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nested comments

 
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bolero
Smarty Rookie


Joined: 22 Nov 2010
Posts: 30

PostPosted: Fri Dec 10, 2010 12:41 pm    Post subject: nested comments Reply with quote

Every so often I come over some longer piece of template code that I would like to comment out temporarily or comment out "for real" but preserve for a longer time. The current {* *} doesn't allow putting it as a wrap around that code. I assume there is a problem with finding the end of the comment. What about using the same open and close syntax as with other Smarty elements?

Code:
{* ... /*} comment that can contain other Smarty elements.
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mohrt
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Joined: 16 Apr 2003
Posts: 7368
Location: Lincoln Nebraska, USA

PostPosted: Fri Dec 10, 2010 2:51 pm    Post subject: Reply with quote

you can't nest the comment tags, too many problems. Its the same in PHP with /* */ blocks, you can't nest them since the ending tags are ambiguous. You could do a work around though, make up your own comment tag syntax:

Code:
{***
   Put any {* smarty *} stuff {in} here.
***}


Then use a prefilter to snip out these comment blocks before compile time. Something like:

Code:
return preg_replace('!\{\*\*\*.*\*\*\*\}!Ums','',$content);
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bolero
Smarty Rookie


Joined: 22 Nov 2010
Posts: 30

PostPosted: Thu Dec 16, 2010 6:41 pm    Post subject: Reply with quote

Ok, maybe "nested" comments was the wrong term. I mean a mix of comments and code. What I want is exactly the same that I can do with /* */ in php. Just put them around any code block and it's commented out. This doesn't really work with Smarty. (I'm ok with comments not allowed within comments.)

e.g., that works:
Code:
{* some text here *}


that sometimes does, but sometimes does not:

Code:

{*
{lenghty smarty code block including text and html}

*}


I can't give you an example at the moment. I just ran into this problem regularly with Smarty 2 and found that it still happens with Smarty 3 the day I posted it. As I understand wrapping the smarty code with {* *} should always work, just not if another comment is contained, right?
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mohrt
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Joined: 16 Apr 2003
Posts: 7368
Location: Lincoln Nebraska, USA

PostPosted: Thu Dec 16, 2010 8:19 pm    Post subject: Reply with quote

That should work. A demonstration of the problem would be a big help.
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bolero
Smarty Rookie


Joined: 22 Nov 2010
Posts: 30

PostPosted: Mon Dec 20, 2010 5:33 pm    Post subject: Reply with quote

Ok, next time I run into it I'll add here. Of course, it's possible that I accidentally had a nested comment somewhere in that code. We'll see. Happy holdays!
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