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Date: Sat, 19 Jun 2010 06:33:22 -0700
To: lucy-dev@lucene.apache.org
Subject: Re: Do you need help on Lucy?
Message-ID: <20100619133322.GA15522@rectangular.com>
References: <20100619025503.GA14433@rectangular.com>
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From: Marvin Humphrey <marvin@rectangular.com>

On Sat, Jun 19, 2010 at 07:00:56AM +0200, VOITPTRPTR wrote:
> How one can contribute  (I'm a C developer) to Lucy?

We have a wiki page up that covers the mechanics of contributing:

    http://wiki.apache.org/lucy/HowToContribute

Most people choose what they want to work on based on what they need or what
interests them.  Since you don't mention wanting to work on a particular
problem, there are a some general C tasks we could use help on and that don't
require a lot of prior knowledge about the code base; I'll describe one of
those.

A lot of Lucy code was originally written for C89.  We have since changed our
C dialect to "the overlap of C99 and C++", allowing us to use a number of
idioms which result in cleaner, more readable code.  One of these is the
declaration of loop variables within a "for" construct:

    Index: core/Lucy/Object/VArray.c
    ===================================================================
    --- core/Lucy/Object/VArray.c    (revision 956160)
    +++ core/Lucy/Object/VArray.c    (working copy)
    @@ -55,8 +55,7 @@
     VA_dump(VArray *self)
     {
         VArray *dump = VA_new(self->size);
    -    uint32_t i, max;
    -    for (i = 0, max = self->size; i < max; i++) {
    +    for (uint32_t i = 0, max = self->size; i < max; i++) {
             Obj *elem = VA_Fetch(self, i);
             if (elem) { VA_Store(dump, i, Obj_Dump(elem)); }
         }

A good place to start would be that file, VArray.c.

Thanks for inquiring,

Marvin Humphrey