From cb10a247cfc91511cfc0e31bfcbb1d6f7d178529 Mon Sep 17 00:00:00 2001 From: James Lal Date: Fri, 6 Jul 2012 08:14:53 -0700 Subject: add browser package back --- caldav.js | 2607 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 2607 insertions(+) create mode 100644 caldav.js (limited to 'caldav.js') diff --git a/caldav.js b/caldav.js new file mode 100644 index 0000000..c7d8e04 --- /dev/null +++ b/caldav.js @@ -0,0 +1,2607 @@ +// wrapper for non-node envs +;(function (sax) { + +sax.parser = function (strict, opt) { return new SAXParser(strict, opt) } +sax.SAXParser = SAXParser +sax.SAXStream = SAXStream +sax.createStream = createStream + +// When we pass the MAX_BUFFER_LENGTH position, start checking for buffer overruns. +// When we check, schedule the next check for MAX_BUFFER_LENGTH - (max(buffer lengths)), +// since that's the earliest that a buffer overrun could occur. This way, checks are +// as rare as required, but as often as necessary to ensure never crossing this bound. +// Furthermore, buffers are only tested at most once per write(), so passing a very +// large string into write() might have undesirable effects, but this is manageable by +// the caller, so it is assumed to be safe. Thus, a call to write() may, in the extreme +// edge case, result in creating at most one complete copy of the string passed in. +// Set to Infinity to have unlimited buffers. +sax.MAX_BUFFER_LENGTH = 64 * 1024 + +var buffers = [ + "comment", "sgmlDecl", "textNode", "tagName", "doctype", + "procInstName", "procInstBody", "entity", "attribName", + "attribValue", "cdata", "script" +] + +sax.EVENTS = // for discoverability. + [ "text" + , "processinginstruction" + , "sgmldeclaration" + , "doctype" + , "comment" + , "attribute" + , "opentag" + , "closetag" + , "opencdata" + , "cdata" + , "closecdata" + , "error" + , "end" + , "ready" + , "script" + , "opennamespace" + , "closenamespace" + ] + +function SAXParser (strict, opt) { + if (!(this instanceof SAXParser)) return new SAXParser(strict, opt) + + var parser = this + clearBuffers(parser) + parser.q = parser.c = "" + parser.bufferCheckPosition = sax.MAX_BUFFER_LENGTH + parser.opt = opt || {} + parser.opt.lowercase = parser.opt.lowercase || parser.opt.lowercasetags; + parser.looseCase = parser.opt.lowercase ? "toLowerCase" : "toUpperCase" + parser.tags = [] + parser.closed = parser.closedRoot = parser.sawRoot = false + parser.tag = parser.error = null + parser.strict = !!strict + parser.noscript = !!(strict || parser.opt.noscript) + parser.state = S.BEGIN + parser.ENTITIES = Object.create(sax.ENTITIES) + parser.attribList = [] + + // namespaces form a prototype chain. + // it always points at the current tag, + // which protos to its parent tag. + if (parser.opt.xmlns) parser.ns = Object.create(rootNS) + + // mostly just for error reporting + parser.position = parser.line = parser.column = 0 + emit(parser, "onready") +} + +if (!Object.create) Object.create = function (o) { + function f () { this.__proto__ = o } + f.prototype = o + return new f +} + +if (!Object.getPrototypeOf) Object.getPrototypeOf = function (o) { + return o.__proto__ +} + +if (!Object.keys) Object.keys = function (o) { + var a = [] + for (var i in o) if (o.hasOwnProperty(i)) a.push(i) + return a +} + +function checkBufferLength (parser) { + var maxAllowed = Math.max(sax.MAX_BUFFER_LENGTH, 10) + , maxActual = 0 + for (var i = 0, l = buffers.length; i < l; i ++) { + var len = parser[buffers[i]].length + if (len > maxAllowed) { + // Text/cdata nodes can get big, and since they're buffered, + // we can get here under normal conditions. + // Avoid issues by emitting the text node now, + // so at least it won't get any bigger. + switch (buffers[i]) { + case "textNode": + closeText(parser) + break + + case "cdata": + emitNode(parser, "oncdata", parser.cdata) + parser.cdata = "" + break + + case "script": + emitNode(parser, "onscript", parser.script) + parser.script = "" + break + + default: + error(parser, "Max buffer length exceeded: "+buffers[i]) + } + } + maxActual = Math.max(maxActual, len) + } + // schedule the next check for the earliest possible buffer overrun. + parser.bufferCheckPosition = (sax.MAX_BUFFER_LENGTH - maxActual) + + parser.position +} + +function clearBuffers (parser) { + for (var i = 0, l = buffers.length; i < l; i ++) { + parser[buffers[i]] = "" + } +} + +SAXParser.prototype = + { end: function () { end(this) } + , write: write + , resume: function () { this.error = null; return this } + , close: function () { return this.write(null) } + } + +try { + var Stream = require("stream").Stream +} catch (ex) { + var Stream = function () {} +} + + +var streamWraps = sax.EVENTS.filter(function (ev) { + return ev !== "error" && ev !== "end" +}) + +function createStream (strict, opt) { + return new SAXStream(strict, opt) +} + +function SAXStream (strict, opt) { + if (!(this instanceof SAXStream)) return new SAXStream(strict, opt) + + Stream.apply(me) + + this._parser = new SAXParser(strict, opt) + this.writable = true + this.readable = true + + + var me = this + + this._parser.onend = function () { + me.emit("end") + } + + this._parser.onerror = function (er) { + me.emit("error", er) + + // if didn't throw, then means error was handled. + // go ahead and clear error, so we can write again. + me._parser.error = null + } + + streamWraps.forEach(function (ev) { + Object.defineProperty(me, "on" + ev, { + get: function () { return me._parser["on" + ev] }, + set: function (h) { + if (!h) { + me.removeAllListeners(ev) + return me._parser["on"+ev] = h + } + me.on(ev, h) + }, + enumerable: true, + configurable: false + }) + }) +} + +SAXStream.prototype = Object.create(Stream.prototype, + { constructor: { value: SAXStream } }) + +SAXStream.prototype.write = function (data) { + this._parser.write(data.toString()) + this.emit("data", data) + return true +} + +SAXStream.prototype.end = function (chunk) { + if (chunk && chunk.length) this._parser.write(chunk.toString()) + this._parser.end() + return true +} + +SAXStream.prototype.on = function (ev, handler) { + var me = this + if (!me._parser["on"+ev] && streamWraps.indexOf(ev) !== -1) { + me._parser["on"+ev] = function () { + var args = arguments.length === 1 ? [arguments[0]] + : Array.apply(null, arguments) + args.splice(0, 0, ev) + me.emit.apply(me, args) + } + } + + return Stream.prototype.on.call(me, ev, handler) +} + + + +// character classes and tokens +var whitespace = "\r\n\t " + // this really needs to be replaced with character classes. + // XML allows all manner of ridiculous numbers and digits. + , number = "0124356789" + , letter = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" + // (Letter | "_" | ":") + , nameStart = letter+"_:" + , nameBody = nameStart+number+"-." + , quote = "'\"" + , entity = number+letter+"#" + , attribEnd = whitespace + ">" + , CDATA = "[CDATA[" + , DOCTYPE = "DOCTYPE" + , XML_NAMESPACE = "http://www.w3.org/XML/1998/namespace" + , XMLNS_NAMESPACE = "http://www.w3.org/2000/xmlns/" + , rootNS = { xml: XML_NAMESPACE, xmlns: XMLNS_NAMESPACE } + +// turn all the string character sets into character class objects. +whitespace = charClass(whitespace) +number = charClass(number) +letter = charClass(letter) +nameStart = charClass(nameStart) +nameBody = charClass(nameBody) +quote = charClass(quote) +entity = charClass(entity) +attribEnd = charClass(attribEnd) + +function charClass (str) { + return str.split("").reduce(function (s, c) { + s[c] = true + return s + }, {}) +} + +function is (charclass, c) { + return charclass[c] +} + +function not (charclass, c) { + return !charclass[c] +} + +var S = 0 +sax.STATE = +{ BEGIN : S++ +, TEXT : S++ // general stuff +, TEXT_ENTITY : S++ // & and such. +, OPEN_WAKA : S++ // < +, SGML_DECL : S++ // +, SCRIPT : S++ //