A61\\u1A63\\u1A64\\u1A6D-\\u1A72\\u1B04\\u1B35\\u1B3B\\u1B3D-\\u1B41\\u1B43\\u1B44\\u1B82\\u1BA1\\u1BA6\\u1BA7\\u1BAA\\u1C24-\\u1C2B\\u1C34\\u1C35\\u1CE1\\u1CF2\\uA823\\uA824\\uA827\\uA880\\uA881\\uA8B4-\\uA8C3\\uA952\\uA953\\uA983\\uA9B4\\uA9B5\\uA9BA\\uA9BB\\uA9BD-\\uA9C0\\uAA2F\\uAA30\\uAA33\\uAA34\\uAA4D\\uAA7B\\uABE3\\uABE4\\uABE6\\uABE7\\uABE9\\uABEA\\uABEC]"),
- connector_punctuation: new RegExp("[\\u005F\\u203F\\u2040\\u2054\\uFE33\\uFE34\\uFE4D-\\uFE4F\\uFF3F]")
-};
-
-function is_letter(ch) {
- return UNICODE.letter.test(ch);
-};
-
-function is_digit(ch) {
- ch = ch.charCodeAt(0);
- return ch >= 48 && ch <= 57; //XXX: find out if "UnicodeDigit" means something else than 0..9
-};
-
-function is_alphanumeric_char(ch) {
- return is_digit(ch) || is_letter(ch);
-};
-
-function is_unicode_combining_mark(ch) {
- return UNICODE.non_spacing_mark.test(ch) || UNICODE.space_combining_mark.test(ch);
-};
-
-function is_unicode_connector_punctuation(ch) {
- return UNICODE.connector_punctuation.test(ch);
-};
-
-function is_identifier_start(ch) {
- return ch == "$" || ch == "_" || is_letter(ch);
-};
-
-function is_identifier_char(ch) {
- return is_identifier_start(ch)
- || is_unicode_combining_mark(ch)
- || is_digit(ch)
- || is_unicode_connector_punctuation(ch)
- || ch == "\u200c" // zero-width non-joiner
- || ch == "\u200d" // zero-width joiner (in my ECMA-262 PDF, this is also 200c)
- ;
-};
-
-function parse_js_number(num) {
- if (RE_HEX_NUMBER.test(num)) {
- return parseInt(num.substr(2), 16);
- } else if (RE_OCT_NUMBER.test(num)) {
- return parseInt(num.substr(1), 8);
- } else if (RE_DEC_NUMBER.test(num)) {
- return parseFloat(num);
- }
-};
-
-function JS_Parse_Error(message, line, col, pos) {
- this.message = message;
- this.line = line;
- this.col = col;
- this.pos = pos;
-};
-
-JS_Parse_Error.prototype.toString = function() {
- return this.message + " (line: " + this.line + ", col: " + this.col + ", pos: " + this.pos + ")";
-};
-
-function js_error(message, line, col, pos) {
- throw new JS_Parse_Error(message, line, col, pos);
-};
-
-function is_token(token, type, val) {
- return token.type == type && (val == null || token.value == val);
-};
-
-var EX_EOF = {};
-
-function tokenizer($TEXT) {
-
- var S = {
- text : $TEXT.replace(/\r\n?|[\n\u2028\u2029]/g, "\n").replace(/^\uFEFF/, ''),
- pos : 0,
- tokpos : 0,
- line : 0,
- tokline : 0,
- col : 0,
- tokcol : 0,
- newline_before : false,
- regex_allowed : false,
- comments_before : []
- };
-
- function peek() { return S.text.charAt(S.pos); };
-
- function next(signal_eof) {
- var ch = S.text.charAt(S.pos++);
- if (signal_eof && !ch)
- throw EX_EOF;
- if (ch == "\n") {
- S.newline_before = true;
- ++S.line;
- S.col = 0;
- } else {
- ++S.col;
- }
- return ch;
- };
-
- function eof() {
- return !S.peek();
- };
-
- function find(what, signal_eof) {
- var pos = S.text.indexOf(what, S.pos);
- if (signal_eof && pos == -1) throw EX_EOF;
- return pos;
- };
-
- function start_token() {
- S.tokline = S.line;
- S.tokcol = S.col;
- S.tokpos = S.pos;
- };
-
- function token(type, value, is_comment) {
- S.regex_allowed = ((type == "operator" && !HOP(UNARY_POSTFIX, value)) ||
- (type == "keyword" && HOP(KEYWORDS_BEFORE_EXPRESSION, value)) ||
- (type == "punc" && HOP(PUNC_BEFORE_EXPRESSION, value)));
- var ret = {
- type : type,
- value : value,
- line : S.tokline,
- col : S.tokcol,
- pos : S.tokpos,
- nlb : S.newline_before
- };
- if (!is_comment) {
- ret.comments_before = S.comments_before;
- S.comments_before = [];
- }
- S.newline_before = false;
- return ret;
- };
-
- function skip_whitespace() {
- while (HOP(WHITESPACE_CHARS, peek()))
- next();
- };
-
- function read_while(pred) {
- var ret = "", ch = peek(), i = 0;
- while (ch && pred(ch, i++)) {
- ret += next();
- ch = peek();
- }
- return ret;
- };
-
- function parse_error(err) {
- js_error(err, S.tokline, S.tokcol, S.tokpos);
- };
-
- function read_num(prefix) {
- var has_e = false, after_e = false, has_x = false, has_dot = prefix == ".";
- var num = read_while(function(ch, i){
- if (ch == "x" || ch == "X") {
- if (has_x) return false;
- return has_x = true;
- }
- if (!has_x && (ch == "E" || ch == "e")) {
- if (has_e) return false;
- return has_e = after_e = true;
- }
- if (ch == "-") {
- if (after_e || (i == 0 && !prefix)) return true;
- return false;
- }
- if (ch == "+") return after_e;
- after_e = false;
- if (ch == ".") {
- if (!has_dot && !has_x)
- return has_dot = true;
- return false;
- }
- return is_alphanumeric_char(ch);
- });
- if (prefix)
- num = prefix + num;
- var valid = parse_js_number(num);
- if (!isNaN(valid)) {
- return token("num", valid);
- } else {
- parse_error("Invalid syntax: " + num);
- }
- };
-
- function read_escaped_char() {
- var ch = next(true);
- switch (ch) {
- case "n" : return "\n";
- case "r" : return "\r";
- case "t" : return "\t";
- case "b" : return "\b";
- case "v" : return "\v";
- case "f" : return "\f";
- case "0" : return "\0";
- case "x" : return String.fromCharCode(hex_bytes(2));
- case "u" : return String.fromCharCode(hex_bytes(4));
- case "\n": return "";
- default : return ch;
- }
- };
-
- function hex_bytes(n) {
- var num = 0;
- for (; n > 0; --n) {
- var digit = parseInt(next(true), 16);
- if (isNaN(digit))
- parse_error("Invalid hex-character pattern in string");
- num = (num << 4) | digit;
- }
- return num;
- };
-
- function read_string() {
- return with_eof_error("Unterminated string constant", function(){
- var quote = next(), ret = "";
- for (;;) {
- var ch = next(true);
- if (ch == "\\") {
- // read OctalEscapeSequence (XXX: deprecated if "strict mode")
- // https://github.com/mishoo/UglifyJS/issues/178
- var octal_len = 0, first = null;
- ch = read_while(function(ch){
- if (ch >= "0" && ch <= "7") {
- if (!first) {
- first = ch;
- return ++octal_len;
- }
- else if (first <= "3" && octal_len <= 2) return ++octal_len;
- else if (first >= "4" && octal_len <= 1) return ++octal_len;
- }
- return false;
- });
- if (octal_len > 0) ch = String.fromCharCode(parseInt(ch, 8));
- else ch = read_escaped_char();
- }
- else if (ch == quote) break;
- ret += ch;
- }
- return token("string", ret);
- });
- };
-
- function read_line_comment() {
- next();
- var i = find("\n"), ret;
- if (i == -1) {
- ret = S.text.substr(S.pos);
- S.pos = S.text.length;
- } else {
- ret = S.text.substring(S.pos, i);
- S.pos = i;
- }
- return token("comment1", ret, true);
- };
-
- function read_multiline_comment() {
- next();
- return with_eof_error("Unterminated multiline comment", function(){
- var i = find("*/", true),
- text = S.text.substring(S.pos, i),
- tok = token("comment2", text, true);
- S.pos = i + 2;
- S.line += text.split("\n").length - 1;
- S.newline_before = text.indexOf("\n") >= 0;
- return tok;
- });
- };
-
- function read_name() {
- var backslash = false, name = "", ch;
- while ((ch = peek()) != null) {
- if (!backslash) {
- if (ch == "\\") backslash = true, next();
- else if (is_identifier_char(ch)) name += next();
- else break;
- }
- else {
- if (ch != "u") parse_error("Expecting UnicodeEscapeSequence -- uXXXX");
- ch = read_escaped_char();
- if (!is_identifier_char(ch)) parse_error("Unicode char: " + ch.charCodeAt(0) + " is not valid in identifier");
- name += ch;
- backslash = false;
- }
- }
- return name;
- };
-
- function read_regexp() {
- return with_eof_error("Unterminated regular expression", function(){
- var prev_backslash = false, regexp = "", ch, in_class = false;
- while ((ch = next(true))) if (prev_backslash) {
- regexp += "\\" + ch;
- prev_backslash = false;
- } else if (ch == "[") {
- in_class = true;
- regexp += ch;
- } else if (ch == "]" && in_class) {
- in_class = false;
- regexp += ch;
- } else if (ch == "/" && !in_class) {
- break;
- } else if (ch == "\\") {
- prev_backslash = true;
- } else {
- regexp += ch;
- }
- var mods = read_name();
- return token("regexp", [ regexp, mods ]);
- });
- };
-
- function read_operator(prefix) {
- function grow(op) {
- if (!peek()) return op;
- var bigger = op + peek();
- if (HOP(OPERATORS, bigger)) {
- next();
- return grow(bigger);
- } else {
- return op;
- }
- };
- return token("operator", grow(prefix || next()));
- };
-
- function handle_slash() {
- next();
- var regex_allowed = S.regex_allowed;
- switch (peek()) {
- case "/":
- S.comments_before.push(read_line_comment());
- S.regex_allowed = regex_allowed;
- return next_token();
- case "*":
- S.comments_before.push(read_multiline_comment());
- S.regex_allowed = regex_allowed;
- return next_token();
- }
- return S.regex_allowed ? read_regexp() : read_operator("/");
- };
-
- function handle_dot() {
- next();
- return is_digit(peek())
- ? read_num(".")
