Subject: [htdig3-dev] htword changes
Date: Tue Dec 21 1999 - 04:30:49 PST
I just commited a few changes within htword.
Htword is an indexing library that can be used in other frameworks
than htdig. The key structure that is used for indexing used to be
determined at compile time, a header file WordKey.h was generated by a
perl script from WordKey.h.tmpl. This implied recompiling the library
each time you wanted to use a different key structure. I have changed
this and made the keystructure dynamically set.
What difference does it make for htdig ?
* makes the compilation of htword standard (simpler makefiles)
* small increase in performance
* wordkey's occupy a little more memory
Is this a new feature?
Not for htdig, it jus means more portable compiling.
I rewrote the WordKey test in word.cc, it contains old tests plus new
tests for randomly determined key structures.
For the following days I'll be benchmarking the compression and
probably tuning a few things there.
Feel free to make comments/share ideas
Mon Dec 20 17:59:15 1999 Marcel Bosc <firstname.lastname@example.org>
* WordKey: Made the key structure dynamic: Changing the
key structure used to imply recompiling the htword library.
This should not change anything in htdig.
* WordKey: numerical key fields are stored in an array of unsigned
ints instead of compile-time defined pools.
* WordKey.h: WordKey now needs copy opreators. Setbits are stored
in sort order (used to be in encoding order)
* htword: word_key_info is now a pointer, had to change all references
* word.cc: Rewrote wordkey test for new dynamically
set key structure. The test randomly creates key structures
and tests them.
* test: adapted test files (simplifies things a lot)
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