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Hi! <B>Alls<BR><BR> i have read code of xapian more than one month,i leant a lot from your code<BR>both form design of search engine and code details.<BR> however, something make me in a puzzle. <BR> Take RefCntBase as an example, it seems that it is a "kernel" of xapian, as<BR>many classes inherit from it. But,what is it funtion? why is it so important?<BR> Another confusion is about Valuerangeprocess. I really want to make clear <BR>differences between valuerange-search and common search in details. I added <BR> Xapian::DateValueRangeProcessor date_proc(2, true, 1930); <BR> qp.add_valuerangeprocessor(&date_proc); <BR>in my code and my code works well. then, I debug it using gdb. however,i can not be inspired. Is there any important information i did not catch?<BR><BR>would you please give me some advice?<BR><BR>thanks a lot!<BR><BR>baijl</B><br /><hr />更多热辣资讯尽在新版MSN首页！ <a href='http://cn.msn.com/' target='_new'>立刻访问！</a></body>
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