- : token("punc", ".");
- };
-
- function read_word() {
- var word = read_name();
- return !HOP(KEYWORDS, word)
- ? token("name", word)
- : HOP(OPERATORS, word)
- ? token("operator", word)
- : HOP(KEYWORDS_ATOM, word)
- ? token("atom", word)
- : token("keyword", word);
- };
-
- function with_eof_error(eof_error, cont) {
- try {
- return cont();
- } catch(ex) {
- if (ex === EX_EOF) parse_error(eof_error);
- else throw ex;
- }
- };
-
- function next_token(force_regexp) {
- if (force_regexp)
- return read_regexp();
- skip_whitespace();
- start_token();
- var ch = peek();
- if (!ch) return token("eof");
- if (is_digit(ch)) return read_num();
- if (ch == '"' || ch == "'") return read_string();
- if (HOP(PUNC_CHARS, ch)) return token("punc", next());
- if (ch == ".") return handle_dot();
- if (ch == "/") return handle_slash();
- if (HOP(OPERATOR_CHARS, ch)) return read_operator();
- if (ch == "\\" || is_identifier_start(ch)) return read_word();
- parse_error("Unexpected character '" + ch + "'");
- };
-
- next_token.context = function(nc) {
- if (nc) S = nc;
- return S;
- };
-
- return next_token;
-
-};
-
-/* -----[ Parser (constants) ]----- */
-
-var UNARY_PREFIX = array_to_hash([
- "typeof",
- "void",
- "delete",
- "--",
- "++",
- "!",
- "~",
- "-",
- "+"
-]);
-
-var UNARY_POSTFIX = array_to_hash([ "--", "++" ]);
-
-var ASSIGNMENT = (function(a, ret, i){
- while (i < a.length) {
- ret[a[i]] = a[i].substr(0, a[i].length - 1);
- i++;
- }
- return ret;
-})(
- ["+=", "-=", "/=", "*=", "%=", ">>=", "<<=", ">>>=", "|=", "^=", "&="],
- { "=": true },
- 0
-);
-
-var PRECEDENCE = (function(a, ret){
- for (var i = 0, n = 1; i < a.length; ++i, ++n) {
- var b = a[i];
- for (var j = 0; j < b.length; ++j) {
- ret[b[j]] = n;
- }
- }
- return ret;
-})(
- [
- ["||"],
- ["&&"],
- ["|"],
- ["^"],
- ["&"],
- ["==", "===", "!=", "!=="],
- ["<", ">", "<=", ">=", "in", "instanceof"],
- [">>", "<<", ">>>"],
- ["+", "-"],
- ["*", "/", "%"]
- ],
- {}
-);
-
-var STATEMENTS_WITH_LABELS = array_to_hash([ "for", "do", "while", "switch" ]);
-
-var ATOMIC_START_TOKEN = array_to_hash([ "atom", "num", "string", "regexp", "name" ]);
-
-/* -----[ Parser ]----- */
-
-function NodeWithToken(str, start, end) {
- this.name = str;
- this.start = start;
- this.end = end;
-};
-
-NodeWithToken.prototype.toString = function() { return this.name; };
-
-function parse($TEXT, exigent_mode, embed_tokens) {
-
- var S = {
- input : typeof $TEXT == "string" ? tokenizer($TEXT, true) : $TEXT,
- token : null,
- prev : null,
- peeked : null,
- in_function : 0,
- in_loop : 0,
- labels : []
- };
-
- S.token = next();
-
- function is(type, value) {
- return is_token(S.token, type, value);
- };
-
- function peek() { return S.peeked || (S.peeked = S.input()); };
-
- function next() {
- S.prev = S.token;
- if (S.peeked) {
- S.token = S.peeked;
- S.peeked = null;
- } else {
- S.token = S.input();
- }
- return S.token;
- };
-
- function prev() {
- return S.prev;
- };
-
- function croak(msg, line, col, pos) {
- var ctx = S.input.context();
- js_error(msg,
- line != null ? line : ctx.tokline,
- col != null ? col : ctx.tokcol,
- pos != null ? pos : ctx.tokpos);
- };
-
- function token_error(token, msg) {
- croak(msg, token.line, token.col);
- };
-
- function unexpected(token) {
- if (token == null)
- token = S.token;
- token_error(token, "Unexpected token: " + token.type + " (" + token.value + ")");
- };
-
- function expect_token(type, val) {
- if (is(type, val)) {
- return next();
- }
- token_error(S.token, "Unexpected token " + S.token.type + ", expected " + type);
- };
-
- function expect(punc) { return expect_token("punc", punc); };
-
- function can_insert_semicolon() {
- return !exigent_mode && (
- S.token.nlb || is("eof") || is("punc", "}")
- );
- };
-
- function semicolon() {
- if (is("punc", ";")) next();
- else if (!can_insert_semicolon()) unexpected();
- };
-
- function as() {
- return slice(arguments);
- };
-
- function parenthesised() {
- expect("(");
- var ex = expression();
- expect(")");
- return ex;
- };
-
- function add_tokens(str, start, end) {
- return str instanceof NodeWithToken ? str : new NodeWithToken(str, start, end);
- };
-
- function maybe_embed_tokens(parser) {
- if (embed_tokens) return function() {
- var start = S.token;
- var ast = parser.apply(this, arguments);
- ast[0] = add_tokens(ast[0], start, prev());
- return ast;
- };
- else return parser;
- };
-
- var statement = maybe_embed_tokens(function() {
- if (is("operator", "/")) {
- S.peeked = null;
- S.token = S.input(true); // force regexp
- }
- switch (S.token.type) {
- case "num":
- case "string":
- case "regexp":
- case "operator":
- case "atom":
- return simple_statement();
-
- case "name":
- return is_token(peek(), "punc", ":")
- ? labeled_statement(prog1(S.token.value, next, next))
- : simple_statement();
-
- case "punc":
- switch (S.token.value) {
- case "{":
- return as("block", block_());
- case "[":
- case "(":
- return simple_statement();
- case ";":
- next();
- return as("block");
- default:
- unexpected();
- }
-
- case "keyword":
- switch (prog1(S.token.value, next)) {
- case "break":
- return break_cont("break");
-
- case "continue":
- return break_cont("continue");
-
- case "debugger":
- semicolon();
- return as("debugger");
-
- case "do":
- return (function(body){
- expect_token("keyword", "while");
- return as("do", prog1(parenthesised, semicolon), body);
- })(in_loop(statement));
-
- case "for":
- return for_();
-
- case "function":
- return function_(true);
-
- case "if":
- return if_();
-
- case "return":
- if (S.in_function == 0)
- croak("'return' outside of function");
- return as("return",
- is("punc", ";")
- ? (next(), null)
- : can_insert_semicolon()
- ? null
- : prog1(expression, semicolon));
-
- case "switch":
- return as("switch", parenthesised(), switch_block_());
-
- case "throw":
- return as("throw", prog1(expression, semicolon));
-
- case "try":
- return try_();
-
- case "var":
- return prog1(var_, semicolon);
-
- case "const":
- return prog1(const_, semicolon);
-
- case "while":
- return as("while", parenthesised(), in_loop(statement));
-
- case "with":
- return as("with", parenthesised(), statement());
-
- default:
- unexpected();
- }
- }
- });
-
- function labeled_statement(label) {
- S.labels.push(label);
- var start = S.token, stat = statement();
- if (exigent_mode && !HOP(STATEMENTS_WITH_LABELS, stat[0]))
- unexpected(start);
- S.labels.pop();
- return as("label", label, stat);
- };
-
- function simple_statement() {
- return as("stat", prog1(expression, semicolon));
- };
-
- function break_cont(type) {
- var name;
- if (!can_insert_semicolon()) {
- name = is("name") ? S.token.value : null;
- }
- if (name != null) {
- next();
- if (!member(name, S.labels))
- croak("Label " + name + " without matching loop or statement");
- }
- else if (S.in_loop == 0)
- croak(type + " not inside a loop or switch");
- semicolon();
- return as(type, name);
- };
-
- function for_() {
- expect("(");
- var init = null;
- if (!is("punc", ";")) {
- init = is("keyword", "var")
- ? (next(), var_(true))
- : expression(true, true);
- if (is("operator", "in"))
- return for_in(init);
- }
- return regular_for(init);
- };
-
- function regular_for(init) {
- expect(";");
- var test = is("punc", ";") ? null : expression();
- expect(";");
- var step = is("punc", ")") ? null : expression();
- expect(")");
- return as("for", init, test, step, in_loop(statement));
- };
-
- function for_in(init) {
- var lhs = init[0] == "var" ? as("name", init[1][0]) : init;
- next();
- var obj = expression();
- expect(")");
- return as("for-in", init, lhs, obj, in_loop(statement));
- };
-
- var function_ = maybe_embed_tokens(function(in_statement) {
- var name = is("name") ? prog1(S.token.value, next) : null;
- if (in_statement && !name)
- unexpected();
- expect("(");
- return as(in_statement ? "defun" : "function",
- name,
- // arguments
- (function(first, a){
- while (!is("punc", ")")) {
- if (first) first = false; else expect(",");
- if (!is("name")) unexpected();
- a.push(S.token.value);
- next();
- }
- next();
- return a;
- })(true, []),
- // body
- (function(){
- ++S.in_function;
- var loop = S.in_loop;
- S.in_loop = 0;
- var a = block_();
- --S.in_function;
- S.in_loop = loop;
- return a;
- })());
- });
-
- function if_() {
- var cond = parenthesised(), body = statement(), belse;
- if (is("keyword", "else")) {
- next();
- belse = statement();
- }
- return as("if", cond, body, belse);
- };
-
- function block_() {
- expect("{");
- var a = [];
- while (!is("punc", "}")) {
- if (is("eof")) unexpected();
- a.push(statement());
- }
- next();
- return a;
- };
-
- var switch_block_ = curry(in_loop, function(){
- expect("{");
- var a = [], cur = null;
- while (!is("punc", "}")) {
- if (is("eof")) unexpected();
- if (is("keyword", "case")) {
- next();
- cur = [];
- a.push([ expression(), cur ]);
- expect(":");
- }
- else if (is("keyword", "default")) {
- next();
- expect(":");
- cur = [];
- a.push([ null, cur ]);
- }
- else {
- if (!cur) unexpected();
- cur.push(statement());
- }
- }
- next();
- return a;
- });
-
- function try_() {
- var body = block_(), bcatch, bfinally;
- if (is("keyword", "catch")) {
- next();
- expect("(");
- if (!is("name"))
- croak("Name expected");
- var name = S.token.value;
- next();
- expect(")");
- bcatch = [ name, block_() ];
- }
- if (is("keyword", "finally")) {
- next();
- bfinally = block_();
- }
- if (!bcatch && !bfinally)
- croak("Missing catch/finally blocks");
- return as("try", body, bcatch, bfinally);
- };
-
- function vardefs(no_in) {
- var a = [];
- for (;;) {
- if (!is("name"))
- unexpected();
- var name = S.token.value;
- next();
- if (is("operator", "=")) {
- next();
- a.push([ name, expression(false, no_in) ]);
- } else {
- a.push([ name ]);
- }
- if (!is("punc", ","))
- break;
- next();
- }
- return a;
- };
-
- function var_(no_in) {
- return as("var", vardefs(no_in));
- };
-
- function const_() {
- return as("const", vardefs());
- };
-
- function new_() {
- var newexp = expr_atom(false), args;
- if (is("punc", "(")) {
- next();
- args = expr_list(")");
- } else {
- args = [];
- }
- return subscripts(as("new", newexp, args), true);
- };
-
- var expr_atom = maybe_embed_tokens(function(allow_calls) {
- if (is("operator", "new")) {
- next();
- return new_();
- }
- if (is("operator") && HOP(UNARY_PREFIX, S.token.value)) {
- return make_unary("unary-prefix",
- prog1(S.token.value, next),
- expr_atom(allow_calls));
- }
- if (is("punc")) {
- switch (S.token.value) {
- case "(":
- next();
- return subscripts(prog1(expression, curry(expect, ")")), allow_calls);
- case "[":
- next();
- return subscripts(array_(), allow_calls);
- case "{":
- next();
- return subscripts(object_(), allow_calls);
- }
- unexpected();
- }
- if (is("keyword", "function")) {
- next();
- return subscripts(function_(false), allow_calls);
- }
- if (HOP(ATOMIC_START_TOKEN, S.token.type)) {
- var atom = S.token.type == "regexp"
- ? as("regexp", S.token.value[0], S.token.value[1])
- : as(S.token.type, S.token.value);
- return subscripts(prog1(atom, next), allow_calls);
- }
- unexpected();
- });
-
- function expr_list(closing, allow_trailing_comma, allow_empty) {
- var first = true, a = [];
- while (!is("punc", closing)) {
- if (first) first = false; else expect(",");
- if (allow_trailing_comma && is("punc", closing)) break;
- if (is("punc", ",") && allow_empty) {
- a.push([ "atom", "undefined" ]);
- } else {
- a.push(expression(false));
- }
- }
- next();
- return a;
- };
-
- function array_() {
- return as("array", expr_list("]", !exigent_mode, true));
- };
-
- function object_() {
- var first = true, a = [];
- while (!is("punc", "}")) {
- if (first) first = false; else expect(",");
- if (!exigent_mode && is("punc", "}"))
- // allow trailing comma
- break;
- var type = S.token.type;
- var name = as_property_name();
- if (type == "name" && (name == "get" || name == "set") && !is("punc", ":")) {
- a.push([ as_name(), function_(false), name ]);
- } else {
- expect(":");
- a.push([ name, expression(false) ]);
- }
- }
- next();
- return as("object", a);
- };
-
- function as_property_name() {
- switch (S.token.type) {
- case "num":
- case "string":
- return prog1(S.token.value, next);
- }
- return as_name();
