Index: trunk/psLib/src/math/psRegion.h
===================================================================
--- trunk/psLib/src/math/psRegion.h	(revision 11248)
+++ trunk/psLib/src/math/psRegion.h	(revision 13741)
@@ -2,6 +2,6 @@
  * @brief image regions and related functions
  *
- * $Revision: 1.8 $ $Name: not supported by cvs2svn $
- * $Date: 2007-01-23 22:47:23 $
+ * $Revision: 1.9 $ $Name: not supported by cvs2svn $
+ * $Date: 2007-06-10 17:54:05 $
  * Copyright 2004-2005 Maui High Performance Computing Center, University of Hawaii
  */
@@ -72,4 +72,18 @@
 );
 
+/** Create a psRegion from a string in IRAF form '[x0:x1,y0:y1]', returning range parities
+ *
+ *  Create a psRegion using the range defined by a string in the standard IRAF form
+ *  '[x0:x1,y0:y1]'.  Unlike psRegionFromString, the ranges may have x0 > x1 or y0 > y1, in
+ *  which case the xParity or yParity terms will be set to -1 (instead of the default +1).
+ *
+ *  @return psRegion:       A new psRegion struct, or NULL is not successful.
+ */
+psRegion psRegionAndParityFromString(
+    int *xParity,		      ///< +1 if x0 <= x1, -1 otherwise
+    int *yParity,		      ///< +1 if y0 <= y1, -1 otherwise
+    const char* region		      ///< image rectangular region in the form '[x0:x1,y0:y1]'
+);
+
 /** Create a string of the standard IRAF form '[x0:x1,y0:y1]' from a psRegion.
  *