X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=index%2Frecgrs.c;h=4d621efddbfad14eac5cd30373a21f17584d0b06;hb=3fc87bc9adc573a29b4261a6c96c5350d8680a5a;hp=c09f731f8f53b7b2d21b7a18f1f636191be12db1;hpb=852d5f1f9aa0a70f7e54a68143ee86752394a2f2;p=idzebra-moved-to-github.git

diff --git a/index/recgrs.c b/index/recgrs.c
index c09f731..4d621ef 100644
--- a/index/recgrs.c
+++ b/index/recgrs.c
@@ -1,4 +1,4 @@
-/* $Id: recgrs.c,v 1.5 2006-08-22 13:39:27 adam Exp $
+/* $Id: recgrs.c,v 1.7 2006-09-29 10:02:47 adam Exp $
    Copyright (C) 1995-2006
    Index Data ApS
 
@@ -392,20 +392,37 @@ pop, 2003-01-17
 data1_termlist *xpath_termlist_by_tagpath(char *tagpath, data1_node *n)
 {
     data1_absyn *abs = n->root->u.root.absyn;
-    data1_xpelement *xpe = abs->xp_elements;
+
+    data1_xpelement *xpe = 0;
     data1_node *nn;
 #ifdef ENHANCED_XELM 
     struct xpath_location_step *xp;
 #endif
     char *pexpr = xmalloc(strlen(tagpath)+5);
-    int ok = 0;
     
     sprintf (pexpr, "/%s\n", tagpath);
-    for (; xpe; xpe = xpe->next)
+
+    for (xpe = abs->xp_elements; xpe; xpe = xpe->next)
+        xpe->match_state = -1; /* don't know if it matches yet */
+
+    for (xpe = abs->xp_elements; xpe; xpe = xpe->next)
     {
 	int i;
-	ok = dfa_match_first(xpe->dfa->states, pexpr);
-
+        int ok = xpe->match_state;
+        if (ok == -1)
+        {   /* don't know whether there is a match yet */
+            data1_xpelement *xpe1;
+
+            assert(xpe->dfa);
+            ok = dfa_match_first(xpe->dfa->states, pexpr);
+
+#if OPTIMIZE_MELM
+            /* mark this and following ones with same regexp */
+            for (xpe1 = xpe; xpe1; xpe1 = xpe1->match_next)
+                xpe1->match_state = ok;
+#endif
+        }
+        assert (ok == 0 || ok == 1);
         if (ok) {
 #ifdef ENHANCED_XELM 
             /* we have to check the perdicates up to the root node */
@@ -440,7 +457,7 @@ data1_termlist *xpath_termlist_by_tagpath(char *tagpath, data1_node *n)
     
     xfree(pexpr);
     
-    if (ok) {
+    if (xpe) {
 	yaz_log(YLOG_DEBUG, "Got it");
         return xpe->termlists;
     } else {