/*
 *	aegis - project change supervisor
 *	Copyright (C) 1999, 2001 Peter Miller;
 *	All rights reserved.
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	This program is distributed in the hope that it will be useful,
 *	but WITHOUT ANY WARRANTY; without even the implied warranty of
 *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *	GNU General Public License for more details.
 *
 *	You should have received a copy of the GNU General Public License
 *	along with this program; if not, write to the Free Software
 *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * MANIFEST: functions to manipulate formeditnums
 */

#include <ael/formeditnum.h>
#include <error.h> /* for assert */
#include <output.h>


void
list_format_edit_number(edit_col, src_data)
	output_ty	*edit_col;
	fstate_src	src_data;
{
	if
	(
		src_data->edit_origin
	&&
		src_data->edit
	)
	{
		/*
		 * We have both the original version copied, and the
		 * current head revision.  Print them both, with a
		 * notation implying ``from the old one to the new one''
		 * if they differ.  Only print one if thay are the same.
		 */
		assert(src_data->edit->revision);
		assert(src_data->edit_origin->revision);
		output_fprintf
		(
			edit_col,
			"%4s",
			src_data->edit_origin->revision->str_text
		);
		if
		(
			str_equal
			(
				src_data->edit->revision,
				src_data->edit_origin->revision
			)
		)
			return;
		output_fprintf
		(
			edit_col,
			" -> %s",
			src_data->edit->revision->str_text
		);
		return;
	}

	if (src_data->edit_origin)
	{
		/*
		 * The "original version" copied.
		 */
		assert(src_data->edit_origin->revision);
		output_fprintf
		(
			edit_col,
			"%4s",
			src_data->edit_origin->revision->str_text
		);
	}
	if (src_data->edit)
	{
		/*
		 * For active branches, the current
		 * head revision.  For completed changes
		 * and branches, the revision at aeipass.
		 */
		assert(src_data->edit->revision);
		output_fprintf
		(
			edit_col,
			"%4s",
			src_data->edit->revision->str_text
		);
	}
}