Re: [binarycloud-dev] Regex for bc:tags - problem with nesting

[<bin...@li...>]

> Hi,
> 
> i'm currently on the BccHrefCompiler and the following problem occured. The
> Regex to grab the tags does not handle nested tags properly.
> 
> preg_match_all("!<(bc:.*?)>.*?</\\1.*?>!si", $source, $match);
> 
> i.e.:
> ...
> <bc:href>
> <id>123</id>
> <content>
>   <bc:img>
>     <id>321</id>
>   </bc:img>
> </content>
> </bc:href>
> ...
> 
> The regex now extracts the whole bc:href stuff including the bc:img tag.
> Then the href compiler is called and its output replaces the whole thing.
> The desired behavior is, that it first replaces the inner tag(s) calling the
> ImgCompiler then calling the Href Compiler.

I believe the href tag is the only tag we have right now which can accept
other bc tags as params... so I think the internal 'sub-parsing' is 100%
applicable, and valid + clean.

_alex





> 
> A possible solution is to call the ImgCompiler from within the Href
> Compiler, what I dislike. Another might be using some kind of recrusion or
> the php native xml_parser functions using some kind of event based parsing.
> 
> Any ideas?
> 
> andi
> 
> 
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