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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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Add m-esr52 at 52.6.0
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+/*!
+ dates
+ These functions are based on microformats implied rules for parsing date fragments from text.
+ They are not generalist date utilities and should only be used with the isodate.js module of this library.
+
+ Copyright (C) 2010 - 2015 Glenn Jones. All Rights Reserved.
+ MIT License: https://raw.github.com/glennjones/microformat-shiv/master/license.txt
+ Dependencies utilities.js, isodate.js
+*/
+
+
+var Modules = (function (modules) {
+
+ modules.dates = {
+
+
+ /**
+ * does text contain am
+ *
+ * @param {String} text
+ * @return {Boolean}
+ */
+ hasAM: function( text ) {
+ text = text.toLowerCase();
+ return(text.indexOf('am') > -1 || text.indexOf('a.m.') > -1);
+ },
+
+
+ /**
+ * does text contain pm
+ *
+ * @param {String} text
+ * @return {Boolean}
+ */
+ hasPM: function( text ) {
+ text = text.toLowerCase();
+ return(text.indexOf('pm') > -1 || text.indexOf('p.m.') > -1);
+ },
+
+
+ /**
+ * remove am and pm from text and return it
+ *
+ * @param {String} text
+ * @return {String}
+ */
+ removeAMPM: function( text ) {
+ return text.replace('pm', '').replace('p.m.', '').replace('am', '').replace('a.m.', '');
+ },
+
+
+ /**
+ * simple test of whether ISO date string is a duration i.e. PY17M or PW12
+ *
+ * @param {String} text
+ * @return {Boolean}
+ */
+ isDuration: function( text ) {
+ if(modules.utils.isString( text )){
+ text = text.toLowerCase();
+ if(modules.utils.startWith(text, 'p') ){
+ return true;
+ }
+ }
+ return false;
+ },
+
+
+ /**
+ * is text a time or timezone
+ * i.e. HH-MM-SS or z+-HH-MM-SS 08:43 | 15:23:00:0567 | 10:34pm | 10:34 p.m. | +01:00:00 | -02:00 | z15:00 | 0843
+ *
+ * @param {String} text
+ * @return {Boolean}
+ */
+ isTime: function( text ) {
+ if(modules.utils.isString(text)){
+ text = text.toLowerCase();
+ text = modules.utils.trim( text );
+ // start with timezone char
+ if( text.match(':') && ( modules.utils.startWith(text, 'z') || modules.utils.startWith(text, '-') || modules.utils.startWith(text, '+') )) {
+ return true;
+ }
+ // has ante meridiem or post meridiem
+ if( text.match(/^[0-9]/) &&
+ ( this.hasAM(text) || this.hasPM(text) )) {
+ return true;
+ }
+ // contains time delimiter but not datetime delimiter
+ if( text.match(':') && !text.match(/t|\s/) ) {
+ return true;
+ }
+
+ // if it's a number of 2, 4 or 6 chars
+ if(modules.utils.isNumber(text)){
+ if(text.length === 2 || text.length === 4 || text.length === 6){
+ return true;
+ }
+ }
+ }
+ return false;
+ },
+
+
+ /**
+ * parses a time from text and returns 24hr time string
+ * i.e. 5:34am = 05:34:00 and 1:52:04p.m. = 13:52:04
+ *
+ * @param {String} text
+ * @return {String}
+ */
+ parseAmPmTime: function( text ) {
+ var out = text,
+ times = [];
+
+ // if the string has a text : or am or pm
+ if(modules.utils.isString(out)) {
+ //text = text.toLowerCase();
+ text = text.replace(/[ ]+/g, '');
+
+ if(text.match(':') || this.hasAM(text) || this.hasPM(text)) {
+
+ if(text.match(':')) {
+ times = text.split(':');
+ } else {
+ // single number text i.e. 5pm
+ times[0] = text;
+ times[0] = this.removeAMPM(times[0]);
+ }
+
+ // change pm hours to 24hr number
+ if(this.hasPM(text)) {
+ if(times[0] < 12) {
+ times[0] = parseInt(times[0], 10) + 12;
+ }
+ }
+
+ // add leading zero's where needed
+ if(times[0] && times[0].length === 1) {
+ times[0] = '0' + times[0];
+ }
+
+ // rejoin text elements together
+ if(times[0]) {
+ text = times.join(':');
+ }
+ }
+ }
+
+ // remove am/pm strings
+ return this.removeAMPM(text);
+ },
+
+
+ /**
+ * overlays a time on a date to return the union of the two
+ *
+ * @param {String} date
+ * @param {String} time
+ * @param {String} format ( Modules.ISODate profile format )
+ * @return {Object} Modules.ISODate
+ */
+ dateTimeUnion: function(date, time, format) {
+ var isodate = new modules.ISODate(date, format),
+ isotime = new modules.ISODate();
+
+ isotime.parseTime(this.parseAmPmTime(time), format);
+ if(isodate.hasFullDate() && isotime.hasTime()) {
+ isodate.tH = isotime.tH;
+ isodate.tM = isotime.tM;
+ isodate.tS = isotime.tS;
+ isodate.tD = isotime.tD;
+ return isodate;
+ } else {
+ if(isodate.hasFullDate()){
+ return isodate;
+ }
+ return new modules.ISODate();
+ }
+ },
+
+
+ /**
+ * concatenate an array of date and time text fragments to create an ISODate object
+ * used for microformat value and value-title rules
+ *
+ * @param {Array} arr ( Array of Strings )
+ * @param {String} format ( Modules.ISODate profile format )
+ * @return {Object} Modules.ISODate
+ */
+ concatFragments: function (arr, format) {
+ var out = new modules.ISODate(),
+ i = 0,
+ value = '';
+
+ // if the fragment already contains a full date just return it once
+ if(arr[0].toUpperCase().match('T')) {
+ return new modules.ISODate(arr[0], format);
+ }else{
+ for(i = 0; i < arr.length; i++) {
+ value = arr[i];
+
+ // date pattern
+ if( value.charAt(4) === '-' && out.hasFullDate() === false ){
+ out.parseDate(value);
+ }
+
+ // time pattern
+ if( (value.indexOf(':') > -1 || modules.utils.isNumber( this.parseAmPmTime(value) )) && out.hasTime() === false ) {
+ // split time and timezone
+ var items = this.splitTimeAndZone(value);
+ value = items[0];
+
+ // parse any use of am/pm
+ value = this.parseAmPmTime(value);
+ out.parseTime(value);
+
+ // parse any timezone
+ if(items.length > 1){
+ out.parseTimeZone(items[1], format);
+ }
+ }
+
+ // timezone pattern
+ if(value.charAt(0) === '-' || value.charAt(0) === '+' || value.toUpperCase() === 'Z') {
+ if( out.hasTimeZone() === false ){
+ out.parseTimeZone(value);
+ }
+ }
+
+ }
+ return out;
+
+ }
+ },
+
+
+ /**
+ * parses text by splitting it into an array of time and timezone strings
+ *
+ * @param {String} text
+ * @return {Array} Modules.ISODate
+ */
+ splitTimeAndZone: function ( text ){
+ var out = [text],
+ chars = ['-','+','z','Z'],
+ i = chars.length;
+
+ while (i--) {
+ if(text.indexOf(chars[i]) > -1){
+ out[0] = text.slice( 0, text.indexOf(chars[i]) );
+ out.push( text.slice( text.indexOf(chars[i]) ) );
+ break;
+ }
+ }
+ return out;
+ }
+
+ };
+
+
+ return modules;
+
+} (Modules || {}));
+
+
+
+