Fix small bug in headline generation.

Patch from Sushant Sinha <sushant354@gmail.com>
http://archives.postgresql.org/pgsql-hackers/2008-07/msg00785.php

diff --git a/contrib/tsearch2/wparser_def.c b/contrib/tsearch2/wparser_def.c
index 6686257887222aa2face214f4d3dfd24cb7a8190..5ae70067a5b86d34a0a5d770530d66354d41f58f 100644 (file)
--- a/contrib/tsearch2/wparser_def.c
+++ b/contrib/tsearch2/wparser_def.c
@@ -107,7 +107,7 @@ hlCover(HLPRSTEXT * prs, QUERYTYPE * query, int *p, int *q)
    ITEM       *item = GETQUERY(query);
    int         pos = *p;
 
-   *q = 0;
+   *q = -1;
    *p = 0x7fffffff;
 
    for (j = 0; j < query->size; j++)
@@ -129,7 +129,7 @@ hlCover(HLPRSTEXT * prs, QUERYTYPE * query, int *p, int *q)
        item++;
    }
 
-   if (*q == 0)
+   if (*q < 0)
        return false;
 
    item = GETQUERY(query);