File: chat-websocket/node_modules/jade/runtime.js

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File: chat-websocket/node_modules/jade/runtime.js
Role: Auxiliary script
Content type: text/plain
Description: Auxiliary script
Class: Terminal Crossword
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Date: 2 years ago
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jade = (function(exports){ /*! * Jade - runtime * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca> * MIT Licensed */ /** * Lame Array.isArray() polyfill for now. */ if (!Array.isArray) { Array.isArray = function(arr){ return '[object Array]' == Object.prototype.toString.call(arr); }; } /** * Lame Object.keys() polyfill for now. */ if (!Object.keys) { Object.keys = function(obj){ var arr = []; for (var key in obj) { if (obj.hasOwnProperty(key)) { arr.push(key); } } return arr; } } /** * Merge two attribute objects giving precedence * to values in object `b`. Classes are special-cased * allowing for arrays and merging/joining appropriately * resulting in a string. * * @param {Object} a * @param {Object} b * @return {Object} a * @api private */ exports.merge = function merge(a, b) { var ac = a['class']; var bc = b['class']; if (ac || bc) { ac = ac || []; bc = bc || []; if (!Array.isArray(ac)) ac = [ac]; if (!Array.isArray(bc)) bc = [bc]; ac = ac.filter(nulls); bc = bc.filter(nulls); a['class'] = ac.concat(bc).join(' '); } for (var key in b) { if (key != 'class') { a[key] = b[key]; } } return a; }; /** * Filter null `val`s. * * @param {Mixed} val * @return {Mixed} * @api private */ function nulls(val) { return val != null; } /** * Render the given attributes object. * * @param {Object} obj * @param {Object} escaped * @return {String} * @api private */ exports.attrs = function attrs(obj, escaped){ var buf = [] , terse = obj.terse; delete obj.terse; var keys = Object.keys(obj) , len = keys.length; if (len) { buf.push(''); for (var i = 0; i < len; ++i) { var key = keys[i] , val = obj[key]; if ('boolean' == typeof val || null == val) { if (val) { terse ? buf.push(key) : buf.push(key + '="' + key + '"'); } } else if (0 == key.indexOf('data') && 'string' != typeof val) { buf.push(key + "='" + JSON.stringify(val) + "'"); } else if ('class' == key && Array.isArray(val)) { buf.push(key + '="' + exports.escape(val.join(' ')) + '"'); } else if (escaped && escaped[key]) { buf.push(key + '="' + exports.escape(val) + '"'); } else { buf.push(key + '="' + val + '"'); } } } return buf.join(' '); }; /** * Escape the given string of `html`. * * @param {String} html * @return {String} * @api private */ exports.escape = function escape(html){ return String(html) .replace(/&(?!(\w+|\#\d+);)/g, '&amp;') .replace(/</g, '&lt;') .replace(/>/g, '&gt;') .replace(/"/g, '&quot;'); }; /** * Re-throw the given `err` in context to the * the jade in `filename` at the given `lineno`. * * @param {Error} err * @param {String} filename * @param {String} lineno * @api private */ exports.rethrow = function rethrow(err, filename, lineno){ if (!filename) throw err; var context = 3 , str = require('fs').readFileSync(filename, 'utf8') , lines = str.split('\n') , start = Math.max(lineno - context, 0) , end = Math.min(lines.length, lineno + context); // Error context var context = lines.slice(start, end).map(function(line, i){ var curr = i + start + 1; return (curr == lineno ? ' > ' : ' ') + curr + '| ' + line; }).join('\n'); // Alter exception message err.path = filename; err.message = (filename || 'Jade') + ':' + lineno + '\n' + context + '\n\n' + err.message; throw err; }; return exports; })({});