*+
*  Name:
*     CHR_SYS

*  Purpose:
*     Define the CHR_ private constants.

*  Language:
*     Starlink Fortran 77

*  Type of module:
*     Global constants include file.

*  Description:
*     This file contains the definitions of the global constants used 
*     internally by the CHR_ system.  Note that the definition of ESCAPE
*     is different on UNIX from that on VMS.

*  Authors:
*     ACC: A.C. Charles (STARLINK)
*     {enter_new_authors_here}

*  History:
*     28-SEP-1993 (ACC):
*        Original version adapted from EMS_SYS.
*     {enter_further_changes_here}

*-

*  Global Constants:
      CHARACTER ESCAPE           ! Escape character
*     PARAMETER ( ESCAPE = '\' ) ! VAX
      PARAMETER ( ESCAPE = '\\' ) ! UNIX

      CHARACTER WILDA            ! Single character wild-card
      PARAMETER ( WILDA = '%' )

      CHARACTER WILDN            ! Arbitrary length string wild-card
      PARAMETER ( WILDN = '*' )

*.
