Edit: Example
When a user enters post@example.no, the visible result becomes:
ost@example.no" class="small">post@example.no
But if a user enters mail@example.no, the visible result becomes just that: mail@example.no, and it becomes a link. When the user clicks the link, it prompts their local e-mail program on their computer and the recipient field is auto-filled with mail@example.no
The issue I'm having
I'm working on a site where users can comment on each other's pages, and I'm using str_replace and regex to replace urls into clickable urls, hashtags into "clickable hashtags", smiley codes (:P, :S, :D) into images etc.
However, when I try to turn an e-mail into a mailto with preg_replace, my "tongue"-smiley (:P) breaks it:
// MAILTO
$text = preg_replace('/(\S+@\S+\.\S+)/', '<a href="mailto:$1" class="small">$1</a>', $text);
// SMILEY
$text = str_replace(':P', '<img src="images/smileys/tongue.png" class="smiley" alt=":P" />', $text);
If a user enters an e-mail that starts with the letter "P", the mailto breaks and I'm basically screwed.
String input:
<a href='mailto:post@email.com'>post@email.com</a>
Becomes:
<a href='mailto[SMILEY]ost@email.com'>post@email.com</a>
One obvious solution is of course to change the smiley code (:P) into something else, or simply not create clickable e-mails. But ":P" is so widely known and used by users, so it's a matter of user experience. Also I have other smileys like the ":S" etc, so I'm hoping to find a simple, practical solution to this.
Any help will be much appreciated!
Regex: /(?<!mailto):(?:P|p)/ This expression says match :p or :P when there is no mailto word before it.
Instead of this:
$text = str_replace(':P', '<img src="images/smileys/tongue.png" class="smiley" alt=":P" />', $text);
Use this:
$text= preg_replace('/(?<!mailto):(?:P|p)/', '<img src="images/smileys/tongue.png" class="smiley" alt=":P" />', $text);