1157 lines
31 KiB
JavaScript
1157 lines
31 KiB
JavaScript
/*! dustjs-linkedin - v2.7.5
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* http://dustjs.com/
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* Copyright (c) 2016 Aleksander Williams; Released under the MIT License */
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(function (root, factory) {
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if (typeof define === 'function' && define.amd && define.amd.dust === true) {
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define('dust.core', [], factory);
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} else if (typeof exports === 'object') {
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module.exports = factory();
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} else {
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root.dust = factory();
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}
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}(this, function() {
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var dust = {
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"version": "2.7.5"
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},
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NONE = 'NONE', ERROR = 'ERROR', WARN = 'WARN', INFO = 'INFO', DEBUG = 'DEBUG',
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EMPTY_FUNC = function() {};
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dust.config = {
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whitespace: false,
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amd: false,
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cjs: false,
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cache: true
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};
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// Directive aliases to minify code
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dust._aliases = {
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"write": "w",
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"end": "e",
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"map": "m",
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"render": "r",
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"reference": "f",
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"section": "s",
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"exists": "x",
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"notexists": "nx",
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"block": "b",
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"partial": "p",
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"helper": "h"
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};
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(function initLogging() {
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/*global process, console*/
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var loggingLevels = { DEBUG: 0, INFO: 1, WARN: 2, ERROR: 3, NONE: 4 },
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consoleLog,
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log;
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if (typeof console !== 'undefined' && console.log) {
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consoleLog = console.log;
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if(typeof consoleLog === 'function') {
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log = function() {
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consoleLog.apply(console, arguments);
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};
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} else {
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log = function() {
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consoleLog(Array.prototype.slice.apply(arguments).join(' '));
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};
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}
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} else {
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log = EMPTY_FUNC;
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}
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/**
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* Filters messages based on `dust.debugLevel`.
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* This default implementation will print to the console if it exists.
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* @param {String|Error} message the message to print/throw
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* @param {String} type the severity of the message(ERROR, WARN, INFO, or DEBUG)
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* @public
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*/
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dust.log = function(message, type) {
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type = type || INFO;
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if (loggingLevels[type] >= loggingLevels[dust.debugLevel]) {
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log('[DUST:' + type + ']', message);
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}
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};
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dust.debugLevel = NONE;
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if(typeof process !== 'undefined' && process.env && /\bdust\b/.test(process.env.DEBUG)) {
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dust.debugLevel = DEBUG;
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}
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}());
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dust.helpers = {};
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dust.cache = {};
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dust.register = function(name, tmpl) {
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if (!name) {
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return;
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}
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tmpl.templateName = name;
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if (dust.config.cache !== false) {
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dust.cache[name] = tmpl;
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}
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};
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dust.render = function(nameOrTemplate, context, callback) {
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var chunk = new Stub(callback).head;
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try {
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load(nameOrTemplate, chunk, context).end();
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} catch (err) {
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chunk.setError(err);
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}
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};
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dust.stream = function(nameOrTemplate, context) {
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var stream = new Stream(),
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chunk = stream.head;
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dust.nextTick(function() {
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try {
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load(nameOrTemplate, chunk, context).end();
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} catch (err) {
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chunk.setError(err);
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}
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});
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return stream;
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};
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/**
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* Extracts a template function (body_0) from whatever is passed.
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* @param nameOrTemplate {*} Could be:
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* - the name of a template to load from cache
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* - a CommonJS-compiled template (a function with a `template` property)
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* - a template function
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* @param loadFromCache {Boolean} if false, don't look in the cache
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* @return {Function} a template function, if found
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*/
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function getTemplate(nameOrTemplate, loadFromCache/*=true*/) {
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if(!nameOrTemplate) {
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return;
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}
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if(typeof nameOrTemplate === 'function' && nameOrTemplate.template) {
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// Sugar away CommonJS module templates
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return nameOrTemplate.template;
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}
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if(dust.isTemplateFn(nameOrTemplate)) {
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// Template functions passed directly
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return nameOrTemplate;
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}
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if(loadFromCache !== false) {
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// Try loading a template with this name from cache
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return dust.cache[nameOrTemplate];
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}
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}
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function load(nameOrTemplate, chunk, context) {
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if(!nameOrTemplate) {
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return chunk.setError(new Error('No template or template name provided to render'));
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}
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var template = getTemplate(nameOrTemplate, dust.config.cache);
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if (template) {
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return template(chunk, Context.wrap(context, template.templateName));
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} else {
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if (dust.onLoad) {
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return chunk.map(function(chunk) {
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// Alias just so it's easier to read that this would always be a name
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var name = nameOrTemplate;
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// Three possible scenarios for a successful callback:
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// - `require(nameOrTemplate)(dust); cb()`
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// - `src = readFile('src.dust'); cb(null, src)`
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// - `compiledTemplate = require(nameOrTemplate)(dust); cb(null, compiledTemplate)`
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function done(err, srcOrTemplate) {
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var template;
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if (err) {
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return chunk.setError(err);
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}
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// Prefer a template that is passed via callback over the cached version.
