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Be more selective in what we make clickable. 

git-svn-id: https://develop.svn.wordpress.org/trunk@6449 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Ryan Boren 2007-12-21 03:14:22 +00:00
parent 08920c2855
commit b8965ef065
1 changed files with 27 additions and 9 deletions
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36
wp-includes/formatting.php
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@ -626,18 +626,36 @@ function antispambot($emailaddy, $mailto=0) {
return $emailNOSPAMaddy;
}
function _make_url_clickable_cb($matches) {
$url = $matches[2];
$url = clean_url($url);
if ( empty($url) )
return $matches[0];
error_log($matches[0], 0);
return $matches[1] . "<a href=\"$url\" rel=\"nofollow\">$url</a>";
}
function _make_web_ftp_clickable_cb($matches) {
$dest = $matches[2];
$dest = 'http://' . $dest;
$dest = clean_url($dest);
if ( empty($dest) )
return $matches[0];
return $matches[1] . "<a href=\"$dest\" rel=\"nofollow\">$dest</a>";
}
function _make_email_clickable_cb($matches) {
$email = $matches[2] . '@' . $matches[3];
return $matches[1] . "<a href=\"mailto:$email\">$email</a>";
}
function make_clickable($ret) {
$ret = ' ' . $ret;
// in testing, using arrays here was found to be faster
$ret = preg_replace(
array(
'#([\s>])([\w]+?://[\w\#$%&~/.\-;:=,?@\[\]+]*)#is',
'#([\s>])((www|ftp)\.[\w\#$%&~/.\-;:=,?@\[\]+]*)#is',
'#([\s>])([a-z0-9\-_.]+)@([^,< \n\r]+)#i'),
array(
'$1<a href="$2" rel="nofollow">$2</a>',
'$1<a href="http://$2" rel="nofollow">$2</a>',
'$1<a href="mailto:$2@$3">$2@$3</a>'),$ret);
$ret = preg_replace_callback('#([\s>])([\w]+?://[\w\#$%&~/.\-;:=,?@\[\]+]*)#is', '_make_url_clickable_cb', $ret);
$ret = preg_replace_callback('#([\s>])((www|ftp)\.[\w\#$%&~/.\-;:=,?@\[\]+]*)#is', '_make_web_ftp_clickable_cb', $ret);
$ret = preg_replace_callback('#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i', '_make_email_clickable_cb', $ret);
// this one is not in an array because we need it to run last, for cleanup of accidental links within links
$ret = preg_replace("#(<a( [^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i", "$1$3</a>", $ret);
$ret = trim($ret);