Minor fix.

[yaz-moved-to-github.git] / odr / odr_choice.c

diff --git a/odr/odr_choice.c b/odr/odr_choice.c
index 8faf925..f0a8f9a 100644 (file)
--- a/odr/odr_choice.c
+++ b/odr/odr_choice.c
@@ -1,10 +1,47 @@
 /*
- * Copyright (C) 1994, Index Data I/S 
- * All rights reserved.
+ * Copyright (c) 1995, Index Data
+ * See the file LICENSE for details.
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: odr_choice.c,v $
- * Revision 1.3  1995-03-08 12:12:22  quinn
+ * Revision 1.15  1998-02-11 11:53:34  adam
+ * Changed code so that it compiles as C++.
+ *
+ * Revision 1.14  1997/05/14 06:53:57  adam
+ * C++ support.
+ *
+ * Revision 1.13  1997/04/30 08:52:10  quinn
+ * Null
+ *
+ * Revision 1.12  1996/10/08  12:58:17  adam
+ * New ODR function, odr_choice_enable_bias, to control behaviour of
+ * odr_choice_bias.
+ *
+ * Revision 1.11  1995/09/29  17:12:23  quinn
+ * Smallish
+ *
+ * Revision 1.10  1995/09/27  15:02:58  quinn
+ * Modified function heads & prototypes.
+ *
+ * Revision 1.9  1995/08/15  12:00:23  quinn
+ * Updated External
+ *
+ * Revision 1.8  1995/06/19  17:01:51  quinn
+ * This should bring us in sync with the version distributed as 1.0b
+ *
+ * Revision 1.7  1995/06/19  13:06:50  quinn
+ * Fixed simple bug in the code to handle untagged choice elements.
+ *
+ * Revision 1.6  1995/05/16  08:50:53  quinn
+ * License, documentation, and memory fixes
+ *
+ * Revision 1.5  1995/03/18  12:16:31  quinn
+ * Minor changes.
+ *
+ * Revision 1.4  1995/03/14  16:59:38  quinn
+ * Added odr_constructed_more check
+ *
+ * Revision 1.3  1995/03/08  12:12:22  quinn
  * Added better error checking.
  *
  * Revision 1.2  1995/02/09  15:51:48  quinn
@@ -17,18 +54,23 @@
 
 #include <odr.h>
 
-int odr_choice(ODR o, Odr_arm arm[], void *p, int *which)
+int odr_choice(ODR o, Odr_arm arm[], void *p, void *whichp)
 {
-    int i, cl = -1, tg, cn;
+    int i, cl = -1, tg, cn, *which = (int *)whichp, bias = o->choice_bias;
 
     if (o->error)
        return 0;
     if (o->direction != ODR_DECODE && !*(char**)p)
        return 0;
+    o->choice_bias = -1;
     for (i = 0; arm[i].fun; i++)
     {
        if (o->direction == ODR_DECODE)
+       {
+           if (bias >= 0 && bias != arm[i].which)
+               continue;
            *which = arm[i].which;
+       }
        else if (*which != arm[i].which)
            continue;
 
@@ -36,33 +78,48 @@ int odr_choice(ODR o, Odr_arm arm[], void *p, int *which)
        {
            if (o->direction == ODR_DECODE && cl < 0)
            {
+               if (o->stackp > -1 && !odr_constructed_more(o))
+                   return 0;
                if (ber_dectag(o->bp, &cl, &tg, &cn) <= 0)
                    return 0;
            }
            else if (o->direction != ODR_DECODE)
            {
-               cl = arm[i].class;
+               cl = arm[i].zclass;
                tg = arm[i].tag;
            }
-           if (tg == arm[i].tag && cl == arm[i].class)
+           if (tg == arm[i].tag && cl == arm[i].zclass)
            {
                if (arm[i].tagmode == ODR_IMPLICIT)
                {
                    odr_implicit_settag(o, cl, tg);
-                   return (*arm[i].fun)(o, p, 0);
+                   return (*arm[i].fun)(o, (char **)p, 0);
                }
                /* explicit */
                if (!odr_constructed_begin(o, p, cl, tg))
                    return 0;
-               return (*arm[i].fun)(o, p, 0) &&
+               return (*arm[i].fun)(o, (char **)p, 0) &&
                    odr_constructed_end(o);
            }
        }
        else  /* no tagging. Have to poll type */
-           if ((*arm[i].fun)(o, p, 0))
+       {
+           if ((*arm[i].fun)(o, (char **)p, 1) && *(char**)p)
                return 1;
+       }
     }
     *which = -1;
     *(char*)p = 0;
     return 0;
 }
+
+void odr_choice_bias(ODR o, int what)
+{
+    if (o->enable_bias)
+        o->choice_bias = what;
+}
+
+void odr_choice_enable_bias (ODR o, int mode)
+{
+    o->enable_bias = mode;
+}