[Plplot-cvs] SF.net SVN: plplot:[10741] trunk/src/plcore.c

[<ai...@us...>]

Revision: 10741
          http://plplot.svn.sourceforge.net/plplot/?rev=10741&view=rev
Author:   airwin
Date:     2010-01-07 07:09:26 +0000 (Thu, 07 Jan 2010)

Log Message:
-----------
If a device is not explicitly specified (e.g. via "-dev ..." on the
command line), the device given by the value of the PLPLOT_DEV
environment variable, if defined and non-empty, will be used.

Thanks to David MacMahon for this patch.

Modified Paths:
--------------
    trunk/src/plcore.c

Modified: trunk/src/plcore.c
===================================================================
--- trunk/src/plcore.c	2010-01-07 00:53:13 UTC (rev 10740)
+++ trunk/src/plcore.c	2010-01-07 07:09:26 UTC (rev 10741)
@@ -3077,7 +3077,20 @@
 {
     int  dev, i, count, length;
     char response[80];
+    char * devname_env;
 
+/* If device name is not already specified, try to get it from environment */
+
+    if ( plsc->DevName[0] == '\0' )
+    {
+        devname_env = getenv( "PLPLOT_DEV" );
+        if ( devname_env )
+        {
+            strncpy( plsc->DevName, devname_env, sizeof ( plsc->DevName ) - 1 );
+            plsc->DevName[sizeof ( plsc->DevName ) - 1] = '\0';
+        }
+    }
+
 /* Device name already specified.  See if it is valid. */
 
     if ( *( plsc->DevName ) != '\0' && *( plsc->DevName ) != '?' )


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