mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-27 12:07:19 +00:00
374 lines
11 KiB
JavaScript
374 lines
11 KiB
JavaScript
/*\
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title: $:/core/modules/utils.js
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type: application/javascript
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module-type: utils
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Various static utility functions.
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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// Check if an object has a property
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exports.hop = function(object,property) {
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return Object.prototype.hasOwnProperty.call(object,property);
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};
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/*
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Push entries onto an array, removing them first if they already exist in the array
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array: array to modify
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value: a single value to push or an array of values to push
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*/
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exports.pushTop = function(array,value) {
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var t,p;
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if($tw.utils.isArray(value)) {
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// Remove any array entries that are duplicated in the new values
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for(t=0; t<value.length; t++) {
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p = array.indexOf(value[t]);
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if(p !== -1) {
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array.splice(p,1);
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}
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}
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// Push the values on top of the main array
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array.push.apply(array,value);
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} else {
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p = array.indexOf(value);
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if(p !== -1) {
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array.splice(p,1);
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}
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array.push(value);
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}
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};
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/*
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Remove entries from an array
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array: array to modify
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value: a single value to remove, or an array of values to remove
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*/
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exports.removeArrayEntries = function(array,value) {
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var t,p;
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if($tw.utils.isArray(value)) {
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for(t=0; t<value.length; t++) {
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p = array.indexOf(value[t]);
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if(p !== -1) {
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array.splice(p,1);
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}
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}
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} else {
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p = array.indexOf(value);
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if(p !== -1) {
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array.splice(p,1);
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}
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}
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};
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exports.deepCopy = function(object) {
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var result,t;
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if($tw.utils.isArray(object)) {
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// Copy arrays
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result = object.slice(0);
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} else if(typeof object === "object") {
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result = {};
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for(t in object) {
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if(object[t] !== undefined) {
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result[t] = $tw.utils.deepCopy(object[t]);
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}
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}
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} else {
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result = object;
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}
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return result;
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};
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exports.extendDeepCopy = function(object,extendedProperties) {
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var result = $tw.utils.deepCopy(object),t;
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for(t in extendedProperties) {
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if(extendedProperties[t] !== undefined) {
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result[t] = $tw.utils.deepCopy(extendedProperties[t]);
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}
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}
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return result;
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};
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exports.formatDateString = function (date,template) {
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var t = template.replace(/0hh12/g,$tw.utils.pad($tw.utils.getHours12(date)));
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t = t.replace(/hh12/g,$tw.utils.getHours12(date));
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t = t.replace(/0hh/g,$tw.utils.pad(date.getHours()));
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t = t.replace(/hh/g,date.getHours());
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t = t.replace(/mmm/g,$tw.config.dateFormats.shortMonths[date.getMonth()]);
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t = t.replace(/0mm/g,$tw.utils.pad(date.getMinutes()));
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t = t.replace(/mm/g,date.getMinutes());
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t = t.replace(/0ss/g,$tw.utils.pad(date.getSeconds()));
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t = t.replace(/ss/g,date.getSeconds());
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t = t.replace(/[ap]m/g,$tw.utils.getAmPm(date).toLowerCase());
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t = t.replace(/[AP]M/g,$tw.utils.getAmPm(date).toUpperCase());
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t = t.replace(/wYYYY/g,$tw.utils.getYearForWeekNo(date));
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t = t.replace(/wYY/g,$tw.utils.pad($tw.utils.getYearForWeekNo(date)-2000));
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t = t.replace(/YYYY/g,date.getFullYear());
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t = t.replace(/YY/g,$tw.utils.pad(date.getFullYear()-2000));
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t = t.replace(/MMM/g,$tw.config.dateFormats.months[date.getMonth()]);
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t = t.replace(/0MM/g,$tw.utils.pad(date.getMonth()+1));
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t = t.replace(/MM/g,date.getMonth()+1);