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template = getTemplate(srcOrTemplate, false) || getTemplate(name, dust.config.cache);
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if (!template) {
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// It's a template string, compile it and register under `name`
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if(dust.compile) {
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template = dust.loadSource(dust.compile(srcOrTemplate, name));
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} else {
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return chunk.setError(new Error('Dust compiler not available'));
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}
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}
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template(chunk, Context.wrap(context, template.templateName)).end();
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}
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if(dust.onLoad.length === 3) {
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dust.onLoad(name, context.options, done);
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} else {
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dust.onLoad(name, done);
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}
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});
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}
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return chunk.setError(new Error('Template Not Found: ' + nameOrTemplate));
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}
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}
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dust.loadSource = function(source) {
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/*jshint evil:true*/
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return eval(source);
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};
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if (Array.isArray) {
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dust.isArray = Array.isArray;
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} else {
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dust.isArray = function(arr) {
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return Object.prototype.toString.call(arr) === '[object Array]';
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};
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}
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dust.nextTick = (function() {
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return function(callback) {
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setTimeout(callback, 0);
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};
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})();
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/**
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* Dust has its own rules for what is "empty"-- which is not the same as falsy.
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* Empty arrays, null, and undefined are empty
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*/
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dust.isEmpty = function(value) {
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if (value === 0) {
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return false;
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}
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if (dust.isArray(value) && !value.length) {
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return true;
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}
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return !value;
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};
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dust.isEmptyObject = function(obj) {
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var key;
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if (obj === null) {
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return false;
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}
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if (obj === undefined) {
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return false;
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}
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if (obj.length > 0) {
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return false;
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}
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for (key in obj) {
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if (Object.prototype.hasOwnProperty.call(obj, key)) {
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return false;
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}
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}
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return true;
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};
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dust.isTemplateFn = function(elem) {
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return typeof elem === 'function' &&
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elem.__dustBody;
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};
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/**
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* Decide somewhat-naively if something is a Thenable.
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* @param elem {*} object to inspect
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* @return {Boolean} is `elem` a Thenable?
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*/
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dust.isThenable = function(elem) {
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return elem &&
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typeof elem === 'object' &&
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typeof elem.then === 'function';
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};
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/**
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* Decide very naively if something is a Stream.
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* @param elem {*} object to inspect
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* @return {Boolean} is `elem` a Stream?
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*/
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dust.isStreamable = function(elem) {
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return elem &&
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typeof elem.on === 'function' &&
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typeof elem.pipe === 'function';
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};
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// apply the filter chain and return the output string
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dust.filter = function(string, auto, filters, context) {
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var i, len, name, filter;
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if (filters) {
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for (i = 0, len = filters.length; i < len; i++) {
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name = filters[i];
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if (!name.length) {
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continue;
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}
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filter = dust.filters[name];
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if (name === 's') {
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auto = null;
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} else if (typeof filter === 'function') {
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string = filter(string, context);
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} else {
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dust.log('Invalid filter `' + name + '`', WARN);
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}
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}
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}
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// by default always apply the h filter, unless asked to unescape with |s
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if (auto) {
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string = dust.filters[auto](string, context);
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}
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return string;
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};
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dust.filters = {
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h: function(value) { return dust.escapeHtml(value); },
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j: function(value) { return dust.escapeJs(value); },
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u: encodeURI,
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uc: encodeURIComponent,
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js: function(value) { return dust.escapeJSON(value); },
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jp: function(value) {
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if (!JSON) {dust.log('JSON is undefined; could not parse `' + value + '`', WARN);
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return value;
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} else {
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return JSON.parse(value);
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}
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}
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};
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function Context(stack, global, options, blocks, templateName) {
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if(stack !== undefined && !(stack instanceof Stack)) {
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stack = new Stack(stack);
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}
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this.stack = stack;
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this.global = global;
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this.options = options;
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this.blocks = blocks;
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this.templateName = templateName;
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this._isContext = true;
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}
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dust.makeBase = dust.context = function(global, options) {
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return new Context(undefined, global, options);
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};
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dust.isContext = function(obj) {
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return typeof obj === "object" && obj._isContext === true;
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};
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/**
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* Factory function that creates a closure scope around a Thenable-callback.
