Hi Bill,

First off, thanks for all the help - it is most appreciated.

Secondly - I have got a working version of aspell (Text::Aspell) but I 
can't seem to find ParseQuery.pm. Do I need to upgrade swish? I am 
running version 2.2.1.

Thanks again,


David

On Fri, 22 Aug 2003 moseley@hank.org wrote:

> On Fri, Aug 22, 2003 at 07:39:26AM -0700, David Hoare wrote:
> 
> > One of the things I would like to do however is if a search did not return 
> > a hit then check the search words against the indexed words and do some 
> > approximate matching (agrep type of thing) and return a link to a new 
> > "corrected" search. The equivalent of google's "did you mean _BLAH_" when 
> > you misspell something. 
> > 
> > I use a Linux box and program in tcl or perl for preference.
> 
> There's a module included in the swish-e distribution called 
> ParseQuery.pm.  It's suppose to take the output from the "Parsed Words:" 
> header and, well, parse it.
> 
> Then on CPAN grab the Text::Asepll Perl module.  You can use that to 
> lookup words (parsed by ParseQuery.pm) to lookup words.
> 
> You will likely want to create a dictionary of only the words in your 
> index.  You can use one of the -T options to extract out all the words 
> from the index for use in your dictionary.  The Text::Aspell 
> docs describe how to create an Aspell dictionary from this list of 
> words.  You might decide to create a dictionary for each metaname.
> 
> So, when you get "no results" back from swish you can look up each word 
> in the query and check if it's spelled correctly and if there are any 
> suggestions from Aspell.
> 
> It's a bit complicated due to the fact that a misspelled word can return 
> many, many suggestions -- and that there can be more than one misspelled 
> word in a query.  Also, with boolean searches you can get no results 
> when all the terms are indeed ok search words.
> 
> <he says without the time to do it>
> It would not be that hard to hack swish-e to link directly with Aspell 
> and do the word lookup at search time and offer a list of suggestions 
> for each word not found in the index.
> </>
> 
>