// if the HTML is used to generate plain text, then don't do this search, but replace all URL of that kind to text
if (!$for_plaintext) {
- // Autolink feature (thanks to https://daringfireball.net/2010/07/improved_regex_for_matching_urls)
- $autolink_regex = '@(?xi)
-(?<![=\'\]"/]) # Not preceded by =, \', ], ", /
-\b
-( # Capture 1: entire matched URL
- https?:// # http or https protocol
- (?:
- [^/.][^/]+[.][^/]+/? # looks like domain name followed by a slash
- )
- (?: # One or more:
- [^\s()<>]+ # Run of non-space, non-()<>
- | # or
- \(([^\s()<>]+|(\([^\s()<>]+\)))*\) # balanced parens, up to 2 levels
- | # or
- [^\s`!()\[\]{};:\'".,<>?«»“”‘’] # not a space or one of these punct chars
- )*
-)@';
- $text = preg_replace($autolink_regex, '[url]$1[/url]', $text);
+ $text = preg_replace(Strings::autoLinkRegEx(), '[url]$1[/url]', $text);
if ($simple_html == 7) {
$text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism", 'self::convertUrlForOStatusCallback', $text);
$text = preg_replace_callback("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", 'self::convertUrlForOStatusCallback', $text);
return $return;
}
+
+ /**
+ * Returns the regular expression string to match URLs in a given text
+ *
+ * @return string
+ * @see https://daringfireball.net/2010/07/improved_regex_for_matching_urls
+ */
+ public static function autoLinkRegEx()
+ {
+ return '@(?xi)
+(?<![=\'\]"/]) # Not preceded by [, =, \', ], ", /
+\b
+( # Capture 1: entire matched URL
+ https?:// # http or https protocol
+ (?:
+ [^/.][^/]+[.][^/]+/? # looks like domain name followed by a slash
+ )
+ (?: # One or more:
+ [^\s()<>]+ # Run of non-space, non-()<>
+ | # or
+ \(([^\s()<>]+|(\([^\s()<>]+\)))*\) # balanced parens, up to 2 levels
+ | # or
+ [^\s`!()\[\]{};:\'".,<>?«»“”‘’] # not a space or one of these punct chars
+ )*
+)@';
+ }
}