[TYPO3-english] How to exclude some pages in PIDinRootline?

[Ugur Kocak]

Hi again,

I need to run some Typoscript code except certain pages. I mean I need to exclude some pages. Example code;

> #Default Description:
> page.meta{
>   description.field = description
> }
> #Description if Default Description is empty:
> page.meta.description.ifEmpty.stdWrap.cObject = CONTENT
> page.meta.description.ifEmpty.stdWrap.cObject {
>  table= tt_content
>  select {              
>    selectFields = bodytext
>  }
>  renderObj =COA
>  renderObj {
>    10=TEXT
>    10 {
>      field = bodytext     
>      stripHtml=1
>      crop = 1200 | ... | 1        
>    }
>  }
> }


I know that I can run certain code on a specific page via 
[PIDinRootline = x,y]
#put the TS here
[end]
But, I couldn't find any document explaining how to exclude certain pages (like pages for tt_news). 
Although globalVar permits usage of != operator, PIDinRootline doesn't I think. I tried that one but failed:
[PIDinRootline != x,y]

I will be happy if one gives me advice. Is there a way to exclude certain pages?

I am sorry if I am asking dummy questions, but as you may expect :)
Kind Regards,
Ugur