From 4d1e4573d65a535e8f64527fd42434dcb08f0041 Mon Sep 17 00:00:00 2001
From: Adam Dickmeiss <adam@indexdata.dk>
Date: Tue, 30 May 2006 21:39:15 +0000
Subject: [PATCH] Fixed bug #598: Allow missingValueAction to be specified for
 sortSpec string. By default, the missing value action is
 null. Use ! to specify "abort". Use = followed by
 stringvalue to specify default value.

---
 NEWS           |    5 +++++
 src/sortspec.c |   21 +++++++++++++++++----
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/NEWS b/NEWS
index 42323d3..34dbf9a 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,8 @@
+Allow missingValueAction to be specified for the sortspec string - 
+function yaz_sort_spec. By default, the missing value action is null.
+Use ! to specify "abort". Use = followed by stringvalue to specify default
+value.
+
 Ensured that Present-handler (if defined) is called in GFS before any call to
 fetch-hhndler.  This now includes piggy-backed presents as well as SRW/U
 searchRetrieve requests.
diff --git a/src/sortspec.c b/src/sortspec.c
index 7b5d096..f9a4bc3 100644
--- a/src/sortspec.c
+++ b/src/sortspec.c
@@ -1,8 +1,8 @@
 /*
- * Copyright (C) 1995-2005, Index Data ApS
+ * Copyright (C) 1995-2006, Index Data ApS
  * See the file LICENSE for details.
  *
- * $Id: sortspec.c,v 1.5 2005-06-25 15:46:05 adam Exp $
+ * $Id: sortspec.c,v 1.6 2006-05-30 21:39:15 adam Exp $
  */
 /**
  * \file sortspec.c
@@ -19,7 +19,7 @@
 
 Z_SortKeySpecList *yaz_sort_spec (ODR out, const char *arg)
 {
-    char sort_string_buf[32], sort_flags[32];
+    char sort_string_buf[64], sort_flags[64];
     Z_SortKeySpecList *sksl = (Z_SortKeySpecList *)
         odr_malloc (out, sizeof(*sksl));
     int off;
@@ -27,7 +27,7 @@ Z_SortKeySpecList *yaz_sort_spec (ODR out, const char *arg)
     sksl->num_specs = 0;
     sksl->specs = (Z_SortKeySpec **)odr_malloc (out, sizeof(sksl->specs) * 20);
     
-    while ((sscanf (arg, "%31s %31s%n", sort_string_buf,
+    while ((sscanf (arg, "%63s %63s%n", sort_string_buf,
                     sort_flags, &off)) == 2  && off > 1)
     {
         int i;
@@ -109,6 +109,19 @@ Z_SortKeySpecList *yaz_sort_spec (ODR out, const char *arg)
             case 's':
                 *sks->caseSensitivity = Z_SortKeySpec_caseSensitive;
                 break;
+            case '!':
+                sks->which = Z_SortKeySpec_abort;
+                sks->u.abort = odr_nullval();
+                break;
+            case '=':
+                sks->which = Z_SortKeySpec_missingValueData;
+                sks->u.missingValueData = (Odr_oct*)
+                    odr_malloc(out, sizeof(Odr_oct));
+                i++;
+                sks->u.missingValueData->len = strlen(sort_flags+i);
+                sks->u.missingValueData->size = sks->u.missingValueData->len;
+                sks->u.missingValueData->buf = odr_strdup(out, sort_flags+i);
+                i += strlen(sort_flags+i);
             }
         }
     }
-- 
1.7.10.4