- };
-
- function as_name() {
- switch (S.token.type) {
- case "name":
- case "operator":
- case "keyword":
- case "atom":
- return prog1(S.token.value, next);
- default:
- unexpected();
- }
- };
-
- function subscripts(expr, allow_calls) {
- if (is("punc", ".")) {
- next();
- return subscripts(as("dot", expr, as_name()), allow_calls);
- }
- if (is("punc", "[")) {
- next();
- return subscripts(as("sub", expr, prog1(expression, curry(expect, "]"))), allow_calls);
- }
- if (allow_calls && is("punc", "(")) {
- next();
- return subscripts(as("call", expr, expr_list(")")), true);
- }
- if (allow_calls && is("operator") && HOP(UNARY_POSTFIX, S.token.value)) {
- return prog1(curry(make_unary, "unary-postfix", S.token.value, expr),
- next);
- }
- return expr;
- };
-
- function make_unary(tag, op, expr) {
- if ((op == "++" || op == "--") && !is_assignable(expr))
- croak("Invalid use of " + op + " operator");
- return as(tag, op, expr);
- };
-
- function expr_op(left, min_prec, no_in) {
- var op = is("operator") ? S.token.value : null;
- if (op && op == "in" && no_in) op = null;
- var prec = op != null ? PRECEDENCE[op] : null;
- if (prec != null && prec > min_prec) {
- next();
- var right = expr_op(expr_atom(true), prec, no_in);
- return expr_op(as("binary", op, left, right), min_prec, no_in);
- }
- return left;
- };
-
- function expr_ops(no_in) {
- return expr_op(expr_atom(true), 0, no_in);
- };
-
- function maybe_conditional(no_in) {
- var expr = expr_ops(no_in);
- if (is("operator", "?")) {
- next();
- var yes = expression(false);
- expect(":");
- return as("conditional", expr, yes, expression(false, no_in));
- }
- return expr;
- };
-
- function is_assignable(expr) {
- if (!exigent_mode) return true;
- switch (expr[0]) {
- case "dot":
- case "sub":
- case "new":
- case "call":
- return true;
- case "name":
- return expr[1] != "this";
- }
- };
-
- function maybe_assign(no_in) {
- var left = maybe_conditional(no_in), val = S.token.value;
- if (is("operator") && HOP(ASSIGNMENT, val)) {
- if (is_assignable(left)) {
- next();
- return as("assign", ASSIGNMENT[val], left, maybe_assign(no_in));
- }
- croak("Invalid assignment");
- }
- return left;
- };
-
- var expression = maybe_embed_tokens(function(commas, no_in) {
- if (arguments.length == 0)
- commas = true;
- var expr = maybe_assign(no_in);
- if (commas && is("punc", ",")) {
- next();
- return as("seq", expr, expression(true, no_in));
- }
- return expr;
- });
-
- function in_loop(cont) {
- try {
- ++S.in_loop;
- return cont();
- } finally {
- --S.in_loop;
- }
- };
-
- return as("toplevel", (function(a){
- while (!is("eof"))
- a.push(statement());
- return a;
- })([]));
-
-};
-
-/* -----[ Utilities ]----- */
-
-function curry(f) {
- var args = slice(arguments, 1);
- return function() { return f.apply(this, args.concat(slice(arguments))); };
-};
-
-function prog1(ret) {
- if (ret instanceof Function)
- ret = ret();
- for (var i = 1, n = arguments.length; --n > 0; ++i)
- arguments[i]();
- return ret;
-};
-
-function array_to_hash(a) {
- var ret = {};
- for (var i = 0; i < a.length; ++i)
- ret[a[i]] = true;
- return ret;
-};
-
-function slice(a, start) {
- return Array.prototype.slice.call(a, start || 0);
-};
-
-function characters(str) {
- return str.split("");
-};
-
-function member(name, array) {
- for (var i = array.length; --i >= 0;)
- if (array[i] === name)
- return true;
- return false;
-};
-
-function HOP(obj, prop) {
- return Object.prototype.hasOwnProperty.call(obj, prop);
-};
-
-/* -----[ helper for AST traversal ]----- */
-
-function ast_walker() {
- function _vardefs(defs) {
- return [ this[0], MAP(defs, function(def){
- var a = [ def[0] ];
- if (def.length > 1)
- a[1] = walk(def[1]);
- return a;
- }) ];
- };
- function _block(statements) {
- var out = [ this[0] ];
- if (statements != null)
- out.push(MAP(statements, walk));
- return out;
- };
- var walkers = {
- "string": function(str) {
- return [ this[0], str ];
- },
- "num": function(num) {
- return [ this[0], num ];
- },
- "name": function(name) {
- return [ this[0], name ];
- },
- "toplevel": function(statements) {
- return [ this[0], MAP(statements, walk) ];
- },
- "block": _block,
- "splice": _block,
- "var": _vardefs,
- "const": _vardefs,
- "try": function(t, c, f) {
- return [
- this[0],
- MAP(t, walk),
- c != null ? [ c[0], MAP(c[1], walk) ] : null,
- f != null ? MAP(f, walk) : null
- ];
- },
- "throw": function(expr) {
- return [ this[0], walk(expr) ];
- },
- "new": function(ctor, args) {
- return [ this[0], walk(ctor), MAP(args, walk) ];
- },
- "switch": function(expr, body) {
- return [ this[0], walk(expr), MAP(body, function(branch){
- return [ branch[0] ? walk(branch[0]) : null,
- MAP(branch[1], walk) ];
- }) ];
- },
- "break": function(label) {
- return [ this[0], label ];
- },
- "continue": function(label) {
- return [ this[0], label ];
- },
- "conditional": function(cond, t, e) {
- return [ this[0], walk(cond), walk(t), walk(e) ];
- },
- "assign": function(op, lvalue, rvalue) {
- return [ this[0], op, walk(lvalue), walk(rvalue) ];
- },
- "dot": function(expr) {
- return [ this[0], walk(expr) ].concat(slice(arguments, 1));
- },
- "call": function(expr, args) {
- return [ this[0], walk(expr), MAP(args, walk) ];
- },
- "function": function(name, args, body) {
- return [ this[0], name, args.slice(), MAP(body, walk) ];
- },
- "defun": function(name, args, body) {
- return [ this[0], name, args.slice(), MAP(body, walk) ];
- },
- "if": function(conditional, t, e) {
- return [ this[0], walk(conditional), walk(t), walk(e) ];
- },
- "for": function(init, cond, step, block) {
- return [ this[0], walk(init), walk(cond), walk(step), walk(block) ];
- },
- "for-in": function(vvar, key, hash, block) {
- return [ this[0], walk(vvar), walk(key), walk(hash), walk(block) ];
- },
- "while": function(cond, block) {
- return [ this[0], walk(cond), walk(block) ];
- },
- "do": function(cond, block) {
- return [ this[0], walk(cond), walk(block) ];
- },
- "return": function(expr) {
- return [ this[0], walk(expr) ];
- },
- "binary": function(op, left, right) {
- return [ this[0], op, walk(left), walk(right) ];
- },
- "unary-prefix": function(op, expr) {
- return [ this[0], op, walk(expr) ];
- },
- "unary-postfix": function(op, expr) {
- return [ this[0], op, walk(expr) ];
- },
- "sub": function(expr, subscript) {
- return [ this[0], walk(expr), walk(subscript) ];
- },
- "object": function(props) {
- return [ this[0], MAP(props, function(p){
- return p.length == 2
- ? [ p[0], walk(p[1]) ]
- : [ p[0], walk(p[1]), p[2] ]; // get/set-ter
- }) ];
- },
- "regexp": function(rx, mods) {
- return [ this[0], rx, mods ];
- },
- "array": function(elements) {
- return [ this[0], MAP(elements, walk) ];
- },
- "stat": function(stat) {
- return [ this[0], walk(stat) ];
- },
- "seq": function() {
- return [ this[0] ].concat(MAP(slice(arguments), walk));
- },
- "label": function(name, block) {
- return [ this[0], name, walk(block) ];
- },
- "with": function(expr, block) {
- return [ this[0], walk(expr), walk(block) ];
- },
- "atom": function(name) {
- return [ this[0], name ];
- }
- };
-
- var user = {};
- var stack = [];
- function walk(ast) {
- if (ast == null)
- return null;
- try {
- stack.push(ast);
- var type = ast[0];
- var gen = user[type];
- if (gen) {
- var ret = gen.apply(ast, ast.slice(1));
- if (ret != null)
- return ret;
- }
- gen = walkers[type];
- return gen.apply(ast, ast.slice(1));
- } finally {
- stack.pop();
- }
- };
-
- function with_walkers(walkers, cont){
- var save = {}, i;
- for (i in walkers) if (HOP(walkers, i)) {
- save[i] = user[i];
- user[i] = walkers[i];
- }
- var ret = cont();
- for (i in save) if (HOP(save, i)) {
- if (!save[i]) delete user[i];
- else user[i] = save[i];
- }
- return ret;
- };
-
- return {
- walk: walk,
- with_walkers: with_walkers,
- parent: function() {
- return stack[stack.length - 2]; // last one is current node
- },
- stack: function() {
- return stack;
- }
- };
-};
-
-function empty(b) {
- return !b || (b[0] == "block" && (!b[1] || b[1].length == 0));
-};
-
-/* -----[ re-generate code from the AST ]----- */
-
-var DOT_CALL_NO_PARENS = array_to_hash([
- "name",
- "array",
- "object",
- "string",
- "dot",
- "sub",
- "call",
- "regexp"
-]);
-
-function make_string(str, ascii_only) {
- var dq = 0, sq = 0;
- str = str.replace(/[\\\b\f\n\r\t\x22\x27\u2028\u2029]/g, function(s){
- switch (s) {
- case "\\": return "\\\\";
- case "\b": return "\\b";
- case "\f": return "\\f";
- case "\n": return "\\n";
- case "\r": return "\\r";
- case "\t": return "\\t";
- case "\u2028": return "\\u2028";
- case "\u2029": return "\\u2029";
- case '"': ++dq; return '"';
- case "'": ++sq; return "'";
- }
- return s;
- });
- if (ascii_only) str = to_ascii(str);
- if (dq > sq) return "'" + str.replace(/\x27/g, "\\'") + "'";
- else return '"' + str.replace(/\x22/g, '\\"') + '"';
-};
-
-function to_ascii(str) {
- return str.replace(/[\u0080-\uffff]/g, function(ch) {
- var code = ch.charCodeAt(0).toString(16);
- while (code.length < 4) code = "0" + code;
- return "\\u" + code;
- });
-};
-
-var SPLICE_NEEDS_BRACKETS = array_to_hash([ "if", "while", "do", "for", "for-in", "with" ]);
-
-function gen_code(ast, options) {
- options = defaults(options, {
- indent_start : 0,
- indent_level : 4,
- quote_keys : false,
- space_colon : false,
- beautify : false,
- ascii_only : false,
- inline_script: false
- });
- var beautify = !!options.beautify;
- var indentation = 0,
- newline = beautify ? "\n" : "",
- space = beautify ? " " : "";
-
- function encode_string(str) {
- var ret = make_string(str, options.ascii_only);
- if (options.inline_script)
- ret = ret.replace(/<\x2fscript([>/\t\n\f\r ])/gi, "<\\/script$1");
- return ret;
- };
-
- function make_name(name) {
- name = name.toString();
- if (options.ascii_only)
- name = to_ascii(name);
- return name;
- };
-
- function indent(line) {
- if (line == null)
- line = "";
- if (beautify)
- line = repeat_string(" ", options.indent_start + indentation * options.indent_level) + line;
- return line;
- };
-
- function with_indent(cont, incr) {
- if (incr == null) incr = 1;
- indentation += incr;
- try { return cont.apply(null, slice(arguments, 1)); }
- finally { indentation -= incr; }
- };
-
- function add_spaces(a) {
- if (beautify)
- return a.join(" ");
- var b = [];
- for (var i = 0; i < a.length; ++i) {
- var next = a[i + 1];
- b.push(a[i]);
- if (next &&
- ((/[a-z0-9_\x24]$/i.test(a[i].toString()) && /^[a-z0-9_\x24]/i.test(next.toString())) ||
- (/[\+\-]$/.test(a[i].toString()) && /^[\+\-]/.test(next.toString())))) {
- b.push(" ");
- }
- }
- return b.join("");
- };
-
- function add_commas(a) {
- return a.join("," + space);
- };
-
- function parenthesize(expr) {
- var gen = make(expr);
- for (var i = 1; i < arguments.length; ++i) {
- var el = arguments[i];
- if ((el instanceof Function && el(expr)) || expr[0] == el)
- return "(" + gen + ")";
- }
- return gen;
- };
-
- function best_of(a) {
- if (a.length == 1) {
- return a[0];
- }
- if (a.length == 2) {
- var b = a[1];
- a = a[0];
- return a.length <= b.length ? a : b;
- }
- return best_of([ a[0], best_of(a.slice(1)) ]);
- };
-
- function needs_parens(expr) {
- if (expr[0] == "function" || expr[0] == "object") {
- // dot/call on a literal function requires the
- // function literal itself to be parenthesized
- // only if it's the first "thing" in a
- // statement. This means that the parent is
- // "stat", but it could also be a "seq" and
- // we're the first in this "seq" and the
- // parent is "stat", and so on. Messy stuff,
- // but it worths the trouble.
- var a = slice($stack), self = a.pop(), p = a.pop();
- while (p) {
- if (p[0] == "stat") return true;
- if (((p[0] == "seq" || p[0] == "call" || p[0] == "dot" || p[0] == "sub" || p[0] == "conditional") && p[1] === self) ||
- ((p[0] == "binary" || p[0] == "assign" || p[0] == "unary-postfix") && p[2] === self)) {
- self = p;
- p = a.pop();
- } else {
- return false;
- }
- }
- }
- return !HOP(DOT_CALL_NO_PARENS, expr[0]);
- };
-
- function make_num(num) {
- var str = num.toString(10), a = [ str.replace(/^0\./, ".") ], m;
- if (Math.floor(num) === num) {
- a.push("0x" + num.toString(16).toLowerCase(), // probably pointless
- "0" + num.toString(8)); // same.