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* Returns a function that can be passed to a Thenable that will resume a
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* Context lookup once the Thenable resolves with new data, adding that new
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* data to the lookup stack.
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*/
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function getWithResolvedData(ctx, cur, down) {
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return function(data) {
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return ctx.push(data)._get(cur, down);
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};
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}
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Context.wrap = function(context, name) {
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if (dust.isContext(context)) {
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return context;
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}
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return new Context(context, {}, {}, null, name);
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};
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/**
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* Public API for getting a value from the context.
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* @method get
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* @param {string|array} path The path to the value. Supported formats are:
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* 'key'
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* 'path.to.key'
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* '.path.to.key'
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* ['path', 'to', 'key']
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* ['key']
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* @param {boolean} [cur=false] Boolean which determines if the search should be limited to the
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* current context (true), or if get should search in parent contexts as well (false).
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* @public
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* @returns {string|object}
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*/
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Context.prototype.get = function(path, cur) {
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if (typeof path === 'string') {
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if (path[0] === '.') {
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cur = true;
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path = path.substr(1);
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}
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path = path.split('.');
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}
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return this._get(cur, path);
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};
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/**
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* Get a value from the context
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* @method _get
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* @param {boolean} cur Get only from the current context
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* @param {array} down An array of each step in the path
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* @private
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* @return {string | object}
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*/
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Context.prototype._get = function(cur, down) {
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var ctx = this.stack || {},
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i = 1,
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value, first, len, ctxThis, fn;
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first = down[0];
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len = down.length;
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if (cur && len === 0) {
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ctxThis = ctx;
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ctx = ctx.head;
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} else {
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if (!cur) {
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// Search up the stack for the first value
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while (ctx) {
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if (ctx.isObject) {
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ctxThis = ctx.head;
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value = ctx.head[first];
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if (value !== undefined) {
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break;
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}
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}
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ctx = ctx.tail;
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}
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// Try looking in the global context if we haven't found anything yet
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if (value !== undefined) {
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ctx = value;
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} else {
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ctx = this.global && this.global[first];
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}
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} else if (ctx) {
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// if scope is limited by a leading dot, don't search up the tree
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if(ctx.head) {
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ctx = ctx.head[first];
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} else {
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// context's head is empty, value we are searching for is not defined
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ctx = undefined;
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}
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}
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while (ctx && i < len) {
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if (dust.isThenable(ctx)) {
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// Bail early by returning a Thenable for the remainder of the search tree
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return ctx.then(getWithResolvedData(this, cur, down.slice(i)));
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}
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ctxThis = ctx;
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ctx = ctx[down[i]];
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i++;
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}
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}
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if (typeof ctx === 'function') {
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fn = function() {
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try {
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return ctx.apply(ctxThis, arguments);
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} catch (err) {
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dust.log(err, ERROR);
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throw err;
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}
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};
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fn.__dustBody = !!ctx.__dustBody;
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return fn;
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} else {
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if (ctx === undefined) {
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dust.log('Cannot find reference `{' + down.join('.') + '}` in template `' + this.getTemplateName() + '`', INFO);
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}
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return ctx;
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}
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};
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Context.prototype.getPath = function(cur, down) {
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return this._get(cur, down);
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};
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Context.prototype.push = function(head, idx, len) {
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if(head === undefined) {
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dust.log("Not pushing an undefined variable onto the context", INFO);
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return this;
