File: TODO [ferret-0.11.8.5 Documentation]

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- Ferret
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- WEBrick
- WEBrick::FerretBrowserHandler
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TODO

####

- C

  - IMPORTANT: + FIX file descriptor overflow. See Tickets #341 and #343

  - add .. operator to query parser. For example, [100 200] could be written as 100..200 or 100...201 like in Ruby Ranges

  - remove exception handling from C code. All errors to be handled by return values.

  - Move to sqlite's locking model. Ferret should work fine in a multi-process environment.

  - Add optional logging. To be enabled at compilation time, perhaps?

  - Add support for changing zlib and bzlib compression parameters

  - Improve unit test coverage to 100%

  - Add benchmark suite

  - Add Rakefile for development purposes + task to publish gcov and benchmark results to ferret wiki

  - Index rebuilding of old versioned indexes.

  - Add a globally accessable, threadsafe symbol table. This will be very useful for storing field names so that no objects need to strdup the field-names but can just store the symbol representative instead. + this has been done but it can be improved using actual Symbol structs

        instead of plain char*

  - Make threading optional at compile time

  - to_json should limit output to prevent memory overflow on large indexes. Perhaps we could use some type of buffered read for this.

  - Make BitVector run as fast as bitset from C++ STL. See;

        c/benchmark/bm_bitvector.c

  - Add a symbol table for field names. This will mean that we won't need to worry about mallocing and freeing field names which happens all over the place.

  - Divide the headers into public and private (the private headers to be stored in the src directory).

  - Group-by search. ie you should be able to pass a field to group search results by

  - Auto-loading of documents during search. ie actual documents get returned instead of document numbers.

- Ruby bindings

  - argument checking for every method. We need a new api for argument checking so that the arguments get checked at the start of each method that could cause a segfault.

  - improve memory management. It was way to complex at the moment. I also need to document how it works so that other developers understand what is going on.

  - Replace Data_Wrap_Struct with ferret alternative which handles rewrapping of structs automatically and also knows when to release a struct by using refcounting.

- Ruby

  - integrate rcov

  - improve unit test coverage to 100%

- Documentation.

  - generate Ruby binding documentation with custom build template similar jaxdoc rubyforge.org/projects/jaxdoc

  - all documentation should meet DOCUMENTATION_STANDARDS

  - documentation in C code to be generated by doxygen

Someday Maybe

- apply for Google Summer of Code 2009

- optimize read and write vint

  - test the following outside of ferret before implementing

  - perform a binary scan using bit-wise or to find out how many bytes need to be written

  - if the write/read will overflow the buffer, split it into two, refreshing the buffer in between

  - use Duff's device to write bytes now that we know how many we need

- add a super fast language based dictionary compression

- add portable stacktrace function. Perhaps implement as an external library.

  - See www.nongnu.org/libunwind/

  - See www.tlug.org.za/wiki/index.php/Obtaining_a_stack_trace_in_C_upon_SIGSEGV

- investigate unscored searching

- user defined sorting

- Fix highlighting to work for external fields

- investigate faster string hashing method

Done

####

- add rake install task

- FIX :create parameter so that it only deletes the files owned by Ferret.

- fix compression. Currently nothing is happening if you set a field to :compress. I guess we'll just assume zlib is installed, as I think it has to be for Ruby to be installed.

- add bzlib support

- integrate gcov

- add a field cache to IndexReader

- setup email alerts for svn commits

- Ranged, unordered searching. Ie search through the index until you have the required number of documents and then break. This will require the ability to start searches from a particular doc-num. + See searcher_search_unordered in the C code and Searcher#scan in Ruby

- improve unit test code. I'd like to implement some way to print out a stack trace when a test fails so that it is easy to find the source of the error.

- catch segfaults and print stack trace so users can post helpful bug tickets. again, see the same links for adding stacktrace to unit tests.

- Add string Sort descripter

- fix memory bug

- add MultiReader interface

- add lexicographical sort (byte sort)

- Add highlighting

- add field compression

- Fix highlighting to work for compressed fields

- Add Ferret::Index::Index

- Fix: + Working Query: field1:value1 AND NOT field2:value2 + Failing Query: field1:value1 AND ( NOT field2:value2 )

- update benchmark suite to use getrusage

[Validate]

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