- if ((m = /^(.*?)(0+)$/.exec(num))) {
- a.push(m[1] + "e" + m[2].length);
- }
- } else if ((m = /^0?\.(0+)(.*)$/.exec(num))) {
- a.push(m[2] + "e-" + (m[1].length + m[2].length),
- str.substr(str.indexOf(".")));
- }
- return best_of(a);
- };
-
- var generators = {
- "string": encode_string,
- "num": make_num,
- "name": make_name,
- "toplevel": function(statements) {
- return make_block_statements(statements)
- .join(newline);
- },
- "splice": function(statements) {
- var parent = $stack[$stack.length - 2][0];
- if (HOP(SPLICE_NEEDS_BRACKETS, parent)) {
- // we need block brackets in this case
- return make_block.apply(this, arguments);
- } else {
- return MAP(make_block_statements(statements, true),
- function(line, i) {
- // the first line is already indented
- return i > 0 ? indent(line) : line;
- }).join(newline);
- }
- },
- "block": make_block,
- "var": function(defs) {
- return "var " + add_commas(MAP(defs, make_1vardef)) + ";";
- },
- "const": function(defs) {
- return "const " + add_commas(MAP(defs, make_1vardef)) + ";";
- },
- "try": function(tr, ca, fi) {
- var out = [ "try", make_block(tr) ];
- if (ca) out.push("catch", "(" + ca[0] + ")", make_block(ca[1]));
- if (fi) out.push("finally", make_block(fi));
- return add_spaces(out);
- },
- "throw": function(expr) {
- return add_spaces([ "throw", make(expr) ]) + ";";
- },
- "new": function(ctor, args) {
- args = args.length > 0 ? "(" + add_commas(MAP(args, make)) + ")" : "";
- return add_spaces([ "new", parenthesize(ctor, "seq", "binary", "conditional", "assign", function(expr){
- var w = ast_walker(), has_call = {};
- try {
- w.with_walkers({
- "call": function() { throw has_call },
- "function": function() { return this }
- }, function(){
- w.walk(expr);
- });
- } catch(ex) {
- if (ex === has_call)
- return true;
- throw ex;
- }
- }) + args ]);
- },
- "switch": function(expr, body) {
- return add_spaces([ "switch", "(" + make(expr) + ")", make_switch_block(body) ]);
- },
- "break": function(label) {
- var out = "break";
- if (label != null)
- out += " " + make_name(label);
- return out + ";";
- },
- "continue": function(label) {
- var out = "continue";
- if (label != null)
- out += " " + make_name(label);
- return out + ";";
- },
- "conditional": function(co, th, el) {
- return add_spaces([ parenthesize(co, "assign", "seq", "conditional"), "?",
- parenthesize(th, "seq"), ":",
- parenthesize(el, "seq") ]);
- },
- "assign": function(op, lvalue, rvalue) {
- if (op && op !== true) op += "=";
- else op = "=";
- return add_spaces([ make(lvalue), op, parenthesize(rvalue, "seq") ]);
- },
- "dot": function(expr) {
- var out = make(expr), i = 1;
- if (expr[0] == "num") {
- if (!/\./.test(expr[1]))
- out += ".";
- } else if (needs_parens(expr))
- out = "(" + out + ")";
- while (i < arguments.length)
- out += "." + make_name(arguments[i++]);
- return out;
- },
- "call": function(func, args) {
- var f = make(func);
- if (needs_parens(func))
- f = "(" + f + ")";
- return f + "(" + add_commas(MAP(args, function(expr){
- return parenthesize(expr, "seq");
- })) + ")";
- },
- "function": make_function,
- "defun": make_function,
- "if": function(co, th, el) {
- var out = [ "if", "(" + make(co) + ")", el ? make_then(th) : make(th) ];
- if (el) {
- out.push("else", make(el));
- }
- return add_spaces(out);
- },
- "for": function(init, cond, step, block) {
- var out = [ "for" ];
- init = (init != null ? make(init) : "").replace(/;*\s*$/, ";" + space);
- cond = (cond != null ? make(cond) : "").replace(/;*\s*$/, ";" + space);
- step = (step != null ? make(step) : "").replace(/;*\s*$/, "");
- var args = init + cond + step;
- if (args == "; ; ") args = ";;";
- out.push("(" + args + ")", make(block));
- return add_spaces(out);
- },
- "for-in": function(vvar, key, hash, block) {
- return add_spaces([ "for", "(" +
- (vvar ? make(vvar).replace(/;+$/, "") : make(key)),
- "in",
- make(hash) + ")", make(block) ]);
- },
- "while": function(condition, block) {
- return add_spaces([ "while", "(" + make(condition) + ")", make(block) ]);
- },
- "do": function(condition, block) {
- return add_spaces([ "do", make(block), "while", "(" + make(condition) + ")" ]) + ";";
- },
- "return": function(expr) {
- var out = [ "return" ];
- if (expr != null) out.push(make(expr));
- return add_spaces(out) + ";";
- },
- "binary": function(operator, lvalue, rvalue) {
- var left = make(lvalue), right = make(rvalue);
- // XXX: I'm pretty sure other cases will bite here.
- // we need to be smarter.
- // adding parens all the time is the safest bet.
- if (member(lvalue[0], [ "assign", "conditional", "seq" ]) ||
- lvalue[0] == "binary" && PRECEDENCE[operator] > PRECEDENCE[lvalue[1]]) {
- left = "(" + left + ")";
- }
- if (member(rvalue[0], [ "assign", "conditional", "seq" ]) ||
- rvalue[0] == "binary" && PRECEDENCE[operator] >= PRECEDENCE[rvalue[1]] &&
- !(rvalue[1] == operator && member(operator, [ "&&", "||", "*" ]))) {
- right = "(" + right + ")";
- }
- else if (!beautify && options.inline_script && (operator == "<" || operator == "<<")
- && rvalue[0] == "regexp" && /^script/i.test(rvalue[1])) {
- right = " " + right;
- }
- return add_spaces([ left, operator, right ]);
- },
- "unary-prefix": function(operator, expr) {
- var val = make(expr);
- if (!(expr[0] == "num" || (expr[0] == "unary-prefix" && !HOP(OPERATORS, operator + expr[1])) || !needs_parens(expr)))
- val = "(" + val + ")";
- return operator + (is_alphanumeric_char(operator.charAt(0)) ? " " : "") + val;
- },
- "unary-postfix": function(operator, expr) {
- var val = make(expr);
- if (!(expr[0] == "num" || (expr[0] == "unary-postfix" && !HOP(OPERATORS, operator + expr[1])) || !needs_parens(expr)))
- val = "(" + val + ")";
- return val + operator;
- },
- "sub": function(expr, subscript) {
- var hash = make(expr);
- if (needs_parens(expr))
- hash = "(" + hash + ")";
- return hash + "[" + make(subscript) + "]";
- },
- "object": function(props) {
- if (props.length == 0)
- return "{}";
- return "{" + newline + with_indent(function(){
- return MAP(props, function(p){
- if (p.length == 3) {
- // getter/setter. The name is in p[0], the arg.list in p[1][2], the
- // body in p[1][3] and type ("get" / "set") in p[2].
- return indent(make_function(p[0], p[1][2], p[1][3], p[2]));
- }
- var key = p[0], val = parenthesize(p[1], "seq");
- if (options.quote_keys) {
- key = encode_string(key);
- } else if ((typeof key == "number" || !beautify && +key + "" == key)
- && parseFloat(key) >= 0) {
- key = make_num(+key);
- } else if (!is_identifier(key)) {
- key = encode_string(key);
- }
- return indent(add_spaces(beautify && options.space_colon
- ? [ key, ":", val ]
- : [ key + ":", val ]));
- }).join("," + newline);
- }) + newline + indent("}");
- },
- "regexp": function(rx, mods) {
- return "/" + rx + "/" + mods;
- },
- "array": function(elements) {
- if (elements.length == 0) return "[]";
- return add_spaces([ "[", add_commas(MAP(elements, function(el){
- if (!beautify && el[0] == "atom" && el[1] == "undefined") return "";
- return parenthesize(el, "seq");
- })), "]" ]);
- },
- "stat": function(stmt) {
- return make(stmt).replace(/;*\s*$/, ";");
- },
- "seq": function() {
- return add_commas(MAP(slice(arguments), make));
- },
- "label": function(name, block) {
- return add_spaces([ make_name(name), ":", make(block) ]);
- },
- "with": function(expr, block) {
- return add_spaces([ "with", "(" + make(expr) + ")", make(block) ]);
- },
- "atom": function(name) {
- return make_name(name);
- }
- };
-
- // The squeezer replaces "block"-s that contain only a single
- // statement with the statement itself; technically, the AST
- // is correct, but this can create problems when we output an
- // IF having an ELSE clause where the THEN clause ends in an
- // IF *without* an ELSE block (then the outer ELSE would refer
- // to the inner IF). This function checks for this case and
- // adds the block brackets if needed.
- function make_then(th) {
- if (th[0] == "do") {
- // https://github.com/mishoo/UglifyJS/issues/#issue/57
- // IE croaks with "syntax error" on code like this:
- // if (foo) do ... while(cond); else ...
- // we need block brackets around do/while
- return make([ "block", [ th ]]);
- }
- var b = th;
- while (true) {
- var type = b[0];
- if (type == "if") {
- if (!b[3])
- // no else, we must add the block
- return make([ "block", [ th ]]);
- b = b[3];
- }
- else if (type == "while" || type == "do") b = b[2];
- else if (type == "for" || type == "for-in") b = b[4];
- else break;
- }
- return make(th);
- };
-
- function make_function(name, args, body, keyword) {
- var out = keyword || "function";
- if (name) {
- out += " " + make_name(name);
- }
- out += "(" + add_commas(MAP(args, make_name)) + ")";
- return add_spaces([ out, make_block(body) ]);
- };
-
- function make_block_statements(statements, noindent) {
- for (var a = [], last = statements.length - 1, i = 0; i <= last; ++i) {
- var stat = statements[i];
- var code = make(stat);
- if (code != ";") {
- if (!beautify && i == last) {
- if ((stat[0] == "while" && empty(stat[2])) ||
- (member(stat[0], [ "for", "for-in"] ) && empty(stat[4])) ||
- (stat[0] == "if" && empty(stat[2]) && !stat[3]) ||
- (stat[0] == "if" && stat[3] && empty(stat[3]))) {
- code = code.replace(/;*\s*$/, ";");
- } else {
- code = code.replace(/;+\s*$/, "");
- }
- }
- a.push(code);
- }
- }
- return noindent ? a : MAP(a, indent);
- };
-
- function make_switch_block(body) {
- var n = body.length;
- if (n == 0) return "{}";
- return "{" + newline + MAP(body, function(branch, i){
- var has_body = branch[1].length > 0, code = with_indent(function(){
- return indent(branch[0]
- ? add_spaces([ "case", make(branch[0]) + ":" ])
- : "default:");
- }, 0.5) + (has_body ? newline + with_indent(function(){
- return make_block_statements(branch[1]).join(newline);
- }) : "");
- if (!beautify && has_body && i < n - 1)
- code += ";";
- return code;
- }).join(newline) + newline + indent("}");
- };
-
- function make_block(statements) {
- if (!statements) return ";";
- if (statements.length == 0) return "{}";
- return "{" + newline + with_indent(function(){
- return make_block_statements(statements).join(newline);
- }) + newline + indent("}");
- };
-
- function make_1vardef(def) {
- var name = def[0], val = def[1];
- if (val != null)
- name = add_spaces([ make_name(name), "=", parenthesize(val, "seq") ]);
- return name;
- };
-
- var $stack = [];
-
- function make(node) {
- var type = node[0];
- var gen = generators[type];
- if (!gen)
- throw new Error("Can't find generator for \"" + type + "\"");
- $stack.push(node);
- var ret = gen.apply(type, node.slice(1));
- $stack.pop();
- return ret;
- };
-
- return make(ast);
-};
-
-/* -----[ Utilities ]----- */
-
-function repeat_string(str, i) {
- return i < 1 ? "" : new Array(i + 1).join(str);
-};
-
-function defaults(args, defs) {
- var ret = {};
- if (args === true)
- args = {};
- for (var i in defs) if (HOP(defs, i)) {
- ret[i] = (args && HOP(args, i)) ? args[i] : defs[i];
- }
- return ret;
-};
-
-function is_identifier(name) {
- return /^[a-z_$][a-z0-9_$]*$/i.test(name)
- && name != "this"
- && !HOP(KEYWORDS_ATOM, name)
- && !HOP(RESERVED_WORDS, name)
- && !HOP(KEYWORDS, name);
-};
-
-function MAP(a, f, o) {
- var ret = [];
- for (var i = 0; i < a.length; ++i) {
- ret.push(f.call(o, a[i], i));
- }
- return ret;
-};
-
-/* -----[ Exports ]----- */
-
-return {
- parse: parse,
- gen_code: gen_code,
- tokenizer: tokenizer,
- ast_walker: ast_walker
-};
-
-};
diff --git a/lib/parse-js.js b/lib/parse-js.js
deleted file mode 100644
index 749b715b..00000000
--- a/lib/parse-js.js
+++ /dev/null
@@ -1,1916 +0,0 @@
-/**
- * A JavaScript tokenizer / parser / generator, originally written in Lisp.
- * Copyright (c) Marijn Haverbeke
- * http://marijn.haverbeke.nl/parse-js/
- *
- * Ported by to JavaScript by Mihai Bazon
- * Copyright (c) 2010, Mihai Bazon
- * http://mihai.bazon.net/blog/
- *
- * Modifications and adaptions to browser (c) 2011, Juerg Lehni
- * http://lehni.org/
- *
- * Distributed under the BSD license.