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}
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return this.rebase(new Stack(head, this.stack, idx, len));
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};
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Context.prototype.pop = function() {
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var head = this.current();
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this.stack = this.stack && this.stack.tail;
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return head;
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};
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Context.prototype.rebase = function(head) {
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return new Context(head, this.global, this.options, this.blocks, this.getTemplateName());
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};
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Context.prototype.clone = function() {
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var context = this.rebase();
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context.stack = this.stack;
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return context;
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};
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Context.prototype.current = function() {
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return this.stack && this.stack.head;
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};
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Context.prototype.getBlock = function(key) {
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var blocks, len, fn;
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if (typeof key === 'function') {
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key = key(new Chunk(), this).data.join('');
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}
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blocks = this.blocks;
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if (!blocks) {
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dust.log('No blocks for context `' + key + '` in template `' + this.getTemplateName() + '`', DEBUG);
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return false;
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}
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len = blocks.length;
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while (len--) {
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fn = blocks[len][key];
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if (fn) {
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return fn;
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}
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}
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dust.log('Malformed template `' + this.getTemplateName() + '` was missing one or more blocks.');
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return false;
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};
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Context.prototype.shiftBlocks = function(locals) {
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var blocks = this.blocks,
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newBlocks;
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if (locals) {
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if (!blocks) {
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newBlocks = [locals];
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} else {
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newBlocks = blocks.concat([locals]);
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}
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return new Context(this.stack, this.global, this.options, newBlocks, this.getTemplateName());
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}
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return this;
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};
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Context.prototype.resolve = function(body) {
|
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var chunk;
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|
|
if(typeof body !== 'function') {
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return body;
|
|
}
|
|
chunk = new Chunk().render(body, this);
|
|
if(chunk instanceof Chunk) {
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return chunk.data.join(''); // ie7 perf
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}
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return chunk;
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};
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|
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Context.prototype.getTemplateName = function() {
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return this.templateName;
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};
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|
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function Stack(head, tail, idx, len) {
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this.tail = tail;
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|
this.isObject = head && typeof head === 'object';
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this.head = head;
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this.index = idx;
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this.of = len;
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}
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|
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function Stub(callback) {
|
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this.head = new Chunk(this);
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this.callback = callback;
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this.out = '';
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}
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|
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Stub.prototype.flush = function() {
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var chunk = this.head;
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|
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while (chunk) {
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if (chunk.flushable) {
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this.out += chunk.data.join(''); //ie7 perf
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} else if (chunk.error) {
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this.callback(chunk.error);
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dust.log('Rendering failed with error `' + chunk.error + '`', ERROR);
|
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this.flush = EMPTY_FUNC;
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return;
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} else {
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return;
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}
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chunk = chunk.next;
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|
this.head = chunk;
|
|
}
|
|
this.callback(null, this.out);
|
|
};
|
|
|
|
/**
|
|
* Creates an interface sort of like a Streams2 ReadableStream.
|
|
*/
|
|
function Stream() {
|
|
this.head = new Chunk(this);
|
|
}
|
|
|
|
Stream.prototype.flush = function() {
|
|
var chunk = this.head;
|
|
|
|
while(chunk) {
|
|
if (chunk.flushable) {
|
|
this.emit('data', chunk.data.join('')); //ie7 perf
|
|
} else if (chunk.error) {
|
|
this.emit('error', chunk.error);
|
|
this.emit('end');
|
|
dust.log('Streaming failed with error `' + chunk.error + '`', ERROR);
|
|
this.flush = EMPTY_FUNC;
|
|
return;
|
|
} else {
|
|
return;
|
|
}
|
|
chunk = chunk.next;
|
|
this.head = chunk;
|
|
}
|
|
this.emit('end');
|
|
};
|
|
|
|
/**
|
|
* Executes listeners for `type` by passing data. Note that this is different from a
|
|
* Node stream, which can pass an arbitrary number of arguments
|
|
* @return `true` if event had listeners, `false` otherwise
|
|
*/
|
|
Stream.prototype.emit = function(type, data) {
|
|
var events = this.events || {},
|
|
handlers = events[type] || [],
|
|
i, l;
|
|
|
|
if (!handlers.length) {
|
|
dust.log('Stream broadcasting, but no listeners for `' + type + '`', DEBUG);
|
|
return false;
|
|
}
|
|
|
|
handlers = handlers.slice(0);
|
|
for (i = 0, l = handlers.length; i < l; i++) {
|
|
handlers[i](data);
|
|
}
|
|
return true;
|
|
};
|
|
|
|
Stream.prototype.on = function(type, callback) {
|
|
var events = this.events = this.events || {},
|
|
handlers = events[type] = events[type] || [];
|
|
|
|
if(typeof callback !== 'function') {
|
|
dust.log('No callback function provided for `' + type + '` event listener', WARN);
|
|
} else {
|
|
handlers.push(callback);
|
|
}
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Pipes to a WritableStream. Note that backpressure isn't implemented,
|
|
* so we just write as fast as we can.
