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224 lines
5.8 KiB
224 lines
5.8 KiB
12 years ago
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// lib/handlebars/base.js
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var Handlebars = {};
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Handlebars.VERSION = "1.0.beta.6";
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Handlebars.helpers = {};
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Handlebars.partials = {};
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Handlebars.registerHelper = function(name, fn, inverse) {
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if(inverse) { fn.not = inverse; }
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this.helpers[name] = fn;
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};
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Handlebars.registerPartial = function(name, str) {
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this.partials[name] = str;
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};
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Handlebars.registerHelper('helperMissing', function(arg) {
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if(arguments.length === 2) {
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return undefined;
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} else {
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throw new Error("Could not find property '" + arg + "'");
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}
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});
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var toString = Object.prototype.toString, functionType = "[object Function]";
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Handlebars.registerHelper('blockHelperMissing', function(context, options) {
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var inverse = options.inverse || function() {}, fn = options.fn;
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var ret = "";
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var type = toString.call(context);
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if(type === functionType) { context = context.call(this); }
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if(context === true) {
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return fn(this);
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} else if(context === false || context == null) {
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return inverse(this);
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} else if(type === "[object Array]") {
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if(context.length > 0) {
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for(var i=0, j=context.length; i<j; i++) {
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ret = ret + fn(context[i]);
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}
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} else {
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ret = inverse(this);
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}
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return ret;
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} else {
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return fn(context);
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}
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});
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Handlebars.registerHelper('each', function(context, options) {
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var fn = options.fn, inverse = options.inverse;
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var ret = "";
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if(context && context.length > 0) {
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for(var i=0, j=context.length; i<j; i++) {
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ret = ret + fn(context[i]);
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}
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} else {
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ret = inverse(this);
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}
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return ret;
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});
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Handlebars.registerHelper('if', function(context, options) {
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var type = toString.call(context);
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if(type === functionType) { context = context.call(this); }
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if(!context || Handlebars.Utils.isEmpty(context)) {
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return options.inverse(this);
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} else {
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return options.fn(this);
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}
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});
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Handlebars.registerHelper('unless', function(context, options) {
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var fn = options.fn, inverse = options.inverse;
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options.fn = inverse;
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options.inverse = fn;
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return Handlebars.helpers['if'].call(this, context, options);
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});
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Handlebars.registerHelper('with', function(context, options) {
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return options.fn(context);
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});
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Handlebars.registerHelper('log', function(context) {
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Handlebars.log(context);
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});
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;
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// lib/handlebars/utils.js
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Handlebars.Exception = function(message) {
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var tmp = Error.prototype.constructor.apply(this, arguments);
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for (var p in tmp) {
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if (tmp.hasOwnProperty(p)) { this[p] = tmp[p]; }
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}
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this.message = tmp.message;
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};
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Handlebars.Exception.prototype = new Error;
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// Build out our basic SafeString type
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Handlebars.SafeString = function(string) {
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this.string = string;
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};
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Handlebars.SafeString.prototype.toString = function() {
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return this.string.toString();
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};
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(function() {
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var escape = {
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"<": "<",
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">": ">",
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'"': """,
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"'": "'",
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"`": "`"
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};
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var badChars = /&(?!\w+;)|[<>"'`]/g;
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var possible = /[&<>"'`]/;
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var escapeChar = function(chr) {
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return escape[chr] || "&";
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};
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Handlebars.Utils = {
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escapeExpression: function(string) {
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// don't escape SafeStrings, since they're already safe
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if (string instanceof Handlebars.SafeString) {
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return string.toString();
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} else if (string == null || string === false) {
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return "";
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}
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if(!possible.test(string)) { return string; }
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return string.replace(badChars, escapeChar);
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},
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isEmpty: function(value) {
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if (typeof value === "undefined") {
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return true;
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} else if (value === null) {
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return true;
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} else if (value === false) {
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return true;
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} else if(Object.prototype.toString.call(value) === "[object Array]" && value.length === 0) {
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return true;
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} else {
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return false;
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}
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}
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};
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})();;
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// lib/handlebars/runtime.js
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Handlebars.VM = {
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template: function(templateSpec) {
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// Just add water
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var container = {
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escapeExpression: Handlebars.Utils.escapeExpression,
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invokePartial: Handlebars.VM.invokePartial,
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programs: [],
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program: function(i, fn, data) {
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var programWrapper = this.programs[i];
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if(data) {
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return Handlebars.VM.program(fn, data);
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} else if(programWrapper) {
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return programWrapper;
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} else {
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programWrapper = this.programs[i] = Handlebars.VM.program(fn);
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return programWrapper;
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}
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},
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programWithDepth: Handlebars.VM.programWithDepth,
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noop: Handlebars.VM.noop
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};
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return function(context, options) {
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options = options || {};
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return templateSpec.call(container, Handlebars, context, options.helpers, options.partials, options.data);
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};
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},
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programWithDepth: function(fn, data, $depth) {
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var args = Array.prototype.slice.call(arguments, 2);
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return function(context, options) {
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options = options || {};
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return fn.apply(this, [context, options.data || data].concat(args));
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};
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},
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program: function(fn, data) {
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return function(context, options) {
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options = options || {};
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return fn(context, options.data || data);
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};
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},
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noop: function() { return ""; },
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invokePartial: function(partial, name, context, helpers, partials, data) {
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options = { helpers: helpers, partials: partials, data: data };
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if(partial === undefined) {
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throw new Handlebars.Exception("The partial " + name + " could not be found");
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} else if(partial instanceof Function) {
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return partial(context, options);
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} else if (!Handlebars.compile) {
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throw new Handlebars.Exception("The partial " + name + " could not be compiled when running in runtime-only mode");
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} else {
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partials[name] = Handlebars.compile(partial);
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return partials[name](context, options);
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}
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}
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};
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Handlebars.template = Handlebars.VM.template;
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;
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