X-Git-Url: https://git.dlugolecki.net.pl/?a=blobdiff_plain;f=gom%2Fgom_modify.c;h=b876a9e5cfa2790ff825a629ceec8b915a6c7ccf;hb=ffb96ef37e56f42ac003ee05503bdcc99979da25;hp=3da2fa88e01c54f53dc820a5b269e97fb775e771;hpb=5684a3ce93e11c887cbf3c237fd007d517cb2c30;p=gedcom-parse.git

diff --git a/gom/gom_modify.c b/gom/gom_modify.c
index 3da2fa8..b876a9e 100644
--- a/gom/gom_modify.c
+++ b/gom/gom_modify.c
@@ -24,6 +24,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include "utf8tools.h"
+#include "user_rec.h"
 #include "gom.h"
 #include "gom_internal.h"
 
@@ -77,3 +78,95 @@ char* gom_set_string_for_locale(char** data, const char* locale_str)
 
   return result;
 }
+
+void CLEANFUNC(xref_list)(struct xref_list *obj)
+{
+  if (obj) {
+    DESTROY_CHAIN_ELTS(user_data, obj->extra);
+  }
+}
+
+struct xref_value* gom_set_xref(struct xref_value** data, const char* xref)
+{
+  struct xref_value* result = NULL;
+  struct xref_value* newval = NULL;
+  
+  if (data) {
+    if (xref) {
+      newval = gedcom_get_by_xref(xref);
+      if (!newval)
+	gedcom_error(_("No record found for xref '%s'"), xref);
+    }
+    
+    /* Unreference the old value if not NULL */
+    if (*data)
+      result = gedcom_unlink_xref((*data)->type, (*data)->string);
+    else
+      result = newval;
+    
+    /* Reference the new value if not NULL */
+    if (result != NULL && newval) {
+      result = gedcom_link_xref(newval->type, newval->string);
+      /* On error, perform rollback to old value (guaranteed to work) */
+      if (result == NULL)
+	gedcom_link_xref((*data)->type, (*data)->string);
+    }
+    
+    if (result != NULL) {
+      *data = newval;
+      result = newval;
+    }
+  }
+  return result;
+}
+
+struct xref_list* gom_add_xref(struct xref_list** data, const char* xref)
+{
+  struct xref_value* result = NULL;
+  struct xref_value* newval = NULL;
+  struct xref_list* xrl = NULL;
+
+  if (data && xref) {
+    newval = gedcom_get_by_xref(xref);
+    if (!newval)
+      gedcom_error(_("No record found for xref '%s'"), xref);
+    else {
+      result = gedcom_link_xref(newval->type, newval->string);
+      if (result != NULL) {
+	MAKE_CHAIN_ELT(xref_list, *data, xrl);
+	if (xrl) xrl->xref = newval;
+      }
+    }
+  }
+
+  return xrl;
+}
+
+int gom_remove_xref(struct xref_list** data, const char* xref)
+{
+  struct xref_value* xr = NULL;
+  int result = 1;
+  
+  if (data && xref) {
+    xr = gedcom_get_by_xref(xref);
+    if (!xr)
+      gedcom_error(_("No record found for xref '%s'"), xref);
+    else {
+      struct xref_list* xrl = NULL;
+      for (xrl = *data ; xrl ; xrl = xrl->next) {
+	if (xrl->xref == xr) {
+	  UNLINK_CHAIN_ELT(xref_list, *data, xrl);
+	  gedcom_unlink_xref(xr->type, xr->string);
+	  CLEANFUNC(xref_list)(xrl);
+	  SAFE_FREE(xrl);
+	  result = 0;
+	  break;
+	}
+      }
+      if (result == 1)
+	gedcom_error(_("Xref '%s' to remove not part of chain"), xref);
+    }
+  }
+
+  return result;
+}