|
|
* @param stream {WritableStream}
|
|
* @return self
|
|
*/
|
|
Stream.prototype.pipe = function(stream) {
|
|
if(typeof stream.write !== 'function' ||
|
|
typeof stream.end !== 'function') {
|
|
dust.log('Incompatible stream passed to `pipe`', WARN);
|
|
return this;
|
|
}
|
|
|
|
var destEnded = false;
|
|
|
|
if(typeof stream.emit === 'function') {
|
|
stream.emit('pipe', this);
|
|
}
|
|
|
|
if(typeof stream.on === 'function') {
|
|
stream.on('error', function() {
|
|
destEnded = true;
|
|
});
|
|
}
|
|
|
|
return this
|
|
.on('data', function(data) {
|
|
if(destEnded) {
|
|
return;
|
|
}
|
|
try {
|
|
stream.write(data, 'utf8');
|
|
} catch (err) {
|
|
dust.log(err, ERROR);
|
|
}
|
|
})
|
|
.on('end', function() {
|
|
if(destEnded) {
|
|
return;
|
|
}
|
|
try {
|
|
stream.end();
|
|
destEnded = true;
|
|
} catch (err) {
|
|
dust.log(err, ERROR);
|
|
}
|
|
});
|
|
};
|
|
|
|
function Chunk(root, next, taps) {
|
|
this.root = root;
|
|
this.next = next;
|
|
this.data = []; //ie7 perf
|
|
this.flushable = false;
|
|
this.taps = taps;
|
|
}
|
|
|
|
Chunk.prototype.write = function(data) {
|
|
var taps = this.taps;
|
|
|
|
if (taps) {
|
|
data = taps.go(data);
|
|
}
|
|
this.data.push(data);
|
|
return this;
|
|
};
|
|
|
|
Chunk.prototype.end = function(data) {
|
|
if (data) {
|
|
this.write(data);
|
|
}
|
|
this.flushable = true;
|
|
this.root.flush();
|
|
return this;
|
|
};
|
|
|
|
Chunk.prototype.map = function(callback) {
|
|
var cursor = new Chunk(this.root, this.next, this.taps),
|
|
branch = new Chunk(this.root, cursor, this.taps);
|
|
|
|
this.next = branch;
|
|
this.flushable = true;
|
|
try {
|
|
callback(branch);
|
|
} catch(err) {
|
|
dust.log(err, ERROR);
|
|
branch.setError(err);
|
|
}
|
|
return cursor;
|
|
};
|
|
|
|
Chunk.prototype.tap = function(tap) {
|
|
var taps = this.taps;
|
|
|
|
if (taps) {
|
|
this.taps = taps.push(tap);
|
|
} else {
|
|
this.taps = new Tap(tap);
|
|
}
|
|
return this;
|
|
};
|
|
|
|
Chunk.prototype.untap = function() {
|
|
this.taps = this.taps.tail;
|
|
return this;
|
|
};
|
|
|
|
Chunk.prototype.render = function(body, context) {
|
|
return body(this, context);
|
|
};
|
|
|
|
Chunk.prototype.reference = function(elem, context, auto, filters) {
|
|
if (typeof elem === 'function') {
|
|
elem = elem.apply(context.current(), [this, context, null, {auto: auto, filters: filters}]);
|
|
if (elem instanceof Chunk) {
|
|
return elem;
|
|
} else {
|
|
return this.reference(elem, context, auto, filters);
|
|
}
|
|
}
|
|
if (dust.isThenable(elem)) {
|
|
return this.await(elem, context, null, auto, filters);
|
|
} else if (dust.isStreamable(elem)) {
|
|
return this.stream(elem, context, null, auto, filters);
|
|
} else if (!dust.isEmpty(elem)) {
|
|
return this.write(dust.filter(elem, auto, filters, context));
|
|
} else {
|
|
return this;
|
|
}
|
|
};
|
|
|
|
Chunk.prototype.section = function(elem, context, bodies, params) {
|
|
var body = bodies.block,
|
|
skip = bodies['else'],
|
|
chunk = this,
|
|
i, len, head;
|
|
|
|
if (typeof elem === 'function' && !dust.isTemplateFn(elem)) {
|
|
try {
|
|
elem = elem.apply(context.current(), [this, context, bodies, params]);
|
|
} catch(err) {
|
|
dust.log(err, ERROR);
|
|
return this.setError(err);
|
|
}
|
|
// Functions that return chunks are assumed to have handled the chunk manually.
