output: Make it possible to push and pop output engines.

[pspp] / src / output / driver-provider.h

diff --git a/src/output/driver-provider.h b/src/output/driver-provider.h
index df31637379b070cf3c5ddf5b90c4f9948f1f4b91..754b0d0b5677adaa54b7f37c550dfe643fe22a20 100644 (file)
--- a/src/output/driver-provider.h
+++ b/src/output/driver-provider.h
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 1997-9, 2000, 2007, 2009, 2010 Free Software Foundation, Inc.
+   Copyright (C) 1997-9, 2000, 2007, 2009, 2010, 2012, 2014 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
@@ -80,6 +80,12 @@ struct output_driver_factory
     /* The file extension, without the leading dot, e.g. "pdf". */
     const char *extension;
 
+    /* The default file name, including extension.
+
+       If this is "-", that implies that by default output will be directed to
+       stdout. */
+    const char *default_file_name;
+
     /* Creates a new output driver of this class.  NAME and TYPE should be
        passed directly to output_driver_init.  Returns the new output driver if
        successful, otherwise a null pointer.