162 lines
4.5 KiB
Objective-C
162 lines
4.5 KiB
Objective-C
/* CardVersitRenderer.m - this file is part of SOPE
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*
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* Copyright (C) 2006-2012 Inverse inc.
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*
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* Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#import <Foundation/NSArray.h>
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#import <Foundation/NSEnumerator.h>
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#import <Foundation/NSDictionary.h>
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#import <Foundation/NSString.h>
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#import <NGExtensions/NSObject+Logs.h>
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#import "CardElement.h"
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#import "CardGroup.h"
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#import "NSString+NGCards.h"
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#import "NSDictionary+NGCards.h"
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#import "CardVersitRenderer.h"
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@interface CardVersitRenderer (PrivateAPI)
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- (NSString *) renderElement: (CardElement *) anElement;
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- (NSString *) renderGroup: (CardGroup *) aGroup;
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@end
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@implementation CardVersitRenderer
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- (NSString *) render: (id) anElement
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{
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return (([anElement isKindOfClass: [CardGroup class]])
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? [self renderGroup: anElement]
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: [self renderElement: anElement]);
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}
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- (NSString *) renderElement: (CardElement *) anElement
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{
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NSMutableString *rendering;
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NSDictionary *attributes;
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NSMutableDictionary *values;
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NSString *finalRendering, *tag;
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if (![anElement isVoid])
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{
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rendering = [NSMutableString string];
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if ([anElement group])
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[rendering appendFormat: @"%@.", [anElement group]];
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tag = [anElement tag];
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if (!(tag && [tag length]))
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{
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tag = @"<no-tag>";
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[self warnWithFormat: @"card element of class '%@' has an empty tag",
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NSStringFromClass([anElement class])];
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}
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[rendering appendString: [tag uppercaseString]];
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/* parameters */
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attributes = [anElement attributes];
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if ([attributes count])
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{
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[rendering appendString: @";"];
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[attributes versitRenderInString: rendering
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withKeyOrdering: [anElement orderOfAttributeKeys]
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asAttributes: YES];
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}
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/* values */
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values = [anElement values];
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[rendering appendString: @":"];
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[values versitRenderInString: rendering
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withKeyOrdering: [anElement orderOfValueKeys]
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asAttributes: NO];
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if ([rendering length] > 0)
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[rendering appendString: @"\r\n"];
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finalRendering = [rendering foldedForVersitCards];
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}
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else
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finalRendering = @"";
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return finalRendering;
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}
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- (NSString *) renderGroup: (CardGroup *) aGroup
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{
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NSEnumerator *children;
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CardElement *currentChild;
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NSMutableString *rendering;
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NSString *groupTag;
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NSArray *order;
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rendering = [NSMutableString string];
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groupTag = [aGroup tag];
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if (!(groupTag && [groupTag length]))
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{
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groupTag = @"<no-tag>";
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[self warnWithFormat: @"card group of class '%@' has an empty tag",
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NSStringFromClass([aGroup class])];
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}
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groupTag = [groupTag uppercaseString];
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[rendering appendFormat: @"BEGIN:%@\r\n", groupTag];
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// We reorder the group elemments, if necessary
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order = [aGroup orderOfElements];
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if (order)
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{
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NSMutableArray *orderedElements, *originalElements;
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NSArray *currentChildren;
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int i, c;
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originalElements = [NSMutableArray arrayWithArray: [aGroup children]];
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orderedElements = [NSMutableArray array];
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c = [order count];
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for (i = 0; i < c; i++)
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{
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currentChildren = [aGroup childrenWithTag: [order objectAtIndex: i]];
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[orderedElements addObjectsFromArray: currentChildren];
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[originalElements removeObjectsInArray: currentChildren];
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}
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// We add the remaining, unordered elements
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[orderedElements addObjectsFromArray: originalElements];
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children = [orderedElements objectEnumerator];
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}
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else
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{
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children = [[aGroup children] objectEnumerator];
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}
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while ((currentChild = [children nextObject]))
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[rendering appendString: [self render: currentChild]];
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[rendering appendFormat: @"END:%@\r\n", groupTag];
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return rendering;
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}
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@end
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