|
|
// Make that chunk the current one and go to the next method in the chain.
|
|
if (elem instanceof Chunk) {
|
|
return elem;
|
|
}
|
|
}
|
|
|
|
if (dust.isEmptyObject(bodies)) {
|
|
// No bodies to render, and we've already invoked any function that was available in
|
|
// hopes of returning a Chunk.
|
|
return chunk;
|
|
}
|
|
|
|
if (!dust.isEmptyObject(params)) {
|
|
context = context.push(params);
|
|
}
|
|
|
|
/*
|
|
Dust's default behavior is to enumerate over the array elem, passing each object in the array to the block.
|
|
When elem resolves to a value or object instead of an array, Dust sets the current context to the value
|
|
and renders the block one time.
|
|
*/
|
|
if (dust.isArray(elem)) {
|
|
if (body) {
|
|
len = elem.length;
|
|
if (len > 0) {
|
|
head = context.stack && context.stack.head || {};
|
|
head.$len = len;
|
|
for (i = 0; i < len; i++) {
|
|
head.$idx = i;
|
|
chunk = body(chunk, context.push(elem[i], i, len));
|
|
}
|
|
head.$idx = undefined;
|
|
head.$len = undefined;
|
|
return chunk;
|
|
} else if (skip) {
|
|
return skip(this, context);
|
|
}
|
|
}
|
|
} else if (dust.isThenable(elem)) {
|
|
return this.await(elem, context, bodies);
|
|
} else if (dust.isStreamable(elem)) {
|
|
return this.stream(elem, context, bodies);
|
|
} else if (elem === true) {
|
|
// true is truthy but does not change context
|
|
if (body) {
|
|
return body(this, context);
|
|
}
|
|
} else if (elem || elem === 0) {
|
|
// everything that evaluates to true are truthy ( e.g. Non-empty strings and Empty objects are truthy. )
|
|
// zero is truthy
|
|
// for anonymous functions that did not returns a chunk, truthiness is evaluated based on the return value
|
|
if (body) {
|
|
return body(this, context.push(elem));
|
|
}
|
|
// nonexistent, scalar false value, scalar empty string, null,
|
|
// undefined are all falsy
|
|
} else if (skip) {
|
|
return skip(this, context);
|
|
}
|
|
dust.log('Section without corresponding key in template `' + context.getTemplateName() + '`', DEBUG);
|
|
return this;
|
|
};
|
|
|
|
Chunk.prototype.exists = function(elem, context, bodies) {
|
|
var body = bodies.block,
|
|
skip = bodies['else'];
|
|
|
|
if (!dust.isEmpty(elem)) {
|
|
if (body) {
|
|
return body(this, context);
|
|
}
|
|
dust.log('No block for exists check in template `' + context.getTemplateName() + '`', DEBUG);
|
|
} else if (skip) {
|
|
return skip(this, context);
|
|
}
|
|
return this;
|
|
};
|
|
|
|
Chunk.prototype.notexists = function(elem, context, bodies) {
|
|
var body = bodies.block,
|
|
skip = bodies['else'];
|
|
|
|
if (dust.isEmpty(elem)) {
|
|
if (body) {
|
|
return body(this, context);
|
|
}
|
|
dust.log('No block for not-exists check in template `' + context.getTemplateName() + '`', DEBUG);
|
|
} else if (skip) {
|
|
return skip(this, context);
|
|
}
|
|
return this;
|
|
};
|
|
|
|
Chunk.prototype.block = function(elem, context, bodies) {
|
|
var body = elem || bodies.block;
|
|
|
|
if (body) {
|
|
return body(this, context);
|
|
}
|
|
return this;
|
|
};
|
|
|
|
Chunk.prototype.partial = function(elem, context, partialContext, params) {
|
|
var head;
|
|
|
|
if(params === undefined) {
|
|
// Compatibility for < 2.7.0 where `partialContext` did not exist
|
|
params = partialContext;
|
|
partialContext = context;
|
|
}
|
|
|
|
if (!dust.isEmptyObject(params)) {
