SUBROUTINE HSI1_COPY( NARG, ARGS, OARG, STATUS ) *+ * Name: * HSI1_COPY * Purpose: * Copy history from one HDS file to another * Language: * Starlink Fortran * Invocation: * CALL HSI1_COPY( NARG, ARGS, OARG, STATUS ) * Description: * Copies the entire HISTORY structure from one HDS file to another, if * it exists. It is not an error for the structure to be absent. Any * existing history in the output file is deleted. * Arguments: * NARG = INTEGER (given) * Number of method arguments * ARGS(*) = INTEGER (given) * ADI identifier of method arguments * OARG = INTEGER (returned) * Output data * STATUS = INTEGER (given and returned) * The global status. * Examples: * {routine_example_text} * {routine_example_description} * Pitfalls: * {pitfall_description}... * Notes: * {routine_notes}... * Prior Requirements: * {routine_prior_requirements}... * Side Effects: * Creates a PSF_SLOT property on the property list of the first * argument if one is not already present. * Algorithm: * {algorithm_description}... * Accuracy: * {routine_accuracy} * Timing: * {routine_timing} * External Routines Used: * DAT: * DAT_ANNUL - Release an HDS locator * DAT_ERASE - Erase an an HDS component * DAT_FIND - Find an HDS component * DAT_COPY - Copy an HDS component * DAT_THERE - Does an HDS component exist? * Implementation Deficiencies: * {routine_deficiencies}... * References: * HSI Subroutine Guide : http://www.sr.bham.ac.uk/asterix-docs/Programmer/Guides/hsi.html * Keywords: * package:hsi, usage:private * Copyright: * Copyright (C) University of Birmingham, 1995 * Authors: * DJA: David J. Allan (Jet-X, University of Birmingham) * {enter_new_authors_here} * History: * 14 Feb 1995 (DJA): * Original version. * 24 Jul 1995 (DJA): * Added test to see if input is primitive. * {enter_changes_here} * Bugs: * {note_any_bugs_here} *- * Type Definitions: IMPLICIT NONE ! No implicit typing * Global Constants: INCLUDE 'SAE_PAR' ! SAE constants INCLUDE 'ADI_PAR' ! ADI constants INCLUDE 'DAT_PAR' ! HDS constants * Arguments Given: INTEGER NARG ! # arguments INTEGER ARGS(*) ! Method arguments * Arguments Returned: INTEGER OARG ! Returned data * Status: INTEGER STATUS ! Global status * Local Variables: CHARACTER*(DAT__SZLOC) HLOC ! Input HISTORY object CHARACTER*(DAT__SZLOC) ILOC ! Input object CHARACTER*(DAT__SZLOC) OLOC ! Output object LOGICAL IPRIM ! Input is primitive? LOGICAL THERE ! Exists in input? *. * Check inherited global status. IF ( STATUS .NE. SAI__OK ) RETURN * No output from this method OARG = ADI__NULLID * Extract first locator CALL ADI1_GETLOC( ARGS(1), ILOC, STATUS ) * Is input primitive? CALL DAT_PRIM( ILOC, IPRIM, STATUS ) IF ( .NOT. IPRIM ) THEN * History exists? CALL DAT_THERE( ILOC, 'HISTORY', THERE, STATUS ) IF ( THERE ) THEN * Extract output locator CALL ADI1_GETLOC( ARGS(2), OLOC, STATUS ) * Delete existing history in output CALL DAT_THERE( OLOC, 'HISTORY', THERE, STATUS ) IF ( THERE ) THEN CALL DAT_ERASE( OLOC, 'HISTORY', STATUS ) END IF * Copy that component CALL DAT_FIND( ILOC, 'HISTORY', HLOC, STATUS ) CALL DAT_COPY( HLOC, OLOC, 'HISTORY', STATUS ) CALL DAT_ANNUL( HLOC, STATUS ) * End of input history present test END IF * End of primitive test END IF * Report any errors IF ( STATUS .NE. SAI__OK ) THEN CALL AST_REXIT( 'HSI1_COPY', STATUS ) END IF END