- */
-
-var parse_js = new function() {
-
-/* -----[ Tokenizer (constants) ]----- */
-
-var KEYWORDS = array_to_hash([
- "break",
- "case",
- "catch",
- "const",
- "continue",
- "default",
- "delete",
- "do",
- "else",
- "finally",
- "for",
- "function",
- "if",
- "in",
- "instanceof",
- "new",
- "return",
- "switch",
- "throw",
- "try",
- "typeof",
- "var",
- "void",
- "while",
- "with"
-]);
-
-var RESERVED_WORDS = array_to_hash([
- "abstract",
- "boolean",
- "byte",
- "char",
- "class",
- "debugger",
- "double",
- "enum",
- "export",
- "extends",
- "final",
- "float",
- "goto",
- "implements",
- "import",
- "int",
- "interface",
- "long",
- "native",
- "package",
- "private",
- "protected",
- "public",
- "short",
- "static",
- "super",
- "synchronized",
- "throws",
- "transient",
- "volatile"
-]);
-
-var KEYWORDS_BEFORE_EXPRESSION = array_to_hash([
- "return",
- "new",
- "delete",
- "throw",
- "else",
- "case"
-]);
-
-var KEYWORDS_ATOM = array_to_hash([
- "false",
- "null",
- "true",
- "undefined"
-]);
-
-var OPERATOR_CHARS = array_to_hash(characters("+-*&%=<>!?|~^"));
-
-var RE_HEX_NUMBER = /^0x[0-9a-f]+$/i;
-var RE_OCT_NUMBER = /^0[0-7]+$/;
-var RE_DEC_NUMBER = /^\d*\.?\d*(?:e[+-]?\d*(?:\d\.?|\.?\d)\d*)?$/i;
-
-var OPERATORS = array_to_hash([
- "in",
- "instanceof",
- "typeof",
- "new",
- "void",
- "delete",
- "++",
- "--",
- "+",
- "-",
- "!",
- "~",
- "&",
- "|",
- "^",
- "*",
- "/",
- "%",
- ">>",
- "<<",
- ">>>",
- "<",
- ">",
- "<=",
- ">=",
- "==",
- "===",
- "!=",
- "!==",
- "?",
- "=",
- "+=",
- "-=",
- "/=",
- "*=",
- "%=",
- ">>=",
- "<<=",
- ">>>=",
- "|=",
- "^=",
- "&=",
- "&&",
- "||"
-]);
-
-var WHITESPACE_CHARS = array_to_hash(characters(" \n\r\t"));
-
-var PUNC_BEFORE_EXPRESSION = array_to_hash(characters("[{}(,.;:"));
-
-var PUNC_CHARS = array_to_hash(characters("[]{}(),;:"));
-
-var REGEXP_MODIFIERS = array_to_hash(characters("gmsiy"));
-
-/* -----[ Tokenizer ]----- */
-
-function is_letter(ch) {
- ch = ch.charCodeAt(0);
- return (ch >= 65 && ch <= 90) ||
- (ch >= 97 && ch <= 122);
-};
-
-function is_digit(ch) {
- ch = ch.charCodeAt(0);
- return ch >= 48 && ch <= 57;
-};
-
-function is_alphanumeric_char(ch) {
- return is_digit(ch) || is_letter(ch);
-};
-
-function is_identifier_start(ch) {
- return ch == "$" || ch == "_" || is_letter(ch);
-};
-
-function is_identifier_char(ch) {
- return is_identifier_start(ch) || is_digit(ch);
-};
-
-function parse_js_number(num) {
- if (RE_HEX_NUMBER.test(num)) {
- return parseInt(num.substr(2), 16);
- } else if (RE_OCT_NUMBER.test(num)) {
- return parseInt(num.substr(1), 8);
- } else if (RE_DEC_NUMBER.test(num)) {
- return parseFloat(num);
- }
-};
-
-function JS_Parse_Error(message, line, col, pos) {
- this.message = message;
- this.line = line;
- this.col = col;
- this.pos = pos;
-};
-
-JS_Parse_Error.prototype.toString = function() {
- return this.message + " (line: " + this.line + ", col: " + this.col + ", pos: " + this.pos + ")";
-};
-
-function js_error(message, line, col, pos) {
- throw new JS_Parse_Error(message, line, col, pos);
-};
-
-function is_token(token, type, val) {
- return token.type == type && (val == null || token.value == val);
-};
-
-var EX_EOF = {};
-
-function tokenizer($TEXT) {
-
- var S = {
- text : $TEXT.replace(/\r\n?|[\n\u2028\u2029]/g, "\n").replace(/^\uFEFF/, ''),
- pos : 0,
- tokpos : 0,
- line : 0,
- tokline : 0,
- col : 0,
- tokcol : 0,
- newline_before : false,
- regex_allowed : false,
- comments_before : []
- };
-
- function peek() { return S.text.charAt(S.pos); };
-
- function next(signal_eof) {
- var ch = S.text.charAt(S.pos++);
- if (signal_eof && !ch)
- throw EX_EOF;
- if (ch == "\n") {
- S.newline_before = true;
- ++S.line;
- S.col = 0;
- } else {
- ++S.col;
- }
- return ch;
- };
-
- function eof() {
- return !S.peek();
- };
-
- function find(what, signal_eof) {
- var pos = S.text.indexOf(what, S.pos);
- if (signal_eof && pos == -1) throw EX_EOF;
- return pos;
- };
-
- function start_token() {
- S.tokline = S.line;
- S.tokcol = S.col;
- S.tokpos = S.pos;
- };
-
- function token(type, value, is_comment) {
- S.regex_allowed = ((type == "operator" && !HOP(UNARY_POSTFIX, value)) ||
- (type == "keyword" && HOP(KEYWORDS_BEFORE_EXPRESSION, value)) ||
- (type == "punc" && HOP(PUNC_BEFORE_EXPRESSION, value)));
- var ret = {
- type : type,
- value : value,
- line : S.tokline,
- col : S.tokcol,
- pos : S.tokpos,
- nlb : S.newline_before
- };
- if (!is_comment) {
- ret.comments_before = S.comments_before;
- S.comments_before = [];
- }
- S.newline_before = false;
- return ret;
- };
-
- function skip_whitespace() {
- while (HOP(WHITESPACE_CHARS, peek()))
- next();
- };
-
- function read_while(pred) {
- var ret = "", ch = peek(), i = 0;
- while (ch && pred(ch, i++)) {
- ret += next();
- ch = peek();
- }
- return ret;
- };
-
- function parse_error(err) {
- js_error(err, S.tokline, S.tokcol, S.tokpos);
- };
-
- function read_num(prefix) {
- var has_e = false, after_e = false, has_x = false, has_dot = prefix == ".";
- var num = read_while(function(ch, i){
- if (ch == "x" || ch == "X") {
- if (has_x) return false;
- return has_x = true;
- }
- if (!has_x && (ch == "E" || ch == "e")) {
- if (has_e) return false;
- return has_e = after_e = true;
- }
- if (ch == "-") {
- if (after_e || (i == 0 && !prefix)) return true;
- return false;
- }
- if (ch == "+") return after_e;
- after_e = false;
- if (ch == ".") {
- if (!has_dot && !has_x)
- return has_dot = true;
- return false;
- }
- return is_alphanumeric_char(ch);
- });
- if (prefix)
- num = prefix + num;
- var valid = parse_js_number(num);
- if (!isNaN(valid)) {
- return token("num", valid);
- } else {
- parse_error("Invalid syntax: " + num);
- }
- };
-
- function read_escaped_char() {
- var ch = next(true);
- switch (ch) {
- case "n" : return "\n";
- case "r" : return "\r";
- case "t" : return "\t";
- case "b" : return "\b";
- case "v" : return "\v";
- case "f" : return "\f";
- case "0" : return "\0";
- case "x" : return String.fromCharCode(hex_bytes(2));
- case "u" : return String.fromCharCode(hex_bytes(4));
- case "\n": return "";
- default : return ch;
- }
- };
-
- function hex_bytes(n) {
- var num = 0;
- for (; n > 0; --n) {
- var digit = parseInt(next(true), 16);
- if (isNaN(digit))
- parse_error("Invalid hex-character pattern in string");
- num = (num << 4) | digit;
- }
- return num;
- };
-
- function read_string() {
- return with_eof_error("Unterminated string constant", function(){
- var quote = next(), ret = "";
- for (;;) {
- var ch = next(true);
- if (ch == "\\") ch = read_escaped_char();
- else if (ch == quote) break;
- ret += ch;
- }
- return token("string", ret);
- });
- };
-
- function read_line_comment() {
- next();
- var i = find("\n"), ret;
- if (i == -1) {
- ret = S.text.substr(S.pos);
- S.pos = S.text.length;
- } else {
- ret = S.text.substring(S.pos, i);
- S.pos = i;
- }
- return token("comment1", ret, true);
- };
-
- function read_multiline_comment() {
- next();
- return with_eof_error("Unterminated multiline comment", function(){
- var i = find("*/", true),
- text = S.text.substring(S.pos, i),
- tok = token("comment2", text, true);
- S.pos = i + 2;
- S.line += text.split("\n").length - 1;
- S.newline_before = text.indexOf("\n") >= 0;
- return tok;
- });
- };
-
- function read_regexp() {
- return with_eof_error("Unterminated regular expression", function(){
- var prev_backslash = false, regexp = "", ch, in_class = false;
- while ((ch = next(true))) if (prev_backslash) {
- regexp += "\\" + ch;
- prev_backslash = false;
- } else if (ch == "[") {
- in_class = true;
- regexp += ch;
- } else if (ch == "]" && in_class) {
- in_class = false;
- regexp += ch;
- } else if (ch == "/" && !in_class) {
- break;
- } else if (ch == "\\") {
- prev_backslash = true;
- } else {
- regexp += ch;
- }
- var mods = read_while(function(ch){
- return HOP(REGEXP_MODIFIERS, ch);
- });
- return token("regexp", [ regexp, mods ]);
- });
- };
-
- function read_operator(prefix) {
- function grow(op) {
- if (!peek()) return op;
- var bigger = op + peek();
- if (HOP(OPERATORS, bigger)) {
- next();
- return grow(bigger);
- } else {
- return op;
- }
- };
- return token("operator", grow(prefix || next()));
- };
-
- function handle_slash() {
- next();
- var regex_allowed = S.regex_allowed;
- switch (peek()) {
- case "/":
- S.comments_before.push(read_line_comment());
- S.regex_allowed = regex_allowed;
- return next_token();
- case "*":
- S.comments_before.push(read_multiline_comment());
- S.regex_allowed = regex_allowed;
- return next_token();
- }
- return S.regex_allowed ? read_regexp() : read_operator("/");
- };
-
- function handle_dot() {
- next();
- return is_digit(peek())
- ? read_num(".")
- : token("punc", ".");
- };
-
- function read_word() {
- var word = read_while(is_identifier_char);
- return !HOP(KEYWORDS, word)
- ? token("name", word)
- : HOP(OPERATORS, word)
- ? token("operator", word)
- : HOP(KEYWORDS_ATOM, word)
- ? token("atom", word)
- : token("keyword", word);
- };
-
- function with_eof_error(eof_error, cont) {
- try {
- return cont();
- } catch(ex) {
- if (ex === EX_EOF) parse_error(eof_error);
- else throw ex;
- }
- };
-
- function next_token(force_regexp) {
- if (force_regexp)
- return read_regexp();
- skip_whitespace();
- start_token();
- var ch = peek();
- if (!ch) return token("eof");
- if (is_digit(ch)) return read_num();
- if (ch == '"' || ch == "'") return read_string();
- if (HOP(PUNC_CHARS, ch)) return token("punc", next());
- if (ch == ".") return handle_dot();
- if (ch == "/") return handle_slash();
- if (HOP(OPERATOR_CHARS, ch)) return read_operator();
- if (ch == "\\" || is_identifier_start(ch)) return read_word();
- parse_error("Unexpected character '" + ch + "'");
- };
-
- next_token.context = function(nc) {
- if (nc) S = nc;
- return S;
- };
-
- return next_token;
-
-};
-
-/* -----[ Parser (constants) ]----- */
-
-var UNARY_PREFIX = array_to_hash([
- "typeof",
- "void",
- "delete",
- "--",
- "++",
- "!",
- "~",
- "-",
- "+"
-]);
-
-var UNARY_POSTFIX = array_to_hash([ "--", "++" ]);
-
-var ASSIGNMENT = (function(a, ret, i){
- while (i < a.length) {
- ret[a[i]] = a[i].substr(0, a[i].length - 1);
- i++;
- }
- return ret;
-})(
- ["+=", "-=", "/=", "*=", "%=", ">>=", "<<=", ">>>=", "|=", "^=", "&="],
- { "=": true },
- 0
-);
-
-var PRECEDENCE = (function(a, ret){
- for (var i = 0, n = 1; i < a.length; ++i, ++n) {
- var b = a[i];
- for (var j = 0; j < b.length; ++j) {
- ret[b[j]] = n;
- }
- }
- return ret;
-})(
- [
- ["||"],
- ["&&"],
- ["|"],
- ["^"],
- ["&"],
- ["==", "===", "!=", "!=="],
- ["<", ">", "<=", ">=", "in", "instanceof"],
- [">>", "<<", ">>>"],
- ["+", "-"],
- ["*", "/", "%"]
- ],
- {}
-);
-
-var STATEMENTS_WITH_LABELS = array_to_hash([ "for", "do", "while", "switch" ]);
-
-var ATOMIC_START_TOKEN = array_to_hash([ "atom", "num", "string", "regexp", "name" ]);
-
-/* -----[ Parser ]----- */
-
-function NodeWithToken(str, start, end) {
- this.name = str;
- this.start = start;
- this.end = end;
-};
-
-NodeWithToken.prototype.toString = function() { return this.name; };
-
-function parse($TEXT, exigent_mode, embed_tokens) {
-
- var S = {
- input : typeof $TEXT == "string" ? tokenizer($TEXT, true) : $TEXT,
- token : null,
- prev : null,
- peeked : null,
- in_function : 0,
- in_loop : 0,
- labels : []
- };
-
- S.token = next();
-
- function is(type, value) {
- return is_token(S.token, type, value);
- };
-
- function peek() { return S.peeked || (S.peeked = S.input()); };
-
- function next() {
- S.prev = S.token;
- if (S.peeked) {
- S.token = S.peeked;
- S.peeked = null;
- } else {
- S.token = S.input();
- }
- return S.token;
- };
-
- function prev() {
- return S.prev;
- };
-
- function croak(msg, line, col, pos) {
- var ctx = S.input.context();
- js_error(msg,
- line != null ? line : ctx.tokline,
- col != null ? col : ctx.tokcol,
- pos != null ? pos : ctx.tokpos);
- };
-
- function token_error(token, msg) {
- croak(msg, token.line, token.col);
- };
-
- function unexpected(token) {
- if (token == null)
- token = S.token;
- token_error(token, "Unexpected token: " + token.type + " (" + token.value + ")");
- };
-
- function expect_token(type, val) {
- if (is(type, val)) {
- return next();
- }
- token_error(S.token, "Unexpected token " + S.token.type + ", expected " + type);
- };
-
- function expect(punc) { return expect_token("punc", punc); };
