hello,
i've written a php-bb-parser that uses the 'preg_replace_callback' function.
bb-code looks like this:

[tag=opt. attrib]value[/tag]
for example:

bold , or label

 
my regex looks like this:

#\[(.+)=?(.*?)?\](.*?)\[\/\1\]#

the callback function will then process the backreferences and create html. the function is called until the string I have before 'preg_replace_callback' is similar to the one after I called the function, so that it will process multiple/nested tags correctly.

it does work fine for the two examples I gave above. It also works for nested tags like bold+italic
now I'm trying to implement an (un)ordered list; the syntax shall look as following:

[ul]
item0[/li]
item1[/li]
...[/li]
[/ul]

the problem is that it will parse the li-tags correctly but leave out the ul-tag.
I've already tried the posix mods 's', 'x', 'm'

 

I'm looking forward to your replies, thank you in advance.

 

edith says: this board uses BB-Code too, what a mess. 

 

 

 

abc-regex:

...

edith says: this board uses BB-Code too, what a mess. 

Yes, perhaps you could post the code/regex at pastbin or something similar?

http://pastebin.com/

You might want to show the relevant PHP source code as well as the example text.

---

looking for a new regex book?
Regular Expressions Cookbook

the php: http://pastebin.com/m1fa13ee7

and an example-haystack:

[ol]

[li]list item[/li]

[li]another list item[/li]

[/ol]

 

This seemed to work for me:

http://pastebin.com/f6ed766c1

This version handles unknown "[tag]...[/tag]" blocks by prepending them with "UNKNOWN:".

You might consider a pre-made solution for your project:

http://pear.php.net/package/HTML_BBCodeParser

---

looking for a new regex book?
Regular Expressions Cookbook