[htdig] meta keywords

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these are [hopefully] some of my last questions before deployment 
[but not forever;]... keep your fingers crossed!
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i am using 3.2.0b4 and am using the default htdig.conf with the 
exception of adding all (50) my start URLs.

searching produces the word searched for in its first instance, but 
does this include meta tag keywords in the html document?

what are the alternatives when searching, document versus meta tag?

a) how do you restrict the search to meta tagged keywords?

b) can searches produce results from both the meta tag keywords and 
the document?

c) can searches be restricted to the document only?

i read this in the FAQ:
"4.14. How do I restrict a search to only meta keywords entries in documents?

First of all, you do not do this by using the "keywords" field in the 
search form. This seems to be a frequent cause of confusion.	The 
"keywords" input parameter to htsearch has absolutely nothing to do 
with searching meta keywords fields. It actually predates the 
addition of meta keyword support in 3.1.x. A better choice of name 
for the parameter would have been "requiredwords", because that's 
what it really means - a list of words that are all required to be 
found somewhere in the document, in addition to the words the user 
specifies in the search form.

To restrict a search to meta keywords only, you must set all factors 
other than keywords_factor to 0, and for 3.1.x, you must then reindex 
your documents. In 3.2, you'll be able to change factors at search 
time without needing to reindex, as well as offering the ability to 
restrict the search in the query itself."

but i don't quite understand it.
where is the "keywords_factor", (did i miss it?)? If it is NOT 
restricted to "keywords_factor" does it index both meta and document?
when it says "in 3.2 you will be able to..." is that present in the 
snapshot of b4 now? if so, how does it work?

thank you VERY much.

-Ted
:(