-
- function can_insert_semicolon() {
- return !exigent_mode && (
- S.token.nlb || is("eof") || is("punc", "}")
- );
- };
-
- function semicolon() {
- if (is("punc", ";")) next();
- else if (!can_insert_semicolon()) unexpected();
- };
-
- function as() {
- return slice(arguments);
- };
-
- function parenthesised() {
- expect("(");
- var ex = expression();
- expect(")");
- return ex;
- };
-
- function add_tokens(str, start, end) {
- return str instanceof NodeWithToken ? str : new NodeWithToken(str, start, end);
- };
-
- function maybe_embed_tokens(parser) {
- if (embed_tokens) return function() {
- var start = S.token;
- var ast = parser.apply(this, arguments);
- ast[0] = add_tokens(ast[0], start, prev());
- return ast;
- };
- else return parser;
- };
-
- var statement = maybe_embed_tokens(function() {
- if (is("operator", "/")) {
- S.peeked = null;
- S.token = S.input(true); // force regexp
- }
- switch (S.token.type) {
- case "num":
- case "string":
- case "regexp":
- case "operator":
- case "atom":
- return simple_statement();
-
- case "name":
- return is_token(peek(), "punc", ":")
- ? labeled_statement(prog1(S.token.value, next, next))
- : simple_statement();
-
- case "punc":
- switch (S.token.value) {
- case "{":
- return as("block", block_());
- case "[":
- case "(":
- return simple_statement();
- case ";":
- next();
- return as("block");
- default:
- unexpected();
- }
-
- case "keyword":
- switch (prog1(S.token.value, next)) {
- case "break":
- return break_cont("break");
-
- case "continue":
- return break_cont("continue");
-
- case "debugger":
- semicolon();
- return as("debugger");
-
- case "do":
- return (function(body){
- expect_token("keyword", "while");
- return as("do", prog1(parenthesised, semicolon), body);
- })(in_loop(statement));
-
- case "for":
- return for_();
-
- case "function":
- return function_(true);
-
- case "if":
- return if_();
-
- case "return":
- if (S.in_function == 0)
- croak("'return' outside of function");
- return as("return",
- is("punc", ";")
- ? (next(), null)
- : can_insert_semicolon()
- ? null
- : prog1(expression, semicolon));
-
- case "switch":
- return as("switch", parenthesised(), switch_block_());
-
- case "throw":
- return as("throw", prog1(expression, semicolon));
-
- case "try":
- return try_();
-
- case "var":
- return prog1(var_, semicolon);
-
- case "const":
- return prog1(const_, semicolon);
-
- case "while":
- return as("while", parenthesised(), in_loop(statement));
-
- case "with":
- return as("with", parenthesised(), statement());
-
- default:
- unexpected();
- }
- }
- });
-
- function labeled_statement(label) {
- S.labels.push(label);
- var start = S.token, stat = statement();
- if (exigent_mode && !HOP(STATEMENTS_WITH_LABELS, stat[0]))
- unexpected(start);
- S.labels.pop();
- return as("label", label, stat);
- };
-
- function simple_statement() {
- return as("stat", prog1(expression, semicolon));
- };
-
- function break_cont(type) {
- var name;
- if (!can_insert_semicolon()) {
- name = is("name") ? S.token.value : null;
- }
- if (name != null) {
- next();
- if (!member(name, S.labels))
- croak("Label " + name + " without matching loop or statement");
- }
- else if (S.in_loop == 0)
- croak(type + " not inside a loop or switch");
- semicolon();
- return as(type, name);
- };
-
- function for_() {
- expect("(");
- var init = null;
- if (!is("punc", ";")) {
- init = is("keyword", "var")
- ? (next(), var_(true))
- : expression(true, true);
- if (is("operator", "in"))
- return for_in(init);
- }
- return regular_for(init);
- };
-
- function regular_for(init) {
- expect(";");
- var test = is("punc", ";") ? null : expression();
- expect(";");
- var step = is("punc", ")") ? null : expression();
- expect(")");
- return as("for", init, test, step, in_loop(statement));
- };
-
- function for_in(init) {
- var lhs = init[0] == "var" ? as("name", init[1][0]) : init;
- next();
- var obj = expression();
- expect(")");
- return as("for-in", init, lhs, obj, in_loop(statement));
- };
-
- var function_ = maybe_embed_tokens(function(in_statement) {
- var name = is("name") ? prog1(S.token.value, next) : null;
- if (in_statement && !name)
- unexpected();
- expect("(");
- return as(in_statement ? "defun" : "function",
- name,
- // arguments
- (function(first, a){
- while (!is("punc", ")")) {
- if (first) first = false; else expect(",");
- if (!is("name")) unexpected();
- a.push(S.token.value);
- next();
- }
- next();
- return a;
- })(true, []),
- // body
- (function(){
- ++S.in_function;
- var loop = S.in_loop;
- S.in_loop = 0;
- var a = block_();
- --S.in_function;
- S.in_loop = loop;
- return a;
- })());
- });
-
- function if_() {
- var cond = parenthesised(), body = statement(), belse;
- if (is("keyword", "else")) {
- next();
- belse = statement();
- }
- return as("if", cond, body, belse);
- };
-
- function block_() {
- expect("{");
- var a = [];
- while (!is("punc", "}")) {
- if (is("eof")) unexpected();
- a.push(statement());
- }
- next();
- return a;
- };
-
- var switch_block_ = curry(in_loop, function(){
- expect("{");
- var a = [], cur = null;
- while (!is("punc", "}")) {
- if (is("eof")) unexpected();
- if (is("keyword", "case")) {
- next();
- cur = [];
- a.push([ expression(), cur ]);
- expect(":");
- }
- else if (is("keyword", "default")) {
- next();
- expect(":");
- cur = [];
- a.push([ null, cur ]);
- }
- else {
- if (!cur) unexpected();
- cur.push(statement());
- }
- }
- next();
- return a;
- });
-
- function try_() {
- var body = block_(), bcatch, bfinally;
- if (is("keyword", "catch")) {
- next();
- expect("(");
- if (!is("name"))
- croak("Name expected");
- var name = S.token.value;
- next();
- expect(")");
- bcatch = [ name, block_() ];
- }
- if (is("keyword", "finally")) {
- next();
- bfinally = block_();
- }
- if (!bcatch && !bfinally)
- croak("Missing catch/finally blocks");
- return as("try", body, bcatch, bfinally);
- };
-
- function vardefs(no_in) {
- var a = [];
- for (;;) {
- if (!is("name"))
- unexpected();
- var name = S.token.value;
- next();
- if (is("operator", "=")) {
- next();
- a.push([ name, expression(false, no_in) ]);
- } else {
- a.push([ name ]);
- }
- if (!is("punc", ","))
- break;
- next();
- }
- return a;
- };
-
- function var_(no_in) {
- return as("var", vardefs(no_in));
- };
-
- function const_() {
- return as("const", vardefs());
- };
-
- function new_() {
- var newexp = expr_atom(false), args;
- if (is("punc", "(")) {
- next();
- args = expr_list(")");
- } else {
- args = [];
- }
- return subscripts(as("new", newexp, args), true);
- };
-
- var expr_atom = maybe_embed_tokens(function(allow_calls) {
- if (is("operator", "new")) {
- next();
- return new_();
- }
- if (is("operator") && HOP(UNARY_PREFIX, S.token.value)) {
- return make_unary("unary-prefix",
- prog1(S.token.value, next),
- expr_atom(allow_calls));
- }
- if (is("punc")) {
- switch (S.token.value) {
- case "(":
- next();
- return subscripts(prog1(expression, curry(expect, ")")), allow_calls);
- case "[":
- next();
- return subscripts(array_(), allow_calls);
- case "{":
- next();
- return subscripts(object_(), allow_calls);
- }
- unexpected();
- }
- if (is("keyword", "function")) {
- next();
- return subscripts(function_(false), allow_calls);
- }
- if (HOP(ATOMIC_START_TOKEN, S.token.type)) {
- var atom = S.token.type == "regexp"
- ? as("regexp", S.token.value[0], S.token.value[1])
- : as(S.token.type, S.token.value);
- return subscripts(prog1(atom, next), allow_calls);
- }
- unexpected();
- });
-
- function expr_list(closing, allow_trailing_comma, allow_empty) {
- var first = true, a = [];
- while (!is("punc", closing)) {
- if (first) first = false; else expect(",");
- if (allow_trailing_comma && is("punc", closing)) break;
- if (is("punc", ",") && allow_empty) {
- a.push([ "atom", "undefined" ]);
- } else {
- a.push(expression(false));
- }
- }
- next();
- return a;
- };
-
- function array_() {
- return as("array", expr_list("]", !exigent_mode, true));
- };
-
- function object_() {
- var first = true, a = [];
- while (!is("punc", "}")) {
- if (first) first = false; else expect(",");
- if (!exigent_mode && is("punc", "}"))
- // allow trailing comma
- break;
- var type = S.token.type;
- var name = as_property_name();
- if (type == "name" && (name == "get" || name == "set") && !is("punc", ":")) {
- a.push([ as_name(), function_(false), name ]);
- } else {
- expect(":");
- a.push([ name, expression(false) ]);
- }
- }
- next();
- return as("object", a);
- };
-
- function as_property_name() {
- switch (S.token.type) {
- case "num":
- case "string":
- return prog1(S.token.value, next);
- }
- return as_name();
- };
-
- function as_name() {
- switch (S.token.type) {
- case "name":
- case "operator":
- case "keyword":
- case "atom":
- return prog1(S.token.value, next);
- default:
- unexpected();
- }
- };
-
- function subscripts(expr, allow_calls) {
- if (is("punc", ".")) {
- next();
- return subscripts(as("dot", expr, as_name()), allow_calls);
- }
- if (is("punc", "[")) {
- next();
- return subscripts(as("sub", expr, prog1(expression, curry(expect, "]"))), allow_calls);
- }
- if (allow_calls && is("punc", "(")) {
- next();
- return subscripts(as("call", expr, expr_list(")")), true);
- }
- if (allow_calls && is("operator") && HOP(UNARY_POSTFIX, S.token.value)) {
- return prog1(curry(make_unary, "unary-postfix", S.token.value, expr),
- next);
- }
- return expr;
- };
-
- function make_unary(tag, op, expr) {
- if ((op == "++" || op == "--") && !is_assignable(expr))
- croak("Invalid use of " + op + " operator");
- return as(tag, op, expr);
- };
-
- function expr_op(left, min_prec, no_in) {
- var op = is("operator") ? S.token.value : null;
- if (op && op == "in" && no_in) op = null;
- var prec = op != null ? PRECEDENCE[op] : null;
- if (prec != null && prec > min_prec) {
- next();
- var right = expr_op(expr_atom(true), prec, no_in);
- return expr_op(as("binary", op, left, right), min_prec, no_in);
- }
- return left;
- };
-
- function expr_ops(no_in) {
- return expr_op(expr_atom(true), 0, no_in);
- };
-
- function maybe_conditional(no_in) {
- var expr = expr_ops(no_in);
- if (is("operator", "?")) {
- next();
- var yes = expression(false);
- expect(":");
- return as("conditional", expr, yes, expression(false, no_in));
- }
- return expr;
- };
-
- function is_assignable(expr) {
- if (!exigent_mode) return true;
- switch (expr[0]) {
- case "dot":
- case "sub":
- case "new":
- case "call":
- return true;
- case "name":
- return expr[1] != "this";
- }
- };
-
- function maybe_assign(no_in) {
- var left = maybe_conditional(no_in), val = S.token.value;
- if (is("operator") && HOP(ASSIGNMENT, val)) {
- if (is_assignable(left)) {
- next();
- return as("assign", ASSIGNMENT[val], left, maybe_assign(no_in));
- }
- croak("Invalid assignment");
- }
- return left;
- };
-
- var expression = maybe_embed_tokens(function(commas, no_in) {
- if (arguments.length == 0)
- commas = true;
- var expr = maybe_assign(no_in);
- if (commas && is("punc", ",")) {
- next();
- return as("seq", expr, expression(true, no_in));
- }
- return expr;
- });
-
- function in_loop(cont) {
- try {
- ++S.in_loop;
- return cont();
- } finally {
- --S.in_loop;
- }
- };
-
- return as("toplevel", (function(a){
- while (!is("eof"))
- a.push(statement());
- return a;
- })([]));
-
-};
-
-/* -----[ Utilities ]----- */
-
-function curry(f) {
- var args = slice(arguments, 1);
- return function() { return f.apply(this, args.concat(slice(arguments))); };
-};
-
-function prog1(ret) {
- if (ret instanceof Function)
- ret = ret();
- for (var i = 1, n = arguments.length; --n > 0; ++i)
- arguments[i]();
- return ret;
-};
-
-function array_to_hash(a) {
- var ret = {};
- for (var i = 0; i < a.length; ++i)
- ret[a[i]] = true;
- return ret;
-};
-
-function slice(a, start) {
- return Array.prototype.slice.call(a, start || 0);
-};
-
-function characters(str) {
- return str.split("");
-};
-
-function member(name, array) {
- for (var i = array.length; --i >= 0;)
- if (array[i] === name)
- return true;
- return false;
-};
-
-function HOP(obj, prop) {
- return Object.prototype.hasOwnProperty.call(obj, prop);
-};
-
-/* -----[ helper for AST traversal ]----- */
-
-function ast_walker() {
- function _vardefs(defs) {
- return [ this[0], MAP(defs, function(def){
- var a = [ def[0] ];
- if (def.length > 1)
- a[1] = walk(def[1]);
