
How to Upgrade curled Documents to Version 2.0
==============================================

no_link, the word occurrence tools, and the link tools are
additional to the main curl application, and do not require any
changes to documents created by earlier versions of curl.

However, the changes to the curl application mean that documents
created in earlier versions will need to be reprocessed to
take advantage of the new features.

The most visible changes to the curl application are the
introduction of a new additions page, a search page (and engine),
and the use of icons to represent the absence of links.

The easiest way of adding these features to a document
is to decurl it, delete 'prev_contents', and start afresh.

The following tasks need to be carried out in order to upgrade:

* Update curl and decurl (modtime has not been altered).

* Add the new GIF images to the 'arrows' directory: new.gif,
  search.gif, and any 'no_' GIF files.

* Modify the style files to include references to %new and %search.

* Compile sk.c (the search engine) and install it in the local
  machine's CGI scripts directory.

* Places copies of new.html and search.html in the top-level
  directory of the document. Modify search.html to refer to
  the directory and sk. See section 5.3.6 of the user guide
  for details, or 'srch-setup' in the 'docs' directory.

The document can now be reprocessed by curl.