|
|
partialContext = partialContext.clone();
|
|
head = partialContext.pop();
|
|
partialContext = partialContext.push(params)
|
|
.push(head);
|
|
}
|
|
|
|
if (dust.isTemplateFn(elem)) {
|
|
// The eventual result of evaluating `elem` is a partial name
|
|
// Load the partial after getting its name and end the async chunk
|
|
return this.capture(elem, context, function(name, chunk) {
|
|
partialContext.templateName = name;
|
|
load(name, chunk, partialContext).end();
|
|
});
|
|
} else {
|
|
partialContext.templateName = elem;
|
|
return load(elem, this, partialContext);
|
|
}
|
|
};
|
|
|
|
Chunk.prototype.helper = function(name, context, bodies, params, auto) {
|
|
var chunk = this,
|
|
filters = params.filters,
|
|
ret;
|
|
|
|
// Pre-2.7.1 compat: if auto is undefined, it's an old template. Automatically escape
|
|
if (auto === undefined) {
|
|
auto = 'h';
|
|
}
|
|
|
|
// handle invalid helpers, similar to invalid filters
|
|
if(dust.helpers[name]) {
|
|
try {
|
|
ret = dust.helpers[name](chunk, context, bodies, params);
|
|
if (ret instanceof Chunk) {
|
|
return ret;
|
|
}
|
|
if(typeof filters === 'string') {
|
|
filters = filters.split('|');
|
|
}
|
|
if (!dust.isEmptyObject(bodies)) {
|
|
return chunk.section(ret, context, bodies, params);
|
|
}
|
|
// Helpers act slightly differently from functions in context in that they will act as
|
|
// a reference if they are self-closing (due to grammar limitations)
|
|
// In the Chunk.await function we check to make sure bodies is null before acting as a reference
|
|
return chunk.reference(ret, context, auto, filters);
|
|
} catch(err) {
|
|
dust.log('Error in helper `' + name + '`: ' + err.message, ERROR);
|
|
return chunk.setError(err);
|
|
}
|
|
} else {
|
|
dust.log('Helper `' + name + '` does not exist', WARN);
|
|
return chunk;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Reserve a chunk to be evaluated once a thenable is resolved or rejected
|
|
* @param thenable {Thenable} the target thenable to await
|
|
* @param context {Context} context to use to render the deferred chunk
|
|
* @param bodies {Object} must contain a "body", may contain an "error"
|
|
* @param auto {String} automatically apply this filter if the Thenable is a reference
|
|
* @param filters {Array} apply these filters if the Thenable is a reference
|
|
* @return {Chunk}
|
|
*/
|
|
Chunk.prototype.await = function(thenable, context, bodies, auto, filters) {
|
|
return this.map(function(chunk) {
|
|
thenable.then(function(data) {
|
|
if (bodies) {
|
|
chunk = chunk.section(data, context, bodies);
|
|
} else {
|
|
// Actually a reference. Self-closing sections don't render
|
|
chunk = chunk.reference(data, context, auto, filters);
|
|
}
|
|
chunk.end();
|
|
}, function(err) {
|
|
var errorBody = bodies && bodies.error;
|
|
if(errorBody) {
|
|
chunk.render(errorBody, context.push(err)).end();
|
|
} else {
|
|
dust.log('Unhandled promise rejection in `' + context.getTemplateName() + '`', INFO);
|
|
chunk.end();
|
|
}
|
|
});
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Reserve a chunk to be evaluated with the contents of a streamable.
|
|
* Currently an error event will bomb out the stream. Once an error
|
|
* is received, we push it to an {:error} block if one exists, and log otherwise,
|
|
* then stop listening to the stream.
