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55 lines
1.6 KiB
55 lines
1.6 KiB
<?php
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// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
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//
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// All Rights Reserved. See copyright.txt for details and a complete list of authors.
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// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
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// $Id$
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// convert utf-8 to unicode
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function smarty_modifier_utf8unicode($utf8_text)
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{
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$output = [ ];
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for ($pos = 0, $pos_strlen_utf8_text = strlen($utf8_text); $pos < $pos_strlen_utf8_text; $pos++) {
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$chval = ord($utf8_text[$pos]);
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$bytes = 0;
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if (( $chval >= 0x00 ) && ( $chval <= 0x7F )) {
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$bytes = 1;
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$outputval = $chval; // Since 7-bit ASCII is unaffected, the output equals the input
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} else {
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for ($i = 5; $i > 0; $i--) {
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if (($chval >> $i) == ( (pow(2, (8 - $i))) - 2)) {
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$bytes = 7 - $i;
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$outputval = $chval & ((2 ^ $i) - 1);
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}
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}
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}
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if ($bytes !== 0) {
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if ($pos + $bytes - 1 < strlen($utf8_text)) {
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while ($bytes > 1) {
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$pos++;
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$bytes--;
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$outputval = $outputval * 0x40 + ( (ord($utf8_text[$pos])) & 0x3F );
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}
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if ($outputval != 0) {
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$output[] = $outputval;
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}
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}
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}
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}
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$htmloutput = "";
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foreach ($output as $unistr) {
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if ($bytes < 3) {
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$htmloutput .= "&#" . str_pad($unistr, 3, "0", STR_PAD_LEFT) . ';';
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} else {
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$htmloutput .= "&#" . $unistr . ';';
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}
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}
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return $htmloutput;
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}
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