//---------------------------------------------------------------------------------------
//  EDSLConditionalElement.m created by erik on Thu Jun 13 2002
//  @(#)$Id: EDSLConditionalElement.m,v 1.2 2002-12-16 22:42:33 erik Exp $
//
//  Copyright (c) 2002 by Erik Doernenburg. All rights reserved.
//
//  Permission to use, copy, modify and distribute this software and its documentation
//  is hereby granted, provided that both the copyright notice and this permission
//  notice appear in all copies of the software, derivative works or modified versions,
//  and any portions thereof, and that both notices appear in supporting documentation,
//  and that credit is given to Erik Doernenburg in all documents and publicity
//  pertaining to direct or indirect use of this code or its derivatives.
//
//  THIS IS EXPERIMENTAL SOFTWARE AND IT IS KNOWN TO HAVE BUGS, SOME OF WHICH MAY HAVE
//  SERIOUS CONSEQUENCES. THE COPYRIGHT HOLDER ALLOWS FREE USE OF THIS SOFTWARE IN ITS
//  "AS IS" CONDITION. THE COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY
//  DAMAGES WHATSOEVER RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE
//  OR OF ANY DERIVATIVE WORK.
//---------------------------------------------------------------------------------------

#import <EDCommon/EDCommon.h>
#import "EDStyleSheetContext.h"
#import "EDSLConditionalElement.h"


//---------------------------------------------------------------------------------------
    @implementation EDSLConditionalElement
//---------------------------------------------------------------------------------------

//---------------------------------------------------------------------------------------
//	PROCESSING
//---------------------------------------------------------------------------------------

- (void)appendToString:(NSMutableString *)buffer inContext:(EDStyleSheetContext *)context
{
    BOOL	 condition;
    NSString *varValue;

    if((varValue = [context valueForVariable:[self valueForAttribute:@"var"]]) == nil)
        varValue = @"";
    if([varValue isKindOfClass:[NSString class]] == NO)
        varValue = [varValue description];

    condition = [[self valueForAttribute:@"not"] intValue] != YES;

    if([[self valueForAttribute:@"value"] isEqual:varValue] == condition)
        [super appendToString:buffer inContext:context];
}


//---------------------------------------------------------------------------------------
    @end
//---------------------------------------------------------------------------------------