[Zope] How to read raw data from HTMLFile?

[Martijn Pieters]

On Wed, Aug 09, 2000 at 07:49:31PM -0300, Kevin Howe wrote:
> I would like to pre-process a DTML file (accessed using HTMLFile) before
> displaying it in the web browser.
> 
> Example Code:
> 
>   dtml=HTMLFile('manage/mycode', globals())
> 
>   def cleanUp:
>      # eliminate blank lines and <!-- comments--> from DTML
>      .....
> 
>   def printDTML(self):
>      return self.cleanUp(dtml)
> 
> The problem is that the dtml variable doesn't return the DTML,  but the
> object reference. Is there a way to fetch the raw DTML content from the
> HTMLFile object?

Have you looked through the HTMLFile code? You'll see that it subclasses from
several other base classes. One of these is
DocumentTemplate.DT_String.FileMixin, which defines a read_raw method that'll
return the current raw sourcecode of the object.

Your code becomes:

   dtml=HTMLFile('manage/mycode', globals())
 
   def cleanUp(source):
      # eliminate blank lines and <!-- comments--> from DTML
      .....
 
   def printDTML(self):
      return self.cleanUp(dtml.read_raw())


-- 
Martijn Pieters
| Software Engineer            mailto:mj@digicool.com
| Digital Creations          http://www.digicool.com/
| Creators of Zope               http://www.zope.org/
| ZopeStudio: http://www.zope.org/Products/ZopeStudio
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