regex for hyperlink

[miguelisboa]

i got the following from a book:
its a regex that works IF the word(s) dont have any special chars, like:
página, or
maçã
here it is:

$texto = ereg_replace('\[L]([-_./a-zA-Z0-9!&%#?+,\'=:~]+)\[EL]','<a class="texto" href="\\1">\\1</a>', $texto);
$texto = ereg_replace('\[L=([-_./a-zA-Z0-9!&%#?+,\'=:~]+)]'.
'([-_./a-zA-Z0-9 !&%#?+$,\'"=:;~]+)\[EL]',
'<a class="texto" href="\\1">\\2</a>', $texto);

see this example:
visit this [L=[URL unfurl="true"]http://www.tek-tips.com[/URL]] página[EL]
what is missing there ?
note: it works if i use "pagina" instead of "página"
Thanks in advance

 

[MrPlough69]

It looks like the problem is in that your character class:

[-_./a-zA-Z0-9!&%#?+,\'=:~]

a-z and A-Z don't cover the extended characters such as á

using \w in your character class should match these as well:

[-_./\w0-9!&%#?+,\'=:~]

 

[miguelisboa]

thanks, MrPlough69 for your answer
i tested your sugestion but it doesnt work
in meanwhile i was told i had to have multibyte support:

http://pt.php.net/mb_ereg_replace

and the regex shoud be as this:
$texto = mb_ereg_replace('\[L=([-_./a-zA-Z0-9!&%#?+,\'=:~]+)] *(\w+)\[EL]',
'<a class="texto" href="\\1">\\2</a>', $texto);

i did install mbstring extension and all this works; the only problem i've o far is that it does not support two or more words, like:

visit this [L=[URL unfurl="true"]http://www.tek-tips.com[/URL]] good página[EL]
anyway thanks again!