111 lines
2.5 KiB
JavaScript
111 lines
2.5 KiB
JavaScript
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/*!
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* Sitemap
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* Copyright(c) 2011 Eugene Kalinin
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* MIT Licensed
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*/
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var _ = require('underscore');
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/**
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* Exit with the given `str`.
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*
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* @param {String} str
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*/
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exports.abort = function (str) {
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console.error(str);
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process.exit(1);
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}
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/**
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* Escapes special characters in text.
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*
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* @param {String} text
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*/
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exports.htmlEscape = function (text) {
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return text.replace(/&/g,'&').
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replace(/</g,'<').
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replace(/>/g,'>').
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replace(/"/g,'"').
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replace(/'/g,''');
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}
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/**
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* Pads the left-side of a string with a specific
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* set of characters.
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*
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* @param {Object} n
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* @param {Number} len
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* @param {String} chr
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*/
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exports.lpad = function (n, len, chr) {
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var res = n.toString()
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, chr = chr || '0'
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, leading = (res.substr(0, 1) === '-') ? true : false;
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//If left side of string is a minus sign (negative number), we want to ignore that in the padding process
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if(leading){
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res = res.substr(1); //cut-off the leading '-'
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}
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while (res.length < len) {
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res = chr + res;
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}
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if(leading){ //If we initially cutoff the leading '-', we add it again here
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res = '-' + res;
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}
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return res;
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}
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/**
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*
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* @param {Array} arr
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*/
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exports.distinctArray = function (arr) {
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var hash = {}
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, res = []
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, arr_length = arr.length;
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while (arr_length-- ) {
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hash[arr[arr_length]] = true;
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}
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for (key in hash) {
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res.push(key);
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}
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return res;
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}
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exports.chunkArray = function(arr, chunkSize) {
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var lists = _.groupBy(arr, function(element, index) {
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return Math.floor(index/chunkSize);
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});
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lists = _.toArray(lists);
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return lists;
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}
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exports.getTimestamp = function() {
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return (new Date()).getTime();
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}
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exports.getTimestampFromDate = function(dt, bRealtime) {
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var timestamp =[ dt.getFullYear(), exports.lpad(dt.getMonth()+1, 2),
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exports.lpad(dt.getDate(), 2) ].join('-');
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// Indicate that lastmod should include minutes and seconds (and timezone)
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if ( bRealtime && bRealtime === true ) {
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timestamp += 'T';
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timestamp += [ exports.lpad(dt.getHours(), 2),
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exports.lpad(dt.getMinutes(), 2),
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exports.lpad(dt.getSeconds(), 2)
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].join(':');
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timestamp += ( dt.getTimezoneOffset() >= 0 ? '+' : '');
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timestamp += [ exports.lpad(parseInt(dt.getTimezoneOffset()/60, 10 ), 2),
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exports.lpad(dt.getTimezoneOffset() % 60, 2)
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].join ( ':' );
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}
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return timestamp;
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}
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