Reference count struct dictionary.

[pspp] / src / language / data-io / get.c

diff --git a/src/language/data-io/get.c b/src/language/data-io/get.c
index 1218a27b18bdfc147ca690581cec4bacdb015811..6e99187ba11c5a311d137b2f6be1dbc0990ae3ed 100644 (file)
--- a/src/language/data-io/get.c
+++ b/src/language/data-io/get.c
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 1997-9, 2000, 2006, 2007, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+   Copyright (C) 1997-9, 2000, 2006-2007, 2010-15 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -31,6 +31,7 @@
 #include "language/lexer/lexer.h"
 #include "libpspp/compiler.h"
 #include "libpspp/misc.h"
+#include "libpspp/message.h"
 #include "libpspp/str.h"
 
 #include "gl/xalloc.h"
@@ -122,10 +123,17 @@ parse_read_command (struct lexer *lexer, struct dataset *ds,
       goto error;
     }
 
-  reader = any_reader_open (fh, encoding, &dict);
+  reader = any_reader_open_and_decode (fh, encoding, &dict, NULL);
   if (reader == NULL)
     goto error;
 
+  if (dict_get_var_cnt (dict) == 0)
+    {
+      msg (SE, _("%s: Data file dictionary has no variables."),
+           fh_get_name (fh));
+      goto error;
+    }
+
   stage = case_map_stage_create (dict);
 
   while (lex_token (lexer) != T_ENDCMD)
@@ -153,7 +161,7 @@ parse_read_command (struct lexer *lexer, struct dataset *ds,
   fh_unref (fh);
   casereader_destroy (reader);
   if (dict != NULL)
-    dict_destroy (dict);
+    dict_unref (dict);
   free (encoding);
   return CMD_CASCADING_FAILURE;
 }