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PORead Parameters out of icalendar file with JS
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  1. PORead Parameters out of icalendar file with JS
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    copied!<p>I'd like to read several parameters out of an iCalendar file with JavaScript.</p> <p>The file input looks like:</p> <blockquote> <p>BEGIN:VEVENT DTSTART:20121127T190000Z DTEND:20121127T210000Z DTSTAMP:20121130T185808Z UID:q4sbrtajjol1hlpiijpho5jac0@google.com CREATED:20121102T191519Z DESCRIPTION:1. Bundesliga\, 14. Spieltag \n\nhttp://www.fussball-spielplan. info LAST-MODIFIED:20121127T211459Z LOCATION:Commerzbank-Arena\, Frankfurt SEQUENCE:10 STATUS:CONFIRMED SUMMARY:Eintracht Frankfurt - 1. FSV Mainz 05 (1:3) TRANSP:TRANSPARENT END:VEVENT</p> </blockquote> <p>The parameter tags are:</p> <pre><code>DTSTART: DTEND: DTSTAMP: UID: CREATED: DESCRIPTION: LAST-MODIFIED: LOCATION: STATUS: SUMMARY: TRANSP: </code></pre> <p>I want to read the values behind these parameters. The length of the values are mostly variable.</p> <p>Using a <code>RegExp</code> is quite hard as I currently don't know what to set as a delimiter. <code>"\n"</code> doesn't work as all text parts are separated by a space. But if I use the space delimiter <code>"\s"</code> it will separate after each word, which is not the wanted result especially for the parameter <code>DESCRIPTION:</code> with a longer text included.</p> <p>My source code looks currently like this:</p> <pre><code>file_reader.onload = function (evt) { document.getElementById("filedrag").textContent = evt.target.result; Output( "&lt;p&gt;File information: &lt;strong&gt;" + file.name + "&lt;/strong&gt; type: &lt;strong&gt;" + file.type + "&lt;/strong&gt; size: &lt;strong&gt;" + file.size + "&lt;/strong&gt; bytes&lt;/p&gt;"); var regexp = new RegExp("/DTSTART:(.*?)\s/", "g"); var file_content = evt.target.result; var match, matches = []; while ((match = regexp.exec(file_content)) != null) { matches.push(match.index); } alert(matches); } </code></pre> <p>Any ideas, how I can achieve my idea?</p>
 

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