/*
*****************************************************************************
*									    *
*  Copyright (c) 1978, 1979, 1980	                                    *
*  by DIGITAL Equipment Corporation, Maynard, Mass.			    *
* 									    *
*  This software is furnished under a license and may be used and  copied   *
*  only  in  accordance  with  the  terms  of  such  license and with the   *
*  inclusion of the above copyright notice.  This software or  any  other   *
*  copies  thereof may not be provided or otherwise made available to any   *
*  other person.  No title to and ownership of  the  software  is  hereby   *
*  transferred.							 	    *
* 									    *
*  The information in this software is subject to change  without  notice   *
*  and  should  not  be  construed  as  a commitment by DIGITAL Equipment   *
*  Corporation.							   	    *
* 									    *
*  DIGITAL assumes no responsibility for the use or  reliability  of  its   *
*  software on equipment which is not supplied by DIGITAL.		    *
*									    *
*****************************************************************************

facility:

	SDL (Structure Definition Language)


author:
	Paul A. Calato

*/

/*			C H A N G E    L O G

      Date	! Name	! Description
________________!_______!______________________________________________________
   		!  	! 					
    23-Nov-1985	|  pc	| Adding copyright header and change log.
________________!_______!______________________________________________________
*/


/****************************************************************/
/*								*/
/* DO_VAR_STRING handles character varying strings. Character	*/
/* varying strings are prefixed with a word length. To do this	*/
/* in Basic an aggregate with length and text is put out. If    */
/* it is a level one item a variable is declared of that aggregate */
/*								*/
/****************************************************************/

do_var_string : proc (cur_node,level,dec,dim,str_len);

					    /********************/
					    /*			*/
					    /* DO_VAR_STRING	*/
					    /*			*/
					    /********************/
%include 'sdl$library:sdlnodef.in';

/* declare variables */
declare
    cur_node pointer,			    /* pointer to the current node  */
    level fixed binary(31),		    /* level in the aggregate	    */
    dec char(*) var,			    /* declare,common or external   */
    dim char(*) var,			    /* dimension, if any	    */
    str_len char(*) var,		    /* string length		    */
    v_tabs char(132) var,		    /* tabs			    */
    typ_buf char(15) var,		    /* record or group		    */
    buf char(1024) var;			    /* output buffer		    */


DCL OUTPUT_BUF ENTRY (
	character(1024) VARYING );

DCL ADD_COMMENTS ENTRY (
	pointer,
	character(1024) VARYING );

DCL TABS ENTRY (
	pointer,
	fixed binary(31),
	bit(1) ) returns(char(132) var) ;




    v_tabs = tabs(cur_node,level,'1'b);
    if( level > 1)
    then do;
	/* varying strings declared with an aggregate have the dimension */
	/* appended to the group name					 */
	buf = v_tabs || 'group ' || cur_node->nod$t_name || dim;
	call add_comments(cur_node,buf);
	typ_buf = 'group ';
    end;
    else do;    
	buf = v_tabs || 'record ' || cur_node->nod$t_name ;
	typ_buf = 'record ';
    end;

/*
 * output the structure declaration 
 */
    call output_buf(buf);
    call output_buf(v_tabs || '   WORD str_len');
    call output_buf(v_tabs || '   STRING str_text' || str_len);
    call output_buf(v_tabs || 'end ' || typ_buf || cur_node->nod$t_name);

    if( level = 1 )
    then do;
	/* varying strings declared as level one items have the	*/
	/* dimension appended to the variable declaration	*/
	buf = v_tabs || dec || cur_node->nod$t_name || ' ' || cur_node->nod$t_name || dim ;
	call add_comments(cur_node,buf);
	call output_buf(buf);
    end;

end do_var_string;