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"MDL-14907, fixed UTF8 fold in iCal export, thanks Tomasz Muras, merged from 1.9"

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This commit is contained in:
dongsheng 2009-10-12 05:10:26 +00:00
parent 103e0dd285
commit fa8431d74f
1 changed files with 21 additions and 6 deletions

27
lib/bennu/iCalendar_rfc2445.php

@ -54,19 +54,34 @@ define('RFC2445_TYPE_UTC_OFFSET', 13);
function rfc2445_fold($string) {
if(strlen($string) <= RFC2445_FOLDED_LINE_LENGTH) {
if(mb_strlen($string, 'utf-8') <= RFC2445_FOLDED_LINE_LENGTH) {
return $string;
}
$retval = '';
$i=0;
$len_count=0;
while(strlen($string) > RFC2445_FOLDED_LINE_LENGTH) {
$retval .= substr($string, 0, RFC2445_FOLDED_LINE_LENGTH - 1) . RFC2445_CRLF . ' ';
$string = substr($string, RFC2445_FOLDED_LINE_LENGTH - 1);
//multi-byte string, get the correct length
$section_len = mb_strlen($string, 'utf-8');
while($len_count<$section_len) {
//get the current portion of the line
$section = mb_substr($string, ($i * RFC2445_FOLDED_LINE_LENGTH), (RFC2445_FOLDED_LINE_LENGTH), 'utf-8');
//increment the length we've processed by the length of the new portion
$len_count += mb_strlen($section, 'utf-8');
/* Add the portion to the return value, terminating with CRLF.HTAB
As per RFC 2445, CRLF.HTAB will be replaced by the processor of the
data */
$retval .= $section.RFC2445_CRLF.RFC2445_WSP;
$i++;
}
$retval .= $string;
return $retval;
}