Ferret talk - Jul 2007 - Ferret crashing ruby while highlighting

Hi,

 

I am having a problem where ferret.so is crashing which highlighting
search results. The query string is
"25,42,53,80,88,119,135,139,389,445,464,563,593,636,1441,1442,1444,1515,
1519,1527,1537,1546,3389". In the debugger I can see that the crash
happens in search.c on line 907. The reason is that the excerpt->end
field is -1. I think the reason is because in this code from search.c:

 

            for (e_start = e_end = 0; e_start < mv->size; e_start++) {

                const int start_offset = matches[e_start].start_offset;

                if (e_start > e_end) {

                    running_score = 0.0;

                    e_end = e_start;

                }

                while (e_end < mv->size &&
(matches[e_end].end_offset

                                             <= start_offset +
excerpt_len)) {

                    running_score += matches[e_end].score;

                    e_end++;

                }

                pq_push(excerpt_pq,

                        excerpt_new(e_start, e_end - 1, running_score));

                /* - 0.1 so that earlier matches take priority */

                running_score -= matches[e_start].score;

            }

 

 

e_end is never being incremented beyond 0, so e_end-1 is stored as the
excerpt. However I am not sure why that is.

 

Anyway, thought this bug report might be useful.

 

Regards,

 

Chris Waters

CTO, PhD

Network Chemistry, Inc

Email: chris.waters at networkchemistry.com
<mailto:chris.waters at networkchemistry.com> 

Phone: (650) 858-3125

www.networkchemistry.com <http://www.networkchemistry.com/> 

www.projectwishbone.com <http://www.wirelessve.org/> 

 

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