}}
-if(! function_exists('get_tags')) {
/**
- * Pull out all #hashtags and @person tags from $s;
+ * @brief Pull out all #hashtags and @person tags from $string.
+ *
* We also get @person@domain.com - which would make
* the regex quite complicated as tags can also
* end a sentence. So we'll run through our results
* and strip the period from any tags which end with one.
* Returns array of tags found, or empty array.
*
- * @param string $s
- * @return array
+ * @param string $string Post content
+ * @return array List of tag and person names
*/
-function get_tags($s) {
+function get_tags($string) {
$ret = array();
// Convert hashtag links to hashtags
- $s = preg_replace("/#\[url\=([^\[\]]*)\](.*?)\[\/url\]/ism", "#$2", $s);
+ $string = preg_replace('/#\[url\=([^\[\]]*)\](.*?)\[\/url\]/ism', '#$2', $string);
// ignore anything in a code block
- $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
+ $string = preg_replace('/\[code\](.*?)\[\/code\]/sm', '', $string);
// Force line feeds at bbtags
- $s = str_replace(array("[", "]"), array("\n[", "]\n"), $s);
+ $string = str_replace(array('[', ']'), array("\n[", "]\n"), $string);
// ignore anything in a bbtag
- $s = preg_replace('/\[(.*?)\]/sm','',$s);
+ $string = preg_replace('/\[(.*?)\]/sm', '', $string);
// Match full names against @tags including the space between first and last
// We will look these up afterward to see if they are full names or not recognisable.
- if(preg_match_all('/(@[^ \x0D\x0A,:?]+ [^ \x0D\x0A@,:?]+)([ \x0D\x0A@,:?]|$)/',$s,$match)) {
- foreach($match[1] as $mtch) {
- if(strstr($mtch,"]")) {
+ if (preg_match_all('/(@[^ \x0D\x0A,:?]+ [^ \x0D\x0A@,:?]+)([ \x0D\x0A@,:?]|$)/', $string, $matches)) {
+ foreach ($matches[1] as $match) {
+ if (strstr($match, ']')) {
// we might be inside a bbcode color tag - leave it alone
continue;
}
- if(substr($mtch,-1,1) === '.')
- $ret[] = substr($mtch,0,-1);
- else
- $ret[] = $mtch;
+ if (substr($match, -1, 1) === '.') {
+ $ret[] = substr($match, 0, -1);
+ } else {
+ $ret[] = $match;
+ }
}
}
// Otherwise pull out single word tags. These can be @nickname, @first_last
// and #hash tags.
- if(preg_match_all('/([!#@][^ \x0D\x0A,;:?]+)([ \x0D\x0A,;:?]|$)/',$s,$match)) {
- foreach($match[1] as $mtch) {
- if(strstr($mtch,"]")) {
+ if (preg_match_all('/([!#@][^\^ \x0D\x0A,;:?]+)([ \x0D\x0A,;:?]|$)/', $string, $matches)) {
+ foreach($matches[1] as $match) {
+ if (strstr($match, ']')) {
// we might be inside a bbcode color tag - leave it alone
continue;
}
- if(substr($mtch,-1,1) === '.')
- $mtch = substr($mtch,0,-1);
+ if (substr($match, -1, 1) === '.') {
+ $match = substr($match,0,-1);
+ }
// ignore strictly numeric tags like #1
- if((strpos($mtch,'#') === 0) && ctype_digit(substr($mtch,1)))
+ if ((strpos($match, '#') === 0) && ctype_digit(substr($match, 1))) {
continue;
+ }
// try not to catch url fragments
- if(strpos($s,$mtch) && preg_match('/[a-zA-z0-9\/]/',substr($s,strpos($s,$mtch)-1,1)))
+ if (strpos($string, $match) && preg_match('/[a-zA-z0-9\/]/', substr($string, strpos($string, $match) - 1, 1))) {
continue;
- $ret[] = $mtch;
+ }
+ $ret[] = $match;
}
}
return $ret;
-}}
+}
//