- return a;
- }) ];
- };
- function _block(statements) {
- var out = [ this[0] ];
- if (statements != null)
- out.push(MAP(statements, walk));
- return out;
- };
- var walkers = {
- "string": function(str) {
- return [ this[0], str ];
- },
- "num": function(num) {
- return [ this[0], num ];
- },
- "name": function(name) {
- return [ this[0], name ];
- },
- "toplevel": function(statements) {
- return [ this[0], MAP(statements, walk) ];
- },
- "block": _block,
- "splice": _block,
- "var": _vardefs,
- "const": _vardefs,
- "try": function(t, c, f) {
- return [
- this[0],
- MAP(t, walk),
- c != null ? [ c[0], MAP(c[1], walk) ] : null,
- f != null ? MAP(f, walk) : null
- ];
- },
- "throw": function(expr) {
- return [ this[0], walk(expr) ];
- },
- "new": function(ctor, args) {
- return [ this[0], walk(ctor), MAP(args, walk) ];
- },
- "switch": function(expr, body) {
- return [ this[0], walk(expr), MAP(body, function(branch){
- return [ branch[0] ? walk(branch[0]) : null,
- MAP(branch[1], walk) ];
- }) ];
- },
- "break": function(label) {
- return [ this[0], label ];
- },
- "continue": function(label) {
- return [ this[0], label ];
- },
- "conditional": function(cond, t, e) {
- return [ this[0], walk(cond), walk(t), walk(e) ];
- },
- "assign": function(op, lvalue, rvalue) {
- return [ this[0], op, walk(lvalue), walk(rvalue) ];
- },
- "dot": function(expr) {
- return [ this[0], walk(expr) ].concat(slice(arguments, 1));
- },
- "call": function(expr, args) {
- return [ this[0], walk(expr), MAP(args, walk) ];
- },
- "function": function(name, args, body) {
- return [ this[0], name, args.slice(), MAP(body, walk) ];
- },
- "defun": function(name, args, body) {
- return [ this[0], name, args.slice(), MAP(body, walk) ];
- },
- "if": function(conditional, t, e) {
- return [ this[0], walk(conditional), walk(t), walk(e) ];
- },
- "for": function(init, cond, step, block) {
- return [ this[0], walk(init), walk(cond), walk(step), walk(block) ];
- },
- "for-in": function(vvar, key, hash, block) {
- return [ this[0], walk(vvar), walk(key), walk(hash), walk(block) ];
- },
- "while": function(cond, block) {
- return [ this[0], walk(cond), walk(block) ];
- },
- "do": function(cond, block) {
- return [ this[0], walk(cond), walk(block) ];
- },
- "return": function(expr) {
- return [ this[0], walk(expr) ];
- },
- "binary": function(op, left, right) {
- return [ this[0], op, walk(left), walk(right) ];
- },
- "unary-prefix": function(op, expr) {
- return [ this[0], op, walk(expr) ];
- },
- "unary-postfix": function(op, expr) {
- return [ this[0], op, walk(expr) ];
- },
- "sub": function(expr, subscript) {
- return [ this[0], walk(expr), walk(subscript) ];
- },
- "object": function(props) {
- return [ this[0], MAP(props, function(p){
- return p.length == 2
- ? [ p[0], walk(p[1]) ]
- : [ p[0], walk(p[1]), p[2] ]; // get/set-ter
- }) ];
- },
- "regexp": function(rx, mods) {
- return [ this[0], rx, mods ];
- },
- "array": function(elements) {
- return [ this[0], MAP(elements, walk) ];
- },
- "stat": function(stat) {
- return [ this[0], walk(stat) ];
- },
- "seq": function() {
- return [ this[0] ].concat(MAP(slice(arguments), walk));
- },
- "label": function(name, block) {
- return [ this[0], name, walk(block) ];
- },
- "with": function(expr, block) {
- return [ this[0], walk(expr), walk(block) ];
- },
- "atom": function(name) {
- return [ this[0], name ];
- }
- };
-
- var user = {};
- var stack = [];
- function walk(ast) {
- if (ast == null)
- return null;
- try {
- stack.push(ast);
- var type = ast[0];
- var gen = user[type];
- if (gen) {
- var ret = gen.apply(ast, ast.slice(1));
- if (ret != null)
- return ret;
- }
- gen = walkers[type];
- return gen.apply(ast, ast.slice(1));
- } finally {
- stack.pop();
- }
- };
-
- function with_walkers(walkers, cont){
- var save = {}, i;
- for (i in walkers) if (HOP(walkers, i)) {
- save[i] = user[i];
- user[i] = walkers[i];
- }
- var ret = cont();
- for (i in save) if (HOP(save, i)) {
- if (!save[i]) delete user[i];
- else user[i] = save[i];
- }
- return ret;
- };
-
- return {
- walk: walk,
- with_walkers: with_walkers,
- parent: function() {
- return stack[stack.length - 2]; // last one is current node
- },
- stack: function() {
- return stack;
- }
- };
-};
-
-function empty(b) {
- return !b || (b[0] == "block" && (!b[1] || b[1].length == 0));
-};
-
-/* -----[ re-generate code from the AST ]----- */
-
-var DOT_CALL_NO_PARENS = array_to_hash([
- "name",
- "array",
- "object",
- "string",
- "dot",
- "sub",
- "call",
- "regexp"
-]);
-
-function make_string(str) {
- var dq = 0, sq = 0;
- str = str.replace(/[\\\b\f\n\r\t\x22\x27]/g, function(s){
- switch (s) {
- case "\\": return "\\\\";
- case "\b": return "\\b";
- case "\f": return "\\f";
- case "\n": return "\\n";
- case "\r": return "\\r";
- case "\t": return "\\t";
- case '"': ++dq; return '"';
- case "'": ++sq; return "'";
- }
- return s;
- });
- if (dq > sq) return "'" + str.replace(/\x27/g, "\\'") + "'";
- else return '"' + str.replace(/\x22/g, '\\"') + '"';
-};
-
-var SPLICE_NEEDS_BRACKETS = array_to_hash([ "if", "while", "do", "for", "for-in", "with" ]);
-
-function gen_code(ast, options) {
- options = defaults(options, {
- indent_start : 0,
- indent_level : 4,
- quote_keys : false,
- space_colon : false,
- beautify : false
- });
- var beautify = !!options.beautify;
- var indentation = 0,
- newline = beautify ? "\n" : "",
- space = beautify ? " " : "";
-
- function make_name(name) {
- return name.toString();
- };
-
- function indent(line) {
- if (line == null)
- line = "";
- if (beautify)
- line = repeat_string(" ", options.indent_start + indentation * options.indent_level) + line;
- return line;
- };
-
- function with_indent(cont, incr) {
- if (incr == null) incr = 1;
- indentation += incr;
- try { return cont.apply(null, slice(arguments, 1)); }
- finally { indentation -= incr; }
- };
-
- function add_spaces(a) {
- if (beautify)
- return a.join(" ");
- var b = [];
- for (var i = 0; i < a.length; ++i) {
- var next = a[i + 1];
- b.push(a[i]);
- if (next &&
- ((/[a-z0-9_\x24]$/i.test(a[i].toString()) && /^[a-z0-9_\x24]/i.test(next.toString())) ||
- (/[\+\-]$/.test(a[i].toString()) && /^[\+\-]/.test(next.toString())))) {
- b.push(" ");
- }
- }
- return b.join("");
- };
-
- function add_commas(a) {
- return a.join("," + space);
- };
-
- function parenthesize(expr) {
- var gen = make(expr);
- for (var i = 1; i < arguments.length; ++i) {
- var el = arguments[i];
- if ((el instanceof Function && el(expr)) || expr[0] == el)
- return "(" + gen + ")";
- }
- return gen;
- };
-
- function best_of(a) {
- if (a.length == 1) {
- return a[0];
- }
- if (a.length == 2) {
- var b = a[1];
- a = a[0];
- return a.length <= b.length ? a : b;
- }
- return best_of([ a[0], best_of(a.slice(1)) ]);
- };
-
- function needs_parens(expr) {
- if (expr[0] == "function" || expr[0] == "object") {
- // dot/call on a literal function requires the
- // function literal itself to be parenthesized
- // only if it's the first "thing" in a
- // statement. This means that the parent is
- // "stat", but it could also be a "seq" and
- // we're the first in this "seq" and the
- // parent is "stat", and so on. Messy stuff,
- // but it worths the trouble.
- var a = slice($stack), self = a.pop(), p = a.pop();
- while (p) {
- if (p[0] == "stat") return true;
- if (((p[0] == "seq" || p[0] == "call" || p[0] == "dot" || p[0] == "sub" || p[0] == "conditional") && p[1] === self) ||
- ((p[0] == "binary" || p[0] == "assign" || p[0] == "unary-postfix") && p[2] === self)) {
- self = p;
- p = a.pop();
- } else {
- return false;
- }
- }
- }
- return !HOP(DOT_CALL_NO_PARENS, expr[0]);
- };
-
- function make_num(num) {
- var str = num.toString(10), a = [ str.replace(/^0\./, ".") ], m;
- if (Math.floor(num) === num) {
- a.push("0x" + num.toString(16).toLowerCase(), // probably pointless
- "0" + num.toString(8)); // same.
- if ((m = /^(.*?)(0+)$/.exec(num))) {
- a.push(m[1] + "e" + m[2].length);
- }
- } else if ((m = /^0?\.(0+)(.*)$/.exec(num))) {
- a.push(m[2] + "e-" + (m[1].length + m[2].length),
- str.substr(str.indexOf(".")));
- }
- return best_of(a);
- };
-
- var generators = {
- "string": make_string,
- "num": make_num,
- "name": make_name,
- "toplevel": function(statements) {
- return make_block_statements(statements)
- .join(newline);
- },
- "splice": function(statements) {
- var parent = $stack[$stack.length - 2][0];
- if (HOP(SPLICE_NEEDS_BRACKETS, parent)) {
- // we need block brackets in this case
- return make_block.apply(this, arguments);
- } else {
- return MAP(make_block_statements(statements, true),
- function(line, i) {
- // the first line is already indented
- return i > 0 ? indent(line) : line;
- }).join(newline);
- }
- },
- "block": make_block,
- "var": function(defs) {
- return "var " + add_commas(MAP(defs, make_1vardef)) + ";";
- },
- "const": function(defs) {
- return "const " + add_commas(MAP(defs, make_1vardef)) + ";";
- },
- "try": function(tr, ca, fi) {
- var out = [ "try", make_block(tr) ];
- if (ca) out.push("catch", "(" + ca[0] + ")", make_block(ca[1]));
- if (fi) out.push("finally", make_block(fi));
- return add_spaces(out);
- },
- "throw": function(expr) {
- return add_spaces([ "throw", make(expr) ]) + ";";
- },
- "new": function(ctor, args) {
- args = args.length > 0 ? "(" + add_commas(MAP(args, make)) + ")" : "";
- return add_spaces([ "new", parenthesize(ctor, "seq", "binary", "conditional", "assign", function(expr){
- var w = ast_walker(), has_call = {};
- try {
- w.with_walkers({
- "call": function() { throw has_call },
- "function": function() { return this }
- }, function(){
- w.walk(expr);
- });
- } catch(ex) {
- if (ex === has_call)
- return true;
- throw ex;
- }
- }) + args ]);
- },
- "switch": function(expr, body) {
- return add_spaces([ "switch", "(" + make(expr) + ")", make_switch_block(body) ]);
- },
- "break": function(label) {
- var out = "break";
- if (label != null)
- out += " " + make_name(label);
- return out + ";";
- },
- "continue": function(label) {
- var out = "continue";
- if (label != null)
- out += " " + make_name(label);
- return out + ";";
- },
- "conditional": function(co, th, el) {
- return add_spaces([ parenthesize(co, "assign", "seq", "conditional"), "?",
- parenthesize(th, "seq"), ":",
- parenthesize(el, "seq") ]);
- },
- "assign": function(op, lvalue, rvalue) {
- if (op && op !== true) op += "=";
- else op = "=";
- return add_spaces([ make(lvalue), op, parenthesize(rvalue, "seq") ]);
- },
- "dot": function(expr) {
- var out = make(expr), i = 1;
- if (expr[0] == "num") {
- if (!/\./.test(expr[1]))
- out += ".";
- } else if (needs_parens(expr))
- out = "(" + out + ")";
- while (i < arguments.length)
- out += "." + make_name(arguments[i++]);
- return out;
- },
- "call": function(func, args) {
- var f = make(func);
- if (needs_parens(func))
- f = "(" + f + ")";
- return f + "(" + add_commas(MAP(args, function(expr){
- return parenthesize(expr, "seq");
- })) + ")";
- },
- "function": make_function,
- "defun": make_function,
- "if": function(co, th, el) {
- var out = [ "if", "(" + make(co) + ")", el ? make_then(th) : make(th) ];
- if (el) {
- out.push("else", make(el));
- }
- return add_spaces(out);
- },
- "for": function(init, cond, step, block) {
- var out = [ "for" ];
- init = (init != null ? make(init) : "").replace(/;*\s*$/, ";" + space);
- cond = (cond != null ? make(cond) : "").replace(/;*\s*$/, ";" + space);
- step = (step != null ? make(step) : "").replace(/;*\s*$/, "");
- var args = init + cond + step;
- if (args == "; ; ") args = ";;";
- out.push("(" + args + ")", make(block));
- return add_spaces(out);
- },
- "for-in": function(vvar, key, hash, block) {
- return add_spaces([ "for", "(" +
- (vvar ? make(vvar).replace(/;+$/, "") : make(key)),
- "in",
- make(hash) + ")", make(block) ]);
- },
- "while": function(condition, block) {
- return add_spaces([ "while", "(" + make(condition) + ")", make(block) ]);
- },
- "do": function(condition, block) {
- return add_spaces([ "do", make(block), "while", "(" + make(condition) + ")" ]) + ";";
- },
- "return": function(expr) {
- var out = [ "return" ];
- if (expr != null) out.push(make(expr));
- return add_spaces(out) + ";";
- },
- "binary": function(operator, lvalue, rvalue) {
- var left = make(lvalue), right = make(rvalue);
- // XXX: I'm pretty sure other cases will bite here.
