Sylvain Henry
Hi,
Search engines often reference old versions of the GHC user guide. For instance with Google and the request "ghc unboxed tuples" I get the manual for 7.0.3, 5.04.1 and 6.8.2 as first results. With DuckDuckGo I get 6.12.3 and then "latest" versions of the manual.
So I have made a custom search engine for the latest manual (using OpenSearch spec). You can install it from the following page: http://haskus.fr/ghc/index.html like any other search engine.
Sphinx supports automatic generation of OpenSearch spec: http://www.sphinx-doc.org/en/1.4.8/config.html#confval-html_use_opensearch Maybe we should use this to make the search engine easier to find and use.
I've opened a differential (D2921) which enables opensearch support for the users guide. Cheers, - Ben