[ic] ITL in item comments.

[Davor Ocelic]

> Is the restrict tag used to allow ceartain tags to be input by ceartain 
> users, or does it restrict which tags can be output in a block of code 
> on an page irregardless of who entered the data being output?  How does 
> it work?


* Add ability to restrict tag execution in a region. If a restricted tag is
  encountered, it is simply output. Based on an idea from Jon Jensen.

  [restrict policy=deny*|accept enable="tag1 tag2" disable="tag1 tag2"]
      restricted area
  [/restrict]

  options:
  policy   "allow" or "deny". Default is deny.
  enable   space or comma-separated list of tag names, including
           UserTag names.
  disable  space or comma-separated list of tag names, including
           UserTag names.

  For instance, this:

  [restrict enable=page]
      [area something]
      [page aboutus]A link[/page]
  [/restrict]

  will output something like:

      [area something]
      <a href="http://sam.heins.net/cgi-bin/mfound/aboutus.html">A link</a>

  Defaults are important:

  interpolate=0
  reparse=0

  It would defeat the purpose to set interpolate or reparse, but it can be
  done.