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t = t.replace(/0WW/g,$tw.utils.pad($tw.utils.getWeek(date)));
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t = t.replace(/WW/g,$tw.utils.getWeek(date));
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t = t.replace(/DDD/g,$tw.config.dateFormats.days[date.getDay()]);
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t = t.replace(/ddd/g,$tw.config.dateFormats.shortDays[date.getDay()]);
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t = t.replace(/0DD/g,$tw.utils.pad(date.getDate()));
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t = t.replace(/DDth/g,date.getDate()+$tw.utils.getDaySuffix(date));
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t = t.replace(/DD/g,date.getDate());
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var tz = date.getTimezoneOffset();
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var atz = Math.abs(tz);
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t = t.replace(/TZD/g,(tz < 0 ? '+' : '-') + $tw.utils.pad(Math.floor(atz / 60)) + ':' + $tw.utils.pad(atz % 60));
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t = t.replace(/\\/g,"");
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return t;
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};
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exports.getAmPm = function(date) {
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return date.getHours() >= 12 ? $tw.config.dateFormats.pm : $tw.config.dateFormats.am;
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};
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exports.getDaySuffix = function(date) {
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return $tw.config.dateFormats.daySuffixes[date.getDate()-1];
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};
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exports.getWeek = function(date) {
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var dt = new Date(date.getTime());
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var d = dt.getDay();
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if(d === 0) d=7;// JavaScript Sun=0, ISO Sun=7
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dt.setTime(dt.getTime()+(4-d)*86400000);// shift day to Thurs of same week to calculate weekNo
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var n = Math.floor((dt.getTime()-new Date(dt.getFullYear(),0,1)+3600000)/86400000);
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return Math.floor(n/7)+1;
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};
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exports.getYearForWeekNo = function(date) {
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var dt = new Date(date.getTime());
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var d = dt.getDay();
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if(d === 0) d=7;// JavaScript Sun=0, ISO Sun=7
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dt.setTime(dt.getTime()+(4-d)*86400000);// shift day to Thurs of same week
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return dt.getFullYear();
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};
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exports.getHours12 = function(date) {
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var h = date.getHours();
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return h > 12 ? h-12 : ( h > 0 ? h : 12 );
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};
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// Convert & to "&", < to "<", > to ">" and " to """
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exports.htmlEncode = function(s)
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{
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if(s) {
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return s.toString().replace(/&/mg,"&").replace(/</mg,"<").replace(/>/mg,">").replace(/\"/mg,""");
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} else {
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return "";
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}
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};
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// Converts all HTML entities to their character equivalents
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exports.entityDecode = function(s) {
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var e = s.substr(1,s.length-2); // Strip the & and the ;
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if(e.charAt(0) === "#") {
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if(e.charAt(1) === "x" || e.charAt(1) === "X") {
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return String.fromCharCode(parseInt(e.substr(2),16));
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} else {
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return String.fromCharCode(parseInt(e.substr(1),10));
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}
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} else {
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var c = $tw.config.htmlEntities[e];
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if(c) {
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return String.fromCharCode(c);
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} else {
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return s; // Couldn't convert it as an entity, just return it raw
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}
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}
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};
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exports.unescapeLineBreaks = function(s) {
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return s.replace(/\\n/mg,"\n").replace(/\\b/mg," ").replace(/\\s/mg,"\\").replace(/\r/mg,"");
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};
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/*
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* Returns an escape sequence for given character. Uses \x for characters <=
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* 0xFF to save space, \u for the rest.
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*
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* The code needs to be in sync with th code template in the compilation
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* function for "action" nodes.
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*/
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// Copied from peg.js, thanks to David Majda
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exports.escape = function(ch) {
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var charCode = ch.charCodeAt(0);
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if (charCode <= 0xFF) {
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return '\\x' + $tw.utils.pad(charCode.toString(16).toUpperCase());
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} else {
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return '\\u' + $tw.utils.pad(charCode.toString(16).toUpperCase(),4);
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}
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};
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// Turns a string into a legal JavaScript string
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// Copied from peg.js, thanks to David Majda
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exports.stringify = function(s) {
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/*
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* ECMA-262, 5th ed., 7.8.4: All characters may appear literally in a string
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* literal except for the closing quote character, backslash, carriage return,
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* line separator, paragraph separator, and line feed. Any character may
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* appear in the form of an escape sequence.
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*
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* For portability, we also escape escape all non-ASCII characters.
