Want to convert email to hyperlink

[s_shrum]

I have a script that that currently converts un-hyperlinked URLs into hyperlinks.

I was wondering if anyone has the REGEX for hyperlinking a un-hyperlinked email address:

[pre][e-mail][/pre]
...to...

[pre]<a href="mailto:[e-mail]">[e-mail]</a>[/pre]
TIA

[tomwerner]

function hyperEmail ($email) {

$link = "<a href=\"mailto:{$email}\">{$email}</a>";

return $link;

}

echo hyperEmail("[e-mail]"); 

Or is that not what you meant?

[s_shrum]

Close...but let's say you have a large string of text in which the email address resides:

"this is a test to see if [e-mail] will become a hyperlink after it is proceesed"

I need a regex that will convert the '[e-mail]' into '<a href="mailto:[e-mail]">[e-mail]</a>' so that the final output is:

"this is a test to see if <a href="mailto:[e-mail]">[e-mail]</a> will become a hyperlink after it is proceesed"

I just noticed that phpbuilder.com is doing what I want...it finds a email address and wraps the email tag around it....that is what I'm looking for.

[Weedpacket]

How versatile do you want it to be?

$uchar =         '([a-zA-Z0-9!*\'(),$_.+-]|%[\da-fA-F][\da-fA-F])';
$xchar = '([;\/?:@&=a-zA-Z0-9!*\'(),$_.+-]|%[\da-fA-F][\da-fA-F])';

// URL Schemeparts for ip-based protocols

$domainlabel = '[a-zA-Z\d]([a-zA-Z\d.]*[a-zA-Z\d])?';
$toplabel    = '[a-zA-Z]([a-zA-Z\d.]*[a-zA-Z\d])?';

$host        = '(('.$domainlabel.'\.)*'.$toplabel.'|\d+\.\d+\.\d+\.\d+)';
$hostport    = $host.'(:\d+)?';
$urlpath     = '('.$xchar.')*';
$login       = '(('.$uchar.'|[;?&=])*(:('.$uchar.'|[;?&=])*)?@)?'.$hostport;


// The generic form of a URL is:
$genericurl = '([a-z\d+.-])+:(('.$xchar.')*|\/\/'.$login.'(\/'.$urlpath.')?)';
// The scheme is in lower case; interpreters should be case-insensitive.

// Specific predefined schemes are defined here; new schemes may be
// registered with IANA.

// The predefined schemes:

// FTP (see also RFC959)
$fsegment = '('.$uchar.'|[?:@&=])*';
$fpath = $fsegment.'(\/'.$fsegment.')*';
$ftpurl = 'ftp:\/\/'.$login.'(\/'.$fpath.'(;type=[AIDaid])?)?';

// FILE
$fileurl = 'file:\/\/('.$host.'|localhost)\/'.$fpath.'';

// HTTP (see also RFC2616)
$search   = '('.$uchar.'|[;:@&=])*';
$hsegment = '('.$uchar.'|[;:@&=])*';
$httpurl  = 'http:\/\/'.$hostport.'(\/'.$hsegment.'(\/'.$hsegment.')*(\?'.$search.')?)?';


// GOPHER (see also RFC1436)
$gopherurl = 'gopher:\/\/'.$hostport.'(\/(($xchar)*(($xchar)*(%09'.$search.'(%09($xchar)*)?)?)?)?)?';


// MAILTO (see also RFC822)
$mailtourl = 'mailto:('.$xchar.')+'; // Further defined in RFC822

// NEWS (see also RFC1036)
$group = '[a-zA-Z]([a-zA-Z\d.+_-])*';
$newsurl = 'news:(\*|'.$group.'|('.$uchar.'|[;\/?:&=])+@'.$host.')';

// NNTP (see also RFC977)
$nntpurl = 'nntp:\/\/'.$hostport.'\/'.$group.'(\/\d+)?';

// TELNET
$telneturl = 'telnet:\/\/'.$login.'\/?';

// WAIS (see also RFC1625)
$waisurl = '(wais:\/\/'.$hostport.'\/('.$uchar.')*)(\?'.$search.'|\/('.$uchar.')*\/('.$uchar.')*)?';


// PROSPERO

$psegment = '('.$uchar.'|[?:@&=])*';
$prosperourl = 'prospero:\/\/'.$hostport.'\/'.$psegment.'(\/'.$psegment.')*(;('.$uchar.'|[?:@&])*=('.$uchar.'|[?:@&])*)*';

// New schemes follow the general syntax
$otherurl = $genericurl;

$url = $httpurl.'|'.$ftpurl.'|'.$newsurl.'|'.$nntpurl.'|'.$telneturl.'|'.$gopherurl.'|'.$waisurl.'|'.$mailtourl.'|'.$fileurl.'|'.$prosperourl.'|'.$otherurl;

Eg., for http URLs only...

'/http:\/\/((a-z\d?.)a-z?|\d+.\d+.\d+.\d+)(:\d+)?(\/([a-z0-9!\'(),$.+;:@&=-]|%[\da-f][\da-f])(\/([a-z0-9!\'(),$.+;:@&=-]|%[\da-f][\da-f]))(\?([a-z0-9!\'(),$_.+;:@&=-]|%[\da-f][\da-f]))?)?/i'

(I think. Too tired to have any confidence.)

[s_shrum]

ack!....

Um, it would be great if it handled all the various formats but for now I just need a regex for 'blah@blah'

Currently I have (taken from regexlib.com) the following code that handles http|ftp(s):

$text = preg_replace( "/(?<!<a href=\")((http|ftp)+(s)?:\/\/[^<>\s]+)/i", "<a href=\\\"\0\\\" target=\\\"_new\\\">\0</a>", $text );

The info is going into a file (hence all the '\'s).

What I need now is a regex that locates '@' inside a word and outputs like this:

<a href='mailto:word'>word</a>

TIA