PossitionIndex (was: Re: [Zope-dev] ZCatalog phrase indexingr evisited)

[Dieter Maurer]

sean.upton@uniontrib.com writes:
 > A lot of folks who do "power searches," say, librarians or other trained
 > researchers, familiar with the bells and whistles of more powerful search
 > engines, will want a simple operator for proximity, with the ability to
 > specify proximity depth:
 > 
 > For example:
 > 
 > Lexis-Nexis:	Sean w/2 Upton 	(where w/2 is within 2 words)
 > 			Also, lexis doesn't count stop-words in proximity
 > indexes.
 > Folio/Nextpage:	"Sean Upton"@2
 > 
 > IMHO, the syntax is clean and very brief in the Lexis-Nexis case and should
 > suppliment a more generic 
 > 	Sean ... Upton
 > style search.
I do not think, it is a good idea to have an infix operator
for proximity searches. This combines just 2 words but
proximity searches may involve more than two words:
a set of words, near together (e.g. in one paragraph, sentence,
within x words).


Dieter