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Add emoji URL support, and Twemoji fallback for displaying slugs in wp-admin, when the browser doesn't natively support emoji.

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Props pento, SergeyBiryukov and boonebgorges.

Fixes #31328



git-svn-id: https://develop.svn.wordpress.org/trunk@31734 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Gary Pendergast
2015-03-11 22:54:49 +00:00
parent ae391ec226
commit 1357e7fc2e
12 changed files with 81 additions and 48 deletions
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20
src/wp-includes/formatting.php
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@@ -785,21 +785,27 @@ function utf8_uri_encode( $utf8_string, $length = 0 ) {
$unicode .= chr($value);
$unicode_length++;
} else {
if ( count( $values ) == 0 ) $num_octets = ( $value < 224 ) ? 2 : 3;
if ( count( $values ) == 0 ) {
if ( $value < 224 ) {
$num_octets = 2;
} elseif ( $value < 240 ) {
$num_octets = 3;
} else {
$num_octets = 4;
}
}
$values[] = $value;
if ( $length && ( $unicode_length + ($num_octets * 3) ) > $length )
break;
if ( count( $values ) == $num_octets ) {
if ($num_octets == 3) {
$unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]) . '%' . dechex($values[2]);
$unicode_length += 9;
} else {
$unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]);
$unicode_length += 6;
for ( $j = 0; $j < $num_octets; $j++ ) {
$unicode .= '%' . dechex( $values[ $j ] );
}
$unicode_length += $num_octets * 3;
$values = array();
$num_octets = 1;
}