X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=dict%2Flookgrep.c;h=23369702f7a18c7cb1ddbe0a7ba13025a6a57463;hb=65615b66e805376b23f24a51e7d048f4f58e6525;hp=149eaf1d774530923b12c5cd6461d89a9f8b35e3;hpb=275c0e8eec44714b41300f6e743dc2e09f353aec;p=idzebra-moved-to-github.git

diff --git a/dict/lookgrep.c b/dict/lookgrep.c
index 149eaf1..2336970 100644
--- a/dict/lookgrep.c
+++ b/dict/lookgrep.c
@@ -4,7 +4,16 @@
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: lookgrep.c,v $
- * Revision 1.10  1995-11-16 17:00:44  adam
+ * Revision 1.13  1996-01-08 09:09:30  adam
+ * Function dfa_parse got 'const' string argument.
+ *
+ * Revision 1.12  1995/12/11  09:04:48  adam
+ * Bug fix: the lookup/scan/lookgrep didn't handle empty dictionary.
+ *
+ * Revision 1.11  1995/12/06  14:43:02  adam
+ * New function: dict_delete.
+ *
+ * Revision 1.10  1995/11/16  17:00:44  adam
  * Changed stupid log.
  *
  * Revision 1.9  1995/10/27  13:58:09  adam
@@ -365,11 +374,12 @@ int dict_lookup_grep (Dict dict, Dict_char *pattern, int range, void *client,
 {
     MatchWord *Rj;
     Dict_char prefix[MAX_LENGTH+1];
-    char *this_pattern = pattern;
+    const char *this_pattern = pattern;
     MatchContext *mc;
     struct DFA *dfa = dfa_init();
     int i, d;
 
+    logf (LOG_DEBUG, "dict_lookup_grep '%s' range=%d", pattern, range);
     i = dfa_parse (dfa, &this_pattern);
     if (i || *this_pattern)
     {
@@ -399,8 +409,11 @@ int dict_lookup_grep (Dict dict, Dict_char *pattern, int range, void *client,
         }
     }
     *max_pos = 0;
-    i = dict_grep (dict, 1, mc, Rj, 0, client, userfunc, prefix, dfa,
-                   max_pos);
+    if (dict->head.last > 1)
+        i = dict_grep (dict, 1, mc, Rj, 0, client, userfunc, prefix,
+                       dfa, max_pos);
+    else
+        i = 0;
     logf (LOG_DEBUG, "max_pos = %d", *max_pos);
     dfa_delete (&dfa);
     xfree (Rj);