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*/
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return s
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.replace(/\\/g, '\\\\') // backslash
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.replace(/"/g, '\\"') // double quote character
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.replace(/'/g, "\\'") // single quote character
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.replace(/\r/g, '\\r') // carriage return
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.replace(/\n/g, '\\n') // line feed
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.replace(/[\x80-\uFFFF]/g, exports.escape); // non-ASCII characters
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};
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exports.nextTick = function(fn) {
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/*global window: false */
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if(typeof window !== "undefined") {
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// Apparently it would be faster to use postMessage - http://dbaron.org/log/20100309-faster-timeouts
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window.setTimeout(fn,4);
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} else {
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process.nextTick(fn);
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}
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};
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/*
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Determines whether element 'a' contains element 'b'
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Code thanks to John Resig, http://ejohn.org/blog/comparing-document-position/
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*/
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exports.domContains = function(a,b) {
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return a.contains ?
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a != b && a.contains(b) :
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!!(a.compareDocumentPosition(b) & 16);
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};
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exports.hasClass = function(el,className) {
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return el.className.split(" ").indexOf(className) !== -1;
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};
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exports.addClass = function(el,className) {
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var c = el.className.split(" ");
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if(c.indexOf(className) === -1) {
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c.push(className);
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}
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el.className = c.join(" ");
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};
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exports.removeClass = function(el,className) {
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var c = el.className.split(" "),
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p = c.indexOf(className);
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if(p !== -1) {
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c.splice(p,1);
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el.className = c.join(" ");
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}
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};
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exports.toggleClass = function(el,className,status) {
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if(status === undefined) {
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status = !exports.hasClass(el,className);
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}
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if(status) {
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exports.addClass(el,className);
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} else {
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exports.removeClass(el,className);
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}
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};
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exports.applyStyleSheet = function(id,css) {
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var el = document.getElementById(id);
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if(document.createStyleSheet) { // Older versions of IE
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if(el) {
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el.parentNode.removeChild(el);
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}
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document.getElementsByTagName("head")[0].insertAdjacentHTML("beforeEnd",
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' <style id="' + id + '" type="text/css">' + css + '</style>'); // fails without
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} else { // Modern browsers
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if(el) {
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el.replaceChild(document.createTextNode(css), el.firstChild);
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} else {
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el = document.createElement("style");
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el.type = "text/css";
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el.id = id;
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el.appendChild(document.createTextNode(css));
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document.getElementsByTagName("head")[0].appendChild(el);
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}
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}
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};
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/*
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Convert a hyphenated CSS property name into a camel case one
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*/
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exports.unHyphenateCss = function(propName) {
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if($tw.browser.unHyphenateCss) {
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return propName.replace(/-([a-z])/gi, function(match0,match1) {
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return match1.toUpperCase();
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});
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} else {
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return propName;
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}
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};
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/*
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Parse a version number string of the form "1.2.3", "1.2.3.a4", or "1.2.3.b4" into:
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{major: <number>, minor: <number>, revision: <number>, alpha: <number>, beta: <number>}
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*/
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exports.parseVersion = function(versionString) {
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versionString = versionString || "0.0.0";
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var components = versionString.split("."),
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version = {
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major: components[0] ? parseInt(components[0],10) : null,
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minor: components[1] ? parseInt(components[1],10) : null,
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revision: components[2] ? parseInt(components[2],10) : null
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};
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if(components[3]) {
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if(components[3].charAt(0) === "a") {
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version.alpha = parseInt(components[3].substr(1),10);
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} else if(components[3].charAt(0) === "b") {
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version.beta = parseInt(components[3].substr(1),10);
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}
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}
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return version;
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};
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exports.getVersionString = function() {
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return ($tw.version.major || "0") + "." +
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($tw.version.minor || "0") + "." +
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($tw.version.revision || "0") +
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($tw.version.alpha ? ".a" + $tw.version.alpha : "") +
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($tw.version.beta ? ".b" + $tw.version.beta : "");
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};
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/*
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Extract the version number from the meta tag or from the boot file
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*/
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if($tw.browser) {
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// Browser version
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exports.extractVersionInfo = function() {
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var metatags = document.getElementsByTagName("meta");
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for(var t=0; t<metatags.length; t++) {
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var m = metatags[t];
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if(m.name === "tiddlywiki-version") {
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return $tw.utils.parseVersion(m.content);
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}
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}
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return $tw.utils.parseVersion();
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};
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} else {
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// Server version
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exports.extractVersionInfo = function() {
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var fs = require("fs");
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return $tw.utils.parseVersion(fs.readFileSync($tw.boot.bootPath + "/version.txt").toString("utf8"));
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};
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}
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})();
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