- // we need to be smarter.
- // adding parens all the time is the safest bet.
- if (member(lvalue[0], [ "assign", "conditional", "seq" ]) ||
- lvalue[0] == "binary" && PRECEDENCE[operator] > PRECEDENCE[lvalue[1]]) {
- left = "(" + left + ")";
- }
- if (member(rvalue[0], [ "assign", "conditional", "seq" ]) ||
- rvalue[0] == "binary" && PRECEDENCE[operator] >= PRECEDENCE[rvalue[1]] &&
- !(rvalue[1] == operator && member(operator, [ "&&", "||", "*" ]))) {
- right = "(" + right + ")";
- }
- return add_spaces([ left, operator, right ]);
- },
- "unary-prefix": function(operator, expr) {
- var val = make(expr);
- if (!(expr[0] == "num" || (expr[0] == "unary-prefix" && !HOP(OPERATORS, operator + expr[1])) || !needs_parens(expr)))
- val = "(" + val + ")";
- return operator + (is_alphanumeric_char(operator.charAt(0)) ? " " : "") + val;
- },
- "unary-postfix": function(operator, expr) {
- var val = make(expr);
- if (!(expr[0] == "num" || (expr[0] == "unary-postfix" && !HOP(OPERATORS, operator + expr[1])) || !needs_parens(expr)))
- val = "(" + val + ")";
- return val + operator;
- },
- "sub": function(expr, subscript) {
- var hash = make(expr);
- if (needs_parens(expr))
- hash = "(" + hash + ")";
- return hash + "[" + make(subscript) + "]";
- },
- "object": function(props) {
- if (props.length == 0)
- return "{}";
- return "{" + newline + with_indent(function(){
- return MAP(props, function(p){
- if (p.length == 3) {
- // getter/setter. The name is in p[0], the arg.list in p[1][2], the
- // body in p[1][3] and type ("get" / "set") in p[2].
- return indent(make_function(p[0], p[1][2], p[1][3], p[2]));
- }
- var key = p[0], val = make(p[1]);
- if (options.quote_keys) {
- key = make_string(key);
- } else if ((typeof key == "number" || !beautify && +key + "" == key)
- && parseFloat(key) >= 0) {
- key = make_num(+key);
- } else if (!is_identifier(key)) {
- key = make_string(key);
- }
- return indent(add_spaces(beautify && options.space_colon
- ? [ key, ":", val ]
- : [ key + ":", val ]));
- }).join("," + newline);
- }) + newline + indent("}");
- },
- "regexp": function(rx, mods) {
- return "/" + rx + "/" + mods;
- },
- "array": function(elements) {
- if (elements.length == 0) return "[]";
- return add_spaces([ "[", add_commas(MAP(elements, function(el){
- if (!beautify && el[0] == "atom" && el[1] == "undefined") return "";
- return parenthesize(el, "seq");
- })), "]" ]);
- },
- "stat": function(stmt) {
- return make(stmt).replace(/;*\s*$/, ";");
- },
- "seq": function() {
- return add_commas(MAP(slice(arguments), make));
- },
- "label": function(name, block) {
- return add_spaces([ make_name(name), ":", make(block) ]);
- },
- "with": function(expr, block) {
- return add_spaces([ "with", "(" + make(expr) + ")", make(block) ]);
- },
- "atom": function(name) {
- return make_name(name);
- }
- };
-
- // The squeezer replaces "block"-s that contain only a single
- // statement with the statement itself; technically, the AST
- // is correct, but this can create problems when we output an
- // IF having an ELSE clause where the THEN clause ends in an
- // IF *without* an ELSE block (then the outer ELSE would refer
- // to the inner IF). This function checks for this case and
- // adds the block brackets if needed.
- function make_then(th) {
- if (th[0] == "do") {
- // https://github.com/mishoo/UglifyJS/issues/#issue/57
- // IE croaks with "syntax error" on code like this:
- // if (foo) do ... while(cond); else ...
- // we need block brackets around do/while
- return make([ "block", [ th ]]);
- }
- var b = th;
- while (true) {
- var type = b[0];
- if (type == "if") {
- if (!b[3])
- // no else, we must add the block
- return make([ "block", [ th ]]);
- b = b[3];
- }
- else if (type == "while" || type == "do") b = b[2];
- else if (type == "for" || type == "for-in") b = b[4];
- else break;
- }
- return make(th);
- };
-
- function make_function(name, args, body, keyword) {
- var out = keyword || "function";
- if (name) {
- out += " " + make_name(name);
- }
- out += "(" + add_commas(MAP(args, make_name)) + ")";
- return add_spaces([ out, make_block(body) ]);
- };
-
- function make_block_statements(statements, noindent) {
- for (var a = [], last = statements.length - 1, i = 0; i <= last; ++i) {
- var stat = statements[i];
- var code = make(stat);
- if (code != ";") {
- if (!beautify && i == last) {
- if ((stat[0] == "while" && empty(stat[2])) ||
- (member(stat[0], [ "for", "for-in"] ) && empty(stat[4])) ||
- (stat[0] == "if" && empty(stat[2]) && !stat[3]) ||
- (stat[0] == "if" && stat[3] && empty(stat[3]))) {
- code = code.replace(/;*\s*$/, ";");
- } else {
- code = code.replace(/;+\s*$/, "");
- }
- }
- a.push(code);
- }
- }
- return noindent ? a : MAP(a, indent);
- };
-
- function make_switch_block(body) {
- var n = body.length;
- if (n == 0) return "{}";
- return "{" + newline + MAP(body, function(branch, i){
- var has_body = branch[1].length > 0, code = with_indent(function(){
- return indent(branch[0]
- ? add_spaces([ "case", make(branch[0]) + ":" ])
- : "default:");
- }, 0.5) + (has_body ? newline + with_indent(function(){
- return make_block_statements(branch[1]).join(newline);
- }) : "");
- if (!beautify && has_body && i < n - 1)
- code += ";";
- return code;
- }).join(newline) + newline + indent("}");
- };
-
- function make_block(statements) {
- if (!statements) return ";";
- if (statements.length == 0) return "{}";
- return "{" + newline + with_indent(function(){
- return make_block_statements(statements).join(newline);
- }) + newline + indent("}");
- };
-
- function make_1vardef(def) {
- var name = def[0], val = def[1];
- if (val != null)
- name = add_spaces([ make_name(name), "=", parenthesize(val, "seq") ]);
- return name;
- };
-
- var $stack = [];
-
- function make(node) {
- var type = node[0];
- var gen = generators[type];
- if (!gen)
- throw new Error("Can't find generator for \"" + type + "\"");
- $stack.push(node);
- var ret = gen.apply(type, node.slice(1));
- $stack.pop();
- return ret;
- };
-
- return make(ast);
-};
-
-/* -----[ Utilities ]----- */
-
-function repeat_string(str, i) {
- return i < 1 ? "" : new Array(i + 1).join(str);
-};
-
-function defaults(args, defs) {
- var ret = {};
- if (args === true)
- args = {};
- for (var i in defs) if (HOP(defs, i)) {
- ret[i] = (args && HOP(args, i)) ? args[i] : defs[i];
- }
- return ret;
-};
-
-function is_identifier(name) {
- return /^[a-z_$][a-z0-9_$]*$/i.test(name)
- && name != "this"
- && !HOP(KEYWORDS_ATOM, name)
- && !HOP(RESERVED_WORDS, name)
- && !HOP(KEYWORDS, name);
-};
-
-function MAP(a, f, o) {
- var ret = [];
- for (var i = 0; i < a.length; ++i) {
- ret.push(f.call(o, a[i], i));
- }
- return ret;
-};
-
-/* -----[ Exports ]----- */
-
-return {
- parse: parse,
- gen_code: gen_code,
- tokenizer: tokenizer,
- ast_walker: ast_walker
-};
-
-};
diff --git a/lib/prepro.js b/lib/prepro.js
deleted file mode 100644
index c92796a7..00000000
--- a/lib/prepro.js
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Paper.js
- *
- * This file is part of Paper.js, a JavaScript Vector Graphics Library,
- * based on Scriptographer.org and designed to be largely API compatible.
- * http://paperjs.org/
- * http://scriptographer.org/
- *
- * Copyright (c) 2011, Juerg Lehni & Jonathan Puckey
- * http://lehni.org/ & http://jonathanpuckey.com/
- *
- * Distributed under the MIT license. See LICENSE file for details.
- *
- * All rights reserved.
- */
-
-// Since loading prepro.js is also used further down to prevent inline scripts
-// from executing right away, check that its actual code is only executed once.
-if (!window.include) {
- // Determine the source of prepro.js, so we can use it to prevent inline
- // scripts from loading straight away.
- var scripts = document.getElementsByTagName('script');
- var script = scripts[scripts.length - 1];
- var src = script.getAttribute('src');
- var root = src.match(/^(.*\/)/)[1];
-
- window.include = function(url) {
- url = root + url;
- var newRoot = url.match(/^(.*\/)/)[1];
- // Load prepro.js again, just to prevent the setting of newRoot frome
- // executing straight away, and delaying it until right before the
- // script at 'url' is loaded.
- document.write([
- '',
- // Set newRoot, so include() from 'url' load from the right place
- '',
- // Load the actual script
- '',
- // Set root back to the root before
- ''
- ].join(''));
- }
-}
diff --git a/lib/stats.js b/lib/stats.js
deleted file mode 100644
index 5d85f626..00000000
--- a/lib/stats.js
+++ /dev/null
@@ -1,10 +0,0 @@
-// stats.js r5 - http://github.com/mrdoob/stats.js
-var Stats=function(){function w(d,K,n){var u,f,c;for(f=0;f<30;f++)for(u=0;u<73;u++){c=(u+f*74)*4;d[c]=d[c+4];d[c+1]=d[c+5];d[c+2]=d[c+6]}for(f=0;f<30;f++){c=(73+f*74)*4;if(f'+q+" MS ("+D+"-"+E+")";r.putImageData(F,0,0);J=l;if(l>
-z+1E3){o=Math.round(y*1E3/(l-z));A=Math.min(A,o);B=Math.max(B,o);w(C.data,Math.min(30,30-o/100*30),"fps");g.innerHTML=''+o+" FPS ("+A+"-"+B+")";p.putImageData(C,0,0);if(x==3){s=performance.memory.usedJSHeapSize*9.54E-7;G=Math.min(G,s);H=Math.max(H,s);w(I.data,Math.min(30,30-s/2),"mem");k.innerHTML=''+Math.round(s)+" MEM ("+Math.round(G)+"-"+Math.round(H)+")";t.putImageData(I,0,0)}z=l;y=0}}}};
-
diff --git a/node.js/index.js b/node.js/index.js
deleted file mode 100644
index 243a9d1b..00000000
--- a/node.js/index.js
+++ /dev/null
@@ -1,58 +0,0 @@
-var fs = require('fs'),
- vm = require('vm'),
- path = require('path'),
- Canvas = require('canvas');
-
-__dirname = path.resolve(__dirname, '../src/');
-
-// Create the context within which we will run the source files:
-var context = vm.createContext({
- options: {
- server: true,
- version: 'dev'
- },
- fs: fs,
- // Node Canvas library: https://github.com/learnboost/node-canvas
- Canvas: Canvas,
- HTMLCanvasElement: Canvas,
- Image: Canvas.Image,
- // Copy over global variables:
- console: console,
- require: require,
- __dirname: __dirname,
- __filename: __filename,
- // Used to load and run source files within the same context:
- include: function(uri) {
- var source = fs.readFileSync(path.resolve(__dirname, uri), 'utf8');
- // For relative includes, we save the current directory and then
- // add the uri directory to __dirname:
- var oldDirname = __dirname;
- __dirname = path.resolve(__dirname, path.dirname(uri));
- vm.runInContext(source, context, uri);
- __dirname = oldDirname;
- }
-});
-
-// Load Paper.js library files:
-context.include('paper.js');
-
-context.Base.each(context, function(val, key) {
- if (val && val.prototype instanceof context.Base) {
- val._name = key;
- // Export all classes through PaperScope:
- context.PaperScope.prototype[key] = val;
- }
-});
-context.PaperScope.prototype['Canvas'] = context.Canvas;
-
-require.extensions['.pjs'] = function(module, uri) {
- var source = context.PaperScript.compile(fs.readFileSync(uri, 'utf8'));
- var envVars = 'var __dirname = \'' + path.dirname(uri) + '\';' +
- 'var __filename = \'' + uri + '\';';
- vm.runInContext(envVars, context);
- var scope = new context.PaperScope();
- context.PaperScript.evaluate(source, scope);
- module.exports = scope;
-};
-
-module.exports = new context.PaperScope();
\ No newline at end of file