* Add preview parameter to preprocesser calls, use this rather than the

  previous ugly hack used to avoid writing rss feeds in previews.
* Fix the img plugin to avoid overwriting images in previews. Instead it
  does all the work to make sure the resizing works, and dummys up a resized
  image using width and height attributes.
* Also fixes img preview display, the links were wrong in preview before.

1 files changed, 5 insertions, 3 deletions

diff --git a/doc/plugins/write.mdwn b/doc/plugins/write.mdwn
index 889057e69..5547ae699 100644
--- a/doc/plugins/write.mdwn
+++ b/doc/plugins/write.mdwn
@@ -96,9 +96,11 @@ Each time the directive is processed, the referenced function (`preprocess`
 in the example above) is called, and is passed named parameters. A "page"
 parameter gives the name of the page that embedded the preprocessor
 directive, while a "destpage" parameter gives the name of the page the
-content is going to (different for inlined pages). All parameters included
-in the directive are included as named parameters as well. Whatever the
-function returns goes onto the page in place of the directive.
+content is going to (different for inlined pages), and a "preview"
+parameter is set to a true value if the page is being previewed. All
+parameters included in the directive are included as named parameters as
+well. Whatever the function returns goes onto the page in place of the
+directive.
 
 Note that if the [[htmlscrubber]] is enabled, html in
 [[PreProcessorDirective]] output is sanitised, which may limit what your