|
|
* @param streamable {Streamable} the target streamable that will emit events
|
|
* @param context {Context} context to use to render each thunk
|
|
* @param bodies {Object} must contain a "body", may contain an "error"
|
|
* @return {Chunk}
|
|
*/
|
|
Chunk.prototype.stream = function(stream, context, bodies, auto, filters) {
|
|
var body = bodies && bodies.block,
|
|
errorBody = bodies && bodies.error;
|
|
return this.map(function(chunk) {
|
|
var ended = false;
|
|
stream
|
|
.on('data', function data(thunk) {
|
|
if(ended) {
|
|
return;
|
|
}
|
|
if(body) {
|
|
// Fork a new chunk out of the blockstream so that we can flush it independently
|
|
chunk = chunk.map(function(chunk) {
|
|
chunk.render(body, context.push(thunk)).end();
|
|
});
|
|
} else if(!bodies) {
|
|
// When actually a reference, don't fork, just write into the master async chunk
|
|
chunk = chunk.reference(thunk, context, auto, filters);
|
|
}
|
|
})
|
|
.on('error', function error(err) {
|
|
if(ended) {
|
|
return;
|
|
}
|
|
if(errorBody) {
|
|
chunk.render(errorBody, context.push(err));
|
|
} else {
|
|
dust.log('Unhandled stream error in `' + context.getTemplateName() + '`', INFO);
|
|
}
|
|
if(!ended) {
|
|
ended = true;
|
|
chunk.end();
|
|
}
|
|
})
|
|
.on('end', function end() {
|
|
if(!ended) {
|
|
ended = true;
|
|
chunk.end();
|
|
}
|
|
});
|
|
});
|
|
};
|
|
|
|
Chunk.prototype.capture = function(body, context, callback) {
|
|
return this.map(function(chunk) {
|
|
var stub = new Stub(function(err, out) {
|
|
if (err) {
|
|
chunk.setError(err);
|
|
} else {
|
|
callback(out, chunk);
|
|
}
|
|
});
|
|
body(stub.head, context).end();
|
|
});
|
|
};
|
|
|
|
Chunk.prototype.setError = function(err) {
|
|
this.error = err;
|
|
this.root.flush();
|
|
return this;
|
|
};
|
|
|
|
// Chunk aliases
|
|
for(var f in Chunk.prototype) {
|
|
if(dust._aliases[f]) {
|
|
Chunk.prototype[dust._aliases[f]] = Chunk.prototype[f];
|
|
}
|
|
}
|
|
|
|
function Tap(head, tail) {
|
|
this.head = head;
|
|
this.tail = tail;
|
|
}
|
|
|
|
Tap.prototype.push = function(tap) {
|
|
return new Tap(tap, this);
|
|
};
|
|
|
|
Tap.prototype.go = function(value) {
|
|
var tap = this;
|
|
|
|
while(tap) {
|
|
value = tap.head(value);
|
|
tap = tap.tail;
|
|
}
|
|
return value;
|
|
};
|
|
|
|
var HCHARS = /[&<>"']/,
|
|
AMP = /&/g,
|
|
LT = /</g,
|
|
GT = />/g,
|
|
QUOT = /\"/g,
|
|
SQUOT = /\'/g;
|
|
|
|
dust.escapeHtml = function(s) {
|
|
if (typeof s === "string" || (s && typeof s.toString === "function")) {
|
|
if (typeof s !== "string") {
|
|
s = s.toString();
|
|
}
|
|
if (!HCHARS.test(s)) {
|
|
return s;
|
|
}
|
|
return s.replace(AMP,'&').replace(LT,'<').replace(GT,'>').replace(QUOT,'"').replace(SQUOT, ''');
|
|
}
|
|
return s;
|
|
};
|
|
|
|
var BS = /\\/g,
|
|
FS = /\//g,
|
|
CR = /\r/g,
|
|
LS = /\u2028/g,
|
|
PS = /\u2029/g,
|
|
NL = /\n/g,
|
|
LF = /\f/g,
|
|
SQ = /'/g,
|
|
DQ = /"/g,
|
|
TB = /\t/g;
|
|
|
|
dust.escapeJs = function(s) {
|
|
if (typeof s === 'string') {
|
|
return s
|
|
.replace(BS, '\\\\')
|
|
.replace(FS, '\\/')
|
|
.replace(DQ, '\\"')
|
|
.replace(SQ, '\\\'')
|
|
.replace(CR, '\\r')
|
|
.replace(LS, '\\u2028')
|
|
.replace(PS, '\\u2029')
|
|
.replace(NL, '\\n')
|
|
.replace(LF, '\\f')
|
|
.replace(TB, '\\t');
|
|
}
|
|
return s;
|
|
};
|
|
|
|
dust.escapeJSON = function(o) {
|
|
if (!JSON) {
|
|
dust.log('JSON is undefined; could not escape `' + o + '`', WARN);
|
|
return o;
|
|
} else {
|
|
return JSON.stringify(o)
|
|
.replace(LS, '\\u2028')
|
|
.replace(PS, '\\u2029')
|
|
.replace(LT, '\\u003c');
|
|
}
|
|
};
|
|
|
|
return dust;
|
|
|
|
}));
|
|
|
|
if (typeof define === "function" && define.amd && define.amd.dust === true) {
|
|
define(["require", "dust.core"], function(require, dust) {
|
|
dust.onLoad = function(name, cb) {
|
|
require([name], function() {
|
|
cb();
|
|
});
|
|
};
|
|
return dust;
|
|
});
|
|
}
|