/**
* parses a STRING represeting an iCalendar (vCalendar 2)
* @param STRING $str - iCalendar formatted String
* @return
*/
function parse($str)
{
$this->data = array();
$lines = explode("\n", $str);
$cur = null;
for ($i = 0; $i < count($lines); $i++) {
$line = trim($lines[$i]);
while (!empty($lines[$i + 1]) && substr($lines[$i + 1], 0, 1) == " ") {
$line .= trim(substr($lines[$i + 1], 1));
$i++;
}
$kv = explode(':', $line, 2);
if (count($kv) == 1) {
continue;
}
$key = trim($kv[0]);
$value = trim($kv[1]);
switch ($key) {
case 'END':
switch ($value) {
case 'VCALENDAR':
if ($cur) {
$this->data['calendar'][] = $cur;
$cur = null;
}
break;
default:
if ($cur) {
$cur->process($key, $value);
} else {
throw new Exception('Invalid END Tag - ' . $line);
}
}
break;
case 'BEGIN':
switch ($value) {
case 'VCALENDAR':
$cur = new vCalendar();
break;
default:
if ($cur) {
$cur->process($key, $value);
} else {
throw new Exception('Invalid BEGIN Tag - ' . $line);
}
}
break;
default:
if ($cur) {
$cur->process($key, $value);
} else {
throw new Exception('Invalid Tag - ' . $line);
}
}
}
}
