I am using htdig to index DjVu files. To do this, I create text dumps
of each DjVu file (eg. filename.txt for each filename.djvu file), and
then index these text files. Then I add a search_rewrite_rule to my
htdig.conf file so that results point to the djvu files instead of the
text files. It works quite nicely. I know that I can probably dump the
text on the fly instead of generating separate text files, but this works
for the time being.
Now I want to try to get htdig to pass variables to the Djvu plugin so
that search hits will get highlighted. For those of you who don't use
DjVu, let me explain a bit about how highlighting works. Since DjVu files
are really images, with an optional hidden text layer, highlighting is
done via a series of coordinates. For instance, if I add
"?DJVUOPTS&HIGHLIGHT=270,3889,500,225" to the end of the URL, it will
highlight the word that is at that location. To see this in action, look
here:
http://crony.rutgers.edu/letter//RFT-7.10.18-p1.djvu?DJVUOPTS&HIGHLIGHT=270,3889,500,225
I have another text file that lists coordinates for each word as follows:
(word 270 3889 500 225 "Dear")
So my questions is how to grab those coordinates, and tack them onto the
returned URL in an automated fashion. In other words, if a user searches
for "dear", I need a way to get the coordinates from the file, and then
add them to the URL using the correct syntax. I suppose this is more of a
scripting question then an htdig problem, but hopefully list members will
have some suggestions.
Thanks in advance,
Eric Luhrs
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