ical

A tolerant, minimal icalendar parser

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ical.js #
(Formerly node-ical)
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A tolerant, minimal icalendar parser for javascript/node (http://tools.ietf.org/html/rfc5545)

Install - Node.js ##

ical.js is availble on npm:
npm install ical

API ##

ical.parseICS(str)
Parses a string with an ICS File
var data = ical.parseFile(filename)

Example 1 - Print list of upcoming node conferences (see example.js)

'use strict';

const ical = require('ical');
const months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];

const data = ical.parseICS('content from ical file');

for (let k in data) {
	if (data.hasOwnProperty(k)) {
		var ev = data[k];
		if (data[k].type == 'VEVENT') {
			console.log(`${ev.summary} is in ${ev.location} on the ${ev.start.getDate()} of ${months[ev.start.getMonth()]} at ${ev.start.toLocaleTimeString('en-GB')}`);

		}
	}
}

Recurrences and Exceptions ##

Calendar events with recurrence rules can be significantly more complicated to handle correctly. There are three parts to handling them:
1. rrule - the recurrence rule specifying the pattern of recurring dates and times for the event. 2. recurrences - an optional array of event data that can override specific occurrences of the event. 3. exdate - an optional array of dates that should be excluded from the recurrence pattern.
See examplerrule.js for an example of handling recurring calendar events.