[Rest2web-develop] gallery plugin improvements

[Yuri D'E. <wa...@th...>]

Hi everyone. I've made some modifications to the gallery plugin that I
would like to share.

I've made optional the "page_template" parameter: if not set, a
direct link to the image is made. I've switched the "cgi.replace" (and
the ugly ** escapes) to use "embedded_code" like everywhere else.

The thumbnails are now regenerated only when needed, not at every
invocation. The plugin is attached as "gallery2", since the templates
are not directly compatible with the old ones. The plugin works
otherwise the same.

I tried to make the plugin system work on "rest" files by using
substitution references (which look like this: |gallery|). I raised the
question in the docutils ML, but without much success:

  http://article.gmane.org/gmane.text.docutils.user/5619

The proposed solution to define the substitutions by concatenating
text work (of course), but you cannot define 'raw html' in the
substitution:

.. |sub| replace::
  .. raw:: html
    test

thus making them much less